EP1108886A2 - Systeme d'injection de carburant avec un common rail - Google Patents

Systeme d'injection de carburant avec un common rail Download PDF

Info

Publication number: EP1108886A2
Authority: EP; European Patent Office
Prior art keywords: rail; cylinder head; pressure pipe; injector; claw
Prior art date: 1999-12-15
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)

English (en)

Other versions

EP1108886B1 (fr

EP1108886A3 (fr

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.)

1999-12-15

Filing date

2000-11-14

Publication date

2001-06-20

2000-11-14 Application filed by MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG

2001-06-20 Publication of EP1108886A2 publication Critical patent/EP1108886A2/fr

2003-11-26 Publication of EP1108886A3 publication Critical patent/EP1108886A3/fr

2005-01-19 Application granted granted Critical

2005-01-19 Publication of EP1108886B1 publication Critical patent/EP1108886B1/fr

2020-11-14 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

the invention relates to a common rail injection system according to the generic term of claim 1.
a common rail injection system is known from DE 197 54 132 A1, in which an injector located in the cylinder axis centrally in the cylinder head.
the connection the injector with the fuel-carrying rail is manufactured using a pressure pipe, which is arranged in a bore lying transversely in the cylinder head.
the Pressure pipe has sealing surfaces on both ends by means of a claw and a screw in the cylinder head can be kept under tension.
the claw itself has a hole and is connected to the rail by a screw connection.
the screw connection has a right and a ends left-handed thread.
the invention has for its object the connection of common rail and injector with as few components as possible and as easy to assemble as possible.
the task is on the one hand by the characterizing features of the claim 1 solved.
the structural unity of the rail and the claw means that fewer parts are required and that Assembly easier.
the fuel takes the shortest route and is straight to the injector, causing reflections of pressure waves at deflections and the like be avoided.
FIG. 1 shows a side view of a cylinder head 1.
a rail 2 is attached to this directly attached with screws 3 and 4 claws.
the claws 4 assigned to each injector 5 with the rail 3 form a structural unit, for example a forged part. This is described in more detail in FIG. 2.
Figure 2 shows a section II-II of Figure 3.
the injector 5 is located in a bore of the cylinder head 1.
a flow limiter 7, which inserts with thread 8 Rail 2 is screwed in.
the rail 2 is directly on the cylinder head 1 with a screw 3 attached.
the attachment serve each injector 5 (Fig. 1) a claw 4 with the Rail 2 is combined into a structural unit.
Rail 2 and the claws 4 can advantageously be designed as a forged part.
FIG. 3 shows a top view of part of the cylinder head 1.
the rail 2 is per injector 5 directly attached to the cylinder head 1 by means of screw 3 and claw 4.
the Fuel is supplied from the rail 2 to the injector through the pressure pipe 6 (FIG. 2), which is only indicated here by a dashed line.
FIG. 4 An end view is shown in FIG. 4.
the rail 2 forms a structural one with the claw 4 Unit that is attached to cylinder head 1 with screw 3.
the structural unit of Rail 2 and the claws 4 means a lot of assembly work saved and the fuel goes from Rail 2 to the injectors in the shortest possible way 5.
the Rail 2 can also be used with single claws 4 am Cylinder head to be attached. An advantage of this attachment can be seen in this be that the rail 2 can remain unchanged.

Landscapes

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

EP00124776A 1999-12-15 2000-11-14 Systeme d'injection de carburant avec un common rail Expired - Lifetime EP1108886B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19960480A DE19960480A1 (de)	1999-12-15	1999-12-15	Common Rail Einspritzsystem
DE19960480		1999-12-15

Publications (3)

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

Family

ID=7932750

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00124776A Expired - Lifetime EP1108886B1 (fr)	1999-12-15	2000-11-14	Systeme d'injection de carburant avec un common rail

Country Status (2)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2009033304A1 (fr)	2007-09-13	2009-03-19	Ganser-Hydromag Ag	Dispositif d'injection de carburant
WO2009058283A1 (fr) *	2007-10-29	2009-05-07	Caterpillar Inc.	Système de carburant pourvu d'un raccordement de tube creux monobloc
EP2060776A1 (fr) *	2007-11-13	2009-05-20	Delphi Technologies, Inc.	Lance de carburant
AT527267A1 (de) *	2023-10-09	2024-11-15	Avl List Gmbh	Brennkraftmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19754132A1 (de)	1997-12-05	1999-06-10	Man Nutzfahrzeuge Ag	Common Rail Einspritzsystem für Brennkraftmaschinen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4539959A (en) *	1984-02-27	1985-09-10	General Motors Corporation	Fuel injection system with fuel flow limiting valve assembly
JP3371620B2 (ja) *	1995-05-29	2003-01-27	いすゞ自動車株式会社	コモンレール式燃料噴射装置
DE19640480B4 (de) *	1996-09-30	2004-04-22	Robert Bosch Gmbh	Kraftstoffhochdruckspeicher

1999
- 1999-12-15 DE DE19960480A patent/DE19960480A1/de not_active Withdrawn
2000
- 2000-11-14 DE DE50009273T patent/DE50009273D1/de not_active Expired - Lifetime
- 2000-11-14 EP EP00124776A patent/EP1108886B1/fr not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19754132A1 (de)	1997-12-05	1999-06-10	Man Nutzfahrzeuge Ag	Common Rail Einspritzsystem für Brennkraftmaschinen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2009033304A1 (fr)	2007-09-13	2009-03-19	Ganser-Hydromag Ag	Dispositif d'injection de carburant
US8336524B2 (en)	2007-09-13	2012-12-25	Ganser-Hydromag Ag	Fuel injection device
WO2009058283A1 (fr) *	2007-10-29	2009-05-07	Caterpillar Inc.	Système de carburant pourvu d'un raccordement de tube creux monobloc
EP2060776A1 (fr) *	2007-11-13	2009-05-20	Delphi Technologies, Inc.	Lance de carburant
JP2009138738A (ja) *	2007-11-13	2009-06-25	Delphi Technologies Inc	燃料ランス及びアッセンブリ
EP2060775A3 (fr) *	2007-11-13	2009-11-11	Delphi Technologies, Inc.	Lance de carburant et ensemble
US7958870B2 (en)	2007-11-13	2011-06-14	Delphi Technologies Holdings S.arl	Fuel lance and assembly
JP2011127612A (ja) *	2007-11-13	2011-06-30	Delphi Technologies Holding Sarl	燃料ランス及びアッセンブリ
AT527267A1 (de) *	2023-10-09	2024-11-15	Avl List Gmbh	Brennkraftmaschine

Also Published As

Publication number	Publication date
EP1108886B1 (fr)	2005-01-19
EP1108886A3 (fr)	2003-11-26
DE50009273D1 (de)	2005-02-24
DE19960480A1 (de)	2001-06-21

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Publication	Publication Date	Title
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