DEVICE FOR INJECTING NATURAL GAS INTO A CYLINDER COMBUSTION CHAMBER

WIPO Patent Application WO2001055568

A3

The invention concerns a device for injecting natural gas into a combustion chamber (12) of a motor vehicle internal combustion engine, comprising an intermediate chamber (26) for storing natural gas and which equipped with a natural gas injector (30) supplied with natural gas by an upstream supply conduit (32), and wherein the intermediate chamber (26) communicates with the engine combustion chamber (12) via an injection valve (28) controlling natural gas injection into the combustion chamber (12). The invention is characterised in that it comprises a complementary chamber (38) containing natural gas which is connected to the intermediate chamber (26) by a connecting channel (40) provided with a valve (42) which is opened to increase the amount of natural gas stored in the intermediate chamber (26) before it is injected into the combustion chamber (12).

GUEZET JACKY (FR)
MONNIER GAETAN (FR)
VAN FRANCK JEAN (FR)

PCT/FR2001/000252

December 20, 2001

January 26, 2001

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RENAULT (FR)
GUEZET JACKY (FR)
MONNIER GAETAN (FR)
FRANCK JEAN VAN (FR)

F02B43/00; F02M21/02; (IPC1-7): F02B19/02; F02B43/00

EP1054142A2	2000-11-22
US4248192A	1981-02-03
US4210105A	1980-07-01

PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29)
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08 29 September 1995 (1995-09-29)
PATENT ABSTRACTS OF JAPAN vol. 018, no. 249 (M - 1604) 12 May 1994 (1994-05-12)
PATENT ABSTRACTS OF JAPAN vol. 018, no. 491 (M - 1672) 13 September 1994 (1994-09-13)

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