Title:
HIGH PRESSURE FUEL SUPPLY PUMP OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2014148981
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve a discharge capacity control mechanism of a high pressure fuel supply pump.SOLUTION: A high pressure fuel supply pump includes: a cylinder; a plunger for changing a capacity in the cylinder by reciprocating in the cylinder; a valve body provided on a downstream side of a through hole so as to open/close the through hole connecting the inside of the cylinder and a low pressure fuel passage; a first spring for energizing the valve body in a valve-opening direction; an engaging member installed on the low pressure fuel passage side, and operating the valve body to a releasing position against the force of the first spring; a second spring adding force against the force of the first spring to the engaging member; and an electromagnetic drive device for releasing the engaging member from an engagement state with the valve body against the force of the second spring.
Inventors:
YAMADA HIROYUKI
TAWARA SHIGENORI
SAITO JUNJI
TAKAHASHI YUKIO
ABE MASAMI
TAWARA SHIGENORI
SAITO JUNJI
TAKAHASHI YUKIO
ABE MASAMI
Application Number:
JP2014109661A
Publication Date:
August 21, 2014
Filing Date:
May 28, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
HITACHI CAR ENG CO LTD
HITACHI CAR ENG CO LTD
International Classes:
F02M59/34; F02M59/20; F02M59/36; F02M59/46; F02M63/02; F04B15/08; F04B49/24
Domestic Patent References:
JPH09112731A | 1997-05-02 | |||
JPS54122214U | 1979-08-27 | |||
JPS63154763U | 1988-10-11 | |||
JPS4935426U | 1974-03-28 | |||
JPS5198430A | 1976-08-30 | |||
JPS57193756A | 1982-11-29 | |||
JPH01310165A | 1989-12-14 | |||
JPH05172268A | 1993-07-09 | |||
JPH0658218A | 1994-03-01 | |||
JPH0827543A | 1996-01-30 | |||
JPH08511845A | 1996-12-10 | |||
JP2690734B2 | 1997-12-17 | |||
JPH10141177A | 1998-05-26 | |||
JPH10153157A | 1998-06-09 | |||
JP2002521615A | 2002-07-16 | |||
JP2002521616A | 2002-07-16 | |||
JP2002521615A | 2002-07-16 | |||
JP2002521616A | 2002-07-16 | |||
JPH09112731A | 1997-05-02 | |||
JPS5362022A | 1978-06-03 | |||
JPS5923059A | 1984-02-06 | |||
JPS4935426U | 1974-03-28 | |||
JPS5198430A | 1976-08-30 | |||
JPS57193756A | 1982-11-29 | |||
JPH01310165A | 1989-12-14 | |||
JPH05172268A | 1993-07-09 | |||
JPH0658218A | 1994-03-01 | |||
JPH0827543A | 1996-01-30 | |||
JPH08511845A | 1996-12-10 | |||
JP2690734B2 | 1997-12-17 | |||
JPH10141177A | 1998-05-26 | |||
JPH10153157A | 1998-06-09 | |||
JPS54122214U | 1979-08-27 | |||
JPS63154763U | 1988-10-11 | |||
JP2006200407A | 2006-08-03 | |||
JP2006307880A | 2006-11-09 | |||
JP2013164079A | 2013-08-22 |
Foreign References:
WO2000047888A1 | 2000-08-17 |
Attorney, Agent or Firm:
Manabu Inoue