ANNEX IU.K. ADMINISTRATIVE PROVISIONS FOR EC TYPE-APPROVAL

1.REQUIREMENTS ON FUEL RANGEU.K.

1.1. Requirements on universal fuel range type-approval U.K.

A universal fuel range approval shall be granted subject to the requirements specified in points 1.1.1 to 1.1.6.1.

[F11.1.1. The parent engine shall meet the requirements of this Regulation on the appropriate reference fuels specified in Annex IX. Specific requirements shall apply to engines fuelled with natural gas/biomethane, including dual-fuel engines, as laid down in point 1.1.3.] U.K.

Textual Amendments

[F21.1.2. If the manufacturer permits the engine family to run on market fuels that do not comply neither with Directive 98/70/EC of the European Parliament and of the Council (1) nor with CEN standard EN 228:2012 (in the case of unleaded petrol) or CEN standard EN 590:2013 (in the case of diesel), such as running on B100 (EN 14214), the manufacturer shall, in addition to the requirements in point 1.1.1, comply with the following requirements: U.K.
(a)

declare the fuels the engine family is capable of running on in point 3.2.2.2.1 of the Information Document as set out in Part 1 of Appendix 4., either by reference to an official standard or to a production specification of a brand specific market fuel not meeting any official standard such as those mentioned in point 1.1.2. The manufacturer shall also declare that the functionality of the OBD system is not affected by the use of the declared fuel;

(b)

demonstrate that the parent engine meets the requirements specified in Annex III and in Appendix 1 of Annex VI to this Regulation on the fuels declared; the approval authority may request that the demonstration requirements be further extended to those laid down in Annex VII and Annex X;

(c)

be liable to meet the requirements of in-service conformity specified in Annex II on the fuels declared including any blend between the declared fuels and the market fuels included in Directive 98/70/EC and the relevant CEN standards.

At the request of the manufacturer, the requirements set out in this point shall be applied to fuels used for military purposes.

For the purposes of point (a) of the first subparagraph where the emission tests are performed for demonstrating compliance with the requirements of this Regulation, a fuel analysis report of the test fuel shall be attached to the test report and shall comprise at least the parameters specified in the official specification of the fuel manufacturer.]

Textual Amendments

[F11.1.3. In the case of natural gas/biomethane fuelled engines, including dual-fuel engines, the manufacturer shall demonstrate the parent engines capability to adapt to any natural gas/biomethane composition that may occur across the market. This demonstration shall be carried out in accordance with this Section and, in the case of dual-fuel engines, also in accordance with the additional provisions regarding the fuel adaptation procedure set out in paragraph 6.4 of Annex 15 to UNECE Regulation No 49. U.K.

In the case of compressed natural gas/biomethane (CNG) there are generally two types of fuel, high calorific fuel (H-gas) and low calorific fuel (L-gas), but with a significant spread within both ranges; they differ significantly in their energy content expressed by the Wobbe Index and in their λ-shift factor (S λ ). Natural gases with a λ-shift factor between 0,89 and 1,08 (0,89 ≤ S λ ≤ 1,08) are considered to belong to H-range, while natural gases with a λ-shift factor between 1,08 and 1,19 (1,08 ≤ S λ ≤ 1,19) are considered to belong to L-range. The composition of the reference fuels reflects the extreme variations of S λ .

The parent engine shall meet the requirements of this Regulation on the reference fuels G R (fuel 1) and G 25 (fuel 2), as specified in Annex IX, without any manual readjustment to the engine fuelling system between the two tests (self-adaptation is required). One adaptation run over one WHTC hot cycle without measurement is permitted after the change of the fuel. After the adaptation run, the engine shall be cooled down in accordance with paragraph 7.6.1 of Annex 4 to UNECE Regulation No 49.

In the case of liquefied natural gas/biomethane (LNG) the parent engine shall meet the requirements of this Regulation on the reference fuels G R (fuel 1) and G 20 (fuel 2), as specified in Annex IX, without any manual readjustment to the engine fuelling system between the two tests (self-adaptation is required). One adaptation run over one WHTC hot cycle without measurement is permitted after the change of the fuel. After the adaptation run, the engine shall be cooled down in accordance with paragraph 7.6.1 of Annex 4 to UN/ECE Regulation No 49.]

1.1.3.1.At the manufacturer's request the engine may be tested on a third fuel (fuel 3) if the λ-shift factor (Sλ) lies between 0,89 (that is the lower range of GR) and 1,19 (that is the upper range of G25), for example when fuel 3 is a market fuel. The results of this test may be used as a basis for the evaluation of the conformity of the production.U.K.
[F11.1.4. In the case of an engine fuelled with CNG which is self-adaptive for the range of H-gases on the one hand and the range of L-gases on the other hand, and which switches between the H-range and the L-range by means of a switch, the parent engine shall be tested on the relevant reference fuel as specified in Annex IX for each range, at each position of the switch. The fuels are G R (fuel 1) and G 23 (fuel 3) for the H-range of gases and G 25 (fuel 2) and G 23 (fuel 3) for the L-range of gases. The parent engine shall meet the requirements of this Regulation at both positions of the switch without any readjustment to the fuelling between the two tests at each position of the switch. One adaptation run over one WHTC hot cycle without measurement is permitted after the change of the fuel. After the adaptation run the engine shall be cooled down in accordance with paragraph 7.6.1 of Annex 4 to UNECE Regulation No 49.] U.K.
1.1.4.1.At the manufacturer's request the engine may be tested on a third fuel instead of G23 (fuel 3) if the λ-shift factor (Sλ) lies between 0,89 (that is the lower range of GR) and 1,19 (that is the upper range of G25), for example when fuel 3 is a market fuel. The results of this test may be used as a basis for the evaluation of the conformity of the production.U.K.
[F1 [F21.1.5. In the case of natural gas/biomethane engines, the ratio of the emission results ‘ r ’ shall be determined for each pollutant as follows: U.K.

or

and

]

1.1.6. In the case of LPG the manufacturer shall demonstrate the parent engines capability to adapt to any fuel composition that may occur across the market. U.K.

In the case of LPG there are variations in C 3 /C 4 composition. These variations are reflected in the reference fuels. The parent engine shall meet the emission requirements on the reference fuels A and B as specified in Annex IX without any readjustment to the fuelling between the two tests. One adaptation run over one WHTC hot cycle without measurement is permitted after the change of the fuel. After the adaptation run the engine shall be cooled down in accordance with paragraph 7.6.1 of Annex 4 to UNECE Regulation No 49.]

1.1.6.1.The ratio of emission results ‘r’ shall be determined for each pollutant as follows:U.K.

[F11.2. Requirements on restricted fuel range type-approval in case of engines fuelled with natural gas/biomethane or LPG, including dual-fuel engines U.K.

A restricted fuel range type-approval shall be granted subject to the requirements specified in points 1.2.1 to 1.2.2.2.

1.2.1. Exhaust emissions type-approval of an engine running on CNG and laid out for operation on either the range of H-gases or on the range of L-gases. U.K.

The parent engine shall be tested on the relevant reference fuel, as specified in Annex IX, for the relevant range. The fuels are G R (fuel 1) and G 23 (fuel 3) for the H-range of gases and G 25 (fuel 2) and G 23 (fuel 3) for the L-range of gases. The parent engine shall meet the requirements of this Regulation without any readjustment to the fuelling between the two tests. One adaptation run over one WHTC hot cycle without measurement is permitted after the change of the fuel. After the adaptation run the engine shall be cooled down in accordance with paragraph 7.6.1 of Annex 4 to UNECE Regulation No 49.]

1.2.1.1.At the manufacturer's request the engine may be tested on a third fuel instead of G23 (fuel 3) if the λ-shift factor (Sλ) lies between 0,89 (that is the lower range of GR) and 1,19 (that is the upper range of G25), for example when fuel 3 is a market fuel. The results of this test may be used as a basis for the evaluation of the conformity of the production.U.K.
1.2.1.2.The ratio of emission results ‘r’ shall be determined for each pollutant as follows:U.K.

, or

, and

1.2.1.3.On delivery to the customer the engine shall bear a label as specified in Section 3.3 stating for which range of gases the engine is approved.U.K.
[F11.2.2. Exhaust emissions type-approval of an engine running on natural gas/biomethane or LPG and designed for operation on one specific fuel composition. U.K.

The parent engine shall meet the emission requirements on the reference fuels G R and G 25 in the case of CNG, on the reference fuels G R and G 20 in the case of LNG, or on the reference fuels A and B in the case of LPG, as specified in Annex IX. Fine-tuning of the fuelling system is allowed between the tests. This fine-tuning will consist of a recalibration of the fuelling database, without any alteration to either the basic control strategy or the basic structure of the database. If necessary, the exchange of parts that are directly related to the amount of fuel flow such as injector nozzles is allowed.

1.2.2.1. In the case of CNG, at the manufacturer’s request the engine may be tested on the reference fuels G R and G 23 , or on the reference fuels G 25 and G 23 , in which case the type-approval is only valid for the H-range or the L-range of gases respectively. U.K.
1.2.2.2. On delivery to the customer the engine shall bear a label as specified in point 3.3 stating for which fuel-range composition the engine has been calibrated.] U.K.

[F31.3. Requirements on fuel-specific type-approval U.K.

1.3.1. A fuel specific type-approval may be granted for LNG fuelled engines, including dual-fuel engines, labelled with an approval mark containing the letters ‘LNG 20 ’ in accordance with point 3.1 of this Annex. U.K.
1.3.2. The manufacturer can only apply for a fuel specific type-approval in the case of the engine being calibrated for a specific LNG gas composition resulting in a λ-shift factor not differing by more than 3 per cent from the λ-shift factor of the G 20 fuel specified in Annex IX, and the ethane content of which does not exceed 1.5 per cent. U.K.
1.3.3. In the case of a dual-fuel engine family where the engines are calibrated for a specific LNG gas composition resulting in a λ-shift factor not differing by more than 3 per cent from the λ-shift factor of the G 20 fuel specified in Annex IX, and the ethane content of which does not exceed 1.5 per cent, the parent engine shall only be tested on the G 20 reference gas fuel, as specified in Annex IX.] U.K.

Textual Amendments

(1)

[F2Directive 98/70/EC of the European Parliament and of the Council of 13 October 1998 relating to the quality of petrol and diesel fuels and amending Council Directive 93/12/EEC ( OJ L 350, 28.12.1998, p. 58 ).]

Textual Amendments