EP0971122A3 - Fuel injection pump for an internal combustion engine - Google Patents

Fuel injection pump for an internal combustion engine Download PDF

Info

Publication number
EP0971122A3
EP0971122A3 EP99113211A EP99113211A EP0971122A3 EP 0971122 A3 EP0971122 A3 EP 0971122A3 EP 99113211 A EP99113211 A EP 99113211A EP 99113211 A EP99113211 A EP 99113211A EP 0971122 A3 EP0971122 A3 EP 0971122A3
Authority
EP
European Patent Office
Prior art keywords
control
piston
combustion engine
internal combustion
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
EP99113211A
Other languages
German (de)
French (fr)
Other versions
EP0971122A2 (en
EP0971122B1 (en
Inventor
Rolf Prillwitz
Hans-Joachim Koch
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.)
LOrange GmbH
Original Assignee
LOrange GmbH
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 LOrange GmbH filed Critical LOrange GmbH
Publication of EP0971122A2 publication Critical patent/EP0971122A2/en
Publication of EP0971122A3 publication Critical patent/EP0971122A3/en
Application granted granted Critical
Publication of EP0971122B1 publication Critical patent/EP0971122B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/22—Varying quantity or timing by adjusting cylinder-head space
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

A high pressure fuel pump, e.g. for a diesel engine, has a control duct through the pump piston to control the start and end points of the fuel pulse. The end point is controlled by a sloping duct (7) and is variable through the rotational setting of the piston. A controlled delay in the start of the fuel pulse is provided by a control piston (12) in a control cylinder (10) on the input duct of the fuel pump. The control piston (12) is linked to a drive piston (11) by a control spring (13) for a simple mode of control.
EP99113211A 1998-07-10 1999-07-08 Fuel injection pump for an internal combustion engine Expired - Lifetime EP0971122B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19831077 1998-07-10
DE19831077A DE19831077A1 (en) 1998-07-10 1998-07-10 Fuel injection pump for an internal combustion engine

Publications (3)

Publication Number Publication Date
EP0971122A2 EP0971122A2 (en) 2000-01-12
EP0971122A3 true EP0971122A3 (en) 2001-04-18
EP0971122B1 EP0971122B1 (en) 2003-05-14

Family

ID=7873707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99113211A Expired - Lifetime EP0971122B1 (en) 1998-07-10 1999-07-08 Fuel injection pump for an internal combustion engine

Country Status (3)

Country Link
EP (1) EP0971122B1 (en)
AT (1) ATE240456T1 (en)
DE (2) DE19831077A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004050021A1 (en) * 2004-10-13 2006-04-20 L'orange Gmbh Magnetic piston pump for pumping and dosing liquids has alternate volume connected to pump cavity
FI118055B (en) * 2005-11-23 2007-06-15 Waertsilae Finland Oy Piston engine injection pump
KR101144504B1 (en) * 2010-10-20 2012-05-11 현대중공업 주식회사 Fuel injection pump with variable injection pressure chamber
KR101219977B1 (en) 2011-04-29 2013-01-09 현대중공업 주식회사 Fuel injection pump with Variable Injection Pressure chamber controled by Two phase of oil cylinder
KR101178630B1 (en) 2011-04-29 2012-08-30 현대중공업 주식회사 Fuel injection pump with variable injection pressure chamber controled by cam

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537087A (en) * 1942-03-07 1951-01-09 Atlas Diesel Ab Fuel injection apparatus
US2810375A (en) * 1953-04-13 1957-10-22 Nordberg Manufacturing Co Injection pump for internal combustion engines
CH328209A (en) * 1953-12-23 1958-02-28 Cav Ltd Fuel injection pump for internal combustion engines
DE3241572A1 (en) * 1981-11-10 1983-05-19 Nippondenso Co., Ltd., Kariya, Aichi FUEL INJECTION DEVICE
JPS5977046A (en) * 1982-10-26 1984-05-02 Nippon Denso Co Ltd Fuel injection device
JPS6062658A (en) * 1983-09-16 1985-04-10 Mitsubishi Heavy Ind Ltd Injection start timing changer of jerk type fuel pump
DE3801929A1 (en) * 1987-01-30 1988-08-11 Volkswagen Ag Fuel injection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537087A (en) * 1942-03-07 1951-01-09 Atlas Diesel Ab Fuel injection apparatus
US2810375A (en) * 1953-04-13 1957-10-22 Nordberg Manufacturing Co Injection pump for internal combustion engines
CH328209A (en) * 1953-12-23 1958-02-28 Cav Ltd Fuel injection pump for internal combustion engines
DE3241572A1 (en) * 1981-11-10 1983-05-19 Nippondenso Co., Ltd., Kariya, Aichi FUEL INJECTION DEVICE
JPS5977046A (en) * 1982-10-26 1984-05-02 Nippon Denso Co Ltd Fuel injection device
JPS6062658A (en) * 1983-09-16 1985-04-10 Mitsubishi Heavy Ind Ltd Injection start timing changer of jerk type fuel pump
DE3801929A1 (en) * 1987-01-30 1988-08-11 Volkswagen Ag Fuel injection device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 186 (M - 320) 25 August 1984 (1984-08-25) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 198 (M - 404) 15 August 1985 (1985-08-15) *

Also Published As

Publication number Publication date
EP0971122A2 (en) 2000-01-12
DE19831077A1 (en) 2000-01-13
ATE240456T1 (en) 2003-05-15
DE59905531D1 (en) 2003-06-18
EP0971122B1 (en) 2003-05-14

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