EP1108886A3 - Common rail fuel injection system - Google Patents

Common rail fuel injection system Download PDF

Info

Publication number
EP1108886A3
EP1108886A3 EP00124776A EP00124776A EP1108886A3 EP 1108886 A3 EP1108886 A3 EP 1108886A3 EP 00124776 A EP00124776 A EP 00124776A EP 00124776 A EP00124776 A EP 00124776A EP 1108886 A3 EP1108886 A3 EP 1108886A3
Authority
EP
European Patent Office
Prior art keywords
rail
injection system
common rail
claws
fuel injection
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
EP00124776A
Other languages
German (de)
French (fr)
Other versions
EP1108886A2 (en
EP1108886B1 (en
Inventor
Heribert Dipl.-Ing. Möller (FH)
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP1108886A2 publication Critical patent/EP1108886A2/en
Publication of EP1108886A3 publication Critical patent/EP1108886A3/en
Application granted granted Critical
Publication of EP1108886B1 publication Critical patent/EP1108886B1/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors

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

Die Erfindung bezieht sich auf ein Common Rail Einspritzsystem. Ein Common Rail Einspritzsystem besteht im wesentlichen aus einer Hochdruckpumpe, den Einspritzleitungen und den Injektoren. Um das Common Rail Einspritzsystem möglichst montagefreundlich zu gestalten wird erfindungsgemäß vorgeschlagen, die Einspritzleitungen durch ein einziges Rail 2 zu ersetzen und dieses Rail mittels Schrauben 3 und Pratzen 4 direkt am Zylinderkopf 1 zu befestigen. Die Pratzen 4 bilden mit dem Rail 2 eine bauliche Einheit. Diese Einheit kann mittels der Schrauben 3 zur Abdichtung gegen ein Druckrohr 6 gepreßt werden. Zwischen Rail 2 und Druckrohr 6 kann noch ein Durchflußbegrenzer 7 vorgesehen sein. Durch die bauliche Einheit von Rail 2 und den Pratzen 4 ergibt sich eine äußerst günstige Montagemöglichkeit ( Fig. 2 ) .

Figure 00000001
The invention relates to a common rail injection system. A common rail injection system essentially consists of a high pressure pump, the injection lines and the injectors. In order to make the common rail injection system as easy to install as possible, it is proposed according to the invention to replace the injection lines with a single rail 2 and to fasten this rail directly to the cylinder head 1 by means of screws 3 and claws 4. The claws 4 form a structural unit with the rail 2. This unit can be pressed against a pressure pipe 6 by means of the screws 3 for sealing. A flow limiter 7 can also be provided between rail 2 and pressure pipe 6. The structural unit of rail 2 and the claws 4 results in an extremely favorable mounting option (FIG. 2).
Figure 00000001
EP00124776A 1999-12-15 2000-11-14 Common rail fuel injection system Expired - Lifetime EP1108886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960480A DE19960480A1 (en) 1999-12-15 1999-12-15 Common rail injection system
DE19960480 1999-12-15

Publications (3)

Publication Number Publication Date
EP1108886A2 EP1108886A2 (en) 2001-06-20
EP1108886A3 true EP1108886A3 (en) 2003-11-26
EP1108886B1 EP1108886B1 (en) 2005-01-19

Family

ID=7932750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00124776A Expired - Lifetime EP1108886B1 (en) 1999-12-15 2000-11-14 Common rail fuel injection system

Country Status (2)

Country Link
EP (1) EP1108886B1 (en)
DE (2) DE19960480A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0816923A2 (en) 2007-09-13 2015-03-17 Ganser Hydromag Fuel injection device.
US7543567B2 (en) * 2007-10-29 2009-06-09 Caterpillar Inc. Fuel system having a one-piece hollow tube connection
EP2060776B1 (en) * 2007-11-13 2011-10-05 Delphi Technologies Holding S.à.r.l. Fuel lance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506963A1 (en) * 1984-02-27 1985-09-12 General Motors Corp., Detroit, Mich. FUEL INJECTION SYSTEM
JPH08319921A (en) * 1995-05-29 1996-12-03 Isuzu Motors Ltd Common rail type fuel injection device
DE19640480A1 (en) * 1996-09-30 1998-04-02 Bosch Gmbh Robert High pressure fuel accumulator
EP0921303A2 (en) * 1997-12-05 1999-06-09 Man Nutzfahrzeuge Ag Common rail fuel injection system for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506963A1 (en) * 1984-02-27 1985-09-12 General Motors Corp., Detroit, Mich. FUEL INJECTION SYSTEM
JPH08319921A (en) * 1995-05-29 1996-12-03 Isuzu Motors Ltd Common rail type fuel injection device
DE19640480A1 (en) * 1996-09-30 1998-04-02 Bosch Gmbh Robert High pressure fuel accumulator
EP0921303A2 (en) * 1997-12-05 1999-06-09 Man Nutzfahrzeuge Ag Common rail fuel injection system for internal combustion engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) *

Also Published As

Publication number Publication date
EP1108886A2 (en) 2001-06-20
EP1108886B1 (en) 2005-01-19
DE50009273D1 (en) 2005-02-24
DE19960480A1 (en) 2001-06-21

Similar Documents

Publication Publication Date Title
DE112006002586T5 (en) Fluid system with a manifold connected by lancing pipes
EP0915252A3 (en) Common rail fuel injection system
EP1298306A3 (en) Method of operating a combustion engine
EP1108886A3 (en) Common rail fuel injection system
EP1273797A3 (en) Fuel injection device
EP1076172A3 (en) Fuel distribution device for fuel injection system of internal combustion engines
EP1327768A3 (en) Fuel supply system
DE102011081534A1 (en) Injector for a fluid
EP1209349A3 (en) Fuel injection system with fuel preheating and fuel cooled pressure regulation valve
EP1422415A3 (en) Intake device for an internal combustion engine
EP1018598A3 (en) Fuel system
EP1031721A3 (en) Fuel pressure control device for high pressure fuel injection system
EP1054143A2 (en) Method for internal EGR in multicylinder combustion engines
DE102011087288A1 (en) Exhaust gas aftertreatment system and method for introducing a reducing agent into an exhaust passage of an internal combustion engine
EP1338787A1 (en) Hydraulic pressure relief system for a fuel injection apparatus
EP1260702A3 (en) A fuel injection system for an internal combustion engine
DE2501764A1 (en) Diesel engine fuel injection pump - has plunger with intermediate groove to produce pre-injection before main injection
WO2020053081A1 (en) Method for operating an internal combustion engine
DE10231616B4 (en) Fuel supply system for a motor vehicle driving an internal combustion engine
DE102016220037B4 (en) Pressure tapping device and motor vehicle with pressure tapping device and pressure tapping method
DE102018209949A1 (en) Water injection device for an internal combustion engine and method for water injection
DE2613607A1 (en) MULTICYLINDER ENGINE EXHAUST SYSTEM WITH TWO SEPARATE EXHAUST PIPES
EP1425509B1 (en) Positioning element
EP2787214A1 (en) Fuel pump system
CN220036821U (en) Porous stainless steel oil pipe

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 BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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 TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20031212

17Q First examination report despatched

Effective date: 20040123

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): DE FR GB IT NL SE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL SE

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: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50009273

Country of ref document: DE

Date of ref document: 20050224

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

Effective date: 20050422

ET Fr: translation filed
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: 20051020

REG Reference to a national code

Ref country code: NL

Ref legal event code: TD

Effective date: 20110304

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50009273

Country of ref document: DE

Owner name: MAN TRUCK & BUS AG, DE

Free format text: FORMER OWNER: MAN NUTZFAHRZEUGE AG, 80995 MUENCHEN, DE

Effective date: 20110406

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50009273

Country of ref document: DE

Owner name: MAN TRUCK & BUS SE, DE

Free format text: FORMER OWNER: MAN TRUCK & BUS AG, 80995 MUENCHEN, DE

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

Ref country code: NL

Payment date: 20191127

Year of fee payment: 20

Ref country code: SE

Payment date: 20191125

Year of fee payment: 20

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

Ref country code: FR

Payment date: 20191127

Year of fee payment: 20

Ref country code: IT

Payment date: 20191122

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20191128

Year of fee payment: 20

Ref country code: DE

Payment date: 20200130

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50009273

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20201113

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20201113

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20201113