WO2013124138A1 - Soupape - Google Patents

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Publication number
WO2013124138A1
WO2013124138A1 PCT/EP2013/052058 EP2013052058W WO2013124138A1 WO 2013124138 A1 WO2013124138 A1 WO 2013124138A1 EP 2013052058 W EP2013052058 W EP 2013052058W WO 2013124138 A1 WO2013124138 A1 WO 2013124138A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
closing element
axial direction
abutment
sleeve
Prior art date
Application number
PCT/EP2013/052058
Other languages
German (de)
English (en)
Inventor
Daniela Zinic
Original Assignee
Mann+Hummel 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 Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Priority to CN201380010570.2A priority Critical patent/CN104136821B/zh
Priority to DE112013001134.4T priority patent/DE112013001134A5/de
Publication of WO2013124138A1 publication Critical patent/WO2013124138A1/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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means

Definitions

  • the present invention relates to a valve for controlling a fluid flow, in particular a gas flow.
  • Valves for controlling a gas flow are known. These are used for example in Luftentölmaschinen in vacuum pumps.
  • valves tend due to component tolerances in interaction with the partly pulsating gas flow to flutter and rattling. This can lead to various problems, such as increased wear or excessive noise. In order to avoid this flapping or rattling, there are different approaches, which are based on a tolerance compensation or damping.
  • a valve for controlling a fluid flow in particular a gas flow
  • the valve has a valve seat, a valve closing element and a coil spring.
  • the valve closing element seals in a closed position against the valve seat, or it closes partially to a minimum opening cross-section.
  • the valve closure member In an open position, the valve closure member is spaced from the valve seat and allows fluid flow through the valve.
  • the valve closing element can be actuated between the closed position and the open position in the axial direction.
  • the coil spring biases the valve closing member along the axial direction to the closed position. Further, the coil spring presses the valve closing element in the radial direction against an adjacent element.
  • the coil spring is thus assigned a double function, namely once to bias the valve closing element along the axial direction in the closed position and also to press the valve closure member in the radial direction against the adjacent element. Additional components to counteract the flutter or rattle are therefore not required.
  • the axial and radial directions are perpendicular to each other.
  • the spiral spring rests on the one hand against the valve closing element and on the other hand against an abutment, wherein a contact surface of the valve closing element and / or the abutment is arranged obliquely with respect to the axial direction
  • oblique means in the present case that the abutment surface with the axial direction forms an angle between 0 and 90 degrees, preferably between 90 and 60 degrees, and more preferably between 65 and 80 degrees
  • the oblique abutment surface causes the coil spring to curve and not extend straight, as in solutions known from the prior art.
  • the inclined contact surface may be formed on the valve closing element or on the abutment, or both, so that fluttering or rattling can at least be reduced without the aid of the inclined abutment surface additional components ile, for example, a leaf spring would be needed.
  • the adjacent element is formed as a guide sleeve, within which a valve cone of the valve closing element is arranged in the open position.
  • the spiral spring preferably presses the valve cone against an inner surface of the guide sleeve.
  • the valve closing element has a valve stem which is arranged inside the spiral spring.
  • a deformation of the spiral spring, in particular a buckling thereof, can be limited to a defined extent.
  • a valve stem of the valve closure member may extend into an aperture in the anvil.
  • the valve stem can thus be performed at least to some extent in the anvil.
  • the opening may, for example, have a diameter which is a few 100 ⁇ greater than the diameter of the valve stem. In this way, a tilting of the valve stem can be ensured, so that the valve cone comes into contact with the inner surface of the guide sleeve.
  • the abutment forms the adjacent element, against which the coil spring presses the valve closing element in the radial direction.
  • an obliquely arranged to the axial direction and / or curved coil spring is provided. It can be advantageously ensured by tilting the valve stem, that the valve stem comes into contact with the inner surface of the thrust bearing. This has the advantage that the friction occurring on the contact surface can serve or contribute exclusively, significantly or additionally to the damping of the valve.
  • the oblique abutment surface is formed on an edge of the opening of the abutment.
  • An edge is provided by the house and is particularly suitable as a contact surface.
  • the counter-bearing may be in the form of a sleeve.
  • it may be a circular cylindrical sleeve.
  • the edge extends along a sectional surface of a plane oriented obliquely to the axial direction. As a result, the inclined contact surface is generated in a simple manner.
  • annular segment-shaped portion extends in the axial direction from the edge of the sleeve.
  • the coil spring and / or the valve stem can be supported in particular.
  • in the open position of the valve cone of the valve stem is tilted relative to the anvil. This tilting can be limited by the ring segment-shaped section.
  • the counter-bearing can be connected by means of a plurality of webs with the guide sleeve. Between the webs openings for a passage of the fluid towards or be formed away from an opening bounded by the valve seat. The opening delimited by the valve seat is the opening which is closed by the valve plug when it is in the closed position. This results in a compact design.
  • the webs extend radially away from the anvil towards the guide sleeve.
  • the webs can connect radially on the outside to the sleeve forming the counterbearing on the one hand and to the inner surface of the guide sleeve on the other hand.
  • valve seat is formed in a cover of the valve.
  • the cover, the guide sleeve, the webs, the anvil, the valve cone and the valve stem can each be formed from plastic.
  • an air de-oiling element and a vacuum pump are provided with the valve according to the invention.
  • the Lucasentölelement is particularly interchangeable used in the vacuum pump.
  • FIG. 1 is a schematic view of an air de-oiling element, in particular a vacuum pump with an air de-oiling element, with a valve broken away in perspective and shown in exploded view;
  • Fig. 2 is a side view of the valve of Fig. 1, illustrating the curvature of a coil spring;
  • FIG. 3 is a sectional view III-III of Fig. 1; Fig. 4 is an enlarged detail IV of Fig. 3; and FIG. 5 shows a view V from FIG. 3.
  • FIG. 1 shows schematically an air de-oiling element 1 and in particular a vacuum pump 1 containing the air de-oiling element.
  • the air de-oiling element 1 comprises a perspective exploded and shown in exploded view valve 2.
  • the valve 2 is adapted to control a fluid flow, in particular a gas flow. This control function may include completely shutting off the fluid flow or also reducing or increasing the flow rate of the fluid flow through the valve 2.
  • the valve 2 has a valve seat 3, which is formed on a cover 4 of the valve 2 and defines an opening 6.
  • valve 2 comprises a valve closing element 5, which is composed of a valve cone 8 and a valve stem 9.
  • the valve cone 8 is in the position shown in Fig. 1 in a closed position in which it against the valve seat 3 fluid-tight, in particular gas-tight, seals and thus closes the opening 6.
  • the valve cone 8 may have grooves 7, which allow a certain fluid flow through the valve 2 even in the closed position of the valve cone 8.
  • the Poppet 8 is further positionable in an open position in which it is spaced from the valve seat 3. In this position, a fluid flow through the valve 2 is permitted. Depending on the distance, the fluid flow can be reduced or increased.
  • the valve 2 also has a guide sleeve 1 1.
  • the valve cone 8 is partially disposed within the guide sleeve 1 1 in the open position of the valve cone 8 shown in FIG.
  • FIG. 2 shows a side view from FIG. 1.
  • a coil spring 12 which is also part of the valve 2 and is supported, on the one hand, on the valve cone 8 and, on the other hand, on an abutment 13 of the valve 2.
  • the spiral spring 12 biases the valve cone 8 in the closed position, see FIG. 1, in the axial direction 21.
  • the valve stem 9 is disposed within the coil spring 12.
  • the coil spring 12 may be made for example of helically bent wire.
  • the wire may in particular have a circular cross-section.
  • the coil spring 12 is supported on the valve cone 8 at a dashed, because concealed, contact surface 14 shown conical side. On the counter bearing side, the spiral spring 12 is supported on an oblique abutment surface 15.
  • "Inclined” here means an angle 16 between a plane 17 (see Fig. 2) and the axial direction 21 which is not equal to 90 ° between 90 and 60 °, preferably between 65 and 80 °
  • the axial direction 21 is opposite to the main flow direction of the fluid through the valve 2. However, the axial direction 21 may also correspond to the main flow direction of the fluid through the valve 2.
  • FIG. 3 is a sectional view III-III of FIG. 1
  • FIG. 4 is an enlarged view IV of FIG. 3
  • FIG. 5 is a view V of Fig. 3 shows.
  • the counter-holder 13 has a tubular sleeve 22 with a circular cross-section.
  • the sleeve 22 connects via a plurality of webs 23 to an inner surface 24 of the guide sleeve 1 1 at.
  • the guide sleeve 1 1, the webs 23 and the anvil 13 can as a one-piece component 25, which is produced in particular by injection molding, be formed.
  • the valve stem 9 is fastened on the one hand to the valve cone 8. On the other hand, ie at its free end, the valve stem 9 projects into the opening 35 of the tubular sleeve 22.
  • the tubular sleeve 22 forms at its one end an edge which lies in the plane 17 and forms the inclined contact surface 15.
  • a projection 26 is preferably formed on the edge, see Fig. 4.
  • the projection 26 is, as can be seen in Fig. 5, formed ring-segment-shaped.
  • the wall thickness 27 (see FIG. 4) of the projection 26 is in particular tapered or offset relative to the wall thickness 31 of the tubular sleeve 22.
  • the projection 26 may have a bevel 32 at its free end.
  • valve 2 for reducing rattling or chattering
  • the coil spring 12 curves away from the axial direction 21 or the longitudinal axis of the valve stem 9.
  • the curving of the coil spring 12 causes the valve cone 8 in the open position at its edge 36 in the radial direction 37 against the inner surface 24th the guide sleeve 1 1 is pressed. This creates friction between the poppet 8 and the guide sleeve 1 1, which reduces or eliminates the flutter or rattling.
  • the projection 26 serves as a lateral abutment for the coil spring 12 and supports them in sections.
  • the friction can arise completely or partially on the valve stem.
  • the valve stem 9 of the valve closing element 5 protrudes into an opening in the abutment 13 and is preferably guided at least to some degree in the abutment 13.
  • the opening may, for example, have a diameter which is a few 100 ⁇ m larger than the diameter of the valve stem 9.
  • the radial force component of the obliquely arranged to the axial direction and / or curved Th spiral spring 12 is a tilting of the valve stem 9 ensures, so that the valve stem 9 comes into contact with the inner surface of the thrust bearing 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne une soupape (2) destinée à réguler un flux de fluide, en particulier un flux de gaz, laquelle comprend un siège de soupape (3), un élément de fermeture de soupape (5) qui peut être actionné dans le sens axial (21) entre une position de fermeture, dans laquelle il s'appuie de manière étanche contre le siège de soupape (3), et une position d'ouverture, dans laquelle il est écarté du siège de soupape (3) et autorise un flux de fluide à travers la soupape (2), ainsi qu'un ressort hélicoïdal (12) qui précontraint l'élément de fermeture de soupape (5) dans sa position de fermeture dans le sens axial (21) et qui pousse ledit élément de fermeture de soupape contre un élément adjacent (11) dans le sens radial (37).
PCT/EP2013/052058 2012-02-24 2013-02-01 Soupape WO2013124138A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201380010570.2A CN104136821B (zh) 2012-02-24 2013-02-01 阀门
DE112013001134.4T DE112013001134A5 (de) 2012-02-24 2013-02-01 Ventil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210003505 DE102012003505A1 (de) 2012-02-24 2012-02-24 Ventil
DE102012003505.5 2012-02-24

Publications (1)

Publication Number Publication Date
WO2013124138A1 true WO2013124138A1 (fr) 2013-08-29

Family

ID=47714053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/052058 WO2013124138A1 (fr) 2012-02-24 2013-02-01 Soupape

Country Status (3)

Country Link
CN (1) CN104136821B (fr)
DE (2) DE102012003505A1 (fr)
WO (1) WO2013124138A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013219086A1 (de) * 2013-09-23 2015-03-26 BSH Bosch und Siemens Hausgeräte GmbH Durchflussregeleinrichtung und Wasserspeicher
DE102014223697A1 (de) * 2014-11-20 2016-05-25 BSH Hausgeräte GmbH Durchflussregeleinrichtung und Wasserspeicher
EP3168514B1 (fr) * 2015-11-16 2020-11-04 Danfoss Power Solutions ApS Soupape de surpression hydraulique et machine hydraulique
DE102018124433B4 (de) * 2018-10-03 2022-04-28 Ias Gmbh Rückschlagventil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564815A (en) * 1946-08-03 1951-08-21 Simplex Engineering Company Relief valve
GB821628A (en) * 1956-03-14 1959-10-14 Weston Works Birmingham Ltd Improvements relating to fluid-pressure relief valves
DE2318744A1 (de) * 1973-04-13 1974-10-31 Wabco Westinghouse Gmbh Druckmittelsteuerorgan, insbesondere ueberstroemventil
DE2654077B1 (de) * 1976-11-29 1978-03-16 Siemens Ag Druckbegrenzungsventil
WO1992004566A1 (fr) * 1990-09-08 1992-03-19 Alfred Teves Gmbh Regulateur de pression, notamment pour commander le milieu sous pression dans des systemes hydrauliques de freinage a regulation du glissement
DE102009046119A1 (de) * 2009-10-28 2011-05-12 Robert Bosch Gmbh Ventil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263699A (en) * 1963-11-26 1966-08-02 Standard Screw Crankcase ventilation control means
US4930539A (en) * 1983-09-22 1990-06-05 501 Ocean B.V. Anti-fluttering check valve
DE3732077A1 (de) * 1987-09-24 1989-04-06 Wabco Westinghouse Fahrzeug Rueckschlagventil, insbesondere fuer druckluft
CN1080852C (zh) * 1997-05-23 2002-03-13 黄作兴 截止节流止回多功能阀
JP4066721B2 (ja) * 2002-06-17 2008-03-26 株式会社アドヴィックス チェック弁及びそのチェック弁を用いたブレーキアクチュエータ
JP2005083395A (ja) * 2003-09-04 2005-03-31 Nifco Inc 圧力開閉弁

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564815A (en) * 1946-08-03 1951-08-21 Simplex Engineering Company Relief valve
GB821628A (en) * 1956-03-14 1959-10-14 Weston Works Birmingham Ltd Improvements relating to fluid-pressure relief valves
DE2318744A1 (de) * 1973-04-13 1974-10-31 Wabco Westinghouse Gmbh Druckmittelsteuerorgan, insbesondere ueberstroemventil
DE2654077B1 (de) * 1976-11-29 1978-03-16 Siemens Ag Druckbegrenzungsventil
WO1992004566A1 (fr) * 1990-09-08 1992-03-19 Alfred Teves Gmbh Regulateur de pression, notamment pour commander le milieu sous pression dans des systemes hydrauliques de freinage a regulation du glissement
DE102009046119A1 (de) * 2009-10-28 2011-05-12 Robert Bosch Gmbh Ventil

Also Published As

Publication number Publication date
DE112013001134A5 (de) 2014-11-06
CN104136821B (zh) 2017-10-24
DE102012003505A1 (de) 2013-08-29
CN104136821A (zh) 2014-11-05

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