EP1042609A1 - Kraftstoffeinspritzventil für brennkraftmaschinen - Google Patents
Kraftstoffeinspritzventil für brennkraftmaschinenInfo
- Publication number
- EP1042609A1 EP1042609A1 EP99936317A EP99936317A EP1042609A1 EP 1042609 A1 EP1042609 A1 EP 1042609A1 EP 99936317 A EP99936317 A EP 99936317A EP 99936317 A EP99936317 A EP 99936317A EP 1042609 A1 EP1042609 A1 EP 1042609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing ring
- fuel injection
- injection valve
- internal combustion
- valve body
- 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
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
- 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
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
Definitions
- the invention relates to a fuel injection valve for internal combustion engines according to the preamble of claim 1.
- Such a fuel injection valve can be seen, for example, from DE 19 605 956 AI.
- the sealing ring is fastened on the valve body by means of a frictional engagement, this frictional engagement preferably being built up only in partial regions which are symmetrical about the Scope are distributed. These subregions are, in particular, three radially inward projections on the inner wall surface of the sealing ring, the cross section of which is reduced compared to the sealing ring thickness.
- the sealing ring holds by pressing.
- the sealing ring now consists of a very soft material, in particular copper, it cannot be ruled out that the inward-projecting projections will at least partially be ground off when they are applied to the stem part of the valve body and thus only cause a small clamping. Because of this small clamping, the sealing ring can undesirably detach from the stem part of the valve body.
- the object of the invention is therefore to develop a fuel injection valve for internal combustion engines of the generic type such that the sealing ring on the one hand can be easily applied to the stem part of the valve body and can be secured thereon in such a way that unintentional loosening of the sealing ring from the stem part is practically no longer possible can occur.
- the sealing ring has a central opening which can be deformed in a defined manner after being pushed over the stem part of the valve member.
- Such a design of the sealing ring has the advantage that it can easily be pushed over the valve stem due to the central circular opening and then with one Press tool is deformable so that it flows at the points of deformation towards the stem part of the valve member, is pressed into the ground surface of the stem part and is thus held firmly and captively on it.
- the sealing ring is deformed only on partial areas of its inner wall surface of the central circular opening, the partial areas preferably being uniformly distributed over the circumference.
- a particularly advantageous embodiment provides that the sealing ring is preferably deformed at three points distributed equally over the circumference.
- the sealing ring is advantageously made of a softer material than the valve body, preferably of copper.
- the fastening of the sealing ring on the stem part of a fuel injection valve of the type described above is advantageously carried out by deforming the sealing ring after pushing it over the stem part with a pressing tool in such a way that a material flow to the stem part occurs.
- Fig. 1 partially cut and broken away the lower part of a fuel injector with the sealing ring and pushed
- Fig. 2 is an end view of a sealing ring and schematically various molds for targeted deformation of the sealing ring.
- a fuel injection valve for internal combustion engines shown in an enlarged section in FIG. 1 has a cylindrical valve body, the outside diameter of which is reduced to form a ring shoulder, with a reduced-diameter stem part 10 at its free end opening at least one into the combustion chamber of the internal combustion engine, which is not shown in detail Injection opening 12 has.
- the valve body is by means of a ring shoulder 5 attacking clamping nut 20 axially braced at its end facing away from the injection opening 12 against a holding body 11 (not shown).
- This holding body has a connecting piece for an injection line (not shown) to an injection pump and a pressure channel for supplying the fuel under high pressure to the injection valve, as is apparent from DE 19 605 956 AI, to which reference is made in full in the present context.
- the valve member is axially guided in the valve body in a manner known per se, it opens and closes an opening cross section in the injection valve due to its lifting movement.
- the injection valve is inserted into a stepped receiving bore 30 in the housing 32 (cylinder head) of the internal combustion engine to be supplied with fuel, the area of which has a reduced diameter that opens into the combustion chamber of the internal combustion engine.
- a sealing ring 40 is clamped between an annular end face 22 of the clamping nut 20 and a housing shoulder 34 formed at the cross-sectional transition of the receiving bore 30, which is guided on the stem 10 of the valve body.
- This sealing ring 40 shown in plan view in FIG. 2 and preferably made of copper, has a central circular opening 42, preferably a bore, which is slightly larger than the outer diameter of the stem part 10 of the valve body. In this way, the sealing ring 40 can be easily pushed over the stem part 10 of the valve body with little play.
- the sealing ring 40 After the sealing ring 40 has been pushed onto the shaft part 10 of the preassembled injection valve until it abuts the ring end face 22 of the clamping nut 20, it is deformed in a defined manner by means of a pressing tool. As in Fig. 2, it is preferably deformed at three locations equally distributed over the circumference, the press molds shown in FIG. 2 being conceivable.
- the sealing ring 40 Due to the defined deformation of the sealing ring 40, the copper begins to flow slightly at the points of the deformation in the direction of the stem part 10 of the valve body and is pressed into the ground surface of the stem part 10, as a result of which the sealing ring 40 is held.
- the advantage of this sealing ring and the method of its assembly is that the sealing ring is not subjected to any mechanical stresses when it is pushed onto the shaft part 10, and in this respect there are no signs of wear.
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
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19834475A DE19834475A1 (de) | 1998-07-31 | 1998-07-31 | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE19834475 | 1998-07-31 | ||
PCT/DE1999/001543 WO2000008332A1 (de) | 1998-07-31 | 1999-05-26 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042609A1 true EP1042609A1 (de) | 2000-10-11 |
EP1042609B1 EP1042609B1 (de) | 2004-08-04 |
Family
ID=7875919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936317A Expired - Lifetime EP1042609B1 (de) | 1998-07-31 | 1999-05-26 | Kraftstoffeinspritzventil für brennkraftmaschinen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6230686B1 (de) |
EP (1) | EP1042609B1 (de) |
JP (1) | JP2002522694A (de) |
DE (2) | DE19834475A1 (de) |
WO (1) | WO2000008332A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10065437A1 (de) | 2000-12-27 | 2002-07-25 | Siemens Ag | Injektor für eine Brennkraftmaschine |
FR2893364A1 (fr) * | 2005-11-15 | 2007-05-18 | Renault Sas | Injecteur de carburant dans un moteur diesel et moteur diesel pourvu de tels injecteurs |
DE102008059117B4 (de) * | 2008-11-26 | 2011-07-28 | Continental Automotive GmbH, 30165 | Hochdruckpumpenanordnung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3038456A (en) * | 1961-01-27 | 1962-06-12 | Allis Chalmers Mfg Co | Self-locking nozzle gasket |
FR1408264A (fr) * | 1964-06-30 | 1965-08-13 | Simca Ind | Joint d'étanchéité pour injecteurs notamment pour moteurs à combustion interne |
US3382851A (en) * | 1966-04-26 | 1968-05-14 | Bosch Arma Corp | Fuel injection nozzle assembly |
US4133321A (en) * | 1972-12-21 | 1979-01-09 | Robert Bosch Gmbh | Clamping device for fuel injection nozzles |
DE3000061C2 (de) * | 1980-01-03 | 1993-10-14 | Bosch Gmbh Robert | Kraftstoffeinspritzdüse für Brennkraftmaschinen |
US4528959A (en) * | 1984-01-23 | 1985-07-16 | Deere & Company | Seal for an internal combustion engine |
FR2659115B1 (fr) * | 1990-03-02 | 1992-05-15 | Procal | Joint d'etancheite pour injecteur de moteur a combustion interne. |
DE4240514A1 (de) * | 1992-12-02 | 1994-06-09 | Kloeckner Humboldt Deutz Ag | Einspritzventil mit verliersicherer Dichtscheibe |
DE19605956A1 (de) * | 1996-02-17 | 1997-08-21 | Bosch Gmbh Robert | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE19838755B4 (de) * | 1998-08-26 | 2006-11-09 | Daimlerchrysler Ag | Auf den Brennraum einer Brennkraftmaschine einspritzende Kraftstoffeinspritzdüse |
-
1998
- 1998-07-31 DE DE19834475A patent/DE19834475A1/de not_active Withdrawn
-
1999
- 1999-05-26 JP JP2000563938A patent/JP2002522694A/ja active Pending
- 1999-05-26 WO PCT/DE1999/001543 patent/WO2000008332A1/de active IP Right Grant
- 1999-05-26 US US09/509,771 patent/US6230686B1/en not_active Expired - Lifetime
- 1999-05-26 DE DE59910133T patent/DE59910133D1/de not_active Expired - Lifetime
- 1999-05-26 EP EP99936317A patent/EP1042609B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0008332A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1042609B1 (de) | 2004-08-04 |
DE19834475A1 (de) | 2000-02-03 |
WO2000008332A1 (de) | 2000-02-17 |
US6230686B1 (en) | 2001-05-15 |
DE59910133D1 (de) | 2004-09-09 |
JP2002522694A (ja) | 2002-07-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69711133T2 (de) | Kopfzylinder für Brennkraftmaschine | |
DE102006060330A1 (de) | Einsatz für eine Zylinderlaufbuchse oder einem Zylinder eines Verbrennungsmotors | |
DE19857485A1 (de) | Montagevorrichtung zur Montage und Demontage eines Brennstoffeinspritzventils | |
DE69107405T2 (de) | Hochdruck-Dichtungssystem für das Steuerventil eines elektromagnetischen Brennstoffeinspritzventils für Verbrennungsmotoren. | |
EP1066460A2 (de) | Druckventil | |
DE19941930A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
WO1999028617A1 (de) | Kraftstoffzuleitungseinrichtung | |
EP3945206A1 (de) | Injektorverpratzung | |
EP0704022B1 (de) | Kraftstoffeinspritzdüse für brennkraftmaschinen | |
DE19536330A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
DE19605956A1 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
EP0890734B2 (de) | Kraftstoffeinspritzventil | |
DE102004036626A1 (de) | Brennstoffeinspritzsystem | |
DE10247958A1 (de) | Kraftstoff-Einspritzvorrichtung für eine Brennkraftmaschine | |
WO2000001936A2 (de) | Druckventil | |
EP1042609B1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen | |
DE19609218B4 (de) | Kraftstoffeinspritzventil für Brennkraftmaschinen | |
DE19908154B4 (de) | Spannelement | |
DE10108201A1 (de) | Spannbaugruppe | |
DE10321163B4 (de) | Verfahren zum Anbringen eines metallischen Dichtelements an einem Grundkörper eines Brennstoffeinspritzventils, sowie Brennstoffeinspritzventil | |
DE3902518A1 (de) | Ventilschaftabdichtung | |
WO2008107225A1 (de) | Abdichtelemente für kraftstoffinjektoren | |
EP0977945A1 (de) | Kraftstoffeinspritzventil für brennkraftmaschinen | |
DE3325015C1 (de) | Dichtungsring | |
DE2716319A1 (de) | Verfahren zum bilden einer dichtung bei einspritzeinrichtungen |
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: A1 Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 20000817 |
|
17Q | First examination report despatched |
Effective date: 20030526 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
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 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59910133 Country of ref document: DE Date of ref document: 20040909 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20041129 |
|
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 |
|
ET | Fr: translation filed | ||
26N | No opposition filed |
Effective date: 20050506 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130522 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20130604 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130723 Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59910133 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140526 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150130 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59910133 Country of ref document: DE Effective date: 20141202 |
|
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: 20141202 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20140526 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140602 |