US20060001222A1 - Gasket - Google Patents

Gasket Download PDF

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Publication number
US20060001222A1
US20060001222A1 US11/220,487 US22048705A US2006001222A1 US 20060001222 A1 US20060001222 A1 US 20060001222A1 US 22048705 A US22048705 A US 22048705A US 2006001222 A1 US2006001222 A1 US 2006001222A1
Authority
US
United States
Prior art keywords
sealing bead
gasket
cutout
seal
opening
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.)
Abandoned
Application number
US11/220,487
Inventor
Karl Dussler
Karl Huber
Hans-Ulrich Leutwein
Josef Ludwig
Matthias Weidner
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of US20060001222A1 publication Critical patent/US20060001222A1/en
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEUTWEIN, HANS-ULRICH, WEIDNER, MATTHIAS, HUBER, KARL
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 017613 FRAME 0073. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: LEUTWEIN, HANS-ULRICH, WEIDNER, MATTHIAS, HUBER, KARL
Priority to US12/273,652 priority Critical patent/US7637509B2/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0448—Sealing means, e.g. for shafts or housings
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48—Assembling; Disassembling; Replacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams

Definitions

  • the invention relates to a gasket, in particular for fuel high-pressure pumps.
  • a fuel high-pressure pump is known from DE 198 41 642 C2 which has a pump housing and a plurality of cylinder heads. Each cylinder head is fixed in the pump housing using a centering shoulder.
  • An induction line runs from the pump housing into the cylinder. The fuel reaches the cylinder chamber from the induction line via an induction valve. In the cylinder chamber the fuel is compressed and is then fed back into the pump housing via a high-pressure valve and a high-pressure line, from where the fuel is fed to a common high-pressure accumulator, known as the Common Rail.
  • An O-ring seal is arranged between the cylinder and the pump housing. To accommodate the O-ring seal the cylinder head has a groove.
  • the object of the invention is hence to ensure a secure seal of the fuel high-pressure pump combined with ease of assembly of the seal.
  • a gasket comprising a first cutout for a cylinder head, a second cutout for a high-pressure channel, a third cutout for an induction channel, a first sealing bead around the second cutout for the high-pressure channel, a second sealing bead around the third cutout for the induction channel, a third sealing bead which encircles the first and second sealing bead, and a discharge opening being introduced within the surface encircled by the sealing bead.
  • the first sealing bead which is arranged around the high-pressure channel, may have a coaxial profiling.
  • the coaxial profiling may have a wave-shaped and/or sawtooth-shaped profile.
  • the seal may have positioning tabs for precise positioning of the seal between the components to be sealed or on one of the components to be sealed.
  • the gasket may consist of a spring steel or of a metal which can preferably be worked cold.
  • the seal can be coated at least partially with an elastomer or another suitable plastic, or with metal.
  • the invention is characterized in that the seal is formed as a gasket.
  • the gasket has a first cutout for the cylinder head, a second cutout for the high-pressure channel and a third cutout for the induction channel.
  • Around the cutout for the high-pressure channel is a first sealing bead and around the cutout for the induction channel is a second sealing bead.
  • a third sealing bead in the gasket said sealing bead encircling the first and the second sealing bead. This ensures that if the first and/or second sealing beads are leaking, no fuel can reach the outside via the sealing surfaces but that thanks to the third encircling sealing bead it is guaranteed at all times that the gasket is leakproof.
  • an advantageous embodiment of the invention provides for a sealing bead with coaxial profiling, preferably with a wave-shaped and/or sawtooth-shaped profile around the cutout for the high-pressure channel.
  • a sealing bead profiled like this is already known from DE 100 60 872 A1, the disclosure of which is included in this respect.
  • FIG. 1 shows a three-dimensional representation of the inventive gasket
  • FIG. 2 shows a detailed view of a fuel high-pressure pump with a gasket in accordance with FIG. 1 .
  • FIG. 1 shows a three-dimensional representation of the gasket
  • FIG. 2 a detailed view of a fuel high-pressure pump with the gasket shown in FIG. 1 .
  • the figures are jointly explained below.
  • the gasket 1 has a first cutout 2 for the cylinder head 20 , a second cutout 3 for the high-pressure channel 21 and a third cutout 4 for the induction channel 22 .
  • a first and a second essentially circular sealing bead 5 , 6 run respectively around the cutout for the high-pressure channel and around the cutout for the induction channel.
  • the first sealing bead 5 for the high-pressure channel has a coaxial profiling with several waves.
  • the narrow ring-shaped contact surfaces of the profiled sealing bead produce a high compressive load on the components to be sealed.
  • the second sealing bead 6 for the induction channel can be formed as a simple sealing bead, since the liquid pressure in the induction channel is low.
  • first and second sealing bead 5 , 6 there is an additional third sealing bead 7 in the gasket, which is designed such that it encircles both the first and the second sealing bead 5 , 6 .
  • the gasket has several positioning tabs 8 .
  • the positioning tabs engage cutouts of an adjoining component in the assembled state, as a result of which it can be ensured that the gasket is assembled quickly and in the right position. This results in a significant saving of time for assembly compared to the prior art. Additionally, incorrect assembly is thereby largely excluded.
  • the gasket is manufactured in particular from a spring steel or from another metal that can preferably be worked cold, and is preferably coated at least partially with an elastomer or another suitable plastic or metal.
  • the coating enables rugosities on the sealing surfaces of the housing and of the cylinder to be evened out. The coating presses into the unevennesses when fastening the seal and largely fills these up, as a result of which a secure seal is ensured.
  • the proposed invention is thus suitable for securely sealing, with a single component simultaneously, both the high-pressure channel and the induction channel of a fuel high-pressure pump, it not being possible for the fuel to escape from the pump housing in the event of a fuel leak, because it is retained by an additional sealing bead.
  • the sealing beads possess sufficient elasticity and thus ensure a secure seal across the entire range of use.
  • the gasket is simple to manufacture, for example by punching, and is thus particularly inexpensive. Additional positioning tabs ensure simple and secure assembly.

Landscapes

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

Abstract

The invention relates to a gasket (1), particularly for a fuel high-pressure pump, comprising a first cutout (2) for a cylinder head, a second cutout (3) for a high-pressure channel, and a third cutout (4) for an induction channel. A first (5) and second sealing bead (6) are respectively formed around the cutouts for the high-pressure channel as well as around the cutout for the induction channel. The gasket (1) comprises a wider third sealing bead (7) that is formed so that it encircles the other sealing beads.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation of co-pending International Application No. PCT/EP2004/001699 filed Feb. 20, 2004, which designates the United States of America, and claims priority to German application number 103 10 124.1 filed Mar. 7, 2003, the contents of which are hereby incorporated by reference in their entirety.
    • TECHNICAL FIELD
  • The invention relates to a gasket, in particular for fuel high-pressure pumps.
    • BACKGROUND
  • A fuel high-pressure pump is known from DE 198 41 642 C2 which has a pump housing and a plurality of cylinder heads. Each cylinder head is fixed in the pump housing using a centering shoulder. An induction line runs from the pump housing into the cylinder. The fuel reaches the cylinder chamber from the induction line via an induction valve. In the cylinder chamber the fuel is compressed and is then fed back into the pump housing via a high-pressure valve and a high-pressure line, from where the fuel is fed to a common high-pressure accumulator, known as the Common Rail. An O-ring seal is arranged between the cylinder and the pump housing. To accommodate the O-ring seal the cylinder head has a groove. Inserting the O-ring calls for a good deal of assembly work, and it can easily happen that the O-ring does not lie correctly in the groove. When the cylinder head is screwed up the O-ring is then squeezed between the sealing surfaces of the two components and is damaged. As a result, fuel can escape from the fuel high-pressure pump.
    • SUMMARY
  • The object of the invention is hence to ensure a secure seal of the fuel high-pressure pump combined with ease of assembly of the seal.
  • The object is achieved by a gasket comprising a first cutout for a cylinder head, a second cutout for a high-pressure channel, a third cutout for an induction channel, a first sealing bead around the second cutout for the high-pressure channel, a second sealing bead around the third cutout for the induction channel, a third sealing bead which encircles the first and second sealing bead, and a discharge opening being introduced within the surface encircled by the sealing bead.
  • The first sealing bead, which is arranged around the high-pressure channel, may have a coaxial profiling. The coaxial profiling may have a wave-shaped and/or sawtooth-shaped profile. The seal may have positioning tabs for precise positioning of the seal between the components to be sealed or on one of the components to be sealed. The gasket may consist of a spring steel or of a metal which can preferably be worked cold. The seal can be coated at least partially with an elastomer or another suitable plastic, or with metal.
  • The invention is characterized in that the seal is formed as a gasket. The gasket has a first cutout for the cylinder head, a second cutout for the high-pressure channel and a third cutout for the induction channel. Around the cutout for the high-pressure channel is a first sealing bead and around the cutout for the induction channel is a second sealing bead. Additionally there is a third sealing bead in the gasket, said sealing bead encircling the first and the second sealing bead. This ensures that if the first and/or second sealing beads are leaking, no fuel can reach the outside via the sealing surfaces but that thanks to the third encircling sealing bead it is guaranteed at all times that the gasket is leakproof.
  • In order to ensure a particularly secure seal in the region of the high-pressure channel, an advantageous embodiment of the invention provides for a sealing bead with coaxial profiling, preferably with a wave-shaped and/or sawtooth-shaped profile around the cutout for the high-pressure channel. A sealing bead profiled like this is already known from DE 100 60 872 A1, the disclosure of which is included in this respect.
  • In a particularly advantageous embodiment of the invention there are positioning tabs on the gasket. With the aid of the positioning tabs the gasket can be precisely positioned, as a result of which incorrect assembly can be largely excluded.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • An exemplary embodiment of invention is explained in the following with the aid of the schematic drawings.
  • FIG. 1 shows a three-dimensional representation of the inventive gasket and
  • FIG. 2 shows a detailed view of a fuel high-pressure pump with a gasket in accordance with FIG. 1.
    • DETAILED DESCRIPTION
  • FIG. 1 shows a three-dimensional representation of the gasket and FIG. 2 a detailed view of a fuel high-pressure pump with the gasket shown in FIG. 1. The figures are jointly explained below.
  • The gasket 1 has a first cutout 2 for the cylinder head 20, a second cutout 3 for the high-pressure channel 21 and a third cutout 4 for the induction channel 22. A first and a second essentially circular sealing bead 5, 6 run respectively around the cutout for the high-pressure channel and around the cutout for the induction channel. The first sealing bead 5 for the high-pressure channel has a coaxial profiling with several waves. The narrow ring-shaped contact surfaces of the profiled sealing bead produce a high compressive load on the components to be sealed. The second sealing bead 6 for the induction channel can be formed as a simple sealing bead, since the liquid pressure in the induction channel is low. In addition to the first and second sealing bead 5, 6 there is an additional third sealing bead 7 in the gasket, which is designed such that it encircles both the first and the second sealing bead 5, 6. This produces a particularly secure seal. If the first and/or second sealing bead 5, 6 is leaking, the liquid cannot escape from the housing of the fuel pump, but is retained by the encircling sealing bead 7. So that no liquid pressure can build up within the encircling sealing bead 7, the gasket 1 has a drain opening 9 within the surface encircled by the sealing bead 7. Thanks to the drain opening 9 the liquid escaping from a leak can flow out of the space formed by the third sealing bead 7. To this end, a drain line 23 is provided in the fuel pump, which routes the flow of the leak into the interior of the pump.
  • For ease of assembly of the gasket between the components to be sealed or on one of the components to be sealed, the gasket has several positioning tabs 8. The positioning tabs engage cutouts of an adjoining component in the assembled state, as a result of which it can be ensured that the gasket is assembled quickly and in the right position. This results in a significant saving of time for assembly compared to the prior art. Additionally, incorrect assembly is thereby largely excluded.
  • The gasket is manufactured in particular from a spring steel or from another metal that can preferably be worked cold, and is preferably coated at least partially with an elastomer or another suitable plastic or metal. The coating enables rugosities on the sealing surfaces of the housing and of the cylinder to be evened out. The coating presses into the unevennesses when fastening the seal and largely fills these up, as a result of which a secure seal is ensured.
  • The proposed invention is thus suitable for securely sealing, with a single component simultaneously, both the high-pressure channel and the induction channel of a fuel high-pressure pump, it not being possible for the fuel to escape from the pump housing in the event of a fuel leak, because it is retained by an additional sealing bead. Within a temperature range from −40° C. to +140° C., the sealing beads possess sufficient elasticity and thus ensure a secure seal across the entire range of use. The gasket is simple to manufacture, for example by punching, and is thus particularly inexpensive. Additional positioning tabs ensure simple and secure assembly.
  • The invention is not of course restricted to the exemplary embodiment. In particular, those seals are also included in which more than two inner sealing beads are encircled by a further sealing bead.

Claims (17)

1. A gasket comprising:
a first cutout for a cylinder head,
a second cutout for a high-pressure channel,
a third cutout for an induction channel,
a first sealing bead around the second cutout for the high-pressure channel,
a second sealing bead around the third cutout for the induction channel,
a third sealing bead which encircles the first and second sealing bead, and
a discharge opening being introduced within the surface encircled by the sealing bead.
2. A gasket according to claim 1, wherein the first sealing bead, which is arranged around the high-pressure channel, has a coaxial profiling.
3. A gasket according to claim 2, wherein the coaxial profiling has a wave-shaped and/or sawtooth-shaped profile.
4. A gasket according to claim 1, wherein the seal has positioning tabs for precise positioning of the seal between the components to be sealed or on one of the components to be sealed.
5. A gasket according to claim 1, wherein the gasket consists of a spring steel or of a metal which can preferably be worked cold.
6. A gasket according to claim 1, wherein the seal is coated at least partially with an elastomer or another suitable plastic, or with metal.
7. A gasket comprising:
a first opening for a cylinder head,
a second opening for a high-pressure channel,
a third opening for an induction channel,
a first sealing bead around the second opening,
a second sealing bead around the third opening,
a third sealing bead which encircles the first and second sealing bead, and
a discharge opening being introduced within the surface encircled by the third sealing bead.
8. A gasket according to claim 7, wherein the first sealing bead, which is arranged around the high-pressure channel, has a coaxial profiling.
9. A gasket according to claim 8, wherein the coaxial profiling has a wave-shaped and/or sawtooth-shaped profile.
10. A gasket according to claim 7, wherein the seal has positioning tabs for precise positioning of the seal between the components to be sealed or on one of the components to be sealed.
11. A gasket according to claim 7, wherein the gasket consists of a spring steel or of a metal which can preferably be worked cold.
12. A gasket according to claim 7, wherein the seal is coated at least partially with an elastomer or another suitable plastic, or with metal.
13. A gasket comprising:
a first opening for a cylinder head,
a second opening for a high-pressure channel,
a third opening for an induction channel,
a first sealing bead around the second opening having a coaxial profiling,
a second sealing bead around the third opening,
a third sealing bead which encircles the first and second sealing bead, and
a discharge opening being introduced within the surface encircled by the third sealing bead.
14. A gasket according to claim 13, wherein the coaxial profiling has a wave-shaped and/or sawtooth-shaped profile.
15. A gasket according to claim 13, wherein the seal has positioning tabs for precise positioning of the seal between the components to be sealed or on one of the components to be sealed.
16. A gasket according to claim 13, wherein the gasket consists of a spring steel or of a metal which can preferably be worked cold.
17. A gasket according to claim 13, wherein the seal is coated at least partially with an elastomer or another suitable plastic, or with metal.
US11/220,487 2003-03-07 2005-09-07 Gasket Abandoned US20060001222A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/273,652 US7637509B2 (en) 2003-03-07 2008-11-19 High pressure fuel pump with a gasket

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10310124A DE10310124B4 (en) 2003-03-07 2003-03-07 gasket
DE10310124.1 2003-03-07
PCT/EP2004/001699 WO2004079189A1 (en) 2003-03-07 2004-02-20 Gasket

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001699 Continuation WO2004079189A1 (en) 2003-03-07 2004-02-20 Gasket

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/273,652 Continuation US7637509B2 (en) 2003-03-07 2008-11-19 High pressure fuel pump with a gasket

Publications (1)

Publication Number Publication Date
US20060001222A1 true US20060001222A1 (en) 2006-01-05

Family

ID=32864274

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/220,487 Abandoned US20060001222A1 (en) 2003-03-07 2005-09-07 Gasket
US12/273,652 Expired - Fee Related US7637509B2 (en) 2003-03-07 2008-11-19 High pressure fuel pump with a gasket

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/273,652 Expired - Fee Related US7637509B2 (en) 2003-03-07 2008-11-19 High pressure fuel pump with a gasket

Country Status (4)

Country Link
US (2) US20060001222A1 (en)
EP (1) EP1601873B1 (en)
DE (1) DE10310124B4 (en)
WO (1) WO2004079189A1 (en)

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US20110006488A1 (en) * 2006-12-19 2011-01-13 Robert Bosch Gmbh Flat gasket
JP2011506859A (en) * 2007-12-06 2011-03-03 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Gasket for high-pressure pump and high-pressure pump having the gasket
EP2902614A1 (en) * 2014-02-03 2015-08-05 Robert Bosch Gmbh SEALING DISc FOR A FUEL INJECTOR, AND FUEL INJECTOR WITH SUCH A SEALING DISC
US20160032879A1 (en) * 2013-03-15 2016-02-04 Robert Bosch Gmbh High-Pressure Pump, in Particular Plug-In Pump, for a Fuel System for an Internal Combustion Engine
JP2016223350A (en) * 2015-05-29 2016-12-28 三菱重工業株式会社 Radial piston type hydraulic machine and wind power generator, and seal construction method
GB2551562A (en) * 2016-06-23 2017-12-27 Delphi Int Operations Luxembourg Sarl Gasket of a front plate of a high pressure pump
CN113847240A (en) * 2020-06-25 2021-12-28 爱塞威汽车有限责任公司 Pump comprising an axially acting spring washer

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EP2072818A1 (en) 2007-12-21 2009-06-24 Reinz-Dichtungs-GmbH & Co. KG Metallic flat gasket and its use
US20110052428A1 (en) * 2008-01-16 2011-03-03 Superpar Otomotiv Sanayi Ve Ticaret Anonim Sirketi Electric fuel pump for heavy duty engine platforms
DE202008005712U1 (en) 2008-04-24 2009-09-03 Reinz-Dichtungs-Gmbh Metallic flat gasket
DE102008042626A1 (en) * 2008-05-29 2009-12-03 Robert Bosch Gmbh High-pressure fuel pump
US8459656B2 (en) * 2009-10-20 2013-06-11 Robert K Ridgway Fuel line gasket for use with a diesel fuel injector
DE102010053945A1 (en) 2009-12-17 2011-06-22 Schaeffler Technologies GmbH & Co. KG, 91074 Sealing unit for sealing seal gap between component sealing surfaces of machine components of working cylinder of clutch release device, has flat seal that is pressed between component sealing surfaces
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US20110006488A1 (en) * 2006-12-19 2011-01-13 Robert Bosch Gmbh Flat gasket
CN101563558B (en) * 2006-12-19 2013-06-05 罗伯特·博世有限公司 Flat gasket
JP2011506859A (en) * 2007-12-06 2011-03-03 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Gasket for high-pressure pump and high-pressure pump having the gasket
US8590442B2 (en) 2007-12-06 2013-11-26 Robert Bosch Gmbh Gasket for high-pressure pump and high-pressure pump comprising said gasket
US20160032879A1 (en) * 2013-03-15 2016-02-04 Robert Bosch Gmbh High-Pressure Pump, in Particular Plug-In Pump, for a Fuel System for an Internal Combustion Engine
EP2902614A1 (en) * 2014-02-03 2015-08-05 Robert Bosch Gmbh SEALING DISc FOR A FUEL INJECTOR, AND FUEL INJECTOR WITH SUCH A SEALING DISC
JP2016223350A (en) * 2015-05-29 2016-12-28 三菱重工業株式会社 Radial piston type hydraulic machine and wind power generator, and seal construction method
GB2551562A (en) * 2016-06-23 2017-12-27 Delphi Int Operations Luxembourg Sarl Gasket of a front plate of a high pressure pump
GB2551562B (en) * 2016-06-23 2020-03-18 Delphi Tech Ip Ltd Gasket of a front plate of a high pressure pump
CN113847240A (en) * 2020-06-25 2021-12-28 爱塞威汽车有限责任公司 Pump comprising an axially acting spring washer
US11808263B2 (en) 2020-06-25 2023-11-07 Schwäbische Hüttenwerke Automotive GmbH Pump comprising an axially acting spring gasket

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EP1601873A1 (en) 2005-12-07
DE10310124A1 (en) 2004-09-16
WO2004079189A1 (en) 2004-09-16
US7637509B2 (en) 2009-12-29
EP1601873B1 (en) 2012-07-11
DE10310124B4 (en) 2009-09-10
US20090072492A1 (en) 2009-03-19

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