WO2012059623A3 - Injection pump - Google Patents

Injection pump Download PDF

Info

Publication number
WO2012059623A3
WO2012059623A3 PCT/FI2011/050815 FI2011050815W WO2012059623A3 WO 2012059623 A3 WO2012059623 A3 WO 2012059623A3 FI 2011050815 W FI2011050815 W FI 2011050815W WO 2012059623 A3 WO2012059623 A3 WO 2012059623A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
fluid chamber
chamber
communication
plunger
Prior art date
Application number
PCT/FI2011/050815
Other languages
French (fr)
Other versions
WO2012059623A2 (en
Inventor
Håkan NYNÄS
Gösta Liljenfeldt
Original Assignee
Wärtsilä Finland Oy
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 Wärtsilä Finland Oy filed Critical Wärtsilä Finland Oy
Priority to KR1020137014444A priority Critical patent/KR101692231B1/en
Priority to CN201180052175.1A priority patent/CN103228903B/en
Priority to EP11770842.0A priority patent/EP2635796B1/en
Publication of WO2012059623A2 publication Critical patent/WO2012059623A2/en
Publication of WO2012059623A3 publication Critical patent/WO2012059623A3/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
    • 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
    • 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
    • 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
    • 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
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the piston
    • 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
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/28—Mechanisms therefor

Landscapes

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

Abstract

An injection pump (1) for an internal combustion engine, comprising a pump body (2), a first fluid chamber (15) and a second fluid chamber (16) inside the pump body (2) in mutual fluid communication, a first reciprocating plunger (3) protruding into the first fluid chamber (15), a second plunger (4) at least partly inside the second fluid chamber (16), a first fluid port (11) in fluid communication with the first fluid chamber (15)and a second fluid port (12) influid communication with the second fluid chamber (16).A fluid supply channel (10)isin fluid communication with the first fluid chamber (15) and/or the second fluid chamber (16) via the first fluid port (11) and/or the second fluid port (12), and a fluid outlet (14) is in fluid communication with the first fluid chamber (15) and/or the second fluid chamber (16). The first plunger (3) and the second plunger (4) have different diameters.
PCT/FI2011/050815 2010-11-05 2011-09-22 Injection pump WO2012059623A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020137014444A KR101692231B1 (en) 2010-11-05 2011-09-22 Injection pump
CN201180052175.1A CN103228903B (en) 2010-11-05 2011-09-22 jet pump
EP11770842.0A EP2635796B1 (en) 2010-11-05 2011-09-22 Injection pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20106161 2010-11-05
FI20106161A FI20106161A (en) 2010-11-05 2010-11-05 injection Pump

Publications (2)

Publication Number Publication Date
WO2012059623A2 WO2012059623A2 (en) 2012-05-10
WO2012059623A3 true WO2012059623A3 (en) 2012-10-04

Family

ID=43268942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2011/050815 WO2012059623A2 (en) 2010-11-05 2011-09-22 Injection pump

Country Status (5)

Country Link
EP (1) EP2635796B1 (en)
KR (1) KR101692231B1 (en)
CN (1) CN103228903B (en)
FI (1) FI20106161A (en)
WO (1) WO2012059623A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6102767B2 (en) * 2014-01-24 2017-03-29 株式会社デンソー High pressure fuel pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR693493A (en) * 1930-04-07 1930-11-20 Usines De La Chaleassiere Soc Fuel pump for internal combustion and mechanical injection engines
DE517868C (en) * 1928-08-14 1931-02-12 Michael Sedlmeir Dipl Ing Method and device for regulating the delivery rate of fuel pumps
US2001843A (en) * 1933-05-12 1935-05-21 D C E Dev Company Fuel injection system for internal combustion engines
DE881887C (en) * 1941-08-29 1953-07-06 Versuchsanstalt Fuer Luftfahrt Injection pump with two or more cylinders working together
DE3732003A1 (en) * 1987-09-23 1989-04-06 Dahlmann Gerd Uwe Injection device
JP2010144652A (en) * 2008-12-19 2010-07-01 Nippon Soken Inc High pressure variable capacity pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1380547A (en) * 1963-09-25 1964-12-04 Method and device for injecting liquid fuel into an internal combustion engine
JPH0754617Y2 (en) * 1989-08-01 1995-12-18 株式会社小松製作所 Diesel engine fuel injector
FI945679A0 (en) 1994-12-01 1994-12-01 Waertsilae Nsd Oy Ab Foerbaettrat foerfarande Foer insprutning av ett tryckmedium i cylindern vid en foerbraenningsmotor samt arrangemang Foer tillaempning av foerfarandet
CN1490516A (en) * 2003-09-08 2004-04-21 梁剑锐 Hydraulic dual-control speed increasing short-time oil blooming system and on-line fuel oil emulsification

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE517868C (en) * 1928-08-14 1931-02-12 Michael Sedlmeir Dipl Ing Method and device for regulating the delivery rate of fuel pumps
FR693493A (en) * 1930-04-07 1930-11-20 Usines De La Chaleassiere Soc Fuel pump for internal combustion and mechanical injection engines
US2001843A (en) * 1933-05-12 1935-05-21 D C E Dev Company Fuel injection system for internal combustion engines
DE881887C (en) * 1941-08-29 1953-07-06 Versuchsanstalt Fuer Luftfahrt Injection pump with two or more cylinders working together
DE3732003A1 (en) * 1987-09-23 1989-04-06 Dahlmann Gerd Uwe Injection device
JP2010144652A (en) * 2008-12-19 2010-07-01 Nippon Soken Inc High pressure variable capacity pump

Also Published As

Publication number Publication date
EP2635796B1 (en) 2015-08-26
FI20106161A (en) 2012-05-06
KR20130103768A (en) 2013-09-24
KR101692231B1 (en) 2017-01-03
CN103228903A (en) 2013-07-31
EP2635796A2 (en) 2013-09-11
CN103228903B (en) 2015-12-16
FI20106161A0 (en) 2010-11-05
WO2012059623A2 (en) 2012-05-10

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