WO2014015852A1 - Siège de soupape - Google Patents

Siège de soupape Download PDF

Info

Publication number
WO2014015852A1
WO2014015852A1 PCT/DE2013/100208 DE2013100208W WO2014015852A1 WO 2014015852 A1 WO2014015852 A1 WO 2014015852A1 DE 2013100208 W DE2013100208 W DE 2013100208W WO 2014015852 A1 WO2014015852 A1 WO 2014015852A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat valve
valve
support
closing element
seat
Prior art date
Application number
PCT/DE2013/100208
Other languages
German (de)
English (en)
Inventor
Robert Deipenwisch
Original Assignee
Ixetic Bad Homburg 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 Ixetic Bad Homburg Gmbh filed Critical Ixetic Bad Homburg Gmbh
Publication of WO2014015852A1 publication Critical patent/WO2014015852A1/fr

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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element

Definitions

  • German Offenlegungsschrift DE 101 48 960 A1 discloses a pressure limiting valve for gaseous media with a valve body which is provided with a valve body
  • the valve body is substantially cylindrical and on the side facing the sealing seat has a suitable receptacle, by means of which an insert is arranged with a carrier element for an elastomer coating.
  • a similar pressure relief valve with a valve body is known, which, at least partially, is formed by an elastomer plate.
  • the object of the invention is to improve the performance of a poppet valve with a
  • a seat valve with a closing element made of an elastomeric material in that the closing element made of the elastomeric material is combined with a supporting element which is formed from a supporting material which is not elastic or at least significantly less elastic than the elastomeric material, from which the closing element is formed. It has been found in investigations made within the scope of the present invention that in conventional seat valves it may happen that the closure element of the elastomeric material is prone to sticking. This means that the closing element of the seat valve remains stuck in its closed position. Under unfavorable conditions, this adhesive effect can be so great that a vacuum provided by a vacuum pump is insufficient to open the seat valve.
  • the seat valve according to the invention is preferably associated with a wet-running and mechanically driven vacuum pump in a motor vehicle.
  • the seat valve is assigned to the inlet side of the vacuum pump.
  • One of the purposes of the poppet valve is to reduce unwanted oil entry into a connection line from the inlet side of the vacuum pump to a brake booster.
  • the seat valve is preferably designed as a spring-plate valve.
  • the combined with the support member closing element is a kind of plate.
  • the elastomeric material may be a natural elastomer, such as rubber, or a synthetic elastomer.
  • a preferred embodiment of the poppet valve is characterized in that the support element has at least one contact surface, which comes into abutment in a closed position of the poppet valve on a valve housing surface on which the closing element in the closed position of the poppet valve comes to rest. In the closed position of the seat valve both the support element and the closing element come to the valve housing surface to the plant. According to one aspect of the invention, the size of the contact surface, with which the closing element comes to rest on the valve housing surface, compared to conventional seat valves is reduced. The closing element is supported in the closed position of the seat valve by the support element. In this case, the support element acts as a spacer between a main body of the closing element and the valve housing surface.
  • a further preferred embodiment of the poppet valve is characterized in that a contact surface with which the closing element in the closed position of the poppet valve sealingly abuts against the valve housing surface is reduced by the support element. Due to the supporting effect or spacing effect of the support element, the contact surface with which the closing element in the closed position of the seat valve sealingly comes to rest against the valve housing surface can be considerably reduced.
  • a further preferred embodiment of the poppet valve is characterized in that the support element is arranged in the closed position of the poppet valve as a spacer between a base body of the closing element of the elastomeric material and the valve housing surface.
  • the main body of the closing element has substantially the shape of a circular disk.
  • a further preferred embodiment of the poppet valve is characterized in that from the main body of the closing element, an annular body extends, which surrounds the support element.
  • the annular body is preferably integrally connected to the main body of the closing element.
  • the annular body of the closing element preferably has a rectangular ring cross section.
  • a further preferred embodiment of the seat valve is characterized in that the annular body of the closing element merges on its side facing away from the main body in a circumferential sealing lip.
  • the main body, the annular body and the sealing lip of the closing element are preferably integrally connected to each other. By the sealing lip, the contact surface between the closing element and the valve housing surface can be reduced particularly advantageous.
  • a further preferred embodiment of the poppet valve is characterized in that the support element comprises a support body which bears against the base body of the closure element within the annular body.
  • the support body preferably has the shape of a circular disk whose outer diameter corresponds to the inner diameter of the annular body of the closing element.
  • the closing element can be supported in a simple manner in the closed position of the seat valve.
  • the support body gives the closure element a significantly increased stability.
  • a further preferred embodiment of the poppet valve is characterized in that from the support body of the support element emanates a support ring with which the support element comes into abutment in the closed position of the poppet valve on the valve housing surface.
  • the support ring is preferably integrally connected to the support body of the support element.
  • the support ring preferably has a rectangular ring cross-section. In the closed position of the seat valve, the support ring bears against the end face of the valve housing with a face remote from the support body of the support element. As a result, a stable support of the closing element is ensured by the support element.
  • the support element is designed as an insert, which is encapsulated with the closing element of the elastomeric material.
  • the support element is not completely encapsulated with the closing element.
  • the support body facing away from the end face of the support ring and the radially disposed within the support ring surface of the support body is not encapsulated with the elastomeric material.
  • the invention further relates to a vacuum pump with a seat valve described above.
  • the vacuum pump is preferably designed as a wet-running vacuum pump and mechanically driven.
  • the vacuum pump is designed, for example, as a vane pump.
  • the vacuum pump is preferably used in a motor vehicle to generate a vacuum. The generated vacuum is applied, for example, to a brake booster.
  • FIG. 1 shows a seat valve according to the invention in longitudinal section between a
  • FIG. 1 is an enlarged view of the seat valve of Figure 1 and
  • FIG. 3 shows an enlarged detail of the seat valve from FIG. 2.
  • FIG. 1 shows a seat valve 1 with a valve housing 4 in longitudinal section. Outside of the valve housing 4, a fastening eye 5 is formed.
  • the fastening eye 5 serves for fastening the poppet valve 1 to a support structure 6, for example a vacuum pump housing, preferably with the aid of a suitable screw.
  • a through hole 8 extends from a first end 1 1 through the valve housing 4 to a second end 12.
  • a brake booster 15 is connected to the first end of the valve housing 4 by means of a line 13.
  • the first end 1 1 of the valve housing 4 is formed as a connecting piece 14.
  • the second end 12 of the valve housing 4 is inserted directly into the housing of a vacuum pump, sealed with an O-ring 19 and secured to the mounting eye 5 by a screw or the like.
  • the second end 12 of the valve housing 4 is formed as a connecting piece 18.
  • the vacuum pump 20 is designed, for example, as a vane pump and mechanically driven.
  • the vacuum pump 20 preferably serves to generate a vacuum in a vacuum chamber of the brake booster 15.
  • the vacuum pump 20 is supplied in operation a lubricant medium, such as oil, in small quantities.
  • the seat valve 1 is used on the inlet side of the vacuum pump 20 to reduce unwanted oil entry into the line 13 to the brake booster 15, and to maintain the vacuum in the brake booster as far as possible when the vacuum pump.
  • the through-hole 8 extending through the valve housing 4 is, as can be seen in FIG. 2, subdivided into four longitudinal sections 21 to 24 with different inside diameters, some of which are not constant over the length.
  • the longitudinal section 21 of the Through hole 8 tapers starting from the first end 1 1 of the valve housing 4 cone-like.
  • the longitudinal section 22 has the smallest diameter of the through-hole 8.
  • the longitudinal section 23 has a larger diameter than the longitudinal section 22. Between the two longitudinal sections 22 and 23, a shoulder 25 is formed.
  • the paragraph 25 represents a valve housing surface, which is also referred to as a valve seat surface.
  • the longitudinal section 24 has a larger diameter than the longitudinal section 23. Between the two longitudinal sections 23 and 24, a shoulder 26 is formed.
  • the seat valve 1 is designed as a spring-plate valve.
  • Conventional spring-plate valves are equipped with a rubber plate as a closing element, for example.
  • the seat valve 1 comprises a valve body 30, in which a closing element 31 made of an elastomeric material is combined with a support element 32.
  • the elastomeric material of which the closure member 31 is formed may be a rubber material, that is, a natural elastomer. But it can also be used a synthetic elastomer.
  • the support member 32 is formed of another material that is not elastic or significantly less elastic than the elastomeric material of which the closure member 31 is formed.
  • the support member 32 is formed, for example, of metal and partially overmolded with the elastomeric material of which the closure member 31 is formed.
  • the valve body 30 is represented by a valve spring 35 in its in FIG.
  • the valve spring 35 is designed as a helical compression spring and biased in the connecting piece 18 of the valve housing 4 in the longitudinal direction between the valve body 30 and a cover 36.
  • the longitudinal direction is defined by a longitudinal axis 37 of the seat valve 1.
  • the cover 36 includes a through hole 38, which allows the operation of the air in the open state of the seat valve 1, the passage of air from the first end 1 1 through the through hole 8 to the second end 12 of the valve housing 4 of the seat valve 1.
  • Radially outwardly, the lid 36 comprises a circumferential collar, by means of which the cover 36 is fixed in the longitudinal section 24 of the through-hole 8, for example by pressing.
  • the closing element 31 comprises a base body 40, which essentially has the shape of a circular disk. From the main body 40, an annular body 41 extends to the valve housing surface 25. On its front side facing the valve housing surface 25, the annular body 41, as seen in FIG. 3, merges into a sealing lip 44.
  • the support element 32 comprises a support body 50, which has the shape of a circular disk. From the support body 50 is a support ring 51 goes out. The support ring 51 is located with his facing away from the support body 50 end face on the valve housing surface 25.
  • the support ring 51, as well as the ring body 41, has a rectangular cross-section.
  • the inner diameter of the support ring 51 corresponds approximately to the inner diameter of the through-hole 8 in the longitudinal section 22.
  • the outer diameter of the support body 50 and the support ring 51 corresponds to the inner diameter of the annular body 41 of the closing element 31.
  • the sealing lip 44 of the closing element 31 is spaced in the radial direction from the supporting ring 51 of the supporting element 32.
  • the contact surface between the closing element 31 and the valve housing surface 25 can be reduced in a particularly advantageous manner.
  • the sealing lip 44 rests on the valve housing surface 25 only with a very small contact surface.
  • the support member 32 is a spacer between the main body 40 of the closing element 31 and the valve housing surface 25.
  • an otherwise occurring undesirable plastic deformation of the closing element 31 can be reliably prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne un siège de soupape comprenant un élément de fermeture constitué d'un matériau élastomère. L'invention est caractérisée en ce que l'élément de fermeture constitué du matériau élastomère est combiné à un élément de support qui est constitué d'un matériau de support qui n'est pas élastique, ou qui est au moins nettement moins élastique que le matériau élastomère dont est constitué l'élément de fermeture.
PCT/DE2013/100208 2012-07-24 2013-06-11 Siège de soupape WO2014015852A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012106709.0 2012-07-24
DE102012106709 2012-07-24

Publications (1)

Publication Number Publication Date
WO2014015852A1 true WO2014015852A1 (fr) 2014-01-30

Family

ID=48782810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/100208 WO2014015852A1 (fr) 2012-07-24 2013-06-11 Siège de soupape

Country Status (1)

Country Link
WO (1) WO2014015852A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020065604A1 (fr) * 2018-09-27 2020-04-02 Athena S.P.A. Soupape de sécurité, et radiateur utilisant une telle soupape de sécurité

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511264C (de) * 1930-10-28 August Wichert Druckventil, insbesondere fuer Hochdruckpumpen
US2131928A (en) * 1935-09-30 1938-10-04 Baldwin Reinhold Slush pump valve and the like
US2608210A (en) * 1948-08-30 1952-08-26 Phillips Petroleum Co Relief valve
DE19913805A1 (de) 1999-03-26 2000-04-20 Bosch Gmbh Robert Druckbegrenzungs- und Sicherheitsventil
DE10148960A1 (de) 2000-10-06 2002-04-11 Luk Fahrzeug Hydraulik Druckbegrenzungsventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE511264C (de) * 1930-10-28 August Wichert Druckventil, insbesondere fuer Hochdruckpumpen
US2131928A (en) * 1935-09-30 1938-10-04 Baldwin Reinhold Slush pump valve and the like
US2608210A (en) * 1948-08-30 1952-08-26 Phillips Petroleum Co Relief valve
DE19913805A1 (de) 1999-03-26 2000-04-20 Bosch Gmbh Robert Druckbegrenzungs- und Sicherheitsventil
DE10148960A1 (de) 2000-10-06 2002-04-11 Luk Fahrzeug Hydraulik Druckbegrenzungsventil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020065604A1 (fr) * 2018-09-27 2020-04-02 Athena S.P.A. Soupape de sécurité, et radiateur utilisant une telle soupape de sécurité

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