Regulation No 120 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of internal combustion engines to be installed in agricultural and forestry tractors and in non-road mobile machinery, with


Published: 2010-09-30

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L_2010257EN.01028001.xml

30.9.2010   

EN

Official Journal of the European Union

L 257/280
Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at:
http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html
Regulation No 120 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of internal combustion engines to be installed in agricultural and forestry tractors and in non-road mobile machinery, with regard to the measurement of the net power, net torque and specific fuel consumption
Date of entry into force: 6 April 2005
CONTENTS
REGULATION

1.
Scope
2.
Definitions
3.
Application for approval
4.
Approval
5.
Specifications and tests
6.
Conformity of production
7.
Penalties for non-conformity of production
8.
Modification and extension of approval of an engine type or engine family
9.
Production definitely discontinued
10.
Names and addresses of technical services responsible for conducting approval tests, and of administrative departmentsANNEXES

Annex 1 —

Essential characteristics of the internal combustion engine and general information concerning the conduct of tests
Appendix 1— Essential characteristics of the engine/parent engine
Appendix 2— Essential characteristics of the engine family
Appendix 3— Essential characteristics of engine type within the family

Annex 2 —
Communication concerning the approval or extension or refusal or withdrawal of approval or production definitely discontinued of an engine or engine family pursuant to Regulation No 120
Annex 3 —
Arrangements of approval marks
Annex 4 —

Method for measuring internal combustion engine net power
Appendix— Results of tests for measuring net power engine

Annex 5 —
Essential characteristics of the engine family
Annex 6 —
Checks on conformity of production
Annex 7 —
Technical data of reference fuels1.   SCOPE

1.1.

This Regulation applies to the representation of the curves as a function of engine speed of the power, torque and specific fuel consumption at full load, indicated by the manufacturer for internal combustion engines to be used:
1.1.1.

in category T vehicles (1);

1.1.2.

in machinery intended and suited to move, or to be moved on the ground, with or without road, operated under intermittent or constant speed.

1.2.

The internal combustion engines belong to one of the following categories:
1.2.1.

Reciprocating internal combustion engines (positive-ignition or compression-ignition), but excluding free piston engines;

1.2.2.

Rotary piston engines (positive-ignition or compression-ignition).
2.   DEFINITIONS

2.1.

‘Approval of an engine’ means the approval of an engine type with regard to its net power measured in accordance with the procedure specified in Annex 4 to this Regulation;

2.2.

‘Approval of an engine family’ means the approval of the members of an engine family with regard to their net power in accordance with the procedure specified in Annexes 5 or 6 to this Regulation;

2.3.

‘Engine type’ means a category of engines which do not differ in such essential engine characteristics as defined in Annex 1 — Appendix 3;

2.4.

‘Engine family’ means a manufacturer’s grouping of engines which, through their design, fulfil the grouping criteria laid down in Annex 5 to this Regulation;

2.5.

‘Parent engine’ means an engine selected from an engine family in such a way that it complies with requirements set out in Annex 5 of this Regulation;

2.6.

‘Net power’ means the power obtained on a test bench at the end of the crankshaft or its equivalent at the corresponding engine speed with the auxiliaries and equipment listed in Table 1 of Annex 4 to this Regulation, determined under reference atmospheric conditions;

2.7.

‘Rated net power’ means engine net power as declared by the manufacturer at rated speed;

2.8.

‘Maximum net power’ means the maximum value of the net power measured at full engine load;

2.9.

‘Rated speed’ means the maximum full load speed allowed by the governor, as specified by the manufacturer;

2.10.

‘Maximum net power speed’ means the engine speed at which the maximum net power is obtained, as specified by the manufacturer;

2.11.

‘Maximum torque speed’ means the engine speed at which the maximum torque is obtained, as specified by the manufacturer;

2.12.

‘Maximum torque’ means the maximum value of the net torque measured at full engine load.
3.   APPLICATION FOR APPROVAL

3.1.

The application for approval of an engine type or an engine family with regard to the measurement of the net power shall be submitted by the manufacturer or by his duly accredited representative.

3.2.

It shall be accompanied by the following documents in triplicate: description of the engine type or engine family comprising all the relevant particulars referred to in Annex 1 to this Regulation.

3.3.

An engine representative of the engine type to be approved, or the parent engine, in case of an engine family, fitted with the equipment prescribed in Annex 4 to this Regulation, shall be submitted to the technical service conducting the approval tests.
4.   APPROVAL

4.1.

If the power of the engine submitted for approval pursuant to this Regulation was measured according to the specifications of paragraph 5 below, approval of the engine type or family shall be granted.

4.2.

An approval number shall be assigned to each engine type or family approved. Its first two digits (at present 00 for the Regulation in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the Regulation at the time of issue of the approval. The same Contracting Party shall not assign the same number to another engine type or family.

4.3.

Notice of approval or of extension or of refusal of approval of an engine type or an engine family pursuant to this Regulation shall be communicated to the Parties to the 1958 Agreement applying this Regulation by means of a form conforming to the model in Annex 2 to this Regulation.

4.4.

There shall be affixed, conspicuously and in a readily accessible place as specified on the approval form, to every engine conforming to an engine type or an engine family approved under this Regulation an international approval mark consisting of:
4.4.1.

A circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted approval (2);

4.4.2.

The number of this Regulation, followed by the letter ‘R’, a dash and the approval number to the right of the circle prescribed in paragraph 4.4.1.
Alternatively, instead of affixing these approval marks and symbols to the engine, the manufacturer may decide that engine approved under this Regulation shall be accompanied by a document giving this information in order to enable the approval marks and symbol to be attached to the vehicle.

4.5.

If the engine conforms to an approved type or family under one or more other Regulations annexed to the Agreement, in the country which has granted approval under this Regulation, the symbol prescribed in paragraph 4.4.1 need not be repeated; in such a case the Regulation and approval numbers and the additional symbols of all the Regulations under which approval has been granted under this Regulation shall be placed in vertical columns to the right of the symbol prescribed in paragraph 4.4.1.

4.6.

The approval mark shall be placed close to or on the data plate affixed by the manufacturer to the approved type.

4.7.

Annex 3 to this Regulation gives examples of arrangements of approval marks.

4.8.

Every engine conforming to an engine type or an engine family approved under this Regulation must bear, in addition to the approval mark:
4.8.1.

the trademark or trade name of the manufacturer of the engine;

4.8.2.

the manufacturer’s engine code.
5.   SPECIFICATIONS AND TESTS
5.1.   General
The components liable to affect the power of the engine shall be so designed, constructed and assembled as to enable the engine in normal use, despite the vibrations to which it may be subjected, to comply with the provisions of this Regulation.
5.2.   Description of tests for internal combustion engines
5.2.1.   The net power test shall consist of a run at full throttle for positive-ignition engines and at fixed full-load fuel injection pump setting for compression-ignition engines, the engine being equipped as specified in Table 1 of Annex 4 to this Regulation.
5.2.2.   Measurements shall be taken at a sufficient number of engine speeds to define correctly the power, torque and specific fuel consumption curves between the lowest and the highest engine speeds recommended by the manufacturer. This range of speeds must include the rotational speeds at which the engine produces its rated net power, its maximum power and its maximum torque.
5.2.3.   The fuel used shall be the following:

5.2.3.1.

For positive-ignition engines fuelled with petrol:
The fuel used shall be the reference fuel specified in Annex 7.

5.2.3.2.

For positive-ignition engines fuelled with LPG:
5.2.3.2.1.

In the case of an engine with self-adaptive fuelling:
The fuel used shall be the one available on the market. In any case of dispute the fuel shall be one of the reference fuels specified in Annex 7;

5.2.3.2.2.

In the case of an engine without self-adaptive fuelling:
The fuel used shall be the reference fuel specified in Annex 7 with the lowest C3-content, or

5.2.3.2.3.

In the case of an engine labelled for one specific fuel composition:
The fuel used shall be the fuel for which the engine is labelled.

5.2.3.2.4.

The fuel used shall be specified in the test report.

5.2.3.3.

For positive-ignition engines fuelled with natural gas:
5.2.3.3.1.

In the case of an engine with self-adaptive fuelling:
The fuel used shall be the one available on the market. In any case of dispute the fuel shall be one of the references fuels specified in Annex 7;

5.2.3.3.2.

In the case of an engine without self-adaptive fuelling:
The fuel used shall be the one available on the market with the Wobbe Index at least 52,6 MJm–3 (20 °C, 101,3 kPa). In case of dispute the fuel used shall be the reference fuel GR specified in Annex 7, i.e. the fuel with the highest Wobbe Index, or

5.2.3.3.3.

In the case of an engine labelled for a specific range of fuels:
The fuel used shall be the one available on the market with the Wobbe Index at least 52,6 MJm–3 (20 °C, 101,3 kPa) if the engine is labelled for the H-range of gases, or at least 47,2 MJm–3 (20 °C, 101,3 kPa) if the engine is labelled for the L-range of gases. In case of dispute the fuel used shall be the reference fuel GR specified in Annex 7 if the engine is labelled for the H-range of gases, or the reference fuel G23 if the engine is labelled for the L-range of gases, i.e. the fuel with the highest Wobbe Index for the relevant range, or (3)


5.2.3.3.4.

In the case of an engine labelled for one specific fuel composition:
The fuel used shall be the fuel for which the engine is labelled.

5.2.3.3.5.

The fuel used shall be specified in the test report.

5.2.3.4.

For compression-ignition engines:
The fuel used shall be the reference fuel specified in Annex 7.
5.2.4.   Measurements shall be carried out according to the provisions of Annex 5 to this Regulation.
5.2.5.   The test report shall contain the results and all the calculations required to determine the net power, as listed in the appendix to Annex 4 to this Regulation together with the characteristics of the engine, as listed in Annex 1 to this Regulation.
5.3.   Interpretation of Results
5.3.1.   Net Power
The net power declared by the manufacturer for the type of engine (or parent engine) shall be accepted if it does not differ by more than ± 2 per cent for rated net power and more than ± 4 per cent at the other measurement points on the curve with a tolerance of ± 1,5 per cent for engine speed, from the values measured by the technical service on the engine submitted for testing.
5.3.2.   Rated speed
The rated speed declared by the manufacturer shall not deviate by more than 100 min–1 from the declared value.
5.3.3.   Fuel consumption
The specific fuel consumption curve declared by the manufacturer for the type of engine (or parent engine) shall be accepted if it does not differ by more than ± 8 per cent at all measurement points from the values measured for the same points by the technical service on the engine submitted for testing.
5.3.4.   Engine family
In case of compliance of the parent engine to the conditions in paragraphs 5.3.1 and 5.3.2, the acceptance is automatically extended to all the declared curves of the family members.
6.   CONFORMITY OF PRODUCTION
The conformity of production procedures shall comply with those set out in the Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:

6.1.

Engines approved under this Regulation shall be so manufactured as to conform to the type approved.

6.2.

The minimum requirements for conformity of production control procedures set forth in Annex 6 to this Regulation shall be complied with.
7.   PENALTIES FOR NON-CONFORMITY OF PRODUCTION

7.1.

The approval granted in respect of an engine type or an engine family pursuant to this Regulation may be withdrawn if the requirements set forth in paragraph 6.1. above are not met or if an engine or an engine family bearing the approval mark does not conform to the type approved.

7.2.

If a Contracting Party to the 1958 Agreement applying this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties applying this Regulation, by means of a communication form conforming to the model in Annex 2 to this Regulation.
8.   MODIFICATION AND EXTENSION OF APPROVAL OF AN ENGINE TYPE OR ENGINE FAMILY

8.1.

Every modification of an engine type or an engine family with regard to the characteristics in Annex 1, shall be notified to the administrative department which approved the engine type or engine family. The department may then either:
8.1.1.

Consider that the modifications made are unlikely to have any appreciable adverse effect and that in any case the engine still complies with the requirements; or

8.1.2.

Require a further test report from the technical service responsible for conducting the tests.

8.2.

Confirmation or refusal of approval, specifying the alterations shall be communicated by the procedure specified in paragraph 4.3 above to the Parties to the Agreement applying this Regulation.

8.3.

The competent authority issuing the extension of approval shall assign a series number for such an extension and inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.
9.   PRODUCTION DEFINITELY DISCONTINUED
If the holder of an approval completely ceases to manufacture an engine type or an engine family approved in accordance with this Regulation, he shall so inform the authority which granted the approval. Upon receiving the relevant communication that authority shall inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 2 to this Regulation.
10.   NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
The Parties to the Agreement which apply this Regulation shall communicate to the United Nations Secretariat the names and addresses of the technical services responsible for conducting approval tests, and/or the administrative departments which grant approval, and to which forms certifying approval or extension or refusal of approval, issued in other countries, are to be sent.

(1)  As described in Annex 7 to the Consolidated Resolution on the Construction of Vehicles (R.E.3) (TRANS/WP.29/78/Rev.1/Amend. 2).

(2)  1 for Germany, 2 for France, 3 for Italy, 4 for the Netherlands, 5 for Sweden, 6 for Belgium, 7 for Hungary, 8 for the Czech Republic, 9 for Spain, 10 for Serbia and Montenegro, 11 for the United Kingdom, 12 for Austria, 13 for Luxembourg, 14 for Switzerland, 15 (vacant), 16 for Norway, 17 for Finland, 18 for Denmark, 19 for Romania, 20 for Poland, 21 for Portugal, 22 for the Russian Federation, 23 for Greece, 24 for Ireland, 25 for Croatia, 26 for Slovenia, 27 for Slovakia, 28 for Belarus, 29 for Estonia, 30 (vacant), 31 for Bosnia and Herzegovina, 32 for Latvia, 33 (vacant), 34 for Bulgaria, 35 (vacant), 36 for Lithuania, 37 for Turkey, 38 (vacant), 39 for Azerbaijan, 40 for The former Yugoslav Republic of Macedonia, 41 (vacant), 42 for the European Community (Approvals are granted by its Member States using their respective ECE symbol), 43 for Japan, 44 (vacant), 45 for Australia, 46 for Ukraine, 47 for South Africa, 48 for New Zealand, 49 for Cyprus, 50 for Malta and 51 for the Republic of Korea. Subsequent numbers shall be assigned to other countries in the chronological order in which they ratify or accede to the Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions, and the numbers thus assigned shall be communicated by the Secretary-General of the United Nations to the Contracting Parties to the Agreement.

(3)  ‘Wobbe Index (lower Wl; or upper Wu)’ means the ratio of the corresponding calorific value of a gas per unit volume and the square root of its relative density under the same reference conditions:

ANNEX 1

Essential characteristics of the internal combustion engine and general information concerning the conduct of tests

Parent engine/engine type (1): …
1.   General

1.1.
Make (name of undertaking): …
1.2.
Type and commercial description of the parent — and (if applicable) of the family engine(s) (1): …
1.3.
Manufacturer’s type coding as marked on the engine(s) (1): …
1.4.
Specification of machinery to be propelled by the engine (2): …
1.5.
Name and address of manufacturer: …
1.6.
Name and address of manufacturer’s authorized representative (if any): …
1.7.
Location, coding and method of affixing of the engine identification: …
1.8.
Location and method of affixing of the approval mark: …
1.9.
Address(es) of assembly plant(s): …
2.   Attachments

2.1.
Essential characteristics of the parent engine(s) (see Appendix 1) …
2.2.
Essential characteristics of the engine family (see Appendix 2) …
2.3.
Essential characteristics of engine types within the family (see Appendix 3) …
3.   Characteristics of engine-related parts of the mobile machinery (if applicable) …
4.   Photographs of the parent engine …
5.   List of further attachments:

5.1.
Appendix 1/Appendix 2/Appendix 3 (1)

5.2.
Declared power, torque and specific fuel consumption curves for engine/parent engine and engines within the family (1)

5.3.
Any further attachments, if any: …
(1)  Strike out what does not apply.

(2)  List the types and models.

APPENDIX 1

ESSENTIAL CHARACTERISTICS OF THE ENGINE/PARENT ENGINE
 (1)

1.   DESCRIPTION OF ENGINE
1.1.   Manufacturer: …
1.2.   Manufacturer’s engine code: …
1.3.   Working principle: positive-ignition/compression-ignition, four-stroke/two-stroke (1)

1.4.   Bore (2): …mm
1.5.   Stroke (2): … mm
1.6.   Number, layout and firing order of cylinders: …
1.7.   Engine capacity (3): …cm3

1.8.   Volumetric compression ratio (4): …
1.9.   Combustion system description: …
1.10.   Drawing(s) of combustion chamber and piston crown: …
1.11.   Minimum cross-sectional area of inlet and outlet ports: …
1.12.   Cooling system: liquid/air (1)

1.12.1.   Liquid
1.12.1.1.   Nature of liquid: …
1.12.1.2.   Circulating pump(s): yes/no (1)

1.12.1.3.   Characteristics or make(s) and type(s) (if applicable): …
1.12.1.4.   Drive ratio(s) (if applicable): …
1.12.2.   Air
1.12.2.1.   Blower: yes/no (1)

1.12.2.2.   Characteristics or make(s) and type(s) (if applicable): …
1.12.2.3.   Drive ratio(s) (if applicable): …
1.13.   Temperature permitted by the manufacturer
1.13.1.   Liquid cooling: maximum temperature at outlet: … K
1.13.2.   Air cooling: reference point: …
1.13.3.   Maximum temperature at reference point: … K
1.13.4.   Maximum charge air outlet temperature at the inlet inter-cooler (if applicable): …K
1.13.5.   Maximum exhaust temperature at the point in the exhaust pipe(s) adjacent to the outer flange(s) of the exhaust manifold(s): … K
1.13.6.   Lubricant temperature:

 
minimum … K
 
maximum … K
1.14.   Pressure charger: yes/no (5)

1.14.1.   Make: …
1.14.2.   Type: …
1.14.3.   Description of the system (e.g. max. charge pressure, waste-gate, if applicable): …
1.14.4.   Inter-cooler: yes/no (5)

1.15.   Intake system: maximum allowable intake depression at rated engine speed and at 100 % load: … kPa
1.16.   Exhaust system: maximum allowable exhaust back-pressure at rated engine speed and at 100 % load: … kPa
2.   ADDITIONAL ANTI-POLLUTION DEVICES (if any, and if not covered by another heading)
2.1.   Description and/or diagram(s): …
3.   FUEL FEED FOR COMPRESSION-IGNITION ENGINES
3.1.   Feed pump
3.1.1.   Pressure or characteristic diagram (6) … kPa
3.2.   Injection system
3.2.1.   Pump
3.2.1.1.   Make(s): …
3.2.1.2.   Type(s): …
3.2.1.3.   Maximum fuel delivery: … mm3
 (5)
 (6) per stroke or cycle at full injection at pump speed of: … min–1 (rated) and … min–1 (maximum torque) respectively, or characteristic diagram: …
3.2.1.3.1.   Mention the method used: on engine/on pump bench (5)

3.2.1.4.   Injection advance
3.2.1.4.1.   Injection advance curve (6): …
3.2.1.4.2.   Timing (6): …
3.2.2.   Injection piping
3.2.2.1.   Length: … mm
3.2.2.2.   Internal diameter: …mm
3.2.3.   Injector(s)
3.2.3.1.   Make(s): …
3.2.3.2.   Type(s): …
3.2.3.3.   Opening pressure or characteristic diagram (5)
 (6): … kPa
3.2.4.   Governor
3.2.4.1.   Make(s): …
3.2.4.2.   Type(s): …
3.2.4.3.   Speed at which cut-off starts under full load (7): … min–1

3.2.4.4.   Maximum no-load speed (7): … min–1

3.2.4.5.   Idling speed (7): …min–1

3.3.   Cold start system
3.3.1.   Make(s): …
3.3.2.   Type(s): …
3.3.3.   Description: …
3.3.4.   Electronic Engine Management Control Unit
3.3.4.1.   Make(s): …
3.3.4.2.   Type: …
3.3.4.3.   Emission related adjustment possibilities: …
3.3.4.4.   Further documentation: …
4.   FUEL FEED FOR POSITIVE-IGNITION ENGINES
4.1.   Carburettor
4.1.1.   Make(s): …
4.1.2.   Type(s): …
4.2.   Port fuel injection: single-point or multi-point (8)

4.2.1.   Make(s): …
4.2.2.   Type(s): …
4.3.   Direct-injection
4.3.1.   Make(s): …
4.3.2.   Type(s): …
4.4.   Fuel flow [g/h] and air/fuel ratio at rated speed and wide open throttle: …
4.5.   Electronic Engine Management Control Unit: …
4.5.1.   Make(s): …
4.5.2.   Type: …
4.5.3.   Emission related adjustment possibilities: …
4.5.4.   Further documentation: …
5.   VALVE TIMING
5.1.   Maximum lift and angles of opening and closing in relation to dead centres or equivalent data: …
5.2.   Reference and/or setting ranges (9): …
5.3.   Variable valve timing system (if applicable and where: intake and/or exhaust) (9):
5.3.1.   Type: continuous or on/off (9)

5.3.2.   Cam phase shift angle: …
6.   PORTING CONFIGURATION
6.1.   Position, size and number: …
7.   IGNITION SYSTEM
7.1.   Ignition coil
7.1.1.   Make(s): …
7.1.2.   Type(s): …
7.1.3.   Number: …
7.2.   Spark plug(s)
7.2.1.   Make(s): …
7.2.2.   Type(s): …
7.3.   Magneto
7.3.1.   Make(s): …
7.3.2.   Type(s): …
7.4.   Ignition timing
7.4.1.   Static advance with respect to Top Dead Center [crank angle degrees] …
7.4.2.   Advance curve, if applicable …
8.   Engine performance (declared by the manufacturer)

Rated speed (min–1)
 
Maximum power speed (min–1)
 
Maximum torque speed (min–1)
 
Rated net power (kW)
 
Maximum net power (kW)
 
Maximum net torque (Nm)
 
(1)  Strike out what does not apply.

(2)  This value shall be rounded-off to the nearest tenth of a millimetre.

(3)  This value shall be calculated with π = 3,1416 and rounded-off to the nearest cm3.

(4)  Specify the tolerance.

(5)  Strike out what does not apply.

(6)  Specify the tolerance.

(7)  Specify the tolerance.

(8)  Strike out what does not apply.

(9)  Strike out what does not apply.


APPENDIX 2

ESSENTIAL CHARACTERISTICS OF THE ENGINE FAMILY

1.   COMMON PARAMETERS (1)


1.1.
Combustion cycle: …
1.2.
Cooling medium: …
1.3.
Method of air aspiration: …
1.4.
Combustion chamber type/design: …
1.5.
Valve and porting — configuration, size and number: …
1.6.
Fuel system: …
1.7.
Engine management systems
Proof of identity pursuant to drawing number(s): …

1.7.1.
charge cooling system: …
1.7.2.
exhaust gas recirculation (2): …
1.7.3.
water injection/emulsion (2): …
1.7.4.
air injection (2): …
1.8.
Proof of identical (or lowest for the parent engine) ratio: system capacity/fuel delivery per stroke, pursuant to diagram number(s) (3): …
2.   ENGINE FAMILY LISTING

2.1.
Name of engine family: …
2.2.
Specification of engines within this family: …



Specification
Engines of the family
Parent engine (1)

Engine type
 
 
 
 
 
No. of cylinders
 
 
 
 
 
Rated speed (min-1)
 
 
 
 
 
Fuel delivery per stroke (mm3) for compression-ignition engines, fuel flow (g/h) for positive-ignition engines
 
 
 
 
 
Rated net power (kW)
 
 
 
 
 
Maximum net power (kW)
 
 
 
 
 
Maximum power speed (min-1)
 
 
 
 
 
Maximum torque speed (min-1)
 
 
 
 
 
Fuel delivery per stroke (mm3)
 
 
 
 
 
Maximum torque (Nm)
 
 
 
 
 
Low idle speed (min-1)
 
 
 
 
 
Cylinder displacement (in % of the largest one) (see Annex 5, para. 1.3)
 
 
 
 
 
(1)  For full details see Annex 1 — Appendix 1.

(2)  Give all pertinent technical data.

(3)  See Annex 5, paragraph 1.9.


APPENDIX 3

Essential characteristics of engine type within the family
 (1)

1.   DESCRIPTION OF THE ENGINE
1.1.   Manufacturer: …
1.2.   Manufacturer’s engine code: …
1.3.   Cycle: four-stroke/two-stroke (2)

1.4.   Bore (3): …mm
1.5.   Stroke (3): …mm
1.6.   Number, layout and firing order of cylinders: …
1.7.   Engine capacity (4): …cm3

1.8.   Rated speed: …min–1

1.9.   Maximum torque speed: … min–1

1.10.   Volumetric compression ratio (5): …
1.11.   Combustion system description: …
1.12.   Drawing(s) of combustion chamber and piston crown: …
1.13.   Minimum cross-sectional area of inlet and outlet ports: …
1.14.   Cooling system: liquid/air (2)

1.14.1.   Liquid
1.14.1.1.   Nature of liquid: …
1.14.1.2.   Circulating pump(s): yes/no (2)

1.14.1.3.   Characteristics or make(s) and type(s) (if applicable): …
1.14.1.4.   Drive ratio(s) (if applicable): …
1.14.2.   Air
1.14.2.1.   Blower: yes/no (2)

1.14.2.2.   Characteristics or make(s) and type(s) (if applicable): …
1.14.2.3.   Drive ratio(s) (if applicable): …
1.15.   Temperature permitted by the manufacturer
1.15.1.   Liquid cooling: maximum temperature at outlet: … K
1.15.2.   Air cooling:

 
reference point: …
 
maximum temperature at reference point: … K
1.15.3.   Maximum charge air outlet temperature at the inlet intercooler (if applicable): …K
1.15.4.   Maximum exhaust temperature at the point in the exhaust pipe(s) adjacent to the outer flange(s) of the exhaust manifold(s): … K
1.15.5.   Lubricant temperature:

 
minimum … K
 
maximum …K
1.16.   Pressure charger: yes/no (6)

1.16.1.   Make: …
1.16.2.   Type: …
1.16.3.   Description of the system (e.g. max charge pressure, waste-gate, if applicable):
1.16.4.   Inter-cooler: yes/no (6)

1.17.   Intake system: maximum allowable intake depression at rated engine speed and at 100 % load: … kPa
1.18.   Exhaust system: maximum allowable exhaust back-pressure at rated engine speed and at 100 % load: … kPa
2.   ADDITIONAL ANTI-POLLUTION DEVICES (if any, and if not covered by another heading)
Description and/or diagram(s): …
3.   FUEL FEED FOR COMPRESSION-IGNITION ENGINES
3.1.   Feed pump
Pressure (7) or characteristic diagram: … kPa
3.2.   Injection system
3.2.1.   Pump
3.2.1.1.   Make(s): …
3.2.1.2.   Type(s): …
3.2.1.3.   Maximum fuel delivery: … mm3
 (6)
 (7) per stroke or cycle at full injection at pump speed of: … min–1 (rated) and … min–1 (maximum torque) respectively, or characteristic diagram: …
3.2.1.3.1.   Mention the method used: on engine/on pump bench (8)

3.2.1.4.   Injection advance
3.2.1.4.1.   Injection advance curve (7): …
3.2.1.4.2.   Timing (7): …
3.2.2.   Injection piping
3.2.2.1.   Length: … mm
3.2.2.2.   Internal diameter: …mm
3.2.3.   Injector(s)
3.2.3.1.   Make(s): …
3.2.3.2.   Type(s): …
3.2.3.3.   Opening pressure or characteristic diagram (6)
 (7): … kPa
3.2.4.   Governor
3.2.4.1.   Make(s): …
3.2.4.2.   Type(s): …
3.2.4.3.   Speed at which cut-off starts under full load (7): … min–1

3.2.4.4.   Maximum no-load speed (7): … min–1

3.2.4.5.   Idling speed (7): …min–1

3.3.   Cold start system
3.3.1.   Make(s): …
3.3.2.   Type(s): …
3.3.3.   Description: …
3.4.   Electronic Engine Management Control Unit:
3.4.1.   Make(s): …
3.4.2.   Type: …
3.4.3.   Emission related adjustment possibilities: …
3.4.4.   Further documentation: …
4.   FUEL FEED FOR POSITIVE-IGNITION ENGINES
4.1.   Carburettor
4.1.1.   Make(s): …
4.1.2.   Type(s): …
4.2.   Port fuel injection: single-point or multi-point (9)

4.2.1.   Make(s): …
4.2.2.   Type(s): …
4.3.   Direct-injection
4.3.1.   Make(s): …
4.3.2.   Type(s): …
4.4.   Fuel flow [g/h] and air/fuel ratio at rated speed and wide open throttle
4.5.   Electronic engine management control unit
4.5.1.   Make(s): …
4.5.2.   Type: …
4.5.3.   Emission related adjustment possibilities: …
4.5.4.   Further documentation: …
5.   VALVE TIMING
5.1.   Maximum lift and angles of opening and closing in relation to dead centers or equivalent data: …
5.2.   Reference and/or setting range (9): …
5.3.   Variable valve timing system (if applicable and where: intake and/or exhaust) (9):
5.3.1.   Type: continuous or on/off (9)

5.3.2.   Cam phase shift angle: …
6.   PORTING CONFIGURATION
6.1.   Position, size and number: …
7.   IGNITION SYSTEM
7.1.   Ignition coil
7.1.1.   Make(s): …
7.1.2.   Type(s): …
7.1.3.   Number
7.2.   Spark plug(s)
7.2.1.   Make(s): …
7.2.2.   Type(s): …
7.3.   Magneto
7.3.1.   Make(s): …
7.3.2.   Type(s): …
7.4.   Ignition timing
7.4.1.   Static advance with respect to Top Dead Center [crank angle degrees]: …
7.4.2.   Advance curve, if applicable: …

(1)  For full details see Annex 1 — Appendix 1.

(2)  Strike out what does not apply.

(3)  This value shall be rounded-off to the nearest tenth of a millimetre.

(4)  This value shall be calculated with π = 3,1416 and rounded-off to the nearest cm3.

(5)  Specify the tolerance.

(6)  For full details see Annex 1 — Appendix 1.

(7)  Strike out what does not apply.

(8)  This value shall be rounded-off to the nearest tenth of a millimetre.

(9)  Strike out what does not apply.



ANNEX 2

COMMUNICATION

(Maximum format: A4 (210 × 297 mm))






ANNEX 3

ARRANGEMENTS OF APPROVAL MARKS

MODEL A
(see paragraph 4.4 of this Regulation)


MODEL B
(see paragraph 4.5 of this Regulation)



(1)  The second number is given merely as an example.


ANNEX 4

Method for measuring internal combustion engine net power

1.   These provisions apply to the method for determining the power curve at full load of an internal combustion engine operated under intermittent speed as a function of engine speed and the rated speed and rated net power of an internal combustion engine under constant speed.
2.   TEST CONDITIONS
2.1.   The engine shall have been run-in according to the manufacturer’s recommendations.
2.2.   If the power measurement can be carried out only on an engine with the gearbox mounted, the efficiency of the gearbox shall be taken into account.
2.3.   Auxiliaries and equipment
2.3.1.   Auxiliaries and equipment to be fitted
During the test, the auxiliaries necessary for the engine operation in the intended application (as listed in Table 1) shall be installed on the test bench as far as possible in the same position as in the intended application.
2.3.2.   Auxiliaries and equipment to be removed
Certain accessories whose definition is linked with the operation of the machine and which may be mounted on the engine shall be removed for the test. The following non-exhaustive list is given as a sample:

(i)
air compressor for brakes
(ii)
power steering compressor
(iii)
suspension compressor
(iv)
air-conditioning system
Where accessories cannot be removed, the power they absorb in the unloaded condition may be determined and added to the measured engine power (see note h of Table 1). If this value is greater than 3 per cent of the maximum power at the test speed it may verified by the test authority.

Table 1


Equipment and auxiliaries to be installed for the test to determine engine power


Number
Equipment and auxiliaries
Fitted for emission test
1
Inlet system
 
Inlet manifold
Yes, standard production equipment.
Crankcase emission control system
Yes, standard production equipment.
Control devices for dual induction inlet manifold system
Yes, standard production equipment.
Air flow meter
Yes, standard production equipment.
Air inlet duct work
Yes. (1)

Air filter
Yes. (1)

Inlet silencer
Yes. (1)

Speed-limiting device
Yes. (1)

2
Induction-heating device of inlet manifold
Yes, standard production equipment. If possible to be set in the most favourable condition.
3
Exhaust system
 
Exhaust purifier
Yes, standard production equipment.
Exhaust manifold
Yes, standard production equipment.
Connecting pipes
Yes. (2)

Silencer
Yes. (2)

Tail pipe
Yes. (2)

Exhaust brake
No. (3)

Pressure charging device
Yes, standard production equipment.
4
Fuel supply pump
Yes, standard production equipment. (4)

5
Carburation equipment
 
Carburettor
Yes, standard production equipment.
Electronic control system, air flow meter, etc.
Yes, standard production equipment.
Equipment for gas engines
 
Pressure reducer
Yes, standard production equipment.
Evaporator
Yes, standard production equipment.
Mixer
Yes, standard production equipment.
6
Fuel injection equipment (petrol and diesel)
 
Pre-filter
Yes, standard production or test bed equipment.
Filter
Yes, standard production or test bed equipment.
Pump
Yes, standard production equipment.
High-pressure pipe
Yes, standard production equipment.
Injector
Yes, standard production equipment.
Air inlet valve
Yes, standard production equipment. (5)

Electronic control system, air flow meter, etc.
Yes, standard production equipment.
Governor/control system
Yes, standard production equipment.
Automatic full-load stop for the control rack depending on atmospheric conditions
Yes, standard production equipment.
7
Liquid-cooling equipment
 
Radiator
No.
Fan
No.
Fan cowl
No.
Water pump
Yes, standard production equipment. (6)

Thermostat
Yes, standard production equipment. (7)

8
Air cooling
 
Cowl
No. (8)

Fan or Blower
No. (8)

Temperature-regulating device
No.
9
Electrical equipment
 
Generator
Yes, standard production equipment. (9)

Spark distribution system
Yes, standard production equipment.
Coil or coils
Yes, standard production equipment.
Wiring
Yes, standard production equipment.
Spark plugs
Yes, standard production equipment.
Electronic control system including knock sensor/spark retard system
Yes, standard production equipment.
10
Pressure charging equipment
 
Compressor driven either directly by the engine and/or by the exhaust gases
Yes, standard production equipment.
Charge air cooler
Yes, standard production or test bed equipment. (8), (10)

Coolant pump or fan (engine-driven)
No. (8)

Coolant flow control device
Yes, standard production equipment.
11
Auxiliary test-bed fan
Yes, if necessary.
12
Anti-pollution device
Yes, standard production equipment. (11)

13
Starting equipment
Test bed equipment. (12)

14
Lubricating oil pump
Yes, standard production equipment.
2.4.   Setting conditions
The setting conditions for the test to determine the net power are indicated in Table 2.

Table 2


Setting conditions


1.

Setting of carburettor(s), evaporator/pressure regulator

In accordance with the manufacturer’s production specifications, and used without further alteration for the particular application.

2.

Setting of injection pump delivery system

3.

Ignition or injection timing (timing curve)

4.

Governor setting

5.

Emission control devices

6.

Boost Control
3.   DATA TO BE RECORDED

3.1.
Data to be recorded are those indicated in paragraph 4 of the appendix to this annex. Performance data shall be obtained under stabilised operating conditions with an adequate fresh air supply to the engine. Combustion chambers may contain deposits, but in limited quantity. Test conditions, such as inlet air temperature, shall be selected as near to reference conditions (see paragraph 5.2 of this annex) as possible in order to minimise the magnitude of the correction factor.
3.2.
The temperature of the inlet air to the engine shall be measured within the inlet ductwork. The inlet depression measurement shall be made at the same point. The thermometer or thermocouple shall be shielded from fuel spray-back and radiant heat and located directly in the air stream. A sufficient number of locations shall be used to give a representative average of the inlet temperature.
3.3.
The inlet depression shall be measured downstream of the entry ducts, air filter, inlet silencer or speed-limiting device (if fitted).
3.4.
The absolute pressure at the entry to the engine downstream of the compressor and heat exchanger, if fitted, shall be measured in the inlet manifold and at any other point where pressure has to be measured to calculate correction factors.
3.5.
The exhaust back pressure shall be measured at a point at least three pipe diameters downstream from the outlet flange(s) of the exhaust manifold(s) and downstream at the turbocharger(s), if fitted. The location shall be specified.
3.6.
No data shall be taken until torque, speed and temperatures have been maintained substantially constant for at least one minute.
3.7.
The engine speed during a run or reading shall not deviate from the selected speed by more than ± 1 per cent or ± 10 min, whichever is greater.
3.8.
Observed brake load, fuel consumption and inlet air temperature data shall be taken simultaneously and shall be the average of two stabilised consecutive values which do not vary more than 2 per cent for the brake load.
3.9.
The temperature of the coolant at the outlet from the engine shall be kept at the value specified by the manufacturer.
If no temperature is specified by the manufacturer, the temperature shall be 353 K ± 5 K. For air-cooled engines, the temperature at a point indicated by the manufacturer shall be kept within + 0/– 20 K of the maximum value specified by the manufacturer in the reference conditions.
3.10.
For C.I. engines, the fuel temperature shall be measured at the inlet of the fuel injection pump and maintained within 306-316 K (33-43 °C). For positive-ignition engines the fuel temperature shall be measured as near as possible to the inlet of the carburettor or assembly of fuel injectors and maintained within 293-303 K (20-30 °C).
3.11.
The temperature of the lubricating oil measured in the oil pump or at the outlet from the coil cooler, if fitted, shall be maintained within the limits established by the engine manufacturer.
3.12.
An auxiliary regulating system may be used if necessary to maintain the temperatures within the limits specified in paragraphs 3.9, 3.10 and 3.11 above of this annex.
4.   ACCURACY OF MEASUREMENTS

4.1.
Torque: ± 1 per cent of measured torque. The torque measuring system shall be calibrated to take friction losses into account. The accuracy in the lower half of the measuring range of the dynamometer bench may be ± 2 per cent of measured torque.
4.2.
Engine speed: 0,5 per cent of measured speed.
4.3.
Fuel consumption: ± 1 per cent of measured consumption.
4.4.
Fuel temperature: ± 2 K.
4.5.
Engine inlet air temperature: ± 2 K.
4.6.
Barometric pressure: ± 100 Pa.
4.7.
Depression in inlet system: ± 50 Pa.
4.8.
Back-pressure in exhaust system: ± 200 Pa.
5.   POWER CORRECTION FACTORS
5.1.   Definition
The power correction factor is the coefficient to determine the engine power under the reference atmospheric conditions specified in 5.2 below.
Po = α P
where:

Po

is the corrected power (i.e. power under reference atmospheric conditions)
α
is the correction factor (αa or αd)
P
is the measured power (test power)
5.2.   Reference atmospheric conditions
5.2.1.   Temperature (To): 298 K (25 °C)
5.2.2.   Dry pressure (Pso): 99 kPa
The dry pressure is based on a total pressure of 100 kPa and a water vapour pressure of 1 kPa.
5.3.   Test atmospheric conditions
The atmospheric conditions during the test shall be the following:
5.3.1.   Temperature (T)

For positive-ignition engines
:
288 K ≤ T ≤ 308 K
For compression-ignition engines
:
283 K ≤ T ≤ 313 K
5.3.2.   Pressure (ps)
90 kPa < ps

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