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Title:
DME FUEL FEED DEVICE OF DIESEL ENGINE
Document Type and Number:
WIPO Patent Application WO/2003/091565
Kind Code:
A1
Abstract:
A DME fuel feed device of a diesel engine capable of feeding DME fuel from a fuel tank to the oil sump of an injection pump without using a drive means such as feed pump, wherein when an electric compressor (23) is turned on and a gaseous phase part (4b) in the fuel tank (4) is pressurized, the DME fuel in a liquid phase part (4a) is sent to a feed pipe (5), and then filled into the oil sump (11), an injection pipe (3), a nozzle return pipe (7), and a refrigerant feed pipe (51), the DME fuel fed as refrigerant is vaporized by a fuel carburetor (15) and sent to a fuel cooler (6) to cool the DME fuel filled in the oil sump (11) by the heat of the vaporization thereof, and the DME fuel in the fuel tank (4) is fed to the injection pump (1) due to a relative pressure difference between the cooled DME fuel in the oil sump (11) and the DME fuel in the fuel tank (4) caused by a temperature difference therebetween.

Inventors:
NOZAKI SHINYA (JP)
NODA TOSHIFUMI (JP)
HAYASAKA YUKIHIRO (JP)
USHIYAMA DAIJO (JP)
Application Number:
PCT/JP2003/005452
Publication Date:
November 06, 2003
Filing Date:
April 28, 2003
Export Citation:
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Assignee:
BOSCH AUTOMOTIVE SYSTEMS CORP (JP)
NOZAKI SHINYA (JP)
NODA TOSHIFUMI (JP)
HAYASAKA YUKIHIRO (JP)
USHIYAMA DAIJO (JP)
International Classes:
F02M37/12; F02M53/00; F02M55/00; (IPC1-7): F02M37/00; F02M21/08; F02M53/00
Foreign References:
JP2002061542A2002-02-28
US5967126A1999-10-19
JPH11107871A1999-04-20
JPH10306760A1998-11-17
Attorney, Agent or Firm:
Ishii, Hiroki (2-5-22 Kyobash, Chuo-ku Tokyo, JP)
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