WO2015132043A1 - Soupape destinée notamment à un amortisseur de vibrations - Google Patents

Soupape destinée notamment à un amortisseur de vibrations Download PDF

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Publication number
WO2015132043A1
WO2015132043A1 PCT/EP2015/052584 EP2015052584W WO2015132043A1 WO 2015132043 A1 WO2015132043 A1 WO 2015132043A1 EP 2015052584 W EP2015052584 W EP 2015052584W WO 2015132043 A1 WO2015132043 A1 WO 2015132043A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
spring element
contact surface
valve according
disc
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/EP2015/052584
Other languages
German (de)
English (en)
Inventor
Ingo Gelhausen
Michael Hegmann
Arndt Lindemann
Dirk Litterscheid
Peter Wirth
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of WO2015132043A1 publication Critical patent/WO2015132043A1/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3485—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of supporting elements intended to guide or limit the movement of the annular discs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/08—Wound springs with turns lying in mainly conical surfaces, i.e. characterised by varying diameter
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs

Definitions

  • the invention relates to a valve, in particular for a vibration damper according to the preamble of patent claim 1.
  • a valve for a vibration damper that has a valve body with axial passageways, which are covered by at least one valve disc.
  • the valve disc is biased by a conical spring against a valve seat surface.
  • No. 5,529,154 discloses a damping valve with a valve disk arrangement in which a valve disk has a notch in order to provide a free space for a deformation of an elastic valve disk.
  • a segmented support disk for a valve disk by way of example is also referred to DE 29 09 278 A1.
  • DE 29 09 278 A1 There is also the approach of providing an asymmetric pressurized surface for the valve pad.
  • DE 1 1 2006 002 168 T5 should be mentioned. All these measures, however, represent comparatively profound changes to a valve, which are not so easy to transfer to an existing valve system.
  • the object of the present invention is to provide a defined opening behavior of a valve, wherein the means used for this purpose can be used as simply as possible in an already existing valve concept.
  • the object is achieved in that the spring element has a spring force action line which acts eccentrically on the at least one valve disc.
  • the spring element in the unstressed state has a curved line of action by at least one end-side contact surface of the spring element and a valve-side contact surface are aligned obliquely to each other.
  • a support plate for the spring element then far the support plate a perpendicular to the main axis extending support surface and the spring element to a sloping contact surface.
  • end-side abutment surface of the spring element may lie asymmetrically with respect to the valve disk side relative to a central axis of the valve disk.
  • a design could z. B. be configured such that a first contact surface and a second contact surface of the spring element are eccentric to each other.
  • a contact surface may have a geometry deviating from a circular surface. Thus, a uniform support of the valve disc is deliberately canceled. If the valve disc is loaded by a pressure medium, then lifts the valve disc in the area of lesser support by the spring element first.
  • the spring element is designed as a wire spring, as a wire spring simplifies a large Abhubweg the valve disc.
  • a wire spring offers the possibility that the wire cross-section has a smaller bending resistance moment at a first valve disk-side surface area than at a second valve disk-side surface area. This reduces the closing force of the spring element z. B. in a certain area of the contact surface.
  • the first abutment surface and the second abutment surface are connected via a connecting region arranged on one side to a central axis of the spring element.
  • the end-side abutment surface may be concentric with each other and still a one-sided Abhub the valve disc is achieved because the closing force is not constant relative to the contact surface.
  • the contact surface of the spring element may have an area which is angled relative to the valve disk. Also in this design, the supporting force of the valve disc is reduced in a certain range.
  • Fig. 1 valve, in particular for a vibration damper
  • FIGS. 2 to 10 different embodiments of the spring element according to FIG. 1
  • Fig. 1 the lower end of a twin-tube vibration damper 1 is shown in longitudinal section.
  • a cylinder 3 is limited by a valve body 5 in a container 7 of the vibration damper.
  • the valve body 5 has a check valve 9 and a damping valve 1 1, wherein the check valve 9 are associated with passage channels 13 and the damping valve 1 1 with passageways 15 cooperates.
  • Both valves 9, 1 1 close at least partially each an exit side of the passageways 13, 15, by at least one valve disc 17, 19 rests on a valve seat 21, 23 and is biased by a spring element 25, 27 in the closing direction.
  • An existing in the cylinder 3 and filled with damping fluid working chamber 29 is hydraulically connected by the present in the valve body 5 through passages 13; 15 with an arranged between the outer wall 31 of the cylinder 3 and the inner wall of the container 7 compensation chamber 31.
  • a piston rod 33 moves in and out of the cylinder 3, whereby the corresponding piston rod volume is displaced from the working chamber 29 via the damping valve 1 1 and the passageways 15 into the compensation chamber 31 during retraction.
  • the piston rod 33 is extended out of the cylinder 3, the quantity of damping fluid corresponding to the extending piston rod volume is conveyed out of the compensation chamber 31 via the passage channels 13 and the check valve 9 into the working space 29.
  • the compensation chamber 31 has for this purpose in most cases except the Dämpf folkkeits spallung a gas cushion.
  • Figures 2 and 3 show a variant of the spring element 27 as a single part, which is designed as a wound wire spring.
  • the spring element 27 has at its end turns 35; 37 via a contact surface, wherein the first abutment surface 39 on a valve-side contact surface 43 (FIG. 1), in this case directly the valve disc top, and the second abutment surface 41 rests against a collar 45 of a valve nut 47 (FIG.
  • the spring element 27 is spirally wound, wherein the spring element 27 in the unstressed state shown in FIG. 2 has a curved line of action 49, so that the spring force action line in the installed state of the spring element according to FIG. 1 acts eccentrically on the valve disk 19. It can be seen that the contact surface 41 of the spring element 27 pointing in the direction of the valve nut 47 and the valve-side contact surface 43 are aligned obliquely with respect to one another.
  • FIG. 4 shows a modification to the variant according to FIG. 2 and FIG. 3.
  • the contact surfaces 39, 41 of the end turns 35, 37 can be designed according to FIGS. 2 and 3, but also run parallel within the production tolerances.
  • the essential difference is that the end-side abutment surface 39 of the spring element 27 abuts the valve disk side asymmetrically with respect to the central axis 51 of the valve disk 19.
  • the contact surfaces 39; 41 of the spring element 27 eccentric to each other and the valve-side abutment surface 39 has a deviating from a circular area geometry.
  • the contact surface 39 is elliptical. In particular, when using an elastic valve disc 19, two effects set.
  • valve disk 19 there are different lever lengths on the valve disk 19, 1 2 , since the valve write 19 is of circular design and the passage channels 13 (FIG Partial circle are arranged.
  • the spring element 27 does not exert a uniform support effect on the elastic valve disk 19. The support effect in one axis is lower with l 2 than according to a second axis.
  • FIGS. 7 and 8 show a spring element 27, in which the abutment surface 39 has an area 57 angled relative to the valve disc.
  • the abutment surface 39 is virtually a closed circumferential region of 360 °, but in the front view according to FIG. 7 it does not rest on the entire surface, but forms a deformation space 59 for the elastic valve disk 19.
  • the valve disc 19 does not necessarily have to be elastic, but then comes next to the one-sided support of the valve disc 19, a further effect to control the Abhub s the valve disc 19 added.
  • FIG. 9 shows a schematic diagram of a spring element 27, the two closed contact surfaces 39; 41, which are connected via a one-sided to a central axis 61 of the spring element 27 arranged connecting portion 63 with each other.
  • the connection region 61 does not necessarily have to be integral with the contact surfaces 39; 41 produced. A welded connection would also be possible.
  • Also features of the other variants could be incorporated into the design of FIG. 9.
  • a spring element 27 as a wire spring has a smaller bending resistance torque at a first valve disk-side contact surface area 39 KB, than at a second valve disk-side contact surface area 39 GB.
  • the invention is not limited to the embodiment of a bottom valve or a check valve, but is also useful in other valves, especially in a vibration damper.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne une soupape (9) destinée notamment à un amortisseur de vibrations (1), comprenant un corps de soupape (5) sur lequel au moins un disque de soupape (19) recouvre au moins partiellement au moins un côté de sortie d'un canal de passage (13). Le disque de soupape (19) est précontraint par un élément élastique (27) sur une surface de siège (23) de la soupape (9), cet élément élastique (27) présentant une ligne d'action de force élastique qui est appliquée de manière excentrique audit disque de soupape (19).
PCT/EP2015/052584 2014-03-03 2015-02-09 Soupape destinée notamment à un amortisseur de vibrations Ceased WO2015132043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014203842.1A DE102014203842A1 (de) 2014-03-03 2014-03-03 Ventil, insbesondere für einen Schwingungsdämpfer
DE102014203842.1 2014-03-03

Publications (1)

Publication Number Publication Date
WO2015132043A1 true WO2015132043A1 (fr) 2015-09-11

Family

ID=52464391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/052584 Ceased WO2015132043A1 (fr) 2014-03-03 2015-02-09 Soupape destinée notamment à un amortisseur de vibrations

Country Status (2)

Country Link
DE (1) DE102014203842A1 (fr)
WO (1) WO2015132043A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107143602A (zh) * 2017-04-13 2017-09-08 安徽奥泰粉末冶金有限公司 一种汽车用减震阀座

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019209758B3 (de) * 2019-07-03 2020-11-26 Zf Friedrichshafen Ag Dämpfventil für einen Schwingungsdämpfer
DE102019209761A1 (de) * 2019-07-03 2021-01-07 Zf Friedrichshafen Ag Dämpfventil für einen Schwingungsdämpfer
DE102020209804A1 (de) 2020-08-04 2022-02-10 Zf Friedrichshafen Ag Dämpfventil für einen Schwingungsdämpfer
DE102022206538A1 (de) 2022-06-28 2023-12-28 Zf Friedrichshafen Ag Bodenventil mit einer Spanneinrichtung sowie Schwingungsdämpfer und Montageverfahren mit dem Bodenventil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109398A1 (de) * 1971-02-27 1972-09-07 Fichtel & Sachs Ag Stoßdämpferventil mit kontinuierlichem Übergang
EP1120580A2 (fr) * 2000-01-28 2001-08-01 Chuo Hatsujo Kabushiki Kaisha Ressort de compression hélicoidal incurvé
US20020125623A1 (en) * 2001-03-09 2002-09-12 Kessen Jeffrey Steven Spring having coils of varying diameters
DE102010040458A1 (de) * 2010-09-09 2012-03-15 Zf Friedrichshafen Ag Dämpfventil für einen Schwingungsdämpfer
DE102010062324A1 (de) * 2010-12-02 2012-06-06 Zf Friedrichshafen Ag Dämpfventilanordnung für einen Schwingungsdämpfer

Family Cites Families (13)

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AT239426B (de) * 1963-07-04 1965-04-12 Enfo Grundlagen Forschungs Ag Selbsttätiges Ventil, insbesondere für Kolbenverdichter
DE2002078A1 (de) * 1970-01-19 1971-07-29 Boge Gmbh Federbelastetes Ventil fuer hydraulische Teleskopdaempfer,insbesondere fuer Kraftfahrzeuge
DE2500826C2 (de) 1975-01-10 1983-03-24 Volkswagenwerk Ag, 3180 Wolfsburg Ventilanordnung für einen Teleskopschwingungsdämpfer für die Radaufhängung von Kraftfahrzeugen
DE2616897A1 (de) 1976-04-15 1977-10-27 Volkswagenwerk Ag Bodenventil-anordnung fuer einen hydraulischen stossdaempfer
IT1107118B (it) 1978-03-14 1985-11-18 Iao Industrie Riunite Spa Perfezionamenti negli ammortizzatori idraulici del tipo telescopico
DE3523628A1 (de) * 1985-07-02 1987-01-15 Bayerische Motoren Werke Ag Ventilsystem fuer steuerbare, hydraulische schwingungsdaempfer
DE4124326C1 (fr) * 1991-07-23 1992-04-16 Krupp Brueninghaus Gmbh, 5980 Werdohl, De
JP3471438B2 (ja) 1993-12-06 2003-12-02 株式会社ショーワ 緩衝器のバルブ構造
DE10207506A1 (de) * 2002-02-22 2003-09-04 Volkswagen Ag Dämpferventil mit Voröffnungsfunktion
US20080017255A1 (en) * 2004-09-10 2008-01-24 Danfoss A/S Spring and a Valve Incorporating Such a Spring
US20070034466A1 (en) 2005-08-15 2007-02-15 Tenneco Automotive Operating Company, Inc. Asymmetrical intake damper valve
SE533996C2 (sv) * 2009-04-23 2011-03-22 Oehlins Racing Ab Tryckregulator i en stötdämparventil
US9169890B2 (en) * 2011-07-21 2015-10-27 Tenneco Automotive Operating Company Inc. Low noise valve assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109398A1 (de) * 1971-02-27 1972-09-07 Fichtel & Sachs Ag Stoßdämpferventil mit kontinuierlichem Übergang
EP1120580A2 (fr) * 2000-01-28 2001-08-01 Chuo Hatsujo Kabushiki Kaisha Ressort de compression hélicoidal incurvé
US20020125623A1 (en) * 2001-03-09 2002-09-12 Kessen Jeffrey Steven Spring having coils of varying diameters
DE102010040458A1 (de) * 2010-09-09 2012-03-15 Zf Friedrichshafen Ag Dämpfventil für einen Schwingungsdämpfer
DE102010062324A1 (de) * 2010-12-02 2012-06-06 Zf Friedrichshafen Ag Dämpfventilanordnung für einen Schwingungsdämpfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107143602A (zh) * 2017-04-13 2017-09-08 安徽奥泰粉末冶金有限公司 一种汽车用减震阀座

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Publication number Publication date
DE102014203842A1 (de) 2015-09-03

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