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Title:
FUEL INJECTION DEVICE AND DIFFERENTIAL PRESSURE REGULATING VALVE USED FOR SAME
Document Type and Number:
Japanese Patent JP2007321715
Kind Code:
A
Abstract:

To simplify a layout of pipes in a fuel injection device which supplies fuel to a low pressure space having a drive transmission part arranged therein, and discharges air in a liquid chamber of a drive transmission part.

The device is provided with: a filling path 29 introducing high pressure fuel in a downstream side of a high pressure pump 22 to an upstream side part of a back pressure valve 27 in a return path 26; and a differential pressure regulating valve 60 opening and closing the filling path 29. The filling path 29 is closed by the differential pressure regulating valve 60 when pressure in a high pressure pump 2 side gets higher than pressure in the return path 26 side by predetermined pressure or higher.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
KONDO ATSUSHI
Application Number:
JP2006155731A
Publication Date:
December 13, 2007
Filing Date:
June 05, 2006
Export Citation:
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Assignee:
DENSO CORP
International Classes:
F02M47/00; F02M37/00; F02M37/20; F02M55/00; F16K17/04
Domestic Patent References:
JP2001041125A2001-02-13
JPH08218967A1996-08-27
JP2006511760A2006-04-06
JP2005507053A2005-03-10
JP2004342482A2004-12-02
JP2002031015A2002-01-31
JP2006016989A2006-01-19
Attorney, Agent or Firm:
伊藤 洋二
三浦 高広
水野 史博