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WO2015169481A1 - Soupape à diaphragme - Google Patents

Soupape à diaphragme Download PDF

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Publication number
WO2015169481A1
WO2015169481A1 PCT/EP2015/054889 EP2015054889W WO2015169481A1 WO 2015169481 A1 WO2015169481 A1 WO 2015169481A1 EP 2015054889 W EP2015054889 W EP 2015054889W WO 2015169481 A1 WO2015169481 A1 WO 2015169481A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm spring
valve
spring
diaphragm
inner sealing
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.)
Ceased
Application number
PCT/EP2015/054889
Other languages
German (de)
English (en)
Inventor
Siamend Flo
Frank Nitsche
Andreas PLISCH
Walter Maeurer
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
Priority to CN201580024017.3A priority Critical patent/CN106461103B/zh
Publication of WO2015169481A1 publication Critical patent/WO2015169481A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps peculiar thereto
    • 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
    • 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
    • F02M59/464—Inlet valves of the check valve type
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • 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
    • F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs

Definitions

  • the present invention relates to a diaphragm spring valve which is e.g. can be used as an inlet valve in a fuel pump, or a
  • Diaphragm spring which can be used in a diaphragm spring valve.
  • Such a diaphragm spring is known for example from GB 2478876B.
  • Such diaphragm spring valves have a diaphragm spring and a
  • Valve carrier with a valve seat and a through hole on.
  • Diaphragm spring has an inner seal member, an outer support member and a plurality of spring arms, which connects the inner seal member with the outer support member, and is fixed to the valve carrier.
  • the diaphragm spring lifts off from the valve seat and the medium can through the released cross section of
  • Diaphragm spring automatically by the restoring force of the spring arms. As soon as the diaphragm spring rests again on the valve carrier, it seals the
  • Closing process by the constantly reducing restoring force are slowing down, whereby the closing process can take longer. This makes an application of the known diaphragm spring in dynamic systems and / or partially pressureless systems very difficult.
  • the membrane spring valve according to the invention with the features of claim 1 has the opposite on the advantage that the valve dynamics and the
  • valve tightness of the diaphragm spring valve can be improved.
  • the membrane spring valve according to the invention can be used in partially pressureless systems. This is inventively achieved in that the
  • Diaphragm spring valve comprises a diaphragm spring which has a bias in the closed state of the diaphragm valve.
  • the bias can either by a plastic pre-deformation of the diaphragm spring per se before installation in the diaphragm spring valve or by a deformation of the
  • Diaphragm spring which exceeds the shape of the valve carrier when installing the
  • Diaphragm spring is generated in the diaphragm spring valve arise.
  • the diaphragm spring valve according to the invention comprises the valve carrier having a through hole, the diaphragm spring with an inner sealing member, an outer support member and a plurality of spring arms which connect the inner sealing member with the outer support member, wherein the diaphragm spring on
  • Valve carrier is arranged, and wherein the inner sealing member the
  • the diaphragm spring In the closed state of the diaphragm spring valve, the diaphragm spring is adapted to exert by means of the plurality of spring arms a bias on the inner sealing member to close the through hole and so in all
  • the valve carrier may have a first surface and a second surface which are arranged in two different mutually parallel planes, wherein in the closed state of the diaphragm spring valve, the inner sealing part of the diaphragm spring is arranged on the first surface and the outer support part is arranged on the second surface ,
  • Diaphragm spring be exercised by a structural adaptation of the valve carrier in a simple manner.
  • the valve carrier may, for example, have a projection, whereby the first and second surface arise.
  • the first surface on which the inner sealing member may be disposed may be formed on the projection.
  • the second surface then corresponds to the surface of the valve carrier, which surrounds the projection and on which the outer support member may be arranged.
  • the bias voltage can be adjusted directly over the height of the projection.
  • the diaphragm spring may be a flat diaphragm spring.
  • a flat diaphragm spring is a diaphragm spring to understand, the inner sealing member and outer support member in the unloaded state before installing the
  • Diaphragm spring lie in the diaphragm spring valve or on the valve carrier in a common plane.
  • a bias voltage can be ensured directly when installing the diaphragm spring in the diaphragm spring valve.
  • further steps for generating the bias voltage can be avoided.
  • the diaphragm spring may be a deformation diaphragm spring with plastically deformed spring arms.
  • a deformation diaphragm spring is to be understood a diaphragm spring whose inner sealing member and the outer support member in the unloaded state before installing the
  • Diaphragm spring in the diaphragm spring valve or on the valve carrier do not lie in a common plane.
  • diaphragm spring e.g. a flat diaphragm spring are mechanically opened so far that the spring arms are loaded beyond their elastic limit, wherein the plastic deformation remains when relaxing.
  • Deformation diaphragm spring can be adjusted depending on the application, the bias of the diaphragm spring so that even larger biases, for. in very dynamic systems without providing a projection on the valve carrier are possible. This can lead to a compact design of the diaphragm spring valve.
  • the inner sealing member and the outer support member may be in the closed state of the diaphragm spring valve in a common plane of the valve carrier, resulting in the generation of a bias of the
  • a minimum width of a spring arm may be less than a minimum distance between the spring arm and the inner seal member and less than a minimum distance between the spring arm and the outer support member.
  • the spring arms have no overlapping areas in the circumferential direction to each other.
  • a larger release cross section for the medium to be delivered can be ensured.
  • the flow of the medium to be pumped can be facilitated, whereby the pressure losses can be reduced.
  • the passage opening may be cylindrical or stepped.
  • the flow of the medium to be delivered in front of the diaphragm spring can thus be adjusted accordingly.
  • the present invention relates to a diaphragm spring having the features of claim 9.
  • the diaphragm spring according to the invention is a
  • Deformation diaphragm spring with plastically deformed spring arms Due to the plastic deformation of the spring arms, a bias of the spring arms of the deformation diaphragm spring can be ensured in the closed state of the diaphragm spring valve.
  • the present invention relates to a fuel pump, comprising a diaphragm spring valve and / or a diaphragm spring according to one of the preceding claims.
  • a clock-accurate function of the fuel pump or delivery of fuel can be made possible in a simple and cost-effective manner and delivery losses are reduced at the valve.
  • the present invention relates to a vehicle comprising a
  • a fail-safe and clock-accurate function of an internal combustion engine of the vehicle are made possible.
  • Figure 1 is a schematic, highly simplified sectional view of a
  • FIG. 2 is a plan view of the diaphragm spring valve shown in FIG.
  • FIG. 3 is a schematic, highly simplified sectional view of the FIG.
  • the diaphragm spring is a deformation diaphragm spring
  • Figure 4 is a perspective view of a flat diaphragm spring for
  • FIG. 5 is a side view of a flat diaphragm spring extended beyond its elastic limit for illustrating the
  • FIG. 6 is a side view of a deformation diaphragm spring
  • Figure 7 is a schematic, highly simplified sectional view of a
  • Diaphragm spring valve in the closed state according to a second embodiment of the present invention
  • Figure 8 is a schematic, highly simplified sectional view of the FIG.
  • Figure 9 is a sectional view of a portion of a fuel pump having two diaphragm spring valves according to the invention.
  • Diaphragm spring valve 1 according to a first preferred embodiment of the present invention described in detail.
  • the diaphragm spring valve 1 according to the invention comprises a valve carrier 2 with a graduated one
  • diaphragm spring 4 is a diaphragm spring to understand their inner sealing member 30 and the outer support member 31 in mechanical
  • the spring arms 42 connect the inner sealing member 30 with the outer support member 31, wherein the spring arms 42 is substantially arcuate in
  • the three spring arms 42 are uniformly distributed in the circumferential direction, namely at an angle ⁇ of 120 ° to each other, so that the spring arms 42 no overlap areas in
  • the spring arms 42 are formed so that a minimum width of a spring arm 42 is smaller than a minimum distance between the spring arm 42 and the outer support member 31 and smaller than a minimum distance between the spring arm 42 and the inner seal member 30.
  • the valve carrier 2, on which the deformation diaphragm spring 4 is disposed is formed cylindrically and has a diameter D2 which is slightly larger than the diameter D1 of the outer support member 31.
  • Diaphragm spring valve 1 in the assembled, closed state show.
  • the closed state of the diaphragm spring valve 1 means that no medium can flow through the diaphragm spring valve 1.
  • Figure 3 shows the diaphragm spring valve 1 according to the first embodiment of the present invention in an unassembled state. Accordingly, the diaphragm spring valve 1 according to the first embodiment of the present invention in an unassembled state. Accordingly, the diaphragm spring valve 1 according to the first embodiment of the present invention in an unassembled state. Accordingly, the diaphragm spring valve 1 according to the first embodiment of the present invention in an unassembled state. Accordingly, the
  • Flat diaphragm spring 3 with flat, not pre-formed spring arms 32 are used ( Figure 4).
  • a diaphragm spring 3 a diaphragm spring is to be understood that the inner sealing member 30 and the outer support member 31 are in mechanically relieved state prior to installation of the flat diaphragm spring 3 in the diaphragm spring valve 1 and the valve carrier 2 in a common plane E.
  • the flat diaphragm spring 3 is mechanically deformed in a direction R perpendicular to the plane E so far that the spring arms are uniformly loaded beyond their elastic limit (FIG. 5). This leaves after the
  • Valve carrier 2 the plastically deformed spring arms 42 are flattened ( Figure 1). Accordingly, in the closed state of the diaphragm spring valve 1 the inner seal member 30 and the outer support member 31 in a common plane E3.
  • the spring arms 42 exert in the assembled or in the closed state of the diaphragm spring valve 1, a bias, which is characterized by the arrow F in Figure 1, on the inner sealing member 30 to the
  • Diaphragm spring valve 1 according to a second preferred embodiment of the present invention described in detail.
  • the second embodiment of the diaphragm spring valve 1 according to the invention differs in principle from the first embodiment in that the bias, which is exerted on the inner sealing member 30, formed by the design of the valve carrier 2.
  • the valve carrier 2 has a cylindrical passage opening 20, a first surface 21 and a second surface 22, the first surface 21 and the second surface 22 being formed by the presence of a projection 23. Furthermore, the first surface 21 and the second surface 22 are not in a common plane but in two
  • the diaphragm spring is in the form of a flat diaphragm spring 3 of Figure 5, which is also seen in Figure 8, i. without plastically deformed spring arms.
  • FIG. 8 shows the diaphragm spring valve 1 according to the second exemplary embodiment of the present invention in an unassembled state, that is to say prior to installation of the flat membrane spring 3 in the diaphragm spring valve 1 or on the valve carrier 2.
  • the inner sealing member 30 of the diaphragm spring valve 1 which is shown in Figure 7, the inner sealing member 30 of the
  • the fuel pump 5 which is only partially shown, is in the form of a
  • the fuel pump 5 has a piston 50 for conveying fuel, a solenoid 51 for actuating the piston 50, and a return element 52 for returning the piston 50 to an initial position. Further, the fuel pump 5, a first inventive diaphragm valve 53 as an inlet valve, a second
  • Diaphragm valve 54 according to the invention on and a delivery chamber 55. Both diaphragm valves each comprise a deformation spring.
  • the fuel pump 5 sucks fuel via the first invention
  • Diaphragm valve 53 inlet valve
  • the sucked fuel is then in a second direction B, the actuation of the piston 50, the
  • Embodiment the use of a deformation diaphragm spring 4 instead of a flat diaphragm spring 3 also possible.
  • the diaphragm spring valve 1 By the diaphragm spring valve 1 according to the invention, the above-mentioned disadvantages of the prior art can be eliminated.
  • the closing operation of the diaphragm valve 1 can be performed faster and the sealing the passage opening 20 are ensured, which is based on the applied bias on the inner sealing member 30 of the invention
  • Diaphragm spring is based in the closed valve state. Furthermore, the diaphragm spring valve 1 according to the invention may e.g. be used in dynamic systems, which is particularly important e.g. for fuel pumps used in vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Springs (AREA)
  • Reciprocating Pumps (AREA)

Abstract

La présente invention concerne une soupape à diaphragme, qui comprend un support de soupape (2) ayant une ouverture traversante (20), un ressort diaphragme (3 ; 4) ayant une partie d'étanchéité interne (30), une partie d'appui externe (31) et une pluralité de bras de ressort (32 ; 42), qui relient la partie d'étanchéité interne (30) avec la partie d'appui externe (31), soupape dans laquelle le ressort diaphragme (3 ; 4) est disposé sur le support de soupape (2), et dans laquelle la partie d'étanchéité interne (30) ferme ou libère l'ouverture traversante (20) du support de soupape, caractérisée par le fait que, dans l'état fermé de la soupape à diaphragme, le ressort diaphragme (3 ; 4) est configuré, au moyen de la pluralité des bras de ressort (32 ; 42), pour exercer une précontrainte sur la partie d'étanchéité interne (30), afin de fermer l'ouverture traversante (20). La présente invention concerne en outre un ressort diaphragme, qui est conçu comme un ressort diaphragme de déformation ayant des bras de ressort (42) déformés de manière plastique.
PCT/EP2015/054889 2014-05-08 2015-03-10 Soupape à diaphragme Ceased WO2015169481A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580024017.3A CN106461103B (zh) 2014-05-08 2015-03-10 膜片弹簧阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014208618.3 2014-05-08
DE102014208618.3A DE102014208618A1 (de) 2014-05-08 2014-05-08 Membranfederventil

Publications (1)

Publication Number Publication Date
WO2015169481A1 true WO2015169481A1 (fr) 2015-11-12

Family

ID=52633283

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/054889 Ceased WO2015169481A1 (fr) 2014-05-08 2015-03-10 Soupape à diaphragme

Country Status (3)

Country Link
CN (1) CN106461103B (fr)
DE (1) DE102014208618A1 (fr)
WO (1) WO2015169481A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089685A (zh) * 2016-08-23 2016-11-09 清华大学苏州汽车研究院（吴江） 一种隔膜泵单向阀
DE102017220229A1 (de) * 2017-11-14 2019-05-16 Audi Ag Rückschlagventilelement für eine Rückschlagventilbaugruppe sowie entsprechende Rückschlagventilbaugruppe
DE102018200101A1 (de) * 2018-01-05 2019-07-11 Continental Automotive Gmbh Kraftstoffhochdruckpumpe
CN108119675A (zh) * 2018-02-22 2018-06-05 济南百惠凯希汽车零部件有限公司 一种单向阀及使用该单向阀的辅助制动气缸
DE102024204546A1 (de) 2024-05-16 2025-11-20 Robert Bosch Gesellschaft mit beschränkter Haftung Gassensor und Verfahren zur Herstellung eines Gassensors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250856A (fr) * 1925-05-14 1926-04-22 Thyssen & Co. Aktiengesellschaft
US2015915A (en) * 1933-03-02 1935-10-01 Charles G Adsit Valve structure
US4314797A (en) * 1978-02-09 1982-02-09 J. Eberspacher Metering piston pump
WO1996024791A1 (fr) * 1995-02-09 1996-08-15 Pradip Choksi Valve a debit unidirectionnel a faible pression d'actionnement
EP1555469A1 (fr) * 2004-01-15 2005-07-20 Knf Flodos Ag Soupape de retenue
WO2005119026A2 (fr) * 2004-05-28 2005-12-15 Ford Global Technologies, Llc Soupape de regulation de debit a rigidite variable
GB2452954A (en) * 2007-09-20 2009-03-25 Scion Sprays Ltd A fluid injector having a reed valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329652A1 (de) * 1983-08-17 1985-02-28 Steuerungstechnik Staiger GmbH & Co Produktions-Vertriebs-KG, 7121 Erligheim Rueckschlagventil
EP1429060B1 (fr) * 2002-12-13 2007-04-11 Continental Aktiengesellschaft Valve de décharge pour compresseur
DE102008031450A1 (de) * 2008-07-04 2010-01-07 Gardner Denver Thomas Gmbh Pumpe
GB2469078B (en) 2009-03-31 2012-04-11 Scion Sprays Ltd A fluid injector having a novel inlet valve arrangement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250856A (fr) * 1925-05-14 1926-04-22 Thyssen & Co. Aktiengesellschaft
US2015915A (en) * 1933-03-02 1935-10-01 Charles G Adsit Valve structure
US4314797A (en) * 1978-02-09 1982-02-09 J. Eberspacher Metering piston pump
WO1996024791A1 (fr) * 1995-02-09 1996-08-15 Pradip Choksi Valve a debit unidirectionnel a faible pression d'actionnement
EP1555469A1 (fr) * 2004-01-15 2005-07-20 Knf Flodos Ag Soupape de retenue
WO2005119026A2 (fr) * 2004-05-28 2005-12-15 Ford Global Technologies, Llc Soupape de regulation de debit a rigidite variable
GB2452954A (en) * 2007-09-20 2009-03-25 Scion Sprays Ltd A fluid injector having a reed valve

Also Published As

Publication number Publication date
CN106461103B (zh) 2019-10-25
CN106461103A (zh) 2017-02-22
DE102014208618A1 (de) 2015-11-12

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