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DE60300247D1 - High-pressure fuel pump - Google Patents

High-pressure fuel pump

Info

Publication number
DE60300247D1
DE60300247D1 DE60300247T DE60300247T DE60300247D1 DE 60300247 D1 DE60300247 D1 DE 60300247D1 DE 60300247 T DE60300247 T DE 60300247T DE 60300247 T DE60300247 T DE 60300247T DE 60300247 D1 DE60300247 D1 DE 60300247D1
Authority
DE
Germany
Prior art keywords
delivery
inlet
pumping chamber
fuel
open position
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.)
Expired - Lifetime
Application number
DE60300247T
Other languages
German (de)
Other versions
DE60300247T2 (en
Inventor
Paul Buckley
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 Operations Luxembourg SARL
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 DE60300247D1 publication Critical patent/DE60300247D1/en
Application granted granted Critical
Publication of DE60300247T2 publication Critical patent/DE60300247T2/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • 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
    • F02M59/20—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
    • F02M59/367—Pump inlet valves of the check valve type being open when actuated
    • 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
    • F02M59/462—Delivery 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
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators

Landscapes

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

Abstract

A fuel pump for use in delivering high pressure fuel to a common rail of a fuel injection system includes a pumping plunger (10) which is reciprocable within a plunger bore (12) to cause pressurisation of fuel within a pumping chamber (16). In use, during a pumping stroke, the plunger (10) is driven inwardly within the plunger bore (12) to reduce the volume of the pumping chamber (16), and during a return stroke the plunger (10) moves outwardly from the bore to increase the volume of the pumping chamber (16). An inlet valve arrangement (26) is provided, including an inlet valve (28) which is movable between an inlet open position, in which the pumping chamber (16) communicates with a low pressure fuel source (24), and an inlet closed position, in which communication between the low pressure fuel source (24) and the pumping chamber (16) is broken. The inlet valve (28) is movable from the inlet closed position to the inlet open position in response to fuel pressure acting on the inlet valve (28). The inlet valve arrangement includes an inlet valve actuator (29) which is operable to hold the inlet valve (28) in the inlet open position for at least a part of the pumping stroke. The pump also includes a delivery valve arrangement (42) having a delivery valve (44) which is movable between a delivery open position, in which the pumping chamber (16) communicates with the common rail, and a delivery closed position, in which communication between the common rail and the pumping chamber (16) is broken. The delivery valve (44) is movable from the delivery closed position to the delivery open position in response to fuel pressure acting on the delivery valve (44), and includes a delivery valve actuator (45) which is operable to hold the delivery valve (44) in the delivery open position, for at least a period of the return stroke, thereby to regulate fuel pressure within the common rail. <IMAGE>
DE60300247T 2002-05-10 2003-05-09 High-pressure fuel pump Expired - Lifetime DE60300247T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0210753 2002-05-10
GBGB0210753.0A GB0210753D0 (en) 2002-05-10 2002-05-10 Fuel pump

Publications (2)

Publication Number Publication Date
DE60300247D1 true DE60300247D1 (en) 2005-02-03
DE60300247T2 DE60300247T2 (en) 2005-12-29

Family

ID=9936439

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60300247T Expired - Lifetime DE60300247T2 (en) 2002-05-10 2003-05-09 High-pressure fuel pump

Country Status (4)

Country Link
EP (1) EP1361360B1 (en)
AT (1) ATE286209T1 (en)
DE (1) DE60300247T2 (en)
GB (1) GB0210753D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010041031A1 (en) * 2010-09-20 2012-03-22 Robert Bosch Gmbh Controlled suction valve
DE102012218415A1 (en) * 2012-10-10 2014-04-10 Continental Automotive Gmbh High pressure pump and method for conveying a fluid
DE102014214231A1 (en) * 2014-07-22 2016-01-28 Robert Bosch Gmbh Electromagnetic actuator for a suction valve and suction valve
DE102016217230B3 (en) * 2016-09-09 2017-09-14 Continental Automotive Gmbh Method for operating a high-pressure fuel pump, and high-pressure fuel pump
DE102016220364A1 (en) * 2016-10-18 2018-04-19 Robert Bosch Gmbh Electromagnetically actuated inlet valve and high-pressure pump with inlet valve
IT201700115915A1 (en) * 2017-10-13 2019-04-13 Bosch Gmbh Robert PUMP UNIT FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE
CN120576016A (en) * 2025-08-01 2025-09-02 苏州领动国创科技有限公司 High-pressure common rail system, control method and device suitable for aviation piston engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9615359D0 (en) * 1996-07-22 1996-09-04 Lucas Ind Plc Fuel pump
JP3237549B2 (en) * 1996-11-25 2001-12-10 トヨタ自動車株式会社 High pressure fuel supply system for internal combustion engine
JP3465641B2 (en) * 1999-07-28 2003-11-10 トヨタ自動車株式会社 Fuel pump control device
JP3842002B2 (en) * 2000-03-01 2006-11-08 三菱電機株式会社 Variable discharge fuel supply system
DE10052629A1 (en) * 2000-10-24 2002-05-08 Bosch Gmbh Robert High pressure fuel pump with variable delivery rate

Also Published As

Publication number Publication date
GB0210753D0 (en) 2002-06-19
EP1361360A1 (en) 2003-11-12
ATE286209T1 (en) 2005-01-15
EP1361360B1 (en) 2004-12-29
DE60300247T2 (en) 2005-12-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DELPHI TECHNOLOGIES HOLDING S.A.R.L., BASCHARA, LU