EP1066460A2 - Soupape de pression - Google Patents

Soupape de pression

Info

Publication number
EP1066460A2
EP1066460A2 EP99942739A EP99942739A EP1066460A2 EP 1066460 A2 EP1066460 A2 EP 1066460A2 EP 99942739 A EP99942739 A EP 99942739A EP 99942739 A EP99942739 A EP 99942739A EP 1066460 A2 EP1066460 A2 EP 1066460A2
Authority
EP
European Patent Office
Prior art keywords
valve
bore
valve body
valve housing
housing
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.)
Withdrawn
Application number
EP99942739A
Other languages
German (de)
English (en)
Inventor
Makoto Kinoshita
Kiyotaka Ogata
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1066460A2 publication Critical patent/EP1066460A2/fr
Withdrawn legal-status Critical Current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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/778—Axes of ports co-axial

Definitions

  • the invention is based on a pressure valve according to the preamble of claim 1.
  • a pressure valve known from an earlier German patent application with the file number DE 197 10 891.1 is inserted there into a delivery line between a pump work chamber of a fuel injection pump and an injection point on the internal combustion engine to be supplied.
  • This known pressure valve which acts as a constant pressure valve, has a cylindrical valve housing in which an axial through-hole designed as a stepped bore is provided. From this first end face, a cylindrical valve body designed as a pipe socket is inserted into this bore in the valve housing.
  • the valve body has an axial passage channel and, with its end face projecting into the valve housing, forms a valve seat surrounding the passage channel.
  • An axially displaceable valve member comes into contact with this sealing seat surface by the force of a return spring with a sealing surface.
  • the movable valve member protrudes into the through-channel of the valve body and, with its end face immersed in the valve body, forms a valve seat surface for another, in the opposite direction to first valve member opening valve member of a backflow valve arranged within the valve body.
  • the pressure valve according to the invention with the characterizing features of claim 1 has the advantage that the axial securing of the valve body in the valve housing is very easy to manufacture in terms of production technology and also ensures easy disassembly of the two components.
  • the valve body is secured axially in the valve housing in an advantageous manner by means of a latching connection.
  • This locking connection is similar to one Tongue-and-groove connection formed by an annular collar protruding radially from the peripheral wall of the cylindrical valve body and a receiving ring groove in the wall of the bore of the valve housing.
  • the receiving ring groove in the bore wall of the valve housing is spaced from the axial end face facing the valve body, this intermediate region of the bore having a diameter which is smaller than the outer diameter of the annular collar acting as a press collar on the valve body.
  • Receiving ring groove of the valve housing bore on a further bore section the diameter of which is also smaller than the diameter of the annular collar on the valve body, the two bore sections adjoining the receiving ring groove of the valve housing bore preferably having the same inner diameter.
  • the collar on the valve body is also spaced apart by two stem areas from the end faces of the valve body, the diameter of which is smaller than the diameter of the bore areas of the valve housing bore adjoining the receiving ring groove on both sides.
  • the valve body has at its end facing away from the valve housing an enlarged cross-section head piece, which is spaced apart from the collar by the smaller diameter of the shaft area and whose diameter is larger than the diameter of the bore in the valve housing and also larger than the collar.
  • the axial extension of the receiving ring groove in the valve housing bore is greater than the axial extension of the annular collar on the valve body, the receiving ring groove being designed and arranged such that the head piece on the valve body can be brought into contact with the end face of the valve housing when the annular collar protruding into the receiving ring groove. Furthermore, it is possible with an annular collar protruding into the receiving ring groove, when the annular collar rests on the end of the valve body To create the receiving ring groove an axial distance between the valve housing face and the head piece on the valve body.
  • This arrangement and design of the receiving ring groove in cooperation with the collar on the valve body enables a safe, sealing contact of the valve body head piece on the end face of the valve housing and secondly an easy pulling out of the valve body from the valve housing bore, at least to the extent that now a pulling tool the head piece of the valve body can reach behind.
  • the valve body can then be pulled out of the valve housing in a simple manner by this improved attachment of a removal tool.
  • the seal between the valve body and the valve housing can be improved in an advantageous manner in that a biting edge is provided on the annular end face of the head piece facing the valve housing on the valve body or on its end face immersed in the valve housing, which cooperates sealingly with a corresponding counter surface on the valve housing.
  • the axial sealing force is applied during the installation of the pressure valve in a corresponding component or by an external separate component.
  • the pressure valve according to the invention is designed as a constant pressure valve, the valve member, which is axially displaceably guided in a through bore in the valve body, forming a through-channel, another, counter to the
  • the axial ends of the through hole in the valve housing are also advantageously formed as line connections to which, for example, a delivery line to a fuel injection valve or, on the other hand, a pump work chamber of a high-pressure fuel pump can be connected.
  • the inventive design of the axial securing of the valve body within the valve housing is not limited to this constant pressure valve type, but can be used on all similar valve types in which a tubular component is to be axially secured in a bore in a second component. Alternatively, an exchange would also be possible in such a way that the radially protruding ring collar is provided on the bore wall and the radially inwardly directed receiving ring groove is provided on the valve body to be inserted.
  • FIG. 1 shows a sectional illustration of the pressure valve according to the invention
  • FIGS. 2 to 5 show one Simplified representation of the arrangement of the annular collar and receiving ring groove on the valve body or on the valve housing, as well as the individual process stages during the insertion of the valve body into the valve housing.
  • the pressure valve shown in FIG. 1 in a longitudinal section and designed as a constant pressure valve has a valve housing 1 which has a stepped through bore 3, the axial ends of which form line connections.
  • a cylindrical valve body 5 is inserted into a section of the through bore 3 which is enlarged in diameter and which, with a head piece 7 with a larger diameter, abuts a valve body side
  • valve body 5 is axially secured against slipping out of the through hole 3 in the valve housing 1, the manner of this axial securing being explained in more detail in FIGS. 2 to 5.
  • the valve body 5 furthermore has an axial passage channel 11, which forms a first valve seat surface 13 at its mouth into the end face immersed in the valve housing 1.
  • a piston-shaped axially displaceable valve member 15 interacts with a valve sealing surface 17 with this preferably conical valve seat surface 13, the movable valve member 15 being guided in part in the passage channel 11.
  • This valve member 15 is held by a return spring 19 in contact with the first valve seat 13 and opens when the pressure of the flowing medium is exceeded by the closing force of this return spring 19 in the direction facing away from the valve body 5.
  • the return spring 19 is supported on the other hand fixed to the housing Adjustment sleeve 21 on a bore shoulder of the through hole 3.
  • the valve member 15 has an axial through bore 23, which in the direction of the head piece 7 of the
  • Valve body 5 opening backflow valve 25 formed as a ball valve is closable.
  • the ring end face of the valve member 15 facing the head piece 7 forms a second valve seat surface 27 with which the valve member of the backflow valve 25, which is designed as a ball 29, cooperates.
  • the valve ball 31 of the backflow valve 25 is held by a valve spring 31 via a spring plate 33 in contact with the second valve seat 27, the valve spring 31, on the other hand, being supported in a stationary manner with respect to the valve body 5.
  • a stop piece 37 is inserted into the through channel 11 from its end face 35 protruding from the bore 3 of the valve housing 1 and forms an abutment for the valve spring 31 and a stroke stop for the spring plate 33.
  • valve body 5 In order to be able to ensure that the valve body 5 slips out of the through bore 3 in the valve housing 1 while at the same time being easy to disassemble, the valve body 5 is axially secured in the through bore 3 of the valve housing 1 by means of a latching connection, as shown in FIGS.
  • the locking connection is designed in the manner of a tongue and groove connection.
  • an annular collar 39 projecting radially from the peripheral wall of the cylindrical valve body 5 is first provided on the valve body 5.
  • This collar 39 interacts with a receiving ring groove 41 in the wall of the through hole 3 in the valve housing 1. It is between the receiving ring groove 41 in the bore wall 3 of the Valve housing 1 and the axial end face 9 of the valve housing 1 facing the valve body 5, a bore portion 43 is provided, the diameter of which is smaller than the diameter of the annular collar 39 on the valve body 5.
  • the annular collar 39 on the valve body 5 is delimited on both sides by two stem regions 47, 49, the diameter of which is smaller than the diameter of the bore sections 43 and 45 of the bore 3 in the valve housing 1 which adjoin the receiving annular groove 41 on both sides.
  • the head piece 7, enlarged in cross section, on the valve body 5 is spaced from the annular collar 39 by the stem region 47.
  • the axial extent of the receiving ring groove 41 and the bore section 43 of the through-hole 3 in the valve housing 1 is, depending on the axial extent of the annular collar 39 and the stem region 47 on the valve body 5, designed so that the valve body 5 with axial play with its annular collar acting as a press collar 39 engages in the receiving ring groove 41 of the valve housing 1.
  • This axial play is dimensioned such that the valve body 5, with the annular collar 39 projecting into the receiving ring groove 41, can come into contact with the end face 9 of the valve housing 1 with an annular end face 51 formed at the transition between the head piece 7 and the shaft region 47 .
  • the body edges facing one another, which must be run over in the process are preferably beveled.
  • the bore section 43 of the through bore 3 of the valve housing 1 to be passed by the annular collar 39 has a slightly smaller dimension than the diameter of the annular collar 39, the press-in forces being adjustable via the design of these dimensions.
  • valve body 5 is initially shown in FIG.
  • Valve housing end face 9 inserted.
  • the valve body 5 with its annular collar 39 is now over one
  • valve body 5 reaches its final position when the entire pressure valve is inserted in a corresponding housing, the valve body 5 now being displaced into its axial end position by a further component acting on the head piece 7 and held there. In this end position, the valve body 5 preferably bears with its head piece 7 against the valve housing 1, the sealing of the valve body 5 to the outside preferably between the annular end face 51 and the
  • Valve housing face 9 takes place.
  • some of these edges can be provided with a biting edge (not shown in more detail) which plastically deforms when the components are axially braced against one another.
  • the axial play of the valve body 5 within the scope of the play of the annular collar 39 within the receiving ring groove 41 enables the head piece 7 to be lifted off the valve housing end face 9, so that a pulling tool is easily attached to the head piece 7 of the tubular valve body 5 can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)
  • Check Valves (AREA)
  • Control Of Fluid Pressure (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne une soupape de pression comportant un obturateur (5) inséré dans un alésage (3) d'un corps de soupape (1), obturateur qui présente, à son extrémité introduite dans le corps de soupape (1), une surface de siège (13) contre laquelle un obturateur (15) mobile peut être amené par une force de rappel (19) et à laquelle est raccordé un canal de passage (11) traversant l'obturateur (5). Pour que la fixation axiale de l'obturateur dans le corps de soupape soit plus simple et que le démontage soit plus facile, ledit obturateur (5) est relié axialement, par l'intermédiaire d'un élément d'encliquetage (39), dans le corps de soupape (1).
EP99942739A 1998-07-02 1999-07-01 Soupape de pression Withdrawn EP1066460A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29811791U 1998-07-02
DE29811791U DE29811791U1 (de) 1998-07-02 1998-07-02 Druckventil
PCT/DE1999/001921 WO2000001937A2 (fr) 1998-07-02 1999-07-01 Soupape de pression

Publications (1)

Publication Number Publication Date
EP1066460A2 true EP1066460A2 (fr) 2001-01-10

Family

ID=8059329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99942739A Withdrawn EP1066460A2 (fr) 1998-07-02 1999-07-01 Soupape de pression

Country Status (6)

Country Link
US (1) US6497247B1 (fr)
EP (1) EP1066460A2 (fr)
JP (1) JP2002519583A (fr)
KR (1) KR20010023467A (fr)
DE (1) DE29811791U1 (fr)
WO (1) WO2000001937A2 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050087624A1 (en) * 2002-05-10 2005-04-28 Siemens Aktiengesellschaft Injector for fuel injection
JP4152814B2 (ja) * 2003-01-17 2008-09-17 株式会社ショーワ リリーフ弁
US7302938B2 (en) * 2003-10-16 2007-12-04 Ford Motor Company Mechanical returnless fuel system
US6953026B2 (en) * 2003-10-16 2005-10-11 Visteon Global Technologies, Inc. Pressure regulating valve for automotive fuel system
US20060196476A1 (en) * 2005-02-28 2006-09-07 Caterpillar Inc. Pressure relief valve
DE102007017970A1 (de) * 2007-04-11 2008-10-16 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
DE102008001572A1 (de) * 2008-05-06 2009-11-12 Robert Bosch Gmbh Federhaltehülse
DE102009049094A1 (de) 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049096A1 (de) 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049095A1 (de) 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
JP5910143B2 (ja) * 2012-02-15 2016-04-27 トヨタ自動車株式会社 燃料ポンプ構造
CN103174572B (zh) * 2013-04-12 2015-04-15 南岳电控(衡阳)工业技术有限公司 一种可以控制压力和流量的安全溢流阀装置
WO2016098482A1 (fr) * 2014-12-18 2016-06-23 日立オートモティブシステムズ株式会社 Mécanisme de soupape et pompe d'alimentation en carburant à haute pression comportant celui-ci
HUP1900114A1 (hu) * 2019-04-05 2020-10-28 Kerox Ipari Es Kereskedelmi Kft Vezérelt dugattyús szelep
DE102019135310A1 (de) 2019-12-19 2021-06-24 Otto Egelhof Gmbh & Co. Kg Rückschlagventil sowie Anschlusseinrichtung für ein Rückschlagventil
US20240344625A1 (en) * 2023-04-12 2024-10-17 Republic Oil Tools, LLC Adjustable check valve

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US2955613A (en) * 1960-10-11 A buock
IT1150318B (it) * 1981-03-21 1986-12-10 Bosch Gmbh Robert Pompa di iniezione del carburante per motori endotermici
US4580816A (en) * 1984-01-25 1986-04-08 E. R. Squibb & Sons, Inc. Quick disconnect tube coupling
JPS61113874A (ja) * 1984-11-08 1986-05-31 株式会社　村上色彩技術研究所 染浴等の調製装置
JPS61138874A (ja) * 1984-12-07 1986-06-26 Nissan Motor Co Ltd 燃料噴射装置の燃料吐出弁
JPS62110566U (fr) * 1985-12-27 1987-07-14
FR2620785B1 (fr) * 1987-09-22 1990-01-12 Haudiquer Sa Organe de controle de l'ecoulement d'un fluide constituant au moins un clapet anti-retour
DE68916267T2 (de) * 1988-01-18 1994-10-13 Diesel Kiki Co., Ltd., Tokio/Tokyo Druckausgleichsventil.
DE4202853A1 (de) * 1992-02-01 1993-08-05 Bosch Gmbh Robert Druckventil
GB9416784D0 (en) * 1994-08-19 1994-10-12 Lucas Ind Plc Pressure regulation valve
DE19706591A1 (de) * 1997-02-20 1998-08-27 Bosch Gmbh Robert Druckventil
DE19710891A1 (de) * 1997-03-15 1998-09-17 Bosch Gmbh Robert Druckventil

Non-Patent Citations (1)

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Title
See references of WO0001937A2 *

Also Published As

Publication number Publication date
US6497247B1 (en) 2002-12-24
DE29811791U1 (de) 1999-11-18
WO2000001937A2 (fr) 2000-01-13
JP2002519583A (ja) 2002-07-02
KR20010023467A (ko) 2001-03-26
WO2000001937A3 (fr) 2000-11-16

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