ATE476592T1 - IMPROVEMENTS TO INJECTION ADJUSTMENT - Google Patents

IMPROVEMENTS TO INJECTION ADJUSTMENT

Info

Publication number
ATE476592T1
ATE476592T1 AT05256222T AT05256222T ATE476592T1 AT E476592 T1 ATE476592 T1 AT E476592T1 AT 05256222 T AT05256222 T AT 05256222T AT 05256222 T AT05256222 T AT 05256222T AT E476592 T1 ATE476592 T1 AT E476592T1
Authority
AT
Austria
Prior art keywords
piston
fuel
control chamber
advance
timing
Prior art date
Application number
AT05256222T
Other languages
German (de)
Inventor
Leslie Edwin Chapman
Rodney Dyason
Original Assignee
Delphi Tech Holding Sarl
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 Holding Sarl filed Critical Delphi Tech Holding Sarl
Application granted granted Critical
Publication of ATE476592T1 publication Critical patent/ATE476592T1/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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
    • F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
    • F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
    • F02M41/1416—Devices specially adapted for angular adjustment of annular cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/16—Adjustment of injection timing
    • F02D1/18—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse
    • F02D1/183—Adjustment of injection timing with non-mechanical means for transmitting control impulse; with amplification of control impulse hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Electrophonic Musical Instruments (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

An advance arrangement for use in controlling timing of fuel delivery by a fuel pump for use in an engine comprises an advance piston (12) which is slidable within a first bore (14) and which cooperates, in use, with a cam arrangement of a fuel pump to adjust the timing of fuel delivery by the pump. A surface associated with the advance piston (12) is exposed to fuel pressure within a first control chamber (38). The pressure of fuel within the first control chamber (38) is controlled by means of a servo piston (24) which is slidable within a further bore (22) provided in the advance piston (12). The servo piston (24) is responsive to speed dependent fuel pressure variations within a servo control chamber (37), thereby to permit adjustment of the timing in response to engine speed. A light load piston (26) is moveable relative to the advance piston (12) against the action of a light load control spring (28) in response to load dependent fuel pressure variations within a light load control chamber (60), thereby to adjust the timing under light load conditions.
AT05256222T 2005-10-05 2005-10-05 IMPROVEMENTS TO INJECTION ADJUSTMENT ATE476592T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05256222A EP1772609B1 (en) 2005-10-05 2005-10-05 Improvements to advance arrangement

Publications (1)

Publication Number Publication Date
ATE476592T1 true ATE476592T1 (en) 2010-08-15

Family

ID=36061321

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05256222T ATE476592T1 (en) 2005-10-05 2005-10-05 IMPROVEMENTS TO INJECTION ADJUSTMENT

Country Status (4)

Country Link
EP (1) EP1772609B1 (en)
JP (1) JP2007100703A (en)
AT (1) ATE476592T1 (en)
DE (1) DE602005022723D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5493953B2 (en) * 2010-02-09 2014-05-14 株式会社Ｉｈｉ Differential pressure sensing valve and fuel flow control device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5649237U (en) * 1979-09-25 1981-05-01
JPS5786533A (en) * 1980-11-15 1982-05-29 Diesel Kiki Co Ltd Regulating device of injection timing in distributor type fuel injection pump
JPS58161137U (en) * 1982-04-21 1983-10-27 マツダ株式会社 Fuel injection pump injection timing control device
JPH09195802A (en) * 1996-01-17 1997-07-29 Kubota Corp Mechanical auto-timer of diesel engine
GB9905339D0 (en) 1999-03-10 1999-04-28 Lucas Ind Plc Fuel injector pump advance arrangement
US6941932B2 (en) 2001-02-01 2005-09-13 Delphi Technologies, Inc. Advance arrangement

Also Published As

Publication number Publication date
EP1772609B1 (en) 2010-08-04
EP1772609A1 (en) 2007-04-11
DE602005022723D1 (en) 2010-09-16
JP2007100703A (en) 2007-04-19

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties