WO2008132014A1 - Dispositif d'étanchéité de passage d'huile de parties immobiles à rotatives - Google Patents

Dispositif d'étanchéité de passage d'huile de parties immobiles à rotatives Download PDF

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Publication number
WO2008132014A1
WO2008132014A1 PCT/EP2008/053975 EP2008053975W WO2008132014A1 WO 2008132014 A1 WO2008132014 A1 WO 2008132014A1 EP 2008053975 W EP2008053975 W EP 2008053975W WO 2008132014 A1 WO2008132014 A1 WO 2008132014A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner ring
oil flow
stationary
seal
rotating parts
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/EP2008/053975
Other languages
German (de)
English (en)
Inventor
Dietmar Illerhaus
Klaus Müller
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 WO2008132014A1 publication Critical patent/WO2008132014A1/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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/441—Free-space packings with floating ring
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types

Definitions

  • the present invention relates to an oil flow seal from stationary to rotating parts according to the preamble of claim 1.
  • a druckstoffbeetzschlagbares radial bearing which is designed as a rolling bearing and between two rotating at a differential speed gear elements, preferably between a shaft and a concentrically surrounding hollow shaft is arranged, wherein by means of the radial bearing flowing hydraulic pressure means a multi-plate clutch is engageable.
  • Radial sealing rings are provided between the gear elements in the region of the radial bearing on both sides, the rolling elements of the radial bearing being guided in a cage bearing needles and wherein the cage is provided with several preferably uniformly distributed on the circumference radial openings for the flow of the pressure medium.
  • the plate carrier is made of steel;
  • the standing wave or the intermediate plate is usually made of aluminum.
  • conventional oil flow seals may not function satisfactorily due to the tribological properties of a material, such as aluminum.
  • the present invention has for its object to provide an oil flow seal from stationary to rotating parts, which ensures a sufficient seal.
  • the oil flow seal of the present invention is intended to ensure a sufficient seal.
  • an oil flow seal is proposed from stationary to rotating parts, which has an inner ring, which is preferably made of steel, is pressed onto the standing part and has a plurality of oil flow openings.
  • the inner ring is U-shaped, with the legs of the inner ring extending radially outward (towards the rotating part). Furthermore, two rectangular rings (rings with rectangular cross-section) are provided, which are arranged in the direction of oil flow or radially between the inner ring and the rotating part and seal against one leg of the inner ring and the rotating part by conditioning.
  • Each rectangular ring has a plurality of extending in the direction of the other ring spacers, such as spacer bolts on.
  • the spacers are used to prevent axial displacement of the rectangular rings and thus to ensure a secure seal. By the spacers is further ensured that the rectangular rings abut the legs of the inner ring (the length of the spacers corresponds to the distance between the opposite sides of the rectangular rings in mounted position).
  • the spacers are preferably produced by injection molding.
  • Figure 1 A schematic sectional view of an oil flow seal according to the invention.
  • Figure 2 A perspective view of the two rectangular rings according to the invention.
  • a part of a standing wave or intermediate plate 1 is shown made of aluminum, to be passed through the corresponding openings 3 oil or pressure medium for actuating a louver switching element.
  • the oil or the pressure medium should then be passed through openings 4 of the outer disk carrier 2 made of steel 2 of the switching element to get into the corresponding pressure chamber.
  • the oil flow seal according to the invention from stationary to rotating parts comprises an inner ring 5, which is preferably made of steel, is pressed onto the intermediate plate 1 and has a plurality of oil flow openings.
  • the pressed-on inner ring 5 is U-shaped, with the legs 6, 7 of the inner ring 5 radially outwardly extending.
  • two rectangular rings 8, 9 are provided for sealing against the legs 6, 7 of the inner ring 5 and against the outer disk carrier 2, which are radially disposed between the inner ring 5 and the rotating part, ie the outer disk carrier 2, and versus each seal a leg 6, 7 of the inner ring and the outer disk carrier 2 by conditioning.
  • a perspective view of the rectangular rings 8, 9 is the subject of FIG. 2.
  • the rectangular rings 8, 9 each have a plurality of axially extending in the direction of the other ring extending spacer bolt 10 to ensure the investment in the respective ring 8, 9 associated leg 7, 6 of the inner ring 5 and thus a sufficient seal against the inner ring ,
  • spacer bolts 10 is ensured in an advantageous manner that the rectangular rings 8, 9 abut against the legs 7, 6 of the inner ring 5, since the length of the spacer pin 10 corresponds to the distance between the opposite sides of the rectangular rings 8, 9 in the mounted position.
  • the rectangular rings 8, 9 and the spacer bolts are preferably made of a high performance plastic. It is particularly advantageous if the rings 8, 9 are made of polyamide-imide, e.g. Torion ® are produced, which has very good mechanical properties.
  • the oil flow seal of the present invention is particularly suitable for use as an oil flow seal of standing-to-rotating parts made of different materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un dispositif d'étanchéité de passage d'huile de parties immobiles à rotatives, comprenant une bague intérieure (5), plaquée contre la partie immobile (1) et présentant plusieurs ouvertures de passage d'huile (3), la bague intérieure (5) étant conçue sous la forme d'un U et les branches (6, 7) de la bague intérieure (5) s'étendant vers l'extérieur, vues dans le sens radial. L'invention vise à assurer une étanchéité vis-à-vis des branches (6, 7) de la bague intérieure (5) et vis-à-vis de la partie rotative (2). A cet effet, deux bagues à section rectangulaire (8, 9) sont disposées, vues dans le sens radial, entre la bague intérieure (5) et la partie rotative (2), et assurent une étanchéité par contact vis-à-vis d'une branche respective (6, 7) de la bague intérieure et de la partie rotative (2).
PCT/EP2008/053975 2007-04-25 2008-04-03 Dispositif d'étanchéité de passage d'huile de parties immobiles à rotatives Ceased WO2008132014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007019462.7 2007-04-25
DE102007019462A DE102007019462A1 (de) 2007-04-25 2007-04-25 Öldurchflussabdichtung von stehenden zu drehenden Teilen

Publications (1)

Publication Number Publication Date
WO2008132014A1 true WO2008132014A1 (fr) 2008-11-06

Family

ID=39616619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/053975 Ceased WO2008132014A1 (fr) 2007-04-25 2008-04-03 Dispositif d'étanchéité de passage d'huile de parties immobiles à rotatives

Country Status (2)

Country Link
DE (1) DE102007019462A1 (fr)
WO (1) WO2008132014A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531748A (en) * 1984-03-30 1985-07-30 Chicago Rawhide Manufacturing Co. Fluid seal with unitary wear sleeve element
EP0362921A2 (fr) * 1988-10-03 1990-04-11 Skf Industrie S.P.A. Joint rotatif défini dans un palier à roulements assurant la connexion entre deux réservoirs de fluides de pressions différentes, dont au moins un est rotatif par rapport à l'autre
US5188374A (en) * 1992-06-01 1993-02-23 General Motors Corporation One-piece seal for rotating annular interface
DE4332032A1 (de) * 1993-09-21 1995-03-23 Schaeffler Waelzlager Kg Druckmittelbeaufschlagbares Radiallager
EP0731301A1 (fr) * 1995-02-16 1996-09-11 Kabushiki Kaisha Riken Anneau et dispositif d'étanchéité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021146A (en) * 1958-01-10 1962-02-13 Us Industries Inc Seals
DE1936776U (de) * 1966-01-28 1966-04-14 Edgar Von Ruedgisch Verteilerblock zum verbinden eines ortsfesten druck- und/oder saugluftanschlusses mit um den block rotierenden luftschlaeuchen.
JP4601942B2 (ja) * 2003-11-20 2010-12-22 イーグル工業株式会社 シール装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531748A (en) * 1984-03-30 1985-07-30 Chicago Rawhide Manufacturing Co. Fluid seal with unitary wear sleeve element
EP0362921A2 (fr) * 1988-10-03 1990-04-11 Skf Industrie S.P.A. Joint rotatif défini dans un palier à roulements assurant la connexion entre deux réservoirs de fluides de pressions différentes, dont au moins un est rotatif par rapport à l'autre
US5188374A (en) * 1992-06-01 1993-02-23 General Motors Corporation One-piece seal for rotating annular interface
DE4332032A1 (de) * 1993-09-21 1995-03-23 Schaeffler Waelzlager Kg Druckmittelbeaufschlagbares Radiallager
EP0731301A1 (fr) * 1995-02-16 1996-09-11 Kabushiki Kaisha Riken Anneau et dispositif d'étanchéité

Also Published As

Publication number Publication date
DE102007019462A1 (de) 2008-11-06

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