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1. 发明专利

FR2776040B1 未知
公开(公告)号：FR2776040B1
公开(公告)日：2001-05-18
申请号：FR9902759
申请日：1999-03-05
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D25/0638 , F16D25/065 , F16D25/12 , F16D35/00 , F16D43/284 , F16D43/28 , F16D13/75
摘要： A coupling device for transmitting torque between a first part and a second part which are rotatable relative to one another is disclosed. The coupling device comprises a multi-plate coupling unit with axially alternating arranged first plates and second plates. The first plates are each connected in a rotationally fixed manner to one of the first part or the second part and the second plates are each connected in a rotationally fixed manner to the other of the first part or the second part. The coupling device further comprises an actuating assembly for axially loading the multi-plate coupling unit by means of a setting piston. The multi-plate coupling unit also comprises a first annular chamber filled with a highly viscous fluid and delimited by the setting piston, and a rotational member arranged in the annular chamber. The first annular chamber is formed in one of the first or second parts with the rotational member being connected in a rotationally fixed manner to the other of the first or second part. A relative rotation between the first and second parts causes pressure-loading and displacement of the setting piston towards the multi-plate coupling unit as a result of the shear of the highly viscous fluid in the first annular chamber. A pressure plate is positioned between the setting piston and the multi-plate coupling. The faces of the pressure plate and the setting piston together form a radially outwardly tapering gap in which there are arranged radially freely movable wedge elements in a play-free manner.

2. 发明专利

FR2788091B1 未知
公开(公告)号：FR2788091B1
公开(公告)日：2001-03-23
申请号：FR9916370
申请日：1999-12-23
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D35/00 , F16D43/284 , F16D31/04 , F16D25/0638 , B60K17/34
摘要： A coupling for transmitting torque between two parts which are rotatable relative to one another, which coupling comprises a friction coupling whose friction plates are each non-rotatably connected to the one and to the other of the parts which are rotatable relative to one another, having a pressure chamber which is filled with a highly viscous fluid and which is formed by a housing formed in one of the rotatable parts and by a displaceable piston sealed relative to said housing, and having a pump unit in which there rotates a conveying member connected to the other one of the rotatable parts, wherein a reservoir for a highly viscous fluid is provided in the housing, which reservoir is connected to the pump unit, wherein the pressure chamber is supplied by the pump unit and the piston loads the friction coupling and wherein the pump unit is provided in the form of an internally toothed rotor pump and the conveying member forms an externally toothed rotor which is concentrically connected to the other one of the parts which are rotatable relative to one another, and wherein an internally hollow gear constitutes a runner which is eccentrically supported and is dragged along by the externally toothed rotor, with the rotor together with the hollow gear, forming a rotating pump chamber.

3. 发明专利

FR2780758B1 未知
公开(公告)号：FR2780758B1
公开(公告)日：2001-04-13
申请号：FR9908142
申请日：1999-06-25
申请人： GKN VISCODRIVE GMBH
发明人： BOTTGER FRANK , GASSMANN THEODOR
IPC分类号： F16D31/02 , F16D7/00 , F16D35/00 , F16D43/284 , F16H48/26 , F16D43/28
摘要： A coupling assembly comprising a friction coupling a pressure-generating device comprising a pump body member, an axially-displaceable piston loading the friction coupling, and a pressure chamber formed by the pump body and by the piston and filled with a highly-viscous fluid, and with at least one conveying plate being provided in the pressure chamber; and a shear channel with a control member in the pressure chamber, the control member cooperating with at least one conveying plate. In a first embodiment, the shear channel with a control member forms two circumferential grooves of limited length and each covered by one of the two radial surfaces of the conveying plate, thereby forming two shear channels. Passages through the conveying plate connect the two shear channels. In a second embodiment, the shear channel with a control member forms a circumferential groove of limited length which is covered by one of the two radial surfaces of the conveying plate to form a first shear channel. In the shear channel with a control member, there is a circumferential slot of limited length which is covered by the other one of the two radial surfaces of the conveying plate and by a second conveying plate, the latter being designed to form a second shear channel. The first conveying plate includes fluid passages extending therethrough and connecting both shear channels to one another.

4. 发明专利

GB2313431A A viscous coupling which acts as a brake for a roller shutter 未知
公开(公告)号：GB2313431A
公开(公告)日：1997-11-26
申请号：GB9709997
申请日：1997-05-19
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： E06B9/80 , A62C2/24 , E06B9/82 , F16D35/00 , F16D63/00 , E05F3/14 , F16D57/00 , F16F9/12
摘要： A viscous coupling comprises a housing 3 having an inner chamber 18 in which a hub 6, a set of inner plates 13 and a set of outer plates 11 are arranged. The outer plates 11 are connected, via toothing 4, to the housing 3 while only the inner plate nearest the hub is drivingly engaged by lugs 16 to the hub 6. Inner plates 13 are provided with lugs 16 which project from one face and circumferentially offset lugs 17 which project from an opposite face. This circumferential offset allows each inner plate 13 to move through an angle 19 so that they engage each other sequentially as the hub 6 moves relative to the housing 3, thereby increasing stepwise the torque transmitted between the housing 3 and hub 6. When used as a brake for roller shutter fire door the coupling applies a varying torque which allows for the weight increase as the door unrolls. In another embodiment the inner plates 13 may be fixed to the hub and the outer plates 11 may be provided with the lugs 16, 17.

5. 发明专利

FR2744187A1 未知
公开(公告)号：FR2744187A1
公开(公告)日：1997-08-01
申请号：FR9700660
申请日：1997-01-23
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D47/06 , F16D35/02 , F16D43/284 , F16H48/22
摘要： A device for transmitting torque between two parts rotatably mounted relative to one another. The device comprises a friction coupling 12 having friction elements rotationally fixed to each of the parts. The friction elements are rotatably relative to one another. The friction coupling 12 is loadable by at least two movable pistons 191, 192, which delimit a pressure chamber 21 on one side. The pressure chamber 21 is filled with a viscous fluid, and is connected to a reservoir 26. The pressure chamber 21 is formed by a rotational housing 20 and the pistons 191, 192. The rotational housing 20 is connected with one of the rotatable parts. A rotational member 22 rotates inside the chamber 21 and is connected to the other rotatable part. A control member 23 is positioned in a pressure chamber 21 and faces of the rotational member and counter faces of the control member and constitute at least one shear channel 38 which communicates with the reservoir 26 and the pressure chamber 21. The pressure chamber 21 is delimited by said at least two separate, axially movable annular pistons, 191, 192. Based on different characteristic functions, the pistons 191, 192 convert pressure in the pressure chamber 21 to an axial force acting on the friction coupling 12 .

6. 发明专利

FR2788091A1 未知
公开(公告)号：FR2788091A1
公开(公告)日：2000-07-07
申请号：FR9916370
申请日：1999-12-23
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D35/00 , F16D43/284 , F16D31/04 , F16D25/0638 , B60K17/34
摘要： A coupling for transmitting torque between two parts which are rotatable relative to one another, which coupling comprises a friction coupling whose friction plates are each non-rotatably connected to the one and to the other of the parts which are rotatable relative to one another, having a pressure chamber which is filled with a highly viscous fluid and which is formed by a housing formed in one of the rotatable parts and by a displaceable piston sealed relative to said housing, and having a pump unit in which there rotates a conveying member connected to the other one of the rotatable parts, wherein a reservoir for a highly viscous fluid is provided in the housing, which reservoir is connected to the pump unit, wherein the pressure chamber is supplied by the pump unit and the piston loads the friction coupling and wherein the pump unit is provided in the form of an internally toothed rotor pump and the conveying member forms an externally toothed rotor which is concentrically connected to the other one of the parts which are rotatable relative to one another, and wherein an internally hollow gear constitutes a runner which is eccentrically supported and is dragged along by the externally toothed rotor, with the rotor together with the hollow gear, forming a rotating pump chamber.

7. 发明专利

FR2782767A1 未知
公开(公告)号：FR2782767A1
公开(公告)日：2000-03-03
申请号：FR9910772
申请日：1999-08-25
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16H20060101 , F16H48/12 , F16H48/14 , F16H48/28

8. 发明专利

IT1314096B1 未知
公开(公告)号：IT1314096B1
公开(公告)日：2002-12-04
申请号：ITMI992496
申请日：1999-11-30
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D35/00 , F16D43/284
摘要： A coupling for transmitting torque between two parts which are rotatable relative to one another, which coupling comprises a friction coupling whose friction plates are each non-rotatably connected to the one and to the other of the parts which are rotatable relative to one another, having a pressure chamber which is filled with a highly viscous fluid and which is formed by a housing formed in one of the rotatable parts and by a displaceable piston sealed relative to said housing, and having a pump unit in which there rotates a conveying member connected to the other one of the rotatable parts, wherein a reservoir for a highly viscous fluid is provided in the housing, which reservoir is connected to the pump unit, wherein the pressure chamber is supplied by the pump unit and the piston loads the friction coupling and wherein the pump unit is provided in the form of an internally toothed rotor pump and the conveying member forms an externally toothed rotor which is concentrically connected to the other one of the parts which are rotatable relative to one another, and wherein an internally hollow gear constitutes a runner which is eccentrically supported and is dragged along by the externally toothed rotor, with the rotor together with the hollow gear, forming a rotating pump chamber.

9. 发明专利

FR2744187B1 未知
公开(公告)号：FR2744187B1
公开(公告)日：2000-11-10
申请号：FR9700660
申请日：1997-01-23
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR
IPC分类号： F16D47/06 , F16D35/02 , F16D43/284 , F16H48/22
摘要： A device for transmitting torque between two parts rotatably mounted relative to one another. The device comprises a friction coupling 12 having friction elements rotationally fixed to each of the parts. The friction elements are rotatably relative to one another. The friction coupling 12 is loadable by at least two movable pistons 191, 192, which delimit a pressure chamber 21 on one side. The pressure chamber 21 is filled with a viscous fluid, and is connected to a reservoir 26. The pressure chamber 21 is formed by a rotational housing 20 and the pistons 191, 192. The rotational housing 20 is connected with one of the rotatable parts. A rotational member 22 rotates inside the chamber 21 and is connected to the other rotatable part. A control member 23 is positioned in a pressure chamber 21 and faces of the rotational member and counter faces of the control member and constitute at least one shear channel 38 which communicates with the reservoir 26 and the pressure chamber 21. The pressure chamber 21 is delimited by said at least two separate, axially movable annular pistons, 191, 192. Based on different characteristic functions, the pistons 191, 192 convert pressure in the pressure chamber 21 to an axial force acting on the friction coupling 12 .

10. 发明专利

FR2783029A1 Method of controlling power distribution in motor vehicle drive axle involves pumps operated independently to synchronize axle shaft sections 未知
公开(公告)号：FR2783029A1
公开(公告)日：2000-03-10
申请号：FR9910852
申请日：1999-08-27
申请人： GKN VISCODRIVE GMBH
发明人： GASSMANN THEODOR , SCHONENBRUCHER PAUL ERICH
IPC分类号： F16D35/00 , B60K17/35 , F16D25/10 , F16D43/284 , F16H48/18 , F16H48/26 , F16H48/22
摘要： The method of controlling power distribution in a motor vehicle drive axle which has two shafts (13,14) with a clutch cage (12) uses pumps (33,34) operating independently so that, during a relively opposite rotation of the shafts with respect to the cage, they are synchronized. Claims include an axle drive assembly using the method

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