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    • 3. 发明专利
    • COUPLING
    • JP2000213564A
    • 2000-08-02
    • JP36794799
    • 1999-12-24
    • GKN VISCODRIVE GMBH
    • GASMANN THEODOR DIPL ING
    • F16D35/00F16D43/284
    • PROBLEM TO BE SOLVED: To provide a 'Viscolock (R)' type coupling having the advantages of a 'Viscolock (R)' and which does not make any exceptions of any limitations delaying reaction speed. SOLUTION: In a coupling having a plurality of friction plates 16 and 17, a housing filled with a viscous fluid and formed by one side 14 of a rotatable member, and a pressure chamber 30 formed by a movable piston 21, and wherein the pressure chamber 30 is supplied by a hydraulic pump unit and the piston 21 presses against a friction coupling 12, a runner provided in a shape of a rotor pump with inside toothing, eccentrically supporting a hollow gear 24 with inside toothing, and dragged by a rotor 23 with outside toothing is composed on the hydraulic pump unit, the rotor 23 with outside toothing and the hollow gear 24 form a rotary pump chamber 27, a pressure groove 40 connects the rotary pump chamber 27 with the pressure chamber 30, and a return line 41 connects the pressure chamber 30 with a reservoir 29.
    • 4. 发明专利
    • VISCOUS RIGID COUPLING WITH DOUBLE SHEAR CHANNEL
    • JP2000035059A
    • 2000-02-02
    • JP18924199
    • 1999-07-02
    • GKN VISCODRIVE GMBH
    • BOETTGER FRANKGASMANN THEODOR
    • F16D31/02F16D7/00F16D35/00F16D43/284F16H48/26
    • PROBLEM TO BE SOLVED: To improve responsiveness by forming two circumferential direction extending grooves demarcating two shear channels covered by each one of two radial direction surfaces of a carrier plate on a shear channel cam control member and providing a through path connecting the two shear channels with each other on the carrier plate. SOLUTION: A coupling assembly 11 is constituted of a friction coupling 12 as a multiple plate coupling and a speed sensitive control assembly 13. The friction coupling 12 is constituted of a housing 14 holding and fixing each outer plate 15 and a hub 16 disposing and fixing each inner plate 17 and can be energized by a pressure plate 18. To control this pressure plate 18, a control assembly 13 provided with a piston 19 and a pump main body member 20 is provided. Within this pressure chamber 21, a carrier plate 22 and a shear channel cam control member 23 surrounding this plate 22 are disposed. The cam control member 23 is constituted by being provided with two sheets of dished members 55, 56 forming shear channels 37, 38. On the carrier plate 22, a through path connecting the shear channels 37, 38 is formed.
    • 5. 发明专利
    • VISCOUS COUPLING
    • JPH11108083A
    • 1999-04-20
    • JP22606998
    • 1998-08-10
    • GKN VISCODRIVE GMBH
    • HOFER MANFREDMORAWETZ RUDOLF
    • B60K17/35F16D35/00
    • PROBLEM TO BE SOLVED: To provide a viscous coupling which guarantees that a viscous medium is distributed evenly in the area where the plates are superposed when the plate group is rotated relatively regardless of the rotation of the rotating direction, and operates against the separation of the viscous medium generated by the centrifugal force at a high viscous coupling speed and air. SOLUTION: Plates have openings 81 and 91, and the distances between their border surfaces 82, 83, 92, and 93, and an virtual radius R are liable to increase as plates go to the inner side. As a result, the border surfaces 82, 83, 92, and 93 press the viscous medium to the inner side against the centrifugal force generated by the rotation, regardless of the rotating direction, the separation of the viscous medium and air is suppressed, and thereby, the plates are wet evenly, and the abrasion amount rendered by the contact of the plates is reduced, consequently.
    • 6. 发明专利
    • DIFFERENTIAL GEAR DEVICE
    • JPH10252863A
    • 1998-09-22
    • JP5091898
    • 1998-03-03
    • GKN VISCODRIVE GMBH
    • KWOKA GEORG
    • F16H48/20F16H48/22F16H48/26
    • PROBLEM TO BE SOLVED: To provide a differential gear device provided with a controllable cutoff device and an operating device, which is easily assembled and which allows use of a driving shaft plug similarly formed inside of a gear housing and which dependently works on the number of differential revolution. SOLUTION: This device is provided with a controllable cutoff device to be operated by an operating device, which dependently works on the number of differential revolution. In this case, the device includes a rotatable differential housing 11 having two driving bevel gears 17, 18, which can be connected to a driving shaft, which can be inserted, and which are arranged on the same shaft, and to be fitted to a gear device housing, and adjusting plural bevel gears 19, 20 engaged with both driving shaft gears and arranged on the plug 21 in the radial direction inside of the housing freely to be rotated. At this stage, an axis R of the plug of the adjusting bevel gear is laid in the center surface of the differential housing, and a cutoff use disc coupling unit 31 is arranged in the differential housing coaxially with the center surface at a first side, and an operating pump unit 41 is arranged inside of the differential housing coaxially with the center surface at a second side.
    • 8. 发明专利
    • VISCOUS COUPLING
    • JPH1054430A
    • 1998-02-24
    • JP13379197
    • 1997-05-23
    • GKN VISCODRIVE GMBH
    • GASMANN THEODOR DIPL ING
    • E06B9/80A62C2/24E06B9/82F16D35/00F16D63/00
    • PROBLEM TO BE SOLVED: To provide a viscous coupling capable of being used for a brake in which the driving and damping torque curve are gradually increased. SOLUTION: A viscous coupling suitable for a brake for a roller shutter-type fire door is provided with a housing 3 and a hub 6 having a series of inner plates 13 in a chamber for housing viscous fluid and a series of outer plates 11 positioned between them. First plates in which plates of one group are rotated at high speed in relation to the housing of the coupling or the hub, and plates of the other group are rotated at high speed in relation to the hub or the housing part is provided, and at least two continuous plates are driven and connected by protrusions so constituted as to be brought in contact with each other after the free rotation. When the degree of freedom of the rotation between the continuous plates of respective groups is generated, torque to be transmitted between the housing of the coupling and the hub is gradually increased. In a case where the viscous coupling is used for a fire door, the braking action is increased as the door is lowered.
    • 10. 发明专利
    • AXLE DRIVING DEVICE FOR DISTRIBUTING TORQUE
    • JPH08219177A
    • 1996-08-27
    • JP32192295
    • 1995-12-11
    • VISCODRIVE GMBH
    • TEODOORU GAASEMAN
    • F16D25/065B60K17/35F16D43/284F16D48/02F16H48/12F16H48/18F16H48/22
    • PROBLEM TO BE SOLVED: To obtain the optimum operation to an operation limit by disposing two pistons in a pump housing, rotatably disposing pumping and control members in a pump housing, and providing a conveying member constituting a shear channel with the pumping and control members. SOLUTION: A pump housing is non-rotatably provided in a clutch housing, two pistons 4 are filled with a highly viscous fluid, and a pressure chamber 10 connected to a tank 8 is limited on one side. A rotatable pump limited between the terminal end positions to the pump housing, a control member 5, and a conveying member 6 non-rotatably connected to one of the axle shafts 2 are disposed in the pressure chamber 10, whereby the rotational faces of the conveying member 6 form a sealed shear channel 20 with the opposite surface of the pumping and controlling member. At both terminal end positions of the control member 5, a forward control opening of a groove 19 in the rotating direction is communicated with the tank 8, and a control opening of the rear end is communicated with the pressure chamber 10, so that in the shear channel 20 there occurs a shear action from the pump 8 to the pressure chamber. Thus, various operation limit characteristics are permitted to enable automatic operation in the optimum state.