JPH04353262A - Fuel injection device - Google Patents

Fuel injection device

Info

Publication number
JPH04353262A
JPH04353262A JP3155656A JP15565691A JPH04353262A JP H04353262 A JPH04353262 A JP H04353262A JP 3155656 A JP3155656 A JP 3155656A JP 15565691 A JP15565691 A JP 15565691A JP H04353262 A JPH04353262 A JP H04353262A
Authority
JP
Japan
Prior art keywords
peripheral
plunger
cylinder
fuel
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3155656A
Other languages
Japanese (ja)
Inventor
Hiroshi Inoue
Akira Shibata
Original Assignee
Nippondenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippondenso Co Ltd filed Critical Nippondenso Co Ltd
Priority to JP3155656A priority Critical patent/JPH04353262A/en
Publication of JPH04353262A publication Critical patent/JPH04353262A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a fuel injection device that reduces fuel leak through an opening between a plunger and a cylinder inner peripheral wall and restrains the dilution of internal combustion engine lubrication oil with fuel and prevents the lowering of internal combustion engine reliability.
CONSTITUTION: A plunger 4 that slides in reciprocation at a cylinder 3 inner peripheral wall surface in responsive motion to a cam shaft 9, is provided, and a pump chamber 12 is formed of a plunger end surface 4a and the cylinder 3 inner peripheral wall surface. The pump chamber 12 is connected to a low pressure fuel passage 39 through the seat portion 28 of an injection time control solenoid valve 20 and at the same time communicates with a high pressure injection pipe 18 through a discharge valve 16. An annular leak fuel recovery groove 42 is formed at the inner peripheral wall of the cylinder 3 into which the plunger 4 is inserted, and the groove 42 and the passage 39 are connected to each other by means of a leak passage 44. An annular seal member 40 is provided at a cylinder 3 inner peripheral wall passage surface on the cam chamber 11 side of the leak fuel recovery groove 42, and the member 40 is brought into contact with the outer peripheral surface of the plunger 4 liquid-tightly.
COPYRIGHT: (C)1992,JPO&Japio
JP3155656A 1991-05-29 1991-05-29 Fuel injection device Pending JPH04353262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3155656A JPH04353262A (en) 1991-05-29 1991-05-29 Fuel injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3155656A JPH04353262A (en) 1991-05-29 1991-05-29 Fuel injection device

Publications (1)

Publication Number Publication Date
JPH04353262A true JPH04353262A (en) 1992-12-08

Family

ID=15610738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3155656A Pending JPH04353262A (en) 1991-05-29 1991-05-29 Fuel injection device

Country Status (1)

Country Link
JP (1) JPH04353262A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5567134A (en) * 1994-06-24 1996-10-22 Nippondenso Co., Ltd. High-pressure fuel-feed pump
WO2001079698A1 (en) * 2000-04-18 2001-10-25 Toyota Jidosha Kabushiki Kaisha High-pressure fuel pump
WO2002055870A1 (en) * 2001-01-05 2002-07-18 Hitachi, Ltd. High-pressure fuel feed pump
JP2003003925A (en) * 2001-06-19 2003-01-08 Denso Corp Fuel supply system for alternative fuel
EP1355059A3 (en) * 2002-04-19 2005-06-15 Nissan Motor Co., Ltd. Fuel pump
EP1657432A1 (en) * 1999-02-09 2006-05-17 Hitachi, Ltd. High pressure fuel supply pump for internal combustion engine
EP1975402A1 (en) * 2006-01-16 2008-10-01 Nok Corporation High-pressure fuel pump and seal system for high-pressure fuel pump
WO2010022219A3 (en) * 2008-08-21 2010-06-24 Cummins Intellectual Properties, Inc. Fuel pump
JP2012202375A (en) * 2011-03-28 2012-10-22 Denso Corp High-pressure pump
ITMI20131370A1 (en) * 2013-08-08 2015-02-09 Bosch Gmbh Robert Pumping unit for feeding fuel, preferably diesel, to an internal combustion engine
CN104989572A (en) * 2015-07-20 2015-10-21 无锡威孚高科技集团股份有限公司 Split type electronic unit pump for diesel engine
WO2016012142A1 (en) * 2014-07-22 2016-01-28 Robert Bosch Gmbh High-pressure fuel pump, in particular plug-in pump
JP2016138532A (en) * 2015-01-29 2016-08-04 株式会社デンソー High-pressure fuel pump
JP2016148268A (en) * 2015-02-12 2016-08-18 株式会社デンソー Fuel supply device
WO2017138270A1 (en) * 2016-02-12 2017-08-17 株式会社デンソー Fuel pump control device
WO2019141486A1 (en) * 2018-01-17 2019-07-25 Robert Bosch Gmbh Fuel delivery device for cryogenic fuels

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5567134A (en) * 1994-06-24 1996-10-22 Nippondenso Co., Ltd. High-pressure fuel-feed pump
EP1657432A1 (en) * 1999-02-09 2006-05-17 Hitachi, Ltd. High pressure fuel supply pump for internal combustion engine
JP2016153652A (en) * 1999-02-09 2016-08-25 日立オートモティブシステムズ株式会社 High-pressure fuel supply pump of internal combustion engine
US7540274B2 (en) 1999-02-09 2009-06-02 Hitachi, Ltd. High pressure fuel supply pump for internal combustion engine
JP2015078705A (en) * 1999-02-09 2015-04-23 日立オートモティブシステムズ株式会社 High pressure fuel supply pump of internal combustion engine
WO2001079698A1 (en) * 2000-04-18 2001-10-25 Toyota Jidosha Kabushiki Kaisha High-pressure fuel pump
US6789459B2 (en) 2000-04-18 2004-09-14 Toyota Jidosha Kabushiki Kaisha High-pressure fuel pump
WO2002055870A1 (en) * 2001-01-05 2002-07-18 Hitachi, Ltd. High-pressure fuel feed pump
US6805105B2 (en) 2001-06-19 2004-10-19 Denso Corporation Fuel supply system for alternative fuel
JP2003003925A (en) * 2001-06-19 2003-01-08 Denso Corp Fuel supply system for alternative fuel
EP1355059A3 (en) * 2002-04-19 2005-06-15 Nissan Motor Co., Ltd. Fuel pump
EP1975402A1 (en) * 2006-01-16 2008-10-01 Nok Corporation High-pressure fuel pump and seal system for high-pressure fuel pump
EP1975402A4 (en) * 2006-01-16 2011-04-13 Nok Corp High-pressure fuel pump and seal system for high-pressure fuel pump
WO2010022219A3 (en) * 2008-08-21 2010-06-24 Cummins Intellectual Properties, Inc. Fuel pump
US9151289B2 (en) 2008-08-21 2015-10-06 Cummins Inc. Fuel pump
JP2012202375A (en) * 2011-03-28 2012-10-22 Denso Corp High-pressure pump
ITMI20131370A1 (en) * 2013-08-08 2015-02-09 Bosch Gmbh Robert Pumping unit for feeding fuel, preferably diesel, to an internal combustion engine
WO2016012142A1 (en) * 2014-07-22 2016-01-28 Robert Bosch Gmbh High-pressure fuel pump, in particular plug-in pump
JP2016138532A (en) * 2015-01-29 2016-08-04 株式会社デンソー High-pressure fuel pump
JP2016148268A (en) * 2015-02-12 2016-08-18 株式会社デンソー Fuel supply device
CN104989572A (en) * 2015-07-20 2015-10-21 无锡威孚高科技集团股份有限公司 Split type electronic unit pump for diesel engine
WO2017138270A1 (en) * 2016-02-12 2017-08-17 株式会社デンソー Fuel pump control device
JP2017141762A (en) * 2016-02-12 2017-08-17 株式会社デンソー Control device for fuel pump
CN108603472A (en) * 2016-02-12 2018-09-28 株式会社电装 The control device of petrolift
US10641219B2 (en) 2016-02-12 2020-05-05 Denso Corporation Fuel pump control device
WO2019141486A1 (en) * 2018-01-17 2019-07-25 Robert Bosch Gmbh Fuel delivery device for cryogenic fuels

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