ATE390556T1 - PRESSURE LIMITATION VALVE FOR FUEL INJECTORS - Google Patents

PRESSURE LIMITATION VALVE FOR FUEL INJECTORS

Info

Publication number
ATE390556T1
ATE390556T1 AT04798002T AT04798002T ATE390556T1 AT E390556 T1 ATE390556 T1 AT E390556T1 AT 04798002 T AT04798002 T AT 04798002T AT 04798002 T AT04798002 T AT 04798002T AT E390556 T1 ATE390556 T1 AT E390556T1
Authority
AT
Austria
Prior art keywords
valve
valve element
housing
intake side
pressure limiting
Prior art date
Application number
AT04798002T
Other languages
German (de)
Inventor
Holmer Slocinski
Stefan Schillinger
Original Assignee
Orange 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 Orange Gmbh filed Critical Orange Gmbh
Application granted granted Critical
Publication of ATE390556T1 publication Critical patent/ATE390556T1/en

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
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • 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
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/005—Pressure relief valves
    • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
    • 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
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/026—Means for reducing the pressure in common rails at power off

Landscapes

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

Abstract

The invention concerns a pressure limiting valve (1) for fuel injection devices, in particular for fuel injection devices produced in the form of supply manifold systems. The inventive pressure limiting valve comprises a housing (2) including a high pressure connection (5) on the intake side, a backflow connection (9), as well as a flow connection located between said two connections and controlled by a valve element (7) which is guided mobile in the housing (2) and which is sealingly spring-biased towards a valve seat (6) on the intake side in the direction of its locking position. Said valve element opens, while being limited by a stop, via a high pressure applied on the intake side and its surfaces pressurized to counter the spring force are larger in the opening position releasing the flow connection than in the locking position. Since the valve element (7) is coupled, in terms of displacement, to a surface (17) of a piston (12) mobile in the housing (2), said surface being capable of being pressurized to move the valve element (7) in the opening position, it is possible in certain operating conditions, in particular when the engine is stopped for maintenance, to open the valve regardless of the dimensioning of the pressure limiting valve so as to reduce to a selectable predefined level the pressure in the connected fuel device.
AT04798002T 2003-11-24 2004-11-19 PRESSURE LIMITATION VALVE FOR FUEL INJECTORS ATE390556T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10355124A DE10355124B4 (en) 2003-11-24 2003-11-24 Pressure relief valve for fuel injectors

Publications (1)

Publication Number Publication Date
ATE390556T1 true ATE390556T1 (en) 2008-04-15

Family

ID=34638188

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04798002T ATE390556T1 (en) 2003-11-24 2004-11-19 PRESSURE LIMITATION VALVE FOR FUEL INJECTORS

Country Status (4)

Country Link
EP (1) EP1694958B1 (en)
AT (1) ATE390556T1 (en)
DE (1) DE10355124B4 (en)
WO (1) WO2005054663A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016134A1 (en) * 2006-04-25 2007-11-08 Robert Bosch Gmbh High pressure fuel pump, has throttle arrangement provided at high pressure side of valve seat of pressure limiting valve, where cross section of arrangement is approximately equal to desired maximum opening cross section of valve
DE102010021964A1 (en) 2010-05-28 2011-12-01 Poppe & Potthoff Gmbh Pressure relief valve, particularly for limiting fluid pressure in distribution pipe, has radial outflow channel connected with bore portion via axial channel which is formed as axial bore
AT511252B1 (en) * 2011-04-08 2013-10-15 Bosch Gmbh Robert FLUSH VALVE FOR COMMON-RAIL HEAVY-OIL INJECTION SYSTEMS
WO2017032917A1 (en) * 2015-08-26 2017-03-02 Wärtsilä Finland Oy Safety valve arrangement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107830B (en) * 1998-06-08 2001-10-15 Waertsilae Tech Oy Ab Control and safety valve device in a fuel supply system
DE19852409A1 (en) * 1998-11-13 2000-05-18 Hydraulik Ring Gmbh Pressure relief valve, especially for vehicles
DE10115162C1 (en) * 2001-03-27 2002-10-02 Orange Gmbh Pressure relief valve for fuel injectors
DE10157135B4 (en) * 2001-11-21 2004-03-11 Man B & W Diesel Ag Fuel supply system in the form of a common rail system of an internal combustion engine with several cylinders

Also Published As

Publication number Publication date
EP1694958A1 (en) 2006-08-30
WO2005054663A1 (en) 2005-06-16
EP1694958B1 (en) 2008-03-26
DE10355124B4 (en) 2005-09-22
DE10355124A1 (en) 2005-07-21

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