EP0971123A3 - Fuel injection pump - Google Patents

Fuel injection pump Download PDF

Info

Publication number
EP0971123A3
EP0971123A3 EP99113205A EP99113205A EP0971123A3 EP 0971123 A3 EP0971123 A3 EP 0971123A3 EP 99113205 A EP99113205 A EP 99113205A EP 99113205 A EP99113205 A EP 99113205A EP 0971123 A3 EP0971123 A3 EP 0971123A3
Authority
EP
European Patent Office
Prior art keywords
duct
fuel
piston
high pressure
timing
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
EP99113205A
Other languages
German (de)
French (fr)
Other versions
EP0971123A2 (en
EP0971123B1 (en
Inventor
Rolf Prillwitz
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.)
LOrange GmbH
Original Assignee
LOrange GmbH
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 LOrange GmbH filed Critical LOrange GmbH
Publication of EP0971123A2 publication Critical patent/EP0971123A2/en
Publication of EP0971123A3 publication Critical patent/EP0971123A3/en
Application granted granted Critical
Publication of EP0971123B1 publication Critical patent/EP0971123B1/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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/001—Pumps with means for preventing erosion on fuel discharge

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 high pressure fuel pump for an IC engine, e.g. for a diesel engine, has a piston (2) driven by a camshaft and with its upper end (5) bounded by the high pressure chamber (3). A duct through the piston links input control ducts (4a,4b) to control the timing of the fuel pulses. The duct has an upper edge (6) and a sloping lower edge (7a) to define the start and closing points of the fuel timing. The rotational setting of the piston varies the closing setting of the pump. A bypass duct (20) provides a controlled bypass flow at the bottom of the sloping duct to provide a controlled termination of the fuel pulse, and hence a reduction in cavitation.
EP99113205A 1998-07-10 1999-07-08 Fuel injection pump Expired - Lifetime EP0971123B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19831078 1998-07-10
DE19831078A DE19831078A1 (en) 1998-07-10 1998-07-10 Fuel injection pump

Publications (3)

Publication Number Publication Date
EP0971123A2 EP0971123A2 (en) 2000-01-12
EP0971123A3 true EP0971123A3 (en) 2001-04-18
EP0971123B1 EP0971123B1 (en) 2003-05-07

Family

ID=7873708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99113205A Expired - Lifetime EP0971123B1 (en) 1998-07-10 1999-07-08 Fuel injection pump

Country Status (3)

Country Link
EP (1) EP0971123B1 (en)
AT (1) ATE239868T1 (en)
DE (2) DE19831078A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163693A1 (en) 2001-12-21 2003-07-10 Orange Gmbh Injection injector for internal combustion engines
EP1505294B1 (en) * 2003-08-07 2007-01-24 Delphi Technologies, Inc. Pump assembly
ITBO20040322A1 (en) 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa METHOD AND SYSTEM FOR DIRECT FUEL INJECTION INTO AN INTERNAL COMBUSTION ENGINE
KR101400580B1 (en) * 2010-01-15 2014-07-01 현대중공업 주식회사 Injection Device for Fuel Injectiojn Pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677256A (en) * 1969-11-20 1972-07-18 Peugeot Fuel injection device for an internal combustion engine
US4163634A (en) * 1977-11-25 1979-08-07 Caterpillar Tractor Co. Fuel pump plunger
DE3347430A1 (en) * 1983-12-29 1985-07-11 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
EP0270519A1 (en) * 1986-11-21 1988-06-08 Robert Bosch Ag Pump element of a fuel injection pump for an injection combustion engine
DE3804843A1 (en) * 1988-02-17 1989-08-31 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
DE4002557A1 (en) * 1990-01-30 1991-08-08 Orange Gmbh HIGH PRESSURE PISTON PUMP
DE4006899A1 (en) * 1990-03-06 1991-09-12 Mak Maschinenbau Krupp Piston for fuel injection pump - has increased radial clearance over end region to eliminate cavitation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304084C2 (en) 1993-02-11 1995-03-09 Orange Gmbh Injection pump element with sloping control edges

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677256A (en) * 1969-11-20 1972-07-18 Peugeot Fuel injection device for an internal combustion engine
US4163634A (en) * 1977-11-25 1979-08-07 Caterpillar Tractor Co. Fuel pump plunger
DE3347430A1 (en) * 1983-12-29 1985-07-11 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
EP0270519A1 (en) * 1986-11-21 1988-06-08 Robert Bosch Ag Pump element of a fuel injection pump for an injection combustion engine
DE3804843A1 (en) * 1988-02-17 1989-08-31 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
DE4002557A1 (en) * 1990-01-30 1991-08-08 Orange Gmbh HIGH PRESSURE PISTON PUMP
DE4006899A1 (en) * 1990-03-06 1991-09-12 Mak Maschinenbau Krupp Piston for fuel injection pump - has increased radial clearance over end region to eliminate cavitation

Also Published As

Publication number Publication date
DE19831078A1 (en) 2000-01-13
EP0971123A2 (en) 2000-01-12
ATE239868T1 (en) 2003-05-15
EP0971123B1 (en) 2003-05-07
DE59905415D1 (en) 2003-06-12

Similar Documents

Publication Publication Date Title
EP0894965A4 (en) Method and device for fuel injection of engine
EP0964150A3 (en) Fuel injection system for internal combustion engine
EP0854280A4 (en) Control device for an internal combustion engine
WO1998011334A3 (en) A hydraulically controlled camless valve system for an internal combustion engine
EP0777042A4 (en) Fuel injection control apparatus for cylinder injection type internal combustion engines
EP1070838A3 (en) Method of reducing nitrogen oxide (NOx) emissions of piston engine
DE59506715D1 (en) Fuel injection valve for internal combustion engines
DE69617647T2 (en) FUEL INJECTION DEVICE
ATE79924T1 (en) FUEL INJECTOR.
FI111981B (en) Method for injecting fuel into a combustion engine combustion engine combustion chamber
ES2171038T3 (en) FUEL INJECTION DEVICE FOR DIESEL ENGINES.
EP1582724A3 (en) Method and apparatus for controlling combustion timing in an homogenous charge compression-ignition engine
WO2003016697A1 (en) Fuel injection quantity controlling method and device
BR0009086A (en) Injection pump set for liquid fuel for an internal combustion engine, and damping valve set
EP0971123A3 (en) Fuel injection pump
EP0860606A3 (en) Arrangement for an injection pump in an internal combustion engine
EP0971122A3 (en) Fuel injection pump for an internal combustion engine
FI102314B1 (en) Device for controlling the flow of hydraulic pressure medium, in particular for injecting fuel into an internal combustion piston engine
KR890001713B1 (en) Multistage fuel injection system
ATE214125T1 (en) DEVICE FOR ADJUSTING A CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE
JPH10220303A (en) Fuel gas injector for spark ignition type gas engine
KR880012889A (en) Fuel injection method and device
KR100201006B1 (en) Electronic fuel injection control device
GEP19960622B (en) Fuel-injection device and method of its operation
JPS5459523A (en) Fuel injection pump controller

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7F 02M 59/26 A, 7F 02M 55/00 B

17P Request for examination filed

Effective date: 20010517

AKX Designation fees paid

Free format text: AT CH DE GB IT LI

17Q First examination report despatched

Effective date: 20020201

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE GB IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

REF Corresponds to:

Ref document number: 59905415

Country of ref document: DE

Date of ref document: 20030612

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030805

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040210

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070719

Year of fee payment: 9

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070713

Year of fee payment: 9

Ref country code: AT

Payment date: 20070716

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070720

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070725

Year of fee payment: 9

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090203

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080708

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080708