ATE439518T1 - FUEL INJECTION PUMP DEVICE - Google Patents

FUEL INJECTION PUMP DEVICE

Info

Publication number
ATE439518T1
ATE439518T1 AT06254515T AT06254515T ATE439518T1 AT E439518 T1 ATE439518 T1 AT E439518T1 AT 06254515 T AT06254515 T AT 06254515T AT 06254515 T AT06254515 T AT 06254515T AT E439518 T1 ATE439518 T1 AT E439518T1
Authority
AT
Austria
Prior art keywords
roller
shoe
cam
surface roughness
fuel injection
Prior art date
Application number
AT06254515T
Other languages
German (de)
Inventor
Detlev Schoeppe
Original Assignee
Delphi Tech 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 Tech Inc filed Critical Delphi Tech Inc
Application granted granted Critical
Publication of ATE439518T1 publication Critical patent/ATE439518T1/en

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
    • F04B1/0404—Details or component parts
    • F04B1/0439—Supporting or guiding means for the pistons
    • 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

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 assembly for use in an engine comprising a pumping plunger (14) which is reciprocable, in use, under the influence of an associated drive arrangement (24, 26) so as to cause pressurisation of fuel within a pumping chamber (22). The drive arrangement includes a shoe (24) and a roller (26) which is cooperable with a driven cam (28) so as to impart reciprocal movement to the shoe (24) as the cam (28) is driven, in use. The roller (26) has a first surface area region (54) having a first surface roughness and a second surface area region (52) having a second surface roughness higher than the first surface roughness and in that static friction between the roller (26) and the cam (28) is larger than static friction between the roller (26) and the shoe (24).
AT06254515T 2005-09-27 2006-08-30 FUEL INJECTION PUMP DEVICE ATE439518T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0519680.3A GB0519680D0 (en) 2005-09-27 2005-09-27 Fuel pump assembly

Publications (1)

Publication Number Publication Date
ATE439518T1 true ATE439518T1 (en) 2009-08-15

Family

ID=35335537

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06254515T ATE439518T1 (en) 2005-09-27 2006-08-30 FUEL INJECTION PUMP DEVICE

Country Status (6)

Country Link
US (1) US20070071622A1 (en)
EP (1) EP1767772B1 (en)
JP (1) JP2007092754A (en)
AT (1) ATE439518T1 (en)
DE (1) DE602006008396D1 (en)
GB (1) GB0519680D0 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008008438A1 (en) * 2008-02-11 2009-08-13 Continental Automotive Gmbh High-pressure pump has tappet, which serves for indirect support of piston with longitudinal axis at drive shaft over roller, which is pivotally coupled with tappet
DE102008017222A1 (en) * 2008-04-04 2009-10-08 Continental Automotive Gmbh Pump arrangement for conveying a fluid
US8360743B2 (en) * 2009-01-23 2013-01-29 Randy Walters Rotary pressure production device
IT1395132B1 (en) * 2009-08-05 2012-09-05 Bosch Gmbh Robert HIGH PRESSURE PUMP
DE102010062159A1 (en) 2010-11-30 2012-05-31 Robert Bosch Gmbh high pressure pump
JP2012172537A (en) * 2011-02-18 2012-09-10 Denso Corp Fuel supply pump, and method of manufacturing fuel supply pump
JP5472340B2 (en) * 2012-02-10 2014-04-16 株式会社デンソー Fuel supply pump
HUE025332T2 (en) * 2012-04-25 2016-02-29 Delphi Int Operations Luxembourg Sarl High pressure fuel pump assembly
DE102012223348A1 (en) * 2012-12-17 2014-06-18 Robert Bosch Gmbh Tribosystem for a piston unit and thus equipped hydrostatic radial piston machine
CN103266973A (en) * 2013-05-31 2013-08-28 龙口龙泵燃油喷射有限公司 Radial high-pressure oil feed pump of high-speed diesel engine
US9567960B2 (en) 2014-03-25 2017-02-14 Cummins Inc. Fuel pump tappet assembly
US9835123B2 (en) 2015-01-13 2017-12-05 Roller Bearing Company Of America, Inc. Roller for a fuel pump actuator
GB201507709D0 (en) * 2015-05-06 2015-06-17 Delphi Internat Operations Luxembourg S � R L High pressure diesel fuel pumps and shoe guides
GB201514644D0 (en) * 2015-08-18 2015-09-30 Delphi Int Operations Lux Srl High pressure diesel fuel pumps
CN105298705B (en) * 2015-10-23 2017-11-24 北京航科发动机控制系统科技有限公司 A kind of method for ensureing that bearing and bushing fasten by dynamometry
GB2555595A (en) * 2016-11-02 2018-05-09 Delphi Int Operations Luxembourg Sarl Fuel pump and shoe guide
CN106709153B (en) * 2016-11-29 2019-08-09 中国农业大学 A kind of determination method of Forebay of Pumping Station sand rate
DE112021003722T5 (en) * 2020-09-24 2023-05-11 Cummins Inc. Pump body with undercut for bump clearance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054321A (en) * 1996-08-08 1998-02-24 Toyota Motor Corp Roller bush for fuel injection pump
US5775203A (en) * 1997-01-28 1998-07-07 Cummins Engine Company, Inc. High pressure fuel pump assembly
DE19729793A1 (en) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Piston pump for high-pressure fuel supply
WO1999047810A1 (en) * 1998-03-19 1999-09-23 Sumitomo Electric Industries, Ltd. Combination of shim and cam
GB0100667D0 (en) * 2001-01-10 2001-02-21 Delphi Tech Inc Fuel pump
DE10200792A1 (en) * 2002-01-11 2003-07-31 Bosch Gmbh Robert Fuel pump for an internal combustion engine
DE10355027A1 (en) * 2003-11-25 2005-06-23 Robert Bosch Gmbh High-pressure pump, in particular for a fuel injection device of an internal combustion engine

Also Published As

Publication number Publication date
GB0519680D0 (en) 2005-11-02
EP1767772A1 (en) 2007-03-28
DE602006008396D1 (en) 2009-09-24
JP2007092754A (en) 2007-04-12
US20070071622A1 (en) 2007-03-29
EP1767772B1 (en) 2009-08-12

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Legal Events

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