DE102011076796A1 - Rotary feedthrough with sealing sleeve - Google Patents

Rotary feedthrough with sealing sleeve

Info

Publication number
DE102011076796A1
DE102011076796A1 DE201110076796 DE102011076796A DE102011076796A1 DE 102011076796 A1 DE102011076796 A1 DE 102011076796A1 DE 201110076796 DE201110076796 DE 201110076796 DE 102011076796 A DE102011076796 A DE 102011076796A DE 102011076796 A1 DE102011076796 A1 DE 102011076796A1
Authority
DE
Germany
Prior art keywords
sleeve
radially
rotary feedthrough
dosing sleeve
characterized
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.)
Pending
Application number
DE201110076796
Other languages
German (de)
Inventor
Thomas Wiesneth
Rainhart Malik
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to DE201110076796 priority Critical patent/DE102011076796A1/en
Publication of DE102011076796A1 publication Critical patent/DE102011076796A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/04Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/08Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/087Joints with radial fluid passages

Abstract

The invention relates to a rotary feedthrough (10) for liquids between at least one first connection (29, 30, 31) and at least one axially offset second connection (32, 33, 34) through at least one permeable to the liquid hub part (27) and by at least one fluid-permeable shaft part (28) between the ports (29, 30, 31, 32, 33, 34), the shaft part (28) and the hub part (27) being radially fluid-permeable and axially sealed to the fluid Transition between hub part (27) and shaft part (28) relative to each other about a rotation axis (11) are rotatable.

Description

  • Field of the invention
  • The invention relates to a rotary feedthrough for liquids between at least one first connection and at least one axially offset to this second connection by at least one permeable for the liquid hub part and by at least one permeable to the liquid shaft part between the terminals, wherein the shaft part and the hub part on a for the fluids radially permeable and axially sealed transition between the hub part and shaft part relative to each other about an axis of rotation are rotatable.
  • Background of the invention
  • An example of a generic rotary feedthrough is in DE 103 29 191 A1 described. Rotary feedthroughs are used, for example, in vehicle transmissions to direct fluids from a stationary arrangement to a further connection via a rotating arrangement or in the opposite direction from connections on the rotating arrangement to the connections of the standing arrangement. One or two annular channels formed in a so-called hub part have connections for pressure medium, through which pressure medium can be directed into the respective annular channel. The respective annular channel runs circumferentially around a metering sleeve, which in turn has a plurality of through holes which are radially overlapped by the annular channel and which are circumferentially adjacent to each other. The annular channel and the dosing sleeve are fixed to each other.
  • In the DE 103 29 191 A1 described rotary feedthrough further comprises a shaft part with a concentric fixed seated on a shaft distributor sleeve. The shaft part is rotatably mounted about a rolling bearing relative to the hub part about the axis of rotation of the shaft.
  • The transition is the interface between shaft part and hub part, on which the shaft part relative to the hub part and / or the hub part relative to the shaft part is relatively movable. In this case, the transition is a rotational fit carried out with as little radial clearance as possible between the dosing sleeve and the distributor sleeve, on which the dosing sleeve and the distributor sleeve are rotationally movable relative to one another about the axis of rotation. To seal the leakage gap in the radially as possible held tight rotational fit between the distributor sleeve and dosing sleeve grinding seals are arranged in the form of O-rings between the sleeves, which seal the transition against leakage of leakage liquids.
  • The distributor sleeve has a radial through hole per annular channel, which is designed as a control slot. The radian dimension of the control slot is designed so that at relative rotation and standing in each case at the transition at least one through hole of the dosing sleeve is unlocked over the control slot, so that continuous passage of the liquids is secured by at least one of the through holes and the control slot. The control slots lead radially through the wall of the distributor sleeve to axially oriented passages, which are either designed as radially closed on the bottom side grooves in the distributor sleeve or as grooves in the shaft.
  • The arrangement after DE 103 29 191 A1 is made of sheet metal parts. The formed as grooves passages are relatively expensive chipless or machined to introduce either into the shaft or in the distributor sleeve, because the end and radially limited in one direction grooves of the passages form undercuts that complicate axially directed demolding when forming the sheet metal parts. The seals are designed with O-rings for which radial grooves are also to be provided in one of the components and which also form undercuts. The grooves for the passages in waves are usually milled consuming.
  • The radial dimensions of the rotary feedthrough are determined by the height of the annular channel and the sheet thickness of the sleeves. The O-ring seals require little radial space, so that they are very well suited for sealing the leakage gap at the transition. However, the sliding contact of the radially preloaded O-ring seals over the resulting friction torque significantly determines the torque in the rotary feedthrough. In addition, the seals wear relatively quickly due to their radial bias and the sliding contact and lose the sealing effect.
  • Description of the invention
  • The object of the invention is to provide an easy-to-assemble and safe working rotary feedthrough, which requires little radial space, but which can be effectively sealed for a long time with low friction torque and their forming parts are easy to manufacture.
  • The object is solved according to the subject of claim 1.
  • The transition is inventively the transition formed by at least one in a radial annular gap radially from the hub part on the one hand and the shaft part on the other hand limited and circumferentially encircling annular chamber. The annular chamber is sealed axially laterally and has the radial dimensions of the annular gap. In comparison to the prior art, therefore, the annular chamber is not arranged radially on the outside of the rotary feedthrough, but at the interface between the shaft and hub part.
  • The advantage: It is in the transition radially more height for effective seals between the shaft and hub part available without the radial dimensions of the rotary feedthrough compared with the previously known rotary unions had to be increased. In other words - despite the same radial dimensions of the rotary feedthrough is compared to the previously known state of the art more radial height for the formation of suitable low-friction and effective seals available.
  • As seals now radial shaft seals or piston rings are used, which ensure high sealing effects at low friction moments for a long time.
  • From the annular chamber, at least one first through-hole permeable to the liquids leads radially outwards into the hub part and at least one second through-hole, which is permeable to the liquids, projects radially inwards into the shaft part.
  • Liquids are all suitable lubricants or coolants that flow through the rotary union with or without pressure. Ports are inputs and / or outputs of any kind, including holes, grooves, grooves, channels, etc.
  • An embodiment of the invention provides that the first through-hole directed radially outward from the annular chamber is formed in a first metering sleeve and is permeably connected to the first connector for the liquids via at least one first passage. The annular chamber is therefore limited on the outside by a portion of the metering, in which the first through hole is formed. The first passage is formed in this case in a concentric sitting on the first metering sleeve dispensing sleeve. But it is also conceivable that this is formed in the housing.
  • The axially oriented passage (s) and the through holes or the through hole are therefore no longer housed together in a sleeve but in separate sleeves, as compared with the prior art. This can bring manufacturing advantages, especially if the passages are limited in the distributor sleeve radially in both directions by the surrounding construction and deviating from the previously known prior art in one direction by own material. The passages form the individual part distributor sleeve manufacturing technology instead of elaborate undercuts through holes, which can be easily introduced by punching in the wall of the distributor sleeve. The dosing sleeves and the distributor sleeves are drawn hollow cylindrical components made of sheet metal or hollow sheet metal components wound from flat sheet metal.
  • Axially oriented in this case means that the passages extend in the axial direction and can also expand in the circumferential direction and / or deflect in a spiral or winding shape.
  • The passage in the first manifold sleeve is radially inward through a portion of the dosing sleeve on which the manifold sleeve is seated and bounded radially outwardly by a portion of a housing in which the manifold sleeve is seated.
  • A further embodiment of the invention provides that the hub part is a separate assembly formed from the first distributor sleeve and the first dosing sleeve, which can be pre-assembled prior to assembly of the rotary union. For this purpose, the first distributor sleeve is pushed onto the dosing sleeve and then connected to this. Alternatively, the distributor sleeve is pressed onto the dosing sleeve. By a Such arrangement may not require the manufacturer to adapt his practiced in the prior art mounting habits, as still required despite a further component of the hub part according to the invention only a mounting gear for placing the hub part in a housing.
  • Further embodiments of the invention relate to the design of the shaft part. Thereafter, the second through hole is formed in a second dosing sleeve and connected via at least one second passage to the second connection for the liquids permeable. The second passage is analogous to the first passage of the hub part formed in a second distributor sleeve sitting concentrically in the second metering sleeve. Accordingly, the second passage with the advantages already described in the example of the first passage in one direction is not limited by its own material but by components of the surrounding construction. Accordingly, the second passage, with all the advantages already described, does not form an undercut which is relevant for forming technology.
  • According to one embodiment of the invention, the second passage is bounded radially outwardly by a portion of the second dosing sleeve and radially inwardly by a surface portion of a shaft carrying the second distributor sleeve and the second dosing sleeve. The components of the shaft part are advantageously preassembled according to an embodiment of the invention to form a unit, so that the cost of mounting the shaft part at the manufacturer of the transmission despite a part remains low.
  • The ring seals can optionally be pre-assembled on the structural unit of the shaft part and / or on the structural unit of the hub part.
  • A further embodiment of the invention provides that the annular chamber is sealed on both sides by at least one seal which has at least one annular seal prestressed radially against one of the parts. The ring seal is preferably a piston ring which generates low friction moments in the sliding sealing contact and is wear-resistant due to its nature of metal compared to the previous O-rings. The brackets for such piston rings are, for example, metal rings with a U-shaped profile, which are easy to manufacture and uncomplicated on / in the corresponding dosing sleeve or press. Alternatively, the brackets are secured by expansion or by welds, by gluing or by other suitable methods. The piston rings are inserted radially elastically yielding in the brackets.
  • Description of the drawings
  • 1 shows a rotary feedthrough 10 in a half section along the axis of rotation 11 , Through the rotary feedthrough lubricating fluid or other pressure medium from a housing 1 along a wave 8th or along the wave 8th in the case 1 a transmission, not further shown in the directions marked with the direction arrows "↑ ↓" directions with the symbolized by the line "-x-" course and distributed.
  • In the relative to the wave 8th stationary housing 1 sits a first distributor sleeve 2 possibly through a first dosing sleeve 3 in an axial bore 9 of the housing 1 is held or itself by a press fit in the axial bore 9 holding. The wave 8th is relative to the housing 1 around the axially aligned axis of rotation 11 rotatable. On the wave 8th firmly sits a second distributor sleeve 7 taken from a second dosing sleeve 6 is surrounded. On the second dosing sleeve 6 sit axially spaced apart and in this case with piston rings 15 provided ring seals 14 ,
  • The ring seals 14 are with the wave 8th around the axis of rotation 11 rotatable and bridge a radial annular gap 16 between the second dosing sleeve 6 and the first dosing sleeve 3 , To sit the ring seals 14 sealing each in a seal holder 14a and are radially outward against the first dosing sleeve 3 biased abrasive sealing on the first dosing sleeve 3 radially on. The seal holders are, for example, reinforcements of seals with which the seals on the second dosing sleeve 6 are pressed on. Alternatively, the seal holders 14a in the 1 illustrated U-shaped guide rings for piston rings 15 made of metal or rubber or are plastic rings and thus have both holding functions as well as sealing surfaces or sealing edges. The seal holders 14a are either on the second dosing sleeve 6 pressed on and / or as after 1 by radially expanded parts 24 the wall of the dosing sleeve 6 kept axially sealed.
  • The annular gap 16 is through the ring seals 14 in several, for example three, ring channels 16a . 16b and 16c divided, each radially inwardly through portions of the second metering sleeve 6 and radially after outside through sections of the first dosing sleeve 3 are limited. Axial are the ring channels 16a . 16b and 16c through the ring seals 14 and seal holders 14a limited.
  • The axially aligned central axes of the annular disk-shaped ring seals 14 , the inside cylindrical axial bore 9 and the hollow cylindrical sleeves 2 . 3 . 6 and 7 correspond to the axis of rotation 11 the wave 8th ,
  • The housing 1 has several channels 12a until for example 12c as first connections 29 . 30 and 31 on, of which in 1 only one with the reference numeral 12a is visible. The mouths of the other channels 12b and 12c are hidden in the view and therefore shown in dashed lines. Every channel 12a . 12b and 12c each ends in a first passage 13a . 13b or 13c of which in 1 only one with the reference numeral 13a is visible in longitudinal section and the other passages 13b and 13c hidden in this view and therefore not visible. The first passages 13a . 13b and 13c are in the first distributor sleeve 2 educated
  • 2 shows a half-section through that as a unit 21 trained hub part 27 along the axis of rotation 11 , The construction unit 21 is from the first distributor sleeve 2 and the first dosing sleeve 3 educated. During assembly of the unit 21 became the first distributor sleeve 21 axially up to the radial flange 23 on the dosing sleeve 3 pressed or pushed. The pods 2 and 3 are held together either by a press fit or by, for example, one or more crimping or welding together.
  • In the illustration after 2 are the first passages 13b and 13c hidden and therefore shown in dashed lines. The passage 13a is shown in longitudinal section. Every passage 13a . 13b and 13c is in each case one of the circumferentially adjacent channels 12a . 12b or 12c assigned, of which in 1 and 2 for the channels 12b and 12c the muzzle indicated by dashed lines and in 1 the channel 12a are shown in longitudinal section.
  • Each of the passages 13a . 13b and 13c each leads from one of the channels 12a . 12b or 12c to at least one radial first through hole 17a . 17b respectively. 17c in the first dosing sleeve 3 , From the through holes 17a . 17b and 17c is in 1 only the first through hole 17a visible in longitudinal section, but are in 2 the first through hole 17c complete and the first through hole 17b partially shown. It is also conceivable that each of the passages 13a . 13b and or 13c at least two of the first through holes 17a . 17b or 17c in the first dosing sleeve 3 assigned. The through holes 17a . 17b and 17c each lead from one of the passages 13a . 13b or 13c radially through the first dosing sleeve 3 through into one of the ring channels 16a . 16b or 16c ,
  • Each of the ring channels 16a . 16b and 16c is in each case at least one radial second through hole 18a . 18b or 18c in the second dosing sleeve 6 assigned. Each of the second through holes 18a . 18b or 18c each leads to a second passage 19a . 19b or 19c in the distributor sleeve 7 , Alternatively, two or more of the second through holes may collectively lead into one of the second passages. The second passages 19a . 19b or 19b are axially aligned in this case, but can also extend in the circumferential direction deflecting. From the second through holes 18a . 18b or 18c and from the second passages 19a . 19b or 19c is in 1 only one / one shown.
  • 3 shows a half section through that as a second assembly 22 trained shaft part 28 along the axis of rotation 11 , The second unit 22 is from the second dosing sleeve 6 , the second distributor sleeve 7 and the ring seals 14 with seal holders 14a and piston rings 15 educated. The seal holders 14a are for example by rolling on the second dosing sleeve 6 applied, the wall of the dosing sleeve 6 at the sections 6a is radially expanded. Subsequently, the pre-assembled assembly of seal holder 14a and second dosing sleeve 6 on the second distributor sleeve 7 to the collar 25 the second distributor sleeve 7 pushed axially or pressed.
  • In 3 is the second passage 19a in longitudinal section, the second passage 19b completely and the second passage 19c partially shown.
  • Each of the passages 19a . 19b and 19c is at least a third through hole 20a . 20b or 20c in the second dosing sleeve 6 assigned. The radial third through holes 20a . 20b and 20c are in the second dosing sleeve 6 at an axial distance on a line or in the circumferential direction offset to the second through holes 18a . 18b or 18c trained and lead by the respective passage 19a . 19b or 19c through the second dosing sleeve 6 through as second connections 32 . 33 and 34 to not shown lubrication points on gears, bearings or other transmission elements. It is also conceivable that the second dosing sleeve 6 has more than one of the third through holes per passage.
  • 4 shows a cross section through the rotary feedthrough 10 and thus across the case 1 and through the channel 12a in the case 1 , continue across the passage 13a in the first distributor sleeve 2 at the axial height of the through hole 17a in the first dosing sleeve 3 across the through hole 17a , further across the circumferential annular channel 16a between the first dosing sleeve 3 and the second dosing sleeve 6 axially at the level of the through holes 18a in the second dosing sleeve 7 and across the through hole 18a and finally across the passages 19a in the second distributor sleeve 7 and as a full cut through the shaft 8th , The ring seal 14 sits in this representation to the image plane reset in the annular gap 16 between the first dosing sleeve 3 and the second dosing sleeve 6 ,
  • The double arrow symbolizes possible rotational or pivoting directions of the shaft 8th around its axis of rotation 11 , which in this case is directed vertically into the image plane. Separation point between the rotating second unit 22 opposite the housing-fixed unit 21 is the circular inner body edge 26 the housing-fixed first distributor sleeve 3 at the ring seal 14 rotating along grinds. reference numeral 1 casing 18a second through hole 2 first distributor sleeve 18b second through hole 3 first dosing sleeve 18c second through hole 4 piston rings 19a second passage 5 Piston ring guide 19b second passage 6 second dosing sleeve 19b second passage 6a wall section 20a third through hole 7 second distributor sleeve 20b third through hole 8th wave 20c third through hole 9 axial bore 21 first building unit 10 Rotary union 22 second unit 11 axis of rotation 23 flange 12a channel 24 expanded games 12b channel 25 collar 12c channel 26 body edge 13a first passage 27 hub part 13b first passage 28 shaft part 13c first passage 29 first connection 14 ring seal 30 first connection 14a seal holder 31 first connection 15 piston ring 32 second connection 16 annular gap 33 second connection 16a annular channel 34 second connection 16b annular channel 16c annular channel 17a first through hole 17b first through hole 17c first through hole
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • DE 10329191 A1 [0002, 0003, 0006]

Claims (10)

  1. Rotary feedthrough ( 10 ) for liquids between at least one first connection ( 29 . 30 . 31 ) and at least one axially offset to this second connection ( 32 . 33 . 34 ) by at least one permeable to the liquid hub part ( 27 ) and by at least one permeable to the liquid shaft part ( 28 ) between the terminals ( 29 . 30 . 31 . 32 . 33 . 34 ), wherein the shaft part ( 28 ) and the hub part ( 27 ) at a radially permeable and axially sealed transition between the hub part ( 27 ) and shaft part ( 28 ) relative to each other about a rotation axis ( 11 ) are rotatable, characterized in that the transition through at least one in a radial annular gap ( 16 ) radially from the hub part ( 27 ) on the one hand and from the shaft part ( 28 ) On the other hand, limited and axially laterally sealed and peripherally encircling annular chamber ( 16a . 16b . 16c ) is formed, which radially the dimensions of the annular gap ( 16 ) and from which at least one first through-hole ( 17a . 17b . 17c ) in the hub part ( 27 ) and at least one liquid-permeable second through-hole (US Pat. 18a . 18b . 18c ) in the shaft part ( 28 ) leads.
  2. Rotary feedthrough according to claim 1, characterized in that the first through hole ( 17a . 17b . 17c ) in a first dosing sleeve ( 3 ) and at least a first passage ( 13a . 13b . 13c ) with the first connection ( 29 . 30 . 31 ) is permeable to the liquids, the first passage ( 13a . 13b . 13c ) in a concentric manner on the first dosing sleeve ( 3 ) seated distribution sleeve ( 2 ) sits.
  3. Rotary feedthrough according to claim 2, characterized in that the annular chamber ( 16a . 16b . 16c ) radially outwardly through a portion of the first dosing sleeve ( 3 ) is limited.
  4. Rotary feedthrough according to claim 2, characterized in that the first passage ( 13a . 13b . 13c ) radially inwardly through a portion of the first dosing sleeve ( 3 ) and radially outwardly through a portion of a housing ( 1 ), in which the first distributor sleeve ( 2 ) sits.
  5. Rotary feedthrough according to claim 2, characterized in that the hub part ( 27 ) one of the first distributor sleeve ( 2 ) and the first dosing sleeve ( 3 ) formed separate first assembly ( 21 ), wherein the first distributor sleeve ( 2 ) firmly on the first dosing sleeve ( 3 ) sits.
  6. Rotary feedthrough according to claim 1, characterized in that the second through hole ( 18a . 18b . 18c ) in a second dosing sleeve ( 6 ) and at least a second passage ( 19a . 19b . 19c ) with the second connection ( 32 . 33 . 34 ) is permeable to the liquids, the second passage ( 19a . 19b . 19c ) in a concentric manner in the second dosing sleeve ( 6 ) seated second distributor sleeve ( 7 ) is trained.
  7. Rotary feedthrough according to claim 6, characterized in that the annular chamber ( 16a . 16b . 16c ) radially inwardly through a portion of the second dosing sleeve ( 6 ) is limited.
  8. Rotary feedthrough according to claim 6, characterized in that the second passage ( 19a . 19b . 19c ) radially outwardly through a portion of the second dosing sleeve ( 6 ) and radially inwardly by a surface portion of a second distributor sleeve ( 7 ) and the second dosing sleeve ( 6 ) carrying wave ( 8th ) is limited.
  9. Rotary feedthrough according to claim 6, characterized in that the shaft part ( 28 ) one at least from the second dosing sleeve ( 6 ) and the second distributor sleeve ( 7 ) formed second assembly ( 22 ), the second dosing sleeve ( 6 ) concentrically on the second distributor sleeve ( 7 ) sits.
  10. Rotary feedthrough according to claim 1, characterized in that the annular chamber ( 16a . 16b . 16c ) on both sides by at least one ring seal ( 14 ), wherein the ring seal ( 14 ) at least one radially biased against one of the parts ring ( 15 ), which radially elastically movable axially in one on one of the parts ( 27 . 28 ) seated seal holder ( 14a ) is held.
DE201110076796 2011-05-31 2011-05-31 Rotary feedthrough with sealing sleeve Pending DE102011076796A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201110076796 DE102011076796A1 (en) 2011-05-31 2011-05-31 Rotary feedthrough with sealing sleeve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110076796 DE102011076796A1 (en) 2011-05-31 2011-05-31 Rotary feedthrough with sealing sleeve
PCT/EP2012/054869 WO2012163556A1 (en) 2011-05-31 2012-03-20 Rotary union with sealing sleeve

Publications (1)

Publication Number Publication Date
DE102011076796A1 true DE102011076796A1 (en) 2012-12-06

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Family Applications (1)

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DE201110076796 Pending DE102011076796A1 (en) 2011-05-31 2011-05-31 Rotary feedthrough with sealing sleeve

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DE (1) DE102011076796A1 (en)
WO (1) WO2012163556A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013011904U1 (en) 2013-09-25 2014-10-07 Schaeffler Technologies Gmbh & Co. Kg Device for conducting liquids
WO2015043595A1 (en) * 2013-09-25 2015-04-02 Schaeffler Technologies AG & Co. KG Device for conducting oil in a vehicle gearbox with at least two elements which can move with respect to one another and with a sleeve
WO2015043594A1 (en) 2013-09-25 2015-04-02 Schaeffler Technologies AG & Co. KG Device for transferring liquids
DE102016222456A1 (en) 2016-11-16 2018-05-17 Schaeffler Technologies AG & Co. KG Fluid guide bushing, in particular for a motor vehicle transmission or a coupling device
DE102016222457A1 (en) 2016-11-16 2018-05-17 Schaeffler Technologies AG & Co. KG Coupling device with a fluid guide bushing
DE102017128447A1 (en) 2017-11-30 2019-06-06 Schaeffler Technologies AG & Co. KG Fluid channel socket, in particular for a motor vehicle transmission or a coupling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329191A1 (en) 2003-06-28 2005-01-13 Ina-Schaeffler Kg Rotary union

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO177780C (en) * 1993-07-06 1995-11-22 Statoil As Swivel for fluid transfer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329191A1 (en) 2003-06-28 2005-01-13 Ina-Schaeffler Kg Rotary union

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013011904U1 (en) 2013-09-25 2014-10-07 Schaeffler Technologies Gmbh & Co. Kg Device for conducting liquids
WO2015043595A1 (en) * 2013-09-25 2015-04-02 Schaeffler Technologies AG & Co. KG Device for conducting oil in a vehicle gearbox with at least two elements which can move with respect to one another and with a sleeve
WO2015043594A1 (en) 2013-09-25 2015-04-02 Schaeffler Technologies AG & Co. KG Device for transferring liquids
CN105579755A (en) * 2013-09-25 2016-05-11 舍弗勒技术股份两合公司 Device for transferring liquids
CN105579755B (en) * 2013-09-25 2017-09-08 舍弗勒技术股份两合公司 Equipment for transmitting liquid
US9784392B2 (en) 2013-09-25 2017-10-10 Schaeffler Technologies AG & Co. KG Device for transferring fluids
US10054251B2 (en) 2013-09-25 2018-08-21 Schaeffler Technologies AG & Co. KG Device for conducting oil in a vehicle gearbox with at least two elements which can move with respect to one another and with a sleeve
DE102016222456A1 (en) 2016-11-16 2018-05-17 Schaeffler Technologies AG & Co. KG Fluid guide bushing, in particular for a motor vehicle transmission or a coupling device
DE102016222457A1 (en) 2016-11-16 2018-05-17 Schaeffler Technologies AG & Co. KG Coupling device with a fluid guide bushing
DE102016222457B4 (en) 2016-11-16 2018-07-12 Schaeffler Technologies AG & Co. KG Coupling device with a fluid guide bushing
DE102016222456B4 (en) 2016-11-16 2018-12-20 Schaeffler Technologies AG & Co. KG Fluid guide bushing, in particular for a motor vehicle transmission or a coupling device
DE102017128447A1 (en) 2017-11-30 2019-06-06 Schaeffler Technologies AG & Co. KG Fluid channel socket, in particular for a motor vehicle transmission or a coupling device

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