ACCUMULATOR FUEL INJECTION DEVICE

Title:

ACCUMULATOR FUEL INJECTION DEVICE

Document Type and Number:

WIPO Patent Application WO/2008/020530

Kind Code:

A1

Abstract:

To provide an accumulator fuel injection device, in which the operation of a pressure control valve for controlling a fuel pressure in an accumulation chamber can be stabilized. The accumulator fuel injection device includes a pressure control valve (6) for controlling a fuel pressure in an accumulation chamber (2) by moving an armature (13) in an armature chamber (22) and controlling the relief amount of a fuel from the accumulation chamber (2) by means of a valve element (11) formed integrally with the armature (13) in a control chamber (21) into which the fuel in the accumulation chamber (2) is introduced. A valve seat (10) disposed between the control chamber (21) and the accumulation chamber (2) of the pressure control valve (6)is provided with a means for damping the pressure transmitted from the accumulation chamber (2) to a valve seat (10).

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Inventors:

KOBAYASHI NOBU (JP)
IMANAKA HAJIMU (JP)
KAWARABAYASHI MITSUYOSHI (JP)

Application Number:

PCT/JP2007/064453

Publication Date:

February 21, 2008

Filing Date:

July 23, 2007

Export Citation:

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Assignee:

YANMAR CO LTD (JP)
KOBAYASHI NOBU (JP)
IMANAKA HAJIMU (JP)
KAWARABAYASHI MITSUYOSHI (JP)

International Classes:

F02M55/02; F02M47/02

Foreign References:

JP2000291474A	2000-10-17
JPH08261102A	1996-10-08
JPH0872687A	1996-03-19
JP2004515727A	2004-05-27
JPH03102668U	1991-10-25

Other References: