LIQUEFIED GAS-DELIVERING DEVICE FOR DIESEL ENGINE

Title:

LIQUEFIED GAS-DELIVERING DEVICE FOR DIESEL ENGINE

Document Type and Number:

WIPO Patent Application WO/2004/059158

Kind Code:

A1

Abstract:

An aspirator (7) is provided at a lower position than an oil sump chamber (11) and an over flow fuel pipe (81), and therefore DME fuel remaining in the oil sump chamber (11) and the over flow fuel pipe (81) can be efficiently recovered to a fuel tank (4) by force that is the sum of aspiration force occurring at an aspiration opening (7c) of the aspirator (7) and gravity. A solenoid valve (74) for opening and closing a gas-phase pressure send-out pipe is provided at a higher position that the oil sump chamber (11), and therefore DME fuel in a liquid state remaining in the oil sump chamber (11) and the over flow fuel pipe (81) is forcibly sent by pressure to the aspiration opening (7c) of the aspirator (7) by force that is the sum of a pressure of a gas phase (4b) in the fuel tank (4) and gravity. This way, the time to recover DME fuel in an injection system to the fuel tank after the stop of a diesel engine is shortened.

Inventors:

NOZAKI SHINYA (JP)
NODA TOSHIFUMI (JP)
USHIYAMA DAIJO (JP)
ISHIKAWA TERUAKI (JP)
HAYASAKA YUKIHIRO (JP)

Application Number:

PCT/JP2003/016753

Publication Date:

July 15, 2004

Filing Date:

December 25, 2003

Export Citation:

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Assignee:

BOSCH AUTOMOTIVE SYSTEMS CORP (JP)
NOZAKI SHINYA (JP)
NODA TOSHIFUMI (JP)
USHIYAMA DAIJO (JP)
ISHIKAWA TERUAKI (JP)
HAYASAKA YUKIHIRO (JP)

International Classes:

F02D19/08; F02M21/06; F02M21/08; F02M55/00; F02B3/06; F02M53/00; F02M63/00; (IPC1-7): F02M37/00; F02M47/02; F02M21/08

Foreign References:

US5967126A	1999-10-19
JPH11107871A	1999-04-20
JPH10306760A	1998-11-17
JPS5731562U	1982-02-19
JPH0454961U	1992-05-12

Other References: