FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2011/114525

A1

In order to quickly supply vaporized fuel into cylinders even during a cold start, and in order to increase startability, the disclosed engine (10) is provided with a regular fuel tank (32), a vaporized fuel tank (34), an in-tank injection valve (36), a vaporized fuel supply valve (38), and the like. While the engine is running, in the state where the vaporized fuel supply valve (38) is closed, fuel is injected from the in-tank injection valve (36) into the vaporized fuel tank (34), forming vaporized fuel, which is this fuel that has vaporized. The vaporized fuel stored in the vaporized fuel tank (34) retains the state of a vapor phase by means of natural depressurization even after the engine is stopped. When starting the engine, the vaporized fuel within the vaporized fuel tank (34) is supplied to a surge tank (20) by means of opening the vaporized fuel supply valve (38). As a result, compared with generating vaporized fuel during starting, vaporized fuel can be supplied into the cylinders quickly, and startability can be increased.

TSUNOOKA TAKASHI (JP)
IRISAWA YASUYUKI (JP)
MITANI SHINICHI (JP)
YOSHIZAKI SATOSHI (JP)
SATOU AKIRA (JP)
URANO SHIGEYUKI (JP)

PCT/JP2010/054871

September 22, 2011

March 19, 2010

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TOYOTA MOTOR CO LTD (JP)
TSUNOOKA TAKASHI (JP)
IRISAWA YASUYUKI (JP)
MITANI SHINICHI (JP)
YOSHIZAKI SATOSHI (JP)
SATOU AKIRA (JP)
URANO SHIGEYUKI (JP)

F02M37/00

JP2007224878A	2007-09-06
JPH05178102A	1993-07-20
JPH0719124A	1995-01-20
JPS5892454U	1983-06-22
JP2006214415A	2006-08-17
JP2003239788A	2003-08-27

TAKAHASHI, Hideki et al. (JP)
Hideki Takahashi (JP)

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