CA2473639A1 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
CA2473639A1
CA2473639A1 CA002473639A CA2473639A CA2473639A1 CA 2473639 A1 CA2473639 A1 CA 2473639A1 CA 002473639 A CA002473639 A CA 002473639A CA 2473639 A CA2473639 A CA 2473639A CA 2473639 A1 CA2473639 A1 CA 2473639A1
Authority
CA
Canada
Prior art keywords
valve
fuel
needle
valve needle
fuel injection
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.)
Granted
Application number
CA002473639A
Other languages
French (fr)
Other versions
CA2473639C (en
Inventor
Richard Wing
Ian Lockley
Kevin Oversby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westport Power Inc
Original Assignee
Westport Research Inc
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 Westport Research Inc filed Critical Westport Research Inc
Priority to CA002473639A priority Critical patent/CA2473639C/en
Publication of CA2473639A1 publication Critical patent/CA2473639A1/en
Priority to EP05763563A priority patent/EP1766226A4/en
Priority to PCT/CA2005/001062 priority patent/WO2006005167A1/en
Priority to JP2007519584A priority patent/JP4571669B2/en
Priority to CN2005800230939A priority patent/CN101044313B/en
Application granted granted Critical
Publication of CA2473639C publication Critical patent/CA2473639C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

A fuel injection valve is provided for introducing a fuel into an engine and controlling fuel flow to reduce variability between injection events. The fuel injection valve employs an arrangement for a valve nozzle that cooperates with a valve needle. The valve needle and the valve body are shaped to cooperatively provide a constant flow area between the valve needle and the valve body. The constant flow area restricts flow through the nozzle so that mass flow rate is substantially constant for a range of valve needle movement within a predetermined range of needle movement. The method comprises commanding a valve needle to a position within the predetermined range of needle movement to reduce variability in the fuel mass flow rate, particularly when the engine is idling or operating under low load conditions. This improves injection consistency, thereby stabilizing engine operation, decreasing emissions, and increasing efficiency.
CA002473639A 2004-07-09 2004-07-09 Fuel injection valve Expired - Fee Related CA2473639C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002473639A CA2473639C (en) 2004-07-09 2004-07-09 Fuel injection valve
EP05763563A EP1766226A4 (en) 2004-07-09 2005-07-08 Fuel injection valve
PCT/CA2005/001062 WO2006005167A1 (en) 2004-07-09 2005-07-08 Fuel injection valve
JP2007519584A JP4571669B2 (en) 2004-07-09 2005-07-08 Fuel injection valve
CN2005800230939A CN101044313B (en) 2004-07-09 2005-07-08 Fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002473639A CA2473639C (en) 2004-07-09 2004-07-09 Fuel injection valve

Publications (2)

Publication Number Publication Date
CA2473639A1 true CA2473639A1 (en) 2004-11-12
CA2473639C CA2473639C (en) 2006-11-14

Family

ID=33426249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002473639A Expired - Fee Related CA2473639C (en) 2004-07-09 2004-07-09 Fuel injection valve

Country Status (5)

Country Link
EP (1) EP1766226A4 (en)
JP (1) JP4571669B2 (en)
CN (1) CN101044313B (en)
CA (1) CA2473639C (en)
WO (1) WO2006005167A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006053821A1 (en) * 2004-11-19 2006-05-26 Robert Bosch Gmbh Fuel-injection nozzle
EP1812700A1 (en) * 2004-11-02 2007-08-01 Westport Research Inc. Method of injecting a gaseous fuel into an internal combustion engine
US9856843B2 (en) 2012-07-13 2018-01-02 Continental Automotive Gmbh Fluid injector
US9855591B2 (en) 2012-07-13 2018-01-02 Continental Automotive Gmbh Method for producing a solid actuator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006011721A1 (en) * 2006-03-14 2007-09-20 Siemens Ag Injector for controlled injection of a gaseous fuel stream into a predetermined combustion zone and associated method for controlled injection
EP2660461B1 (en) * 2010-12-28 2015-07-01 Hyundai Heavy Industries Co., Ltd. Electronically controlled fuel injection valve
DE102011082455B4 (en) * 2011-09-09 2014-02-13 Continental Automotive Gmbh Method for monitoring an injection quantity of a fluid and injection system for injecting an injection quantity of a fluid
US9605639B2 (en) 2012-07-12 2017-03-28 Ford Global Technologies, Llc Fuel injector
CN103423053A (en) * 2013-08-16 2013-12-04 浙江展途动力科技有限公司 Fuel injection nozzle for piezoelectric direct drive fuel injector
EP3489557B1 (en) 2013-12-20 2020-04-22 IMI Hydronic Engineering International SA A valve and a method of operating a valve
US9840994B2 (en) * 2015-11-04 2017-12-12 Ford Global Technologies, Llc Annulus nozzle injector with tangential fins
JP6237819B2 (en) * 2016-04-28 2017-11-29 株式会社デンソー Fuel injection control device and fuel injection system
KR102015582B1 (en) * 2017-12-11 2019-08-28 (주)넥스트가스이노베이션 Combustion apparatus using direct injection for lpg

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540126A (en) * 1982-04-08 1985-09-10 Nissan Motor Co., Ltd. Fuel injection nozzle
JPS59148467U (en) * 1983-03-25 1984-10-04 株式会社ボッシュオートモーティブ　システム fuel injection valve device
JPS6031204A (en) 1983-08-01 1985-02-18 大東通信機株式会社 Overcurrent protecting element
SE8306433L (en) * 1983-11-22 1985-05-23 Kockums Ab CONTROL FOR EXACT CONTROL OF VALVES
DE4017391C2 (en) * 1990-05-30 1993-10-07 Man Nutzfahrzeuge Ag Injection cross-section-controlled injection nozzle for air-distributed fuel injection in an air-compressing internal combustion engine
JP2982542B2 (en) * 1993-03-11 1999-11-22 トヨタ自動車株式会社 Fuel injection device
DE19500706C2 (en) * 1995-01-12 2003-09-25 Bosch Gmbh Robert Metering valve for dosing liquids or gases
DE19546033A1 (en) * 1995-12-09 1997-06-12 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE19755057A1 (en) * 1997-12-11 1999-06-17 Bosch Gmbh Robert Fuel injection nozzle for self-igniting internal combustion engines
US6575138B2 (en) 1999-10-15 2003-06-10 Westport Research Inc. Directly actuated injection valve
US6298829B1 (en) 1999-10-15 2001-10-09 Westport Research Inc. Directly actuated injection valve
US6564777B2 (en) 1999-10-15 2003-05-20 Westport Research Inc. Directly actuated injection valve with a composite needle
US6584958B2 (en) * 1999-10-15 2003-07-01 Westport Research Inc. Directly actuated injection valve with a ferromagnetic needle
JP4221898B2 (en) * 2000-02-29 2009-02-12 株式会社デンソー Fuel injection nozzle
DE10061571B4 (en) * 2000-12-11 2007-03-22 Robert Bosch Gmbh Fuel injector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1812700A1 (en) * 2004-11-02 2007-08-01 Westport Research Inc. Method of injecting a gaseous fuel into an internal combustion engine
EP1812700A4 (en) * 2004-11-02 2008-09-24 Westport Power Inc Method of injecting a gaseous fuel into an internal combustion engine
WO2006053821A1 (en) * 2004-11-19 2006-05-26 Robert Bosch Gmbh Fuel-injection nozzle
US9856843B2 (en) 2012-07-13 2018-01-02 Continental Automotive Gmbh Fluid injector
US9855591B2 (en) 2012-07-13 2018-01-02 Continental Automotive Gmbh Method for producing a solid actuator

Also Published As

Publication number Publication date
CN101044313B (en) 2011-09-28
EP1766226A1 (en) 2007-03-28
JP2008505279A (en) 2008-02-21
WO2006005167A1 (en) 2006-01-19
EP1766226A4 (en) 2010-03-03
CA2473639C (en) 2006-11-14
CN101044313A (en) 2007-09-26
JP4571669B2 (en) 2010-10-27

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20210709