EP1334274A1 - Dichtelement zum anordnen zwischen einem injektor und einem zylinderkopf und injektor und zylinderkopf mit einem solchen dichtelement - Google Patents
Dichtelement zum anordnen zwischen einem injektor und einem zylinderkopf und injektor und zylinderkopf mit einem solchen dichtelementInfo
- Publication number
- EP1334274A1 EP1334274A1 EP01993760A EP01993760A EP1334274A1 EP 1334274 A1 EP1334274 A1 EP 1334274A1 EP 01993760 A EP01993760 A EP 01993760A EP 01993760 A EP01993760 A EP 01993760A EP 1334274 A1 EP1334274 A1 EP 1334274A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- injector
- sealing element
- cylinder head
- clamping wire
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 119
- 239000013013 elastic material Substances 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- Sealing element for arrangement between an injector and a cylinder head and injector and cylinder head with such a sealing element
- the invention relates to a sealing element for arrangement between an injector and a cylinder head.
- the invention further relates to an injector and a cylinder head with such a sealing element.
- An injector which is arranged in an opening of a cylinder head, is usually provided in a fuel injection system.
- the injector is used to inject fuel into a combustion chamber located in the cylinder head.
- Injector has a valve stem, the top of which should be very precisely adjustable in the combustion chamber.
- An upper part of the injector which has a larger cross section than the valve stem, adjoins the valve stem.
- the upper part of the injector and the valve stem form a step which is seated on a circumferential top surface of the cylinder head arranged in the opening.
- a sealing element is arranged between the injector and the cylinder head.
- the sealing element is designed in the form of a perforated disk with a cross section that is rectangular to the disk plane and is rectangular and is arranged on the mounting surface of the cylinder head.
- the injector must be pressed so firmly against the cylinder head that the sealing element deforms plastically in order to adapt to unevenness in the cylinder head and the injector.
- the required clamping force with which the injector is inserted into the Cylinder head must be clamped so high that even the injector could be deformed.
- the invention has for its object to provide a sealing element for placing between an injector and a cylinder head of the tech for sealing compared to prior ⁇ nik a lower clamping force is required, and is not affected by the same time the accuracy of adjustment of the coupling board of the injector.
- the object is achieved by a sealing element for arrangement between an injector and a cylinder head with the following features:
- the sealing element has a self-contained ring made of an elastic material.
- the ring consists of a circumferential support part, a molded-on first sealing lip for sealing the injector and a molded-on second sealing lip for sealing the cylinder head.
- the first sealing lip and the second sealing lip project radially inward and form a circumferential groove of the ring with the support part.
- the axial thickness of the first sealing lip and the axial thickness of the second sealing lip depend on a predetermined force with which the injector is to be clamped in the cylinder head in such a way that the sealing lips are sufficiently plastically deformable for sealing.
- the radial thickness of the support member is greater than the axial thickness of the
- Sealing lips and dimensioned such that the support part prevents compression of the sealing element when the sealing element is arranged between the injector and the cylinder head.
- the sealing lips serve for sealing, while the supporting part prevents the sealing element from being compressed when the injector is pressed against the cylinder head, and thereby enables the injector's tip projection to be adjusted precisely.
- the required clamping force for sealing to the sealing lips plastically z 'u deform and adapt to unevennesses of the cylinder head and the injector is, the smaller the thinner the axial thickness of the sealing lips. Compression of the sealing element is prevented with greater certainty the greater the radial thickness of the support part.
- the axial thicknesses of the sealing lips are therefore smaller than the radial thickness of the support part.
- the axial thickness of the sealing lips and the radial thickness of the support part can be optimized independently of one another.
- the sealing lips are pressed outwards by the combustion chamber pressure.
- the first sealing lip is thus pressed against the injector, while the second sealing lip is pressed against the cylinder head. This increases the sealing effect of the sealing element.
- a particularly low compression of the sealing element and, at the same time, a particularly good sealing effect with an already low clamping force is achieved if the radial thickness of the support part is at least 3 to 5 times greater than the axial thickness of the sealing lips.
- sealing lips are arranged in such a way that the distance between the sealing lips increases in the direction of the center of the ring. Due to this shape of the sealing element, the sealing lips are pressed increasingly against the injector and cylinder head, which increases the sealing effect of the sealing element.
- the cylinder head has an opening for inserting the injector, a circumferential attachment surface for the injector being arranged in the opening.
- the sealing element is arranged on the top surface. The injector is clamped in the cylinder head in such a way that the injector is pressed onto the sealing element against the mounting surface of the cylinder head.
- Inserting the injector into the cylinder head is made easier if the sealing element is around the valve stem of the injector can be fixed non-positively. On the one hand, this reduces the probability that the sealing element will be forgotten when the injector is inserted into the cylinder head. On the other hand, the probability of losing the small sealing element is reduced.
- a bent clamping wire is arranged in the groove of the ring of the sealing element.
- the clamping wire has at least two bulges, e.g. in the form of corners, which engage in the groove in such a way that the clamping wire is clamped in the ring.
- the clamping wire is designed in such a way that when the sealing element is slipped over the valve stem of the injector, the clamping wire and thus the sealing element is non-positively fixed around the valve stem. Connecting parts of the clamping wire, which connect the bulges of the clamping wire with one another, press on the valve stem from at least two sides.
- the bulges can be rounded.
- the clamping wire is bent so that it forms an ellipse.
- the clamping wire can have more than two bulges.
- the clamping wire is made of spring steel, for example.
- the clamping wire has two ends that are not connected to one another.
- Figure 1 shows a plan view of a sealing element with a first clamping wire and a ring consisting of a support member and two sealing lips.
- Figure 2 shows a cross section through the ring of the sealing element.
- Figure 3a shows a top view of the first clamping wire.
- Figure 3b shows a plan view of a second clamping wire.
- FIG. 4 shows a cross section through an injector and a cylinder head with the sealing element arranged between them.
- a sealing element which has a ring R made of soft iron or copper.
- the ring R consists of a support part S, a first molded sealing lip Dl for sealing an injector I and a molded second sealing lip D2 for sealing a cylinder head Z (see Figures 1 and 2).
- the support part S has a radial thickness of 2-3mm and an axial thickness of 2-3mm.
- the sealing lips Dl, D2 project substantially radially inwards and form a circumferential groove of the ring R with the support part S (see FIG. 2).
- the sealing lips Dl, D2 have a radial length of about 3 mm.
- the axial thickness of the sealing lips Dl, D2 is approximately 0.8 mm.
- the distance between the sealing lips Dl, D2 increases in the direction of the center of the ring.
- the sealing lips D1, D2 form an inclination angle of approximately 10 ° with a radial axis.
- a first clamping wire K is arranged in the groove of the ring R (see FIG. 1).
- the first clamping wire has three corners and two ends that are not connected to one another (see FIG. 3a). The three corners of the first clamping wire K engage in the groove of the ring R in such a way that the first clamping wire K in
- Ring R is jammed.
- the distance from the center of the ring to a connecting part between two corners of the first clamping wire K is smaller than the radius of a valve stem V of the injector I.
- the sealing element is non-positively to the valve stem xed V fi ⁇ when slipping over the valve stem V.
- first clamping wire 5 K instead of the first clamping wire 5 K, it is also possible, for example, to use a second clamping wire K ⁇ which is bent into an ellipse (see FIG. 3b).
- the cylinder head Z has an opening 0 for inserting the injector I.
- the cylinder head Z has a peripheral attachment surface A for the injector I.
- the sealing element is arranged on the top surface A (see Figure 4).
- the injector I has an upper part T which is adjacent to the valve stem V and has a larger cross section than the valve stem V.
- the valve stem V and the upper part T of the injector I form a step ST.
- the injector I is clamped in the cylinder head Z in such a way that the step ST of the injector I is pressed onto the sealing element against the attachment surface A of the cylinder head Z (see FIG. 4).
- a tip of the valve stem V protrudes about 2-3mm into a combustion chamber B of the cylinder head Z.
- the sealing lips D1 and D2 are plastically deformed such that they radially seal the combustion chamber B from the environment. Because of the sufficient radial thickness of the support part S, the sealing element is compressed only to an insignificant extent. The pressure in the combustion chamber presses the first sealing lip D1 against the step of the injector I and the second sealing lip D2 against the mounting surface A of the cylinder head Z.
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 |
|---|---|---|---|
| DE10055641A DE10055641A1 (de) | 2000-11-10 | 2000-11-10 | Dichtelement zum Anordnen zwischen einem Injektor und einem Zylinderkopf und Injektor und Zylinderkopf mit einem solchen Dichtelement |
| DE10055641 | 2000-11-10 | ||
| PCT/DE2001/004121 WO2002038945A1 (de) | 2000-11-10 | 2001-10-31 | Dichtelement zum anordnen zwischen einem injektor und einem zylinderkopf und injektor und zylinderkopf mit einem solchen dichtelement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1334274A1 true EP1334274A1 (de) | 2003-08-13 |
| EP1334274B1 EP1334274B1 (de) | 2004-06-16 |
Family
ID=7662758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01993760A Expired - Lifetime EP1334274B1 (de) | 2000-11-10 | 2001-10-31 | Dichtelement zum anordnen zwischen einem injektor und einem zylinderkopf und injektor und zylinderkopf mit einem solchen dichtelement |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US6899341B2 (de) |
| EP (1) | EP1334274B1 (de) |
| DE (2) | DE10055641A1 (de) |
| WO (1) | WO2002038945A1 (de) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8010438B2 (en) | 2000-06-01 | 2011-08-30 | Pipeline Financial Group, Inc. | Method for directing and executing certified trading interests |
| DE10055641A1 (de) | 2000-11-10 | 2002-06-13 | Siemens Ag | Dichtelement zum Anordnen zwischen einem Injektor und einem Zylinderkopf und Injektor und Zylinderkopf mit einem solchen Dichtelement |
| US20050116056A1 (en) * | 2002-07-12 | 2005-06-02 | Waldemar Hans | Fuel injector and method for installing a fuel injector in a valve seat |
| FR2851791B1 (fr) * | 2003-02-28 | 2007-02-23 | Renault Sa | Joint pour injecteur a fort coefficient d'etancheite |
| DE102005052674A1 (de) * | 2005-11-04 | 2007-05-10 | Robert Bosch Gmbh | Dichtscheibe, insbesondere zum Abdichten eines Kraftstoffinjektors gegenüber einem Motorblock, sowie Kraftstoffinjektor |
| FR2893364A1 (fr) * | 2005-11-15 | 2007-05-18 | Renault Sas | Injecteur de carburant dans un moteur diesel et moteur diesel pourvu de tels injecteurs |
| US20070125435A1 (en) * | 2005-12-01 | 2007-06-07 | Curtis Michael L | Method and apparatus for installing fluid system components |
| US7293550B2 (en) * | 2006-01-31 | 2007-11-13 | Gm Global Technology Operations, Inc. | Fuel injector isolation seat |
| DE102006045585A1 (de) * | 2006-09-27 | 2008-05-15 | Elringklinger Ag | Dichtungssystem, insbesondere für Anschlußverbindungen an Strömungswegen für Heißgase |
| DE102007001549A1 (de) * | 2007-01-10 | 2008-07-17 | Robert Bosch Gmbh | Dehnhülsenbefestigung |
| BRPI0807545A2 (pt) * | 2007-05-02 | 2014-06-17 | Bosch Gmbh Robert | Motor de combustão interna com proteção de vedação para uma válvula de injeção de combustível |
| EP2186048A4 (de) | 2007-07-26 | 2010-09-15 | Pipeline Financial Group Inc | Blockhandelssystem und verfahren zur bereitstellung von preisverbesserungen für aggressive aufträge |
| US8103579B1 (en) | 2007-07-26 | 2012-01-24 | Pipeline Financial Group, Inc. | Systems and methods regarding targeted dissemination |
| AU2008308630A1 (en) | 2007-10-05 | 2009-04-09 | Pipeline Financial Group, Inc. | Method and apparatus for improved electronic trading |
| FR2925140B1 (fr) * | 2007-12-13 | 2010-02-19 | Commissariat Energie Atomique | Joint d'etancheite superplastique, de preference pour systeme a cellules electrochimiques |
| US20090235898A1 (en) * | 2008-03-19 | 2009-09-24 | Short Jason C | Fuel injector isolator |
| EP2148082B1 (de) * | 2008-07-24 | 2011-10-19 | Continental Automotive GmbH | Kupplungsanordnung für ein Einspritzventil und Einspritzventil |
| US7827964B2 (en) * | 2009-01-14 | 2010-11-09 | Ford Global Technologies | Fuel injection system for internal combustion engine with injector isolator |
| WO2010082991A1 (en) * | 2009-01-16 | 2010-07-22 | Illinois Tool Works Inc. | Dual-phase spring assembly for use with fuel injector system |
| EP2472148B1 (de) * | 2009-08-26 | 2017-08-16 | Toki Engineering Co., Ltd. | Metalldichtring und leitungsvorrichtung mit dem metalldichtring |
| US9382887B2 (en) * | 2009-09-23 | 2016-07-05 | Cummins Intellectual Property. Inc. | Engine component seal assembly and method of sealing a coolant passage from an engine component |
| US9284932B2 (en) * | 2010-03-25 | 2016-03-15 | Denso International America, Inc. | Mounting structure for fuel injector |
| JP5270714B2 (ja) * | 2011-04-27 | 2013-08-21 | トヨタ自動車株式会社 | 燃料噴射弁用制振インシュレータ |
| US10018168B2 (en) * | 2013-10-15 | 2018-07-10 | Continental Automotive Gmbh | Fuel injector and fuel-injection system |
| CN105114200B (zh) * | 2015-07-29 | 2017-10-10 | 东风汽车股份有限公司 | 气门罩盖与喷油器联接装置及其联接方法 |
| DE102021202728A1 (de) * | 2021-03-22 | 2022-09-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Dichtelement |
| WO2025259829A1 (en) * | 2024-06-13 | 2025-12-18 | Midmark Corporation | Gasket for sterilizer |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2204507A (en) * | 1940-05-04 | 1940-06-11 | Vickers Inc | Sealing ring |
| US2345515A (en) * | 1941-03-08 | 1944-03-28 | Vickers Inc | Power transmission |
| US2366161A (en) * | 1941-03-08 | 1945-01-02 | Vickers Inc | Power transmission |
| DE1943810A1 (de) * | 1969-08-28 | 1971-08-05 | Reinz Dichtung Gmbh | Dichtungsring |
| US3595588A (en) * | 1969-07-14 | 1971-07-27 | Temper Corp | Static seal with foil laminate |
| GB1365682A (en) * | 1970-07-17 | 1974-09-04 | Corrugated Packing Sheet Metal | Sealing ring |
| US3948532A (en) * | 1975-05-23 | 1976-04-06 | Hopp Harold P | Captive type sparkplug gasket |
| DE2824476C2 (de) * | 1978-06-03 | 1983-03-17 | Bayerische Motoren Werke AG, 8000 München | Brennstoffeinspritzdüsenbefestigung an einer Brennkraftmaschine |
| AU559746B2 (en) * | 1981-11-04 | 1987-03-19 | Honda Giken Kogyo Kabushiki Kaisha | Injector mounting |
| FR2547386A1 (fr) * | 1983-06-07 | 1984-12-14 | Commissariat Energie Atomique | Joint metallique flexible |
| FR2596483B1 (fr) * | 1986-04-01 | 1989-08-25 | Europ Propulsion | Joint statique metallique et assemblage comportant un tel joint |
| US4946174A (en) * | 1988-02-25 | 1990-08-07 | Usui Kokusai Sangyo Kaisha, Ltd. | Annular metal gasket |
| US5354072A (en) * | 1989-12-19 | 1994-10-11 | Specialist Sealing Limited | Hollow metal sealing rings |
| US5044340A (en) * | 1990-01-30 | 1991-09-03 | Siemens Automotive L.P. | Fuel injectors having adapter grommet |
| US5265890A (en) * | 1990-12-03 | 1993-11-30 | Peter J. Balsells | Seal with spring energizer |
| US5247918A (en) * | 1992-09-17 | 1993-09-28 | Siemens Automotive L.P. | Sealing a direct injection fuel injector to a combustion chamber |
| JP3033499B2 (ja) * | 1996-08-22 | 2000-04-17 | 三菱自動車工業株式会社 | シリンダヘッドのシール装置 |
| US6042121A (en) * | 1997-07-21 | 2000-03-28 | Eg&G Sealol, Inc. | Metallic sealing ring |
| JPH11131052A (ja) * | 1997-10-31 | 1999-05-18 | Mitsubishi Cable Ind Ltd | シール |
| DE19753518A1 (de) * | 1997-12-03 | 1999-06-10 | Bosch Gmbh Robert | Kraftstoffzuleitungseinrichtung |
| JPH11210886A (ja) * | 1998-01-23 | 1999-08-03 | Nok Corp | ガスケット |
| DE19807819C1 (de) * | 1998-02-26 | 1999-05-12 | Mtu Friedrichshafen Gmbh | Verfahren zur brennraumseitigen Abdichtung eines Einspritzventils einer Brennkraftmaschine |
| US6009856A (en) * | 1998-05-27 | 2000-01-04 | Caterpillar Inc. | Fuel injector isolation |
| JP2001132582A (ja) * | 1999-11-10 | 2001-05-15 | Mitsubishi Electric Corp | 筒内噴射用燃料噴射弁 |
| DE10003407A1 (de) * | 2000-01-27 | 2001-08-09 | Recaro Aircraft Seating Gmbh | Fahrzeugsitz für Flug-oder Kraftfahrzeuge |
| US6460512B1 (en) * | 2000-10-16 | 2002-10-08 | International Engine Intellectual Property Company, L.L.C. | Combustion gasket having dual material structures |
| DE10055641A1 (de) | 2000-11-10 | 2002-06-13 | Siemens Ag | Dichtelement zum Anordnen zwischen einem Injektor und einem Zylinderkopf und Injektor und Zylinderkopf mit einem solchen Dichtelement |
-
2000
- 2000-11-10 DE DE10055641A patent/DE10055641A1/de not_active Ceased
-
2001
- 2001-10-31 DE DE50102635T patent/DE50102635D1/de not_active Expired - Lifetime
- 2001-10-31 WO PCT/DE2001/004121 patent/WO2002038945A1/de not_active Ceased
- 2001-10-31 EP EP01993760A patent/EP1334274B1/de not_active Expired - Lifetime
-
2003
- 2003-05-12 US US10/436,290 patent/US6899341B2/en not_active Expired - Fee Related
-
2005
- 2005-02-25 US US11/066,593 patent/US7281521B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0238945A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030201612A1 (en) | 2003-10-30 |
| DE50102635D1 (de) | 2004-07-22 |
| WO2002038945A1 (de) | 2002-05-16 |
| US20050150481A1 (en) | 2005-07-14 |
| US6899341B2 (en) | 2005-05-31 |
| US7281521B2 (en) | 2007-10-16 |
| EP1334274B1 (de) | 2004-06-16 |
| DE10055641A1 (de) | 2002-06-13 |
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