EP1247976A3 - Over-pressure relief valve in a fuel system - Google Patents

Over-pressure relief valve in a fuel system Download PDF

Info

Publication number
EP1247976A3
EP1247976A3 EP02252327A EP02252327A EP1247976A3 EP 1247976 A3 EP1247976 A3 EP 1247976A3 EP 02252327 A EP02252327 A EP 02252327A EP 02252327 A EP02252327 A EP 02252327A EP 1247976 A3 EP1247976 A3 EP 1247976A3
Authority
EP
European Patent Office
Prior art keywords
fuel
high pressure
pressure
relief valve
housing parts
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
EP02252327A
Other languages
German (de)
French (fr)
Other versions
EP1247976A2 (en
EP1247976B1 (en
Inventor
Anthony John Williams
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1247976A2 publication Critical patent/EP1247976A2/en
Publication of EP1247976A3 publication Critical patent/EP1247976A3/en
Application granted granted Critical
Publication of EP1247976B1 publication Critical patent/EP1247976B1/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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48—Assembling; Disassembling; Replacing
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Safety Valves (AREA)

Abstract

A fuel system (10) arranged to deliver fuel at high pressure to a fuel injector through a high pressure fuel line (42, 44) defined, at least in part, within first and second housing parts (46, 40) of a pressure relief valve arrangement. The first and second housing parts (46, 40) define first and second separable valve surfaces respectively. A clamping means (46) is provided for applying a clamping load to the first and second housing parts (46, 40) so as to urge first and second valve surfaces respectively thereof into substantially sealing engagement. The clamping means is arranged to permit separation of the first and second valve surfaces in the event that fuel pressure within the high pressure fuel line (42, 44) exceeds a predetermined amount, thereby to permit fuel within the high pressure fuel line (42, 44) to flow to a region (62) of relatively low pressure to relieve fuel pressure within the high pressure fuel line.
EP02252327A 2001-04-02 2002-03-28 Over-pressure relief valve in a fuel system Expired - Lifetime EP1247976B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0108216 2001-04-02
GBGB0108216.3A GB0108216D0 (en) 2001-04-02 2001-04-02 Fuel Injector

Publications (3)

Publication Number Publication Date
EP1247976A2 EP1247976A2 (en) 2002-10-09
EP1247976A3 true EP1247976A3 (en) 2004-02-11
EP1247976B1 EP1247976B1 (en) 2006-11-15

Family

ID=9912071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02252327A Expired - Lifetime EP1247976B1 (en) 2001-04-02 2002-03-28 Over-pressure relief valve in a fuel system

Country Status (4)

Country Link
EP (1) EP1247976B1 (en)
AT (1) ATE345441T1 (en)
DE (1) DE60215994T2 (en)
GB (1) GB0108216D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4453028B2 (en) * 2005-03-30 2010-04-21 株式会社デンソー High pressure fuel pump
DE102013220768A1 (en) 2013-10-15 2015-04-16 Continental Automotive Gmbh valve assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673853A (en) * 1995-09-13 1997-10-07 Cummins Engine Company, Inc. Electromagnetic fuel injector control valve
EP0856661A2 (en) * 1997-01-30 1998-08-05 Lucas Industries Public Limited Company Fuel pump
DE19822671A1 (en) * 1998-05-20 1999-11-25 Bosch Gmbh Robert Pressure limiting valve for internal combustion engine
US6003497A (en) * 1994-10-31 1999-12-21 Caterpillar Inc. Mechanically actuated hydraulically amplified fuel injector with electrically controlled pressure relief
US6125822A (en) * 2000-02-04 2000-10-03 Stanadyne Automotive Corp. Two stage pressure relief valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6003497A (en) * 1994-10-31 1999-12-21 Caterpillar Inc. Mechanically actuated hydraulically amplified fuel injector with electrically controlled pressure relief
US5673853A (en) * 1995-09-13 1997-10-07 Cummins Engine Company, Inc. Electromagnetic fuel injector control valve
EP0856661A2 (en) * 1997-01-30 1998-08-05 Lucas Industries Public Limited Company Fuel pump
DE19822671A1 (en) * 1998-05-20 1999-11-25 Bosch Gmbh Robert Pressure limiting valve for internal combustion engine
US6125822A (en) * 2000-02-04 2000-10-03 Stanadyne Automotive Corp. Two stage pressure relief valve

Also Published As

Publication number Publication date
DE60215994T2 (en) 2007-09-20
GB0108216D0 (en) 2001-05-23
DE60215994D1 (en) 2006-12-28
ATE345441T1 (en) 2006-12-15
EP1247976A2 (en) 2002-10-09
EP1247976B1 (en) 2006-11-15

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