EP1184568A3 - Fuel pump - Google Patents

Fuel pump Download PDF

Info

Publication number
EP1184568A3
EP1184568A3 EP01307398A EP01307398A EP1184568A3 EP 1184568 A3 EP1184568 A3 EP 1184568A3 EP 01307398 A EP01307398 A EP 01307398A EP 01307398 A EP01307398 A EP 01307398A EP 1184568 A3 EP1184568 A3 EP 1184568A3
Authority
EP
European Patent Office
Prior art keywords
pumping
plunger
fuel
flow path
bore
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
EP01307398A
Other languages
German (de)
French (fr)
Other versions
EP1184568B1 (en
EP1184568A2 (en
Inventor
Peter Alban George Collingborn
Ian Roy Thornthwaite
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 EP1184568A2 publication Critical patent/EP1184568A2/en
Publication of EP1184568A3 publication Critical patent/EP1184568A3/en
Application granted granted Critical
Publication of EP1184568B1 publication Critical patent/EP1184568B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • F04B1/043—Hydraulic arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B5/00—Machines or pumps with differential-surface pistons

Landscapes

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

Abstract

A fuel pump comprising a plurality of radially spaced pumping arrangements (10a, 10b, 10c), each of which includes a pumping plunger (20a, 20b, 20c) which is reciprocable within a plunger bore (19a, 19b, 19c) formed in a pump housing (18) under the influence of a respective driven tappet member (24a, 24b, 24c) which acts to transmit a force to the pumping plunger (20a, 20b, 20c) during a forward stroke thereof. The plunger bore (19a, 19b, 19c) defines a pumping chamber (22a, 22b, 22c) within which pressurisation of fuel to a relatively high level occurs upon reciprocal movement of the pumping plunger within the plunger bore. An end region of the tappet member (24a, 24b, 24c) is provided with a further bore (70a, 70b, 70c), a surface associated with the end region of the tappet member (24a, 24b, 24c) defining, in part, an annular auxiliary pumping chamber (40a, 40b, 40c) for fuel, the further bore (70a, 70b, 70c) defining a working chamber (51a, 51b, 51c) arranged to receive fuel to generate a force on the tappet member (24a, 24b, 24c) which acts in a return direction so as to increase the volume of the pumping chamber (22a, 22b, 22c) during a return stroke of the pumping plunger. The fuel pump further comprises a transfer pressure flow path (43) providing communication between the auxiliary pumping chamber (40a, 40b, 40c) of a first pumping arrangement (10a) and the pumping chamber (22b, 22c) of at least one of the other pumping arrangements (10a, 10b) such that fuel displaced from the auxiliary pumping chamber (40a, 40b, 40c), in use, can be supplied through the transfer pressure flow path (43) to said at least one of the other pumping chambers (22b, 22c). The auxiliary pumping chambers (40a, 40b, 40c) and the transfer pressure flow path (43) are constructed and adapted to ensure fuel flows through the transfer pressure flow path (43) at a substantially constant flow rate for a given speed of rotation of the pump.
EP20010307398 2000-08-31 2001-08-31 Fuel pump Expired - Lifetime EP1184568B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0021295A GB2366336A (en) 2000-08-31 2000-08-31 Fuel pump
GB0021295 2000-08-31

Publications (3)

Publication Number Publication Date
EP1184568A2 EP1184568A2 (en) 2002-03-06
EP1184568A3 true EP1184568A3 (en) 2002-06-12
EP1184568B1 EP1184568B1 (en) 2004-11-17

Family

ID=9898533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010307398 Expired - Lifetime EP1184568B1 (en) 2000-08-31 2001-08-31 Fuel pump

Country Status (3)

Country Link
EP (1) EP1184568B1 (en)
DE (1) DE60107169T2 (en)
GB (1) GB2366336A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101198784B (en) * 2005-06-16 2010-05-19 罗伯特·博世有限公司 Fuel injection system for an internal combustion engine

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0228559D0 (en) * 2002-12-06 2003-01-15 Delphi Tech Inc Hydraulic pump
GB0229367D0 (en) * 2002-12-17 2003-01-22 Delphi Tech Inc Fuel Pump
JP3915718B2 (en) * 2003-03-11 2007-05-16 株式会社デンソー Fuel supply pump
DE10335603A1 (en) * 2003-08-04 2005-03-03 Robert Bosch Gmbh High-pressure pump for a fuel injection device of an internal combustion engine
DE10356262A1 (en) * 2003-12-03 2005-06-30 Robert Bosch Gmbh Radial piston pump, in particular for fuel injection systems
DE102004053270A1 (en) * 2004-11-04 2006-05-11 Robert Bosch Gmbh High-pressure pump, in particular for a fuel injection device of an internal combustion engine
EP2050952A1 (en) * 2007-10-16 2009-04-22 Delphi Technologies, Inc. Fuel pump
DE102009054944A1 (en) * 2009-12-18 2011-06-22 Robert Bosch GmbH, 70469 Cavitation avoidance at the pump cylinder of a high-pressure pump
GB201012634D0 (en) 2010-07-28 2010-09-15 Delphi Technologies Holding Intermediate drive assembly
EP2535584A1 (en) * 2011-06-15 2012-12-19 Delphi Technologies Holding S.à.r.l. Pump assembly
ES2526599T3 (en) * 2012-03-12 2015-01-13 Delphi International Operations Luxembourg S.À R.L. Fuel pump assembly
DE102012224308A1 (en) * 2012-12-21 2014-06-26 Continental Automotive Gmbh high pressure pump
DE102013218873A1 (en) * 2013-09-19 2015-03-19 Robert Bosch Gmbh Fluid delivery system for a fluid
CA3034594A1 (en) 2018-02-23 2019-08-23 Tti (Macao Commercial Offshore) Limited Transfer pump and transfer pump accessory
GB2575247B (en) * 2018-06-26 2020-11-04 Delphi Tech Ip Ltd Tappet for a fuel pump
DE102018210503A1 (en) 2018-06-27 2020-01-02 Robert Bosch Gmbh pump assembly
CN109779867A (en) * 2019-02-12 2019-05-21 中国民航大学 Tower lobe pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB533961A (en) * 1939-08-22 1941-02-25 Arthur John Rowledge Improvements in or relating to reciprocating pumps
US2702008A (en) * 1952-06-09 1955-02-15 John M Stockard Pumping apparatus
GB837087A (en) * 1958-03-01 1960-06-09 Pierre Etienne Bessiere Improvements relating to reciprocating pumps, fuel injection pumps operated by a rotary cam
GB1062575A (en) * 1964-02-05 1967-03-22 Cav Ltd Liquid fuel injection pumps
DE19612413A1 (en) * 1996-03-28 1997-10-02 Rexroth Mannesmann Gmbh Fuel injection system for diesel engine
EP0972936A2 (en) * 1998-07-14 2000-01-19 LUCAS INDUSTRIES public limited company Positive displacement pumps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB533961A (en) * 1939-08-22 1941-02-25 Arthur John Rowledge Improvements in or relating to reciprocating pumps
US2702008A (en) * 1952-06-09 1955-02-15 John M Stockard Pumping apparatus
GB837087A (en) * 1958-03-01 1960-06-09 Pierre Etienne Bessiere Improvements relating to reciprocating pumps, fuel injection pumps operated by a rotary cam
GB1062575A (en) * 1964-02-05 1967-03-22 Cav Ltd Liquid fuel injection pumps
DE19612413A1 (en) * 1996-03-28 1997-10-02 Rexroth Mannesmann Gmbh Fuel injection system for diesel engine
EP0972936A2 (en) * 1998-07-14 2000-01-19 LUCAS INDUSTRIES public limited company Positive displacement pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101198784B (en) * 2005-06-16 2010-05-19 罗伯特·博世有限公司 Fuel injection system for an internal combustion engine

Also Published As

Publication number Publication date
GB2366336A (en) 2002-03-06
EP1184568B1 (en) 2004-11-17
EP1184568A2 (en) 2002-03-06
GB0021295D0 (en) 2000-10-18
DE60107169D1 (en) 2004-12-23
DE60107169T2 (en) 2005-12-15

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