192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Patent
1980-11-25
1983-08-23
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
1921062, F16D 366
Patent
active
043998950
ABSTRACT:
A rotary power transmission device includes a torque converter, which transmits rotary power between coaxial power input and power output shafts, and a lock up clutch between the power input and power output shafts, which includes first and second plate elements which can be biased towards or away from one another. The first clutch plate element is connected to the power input shaft. In a generally annular space defined between the outer part of the generally toroidal torque converter and the outer part of the second clutch plate element there is disposed a rotary damper which rotationally couples together the second clutch plate element and the power output shaft and provides a certain amount of rotary damping therebetween. The rotary damper includes two outer damper plate elements sandwiched on either side of one inner damper plate element, the outer damper plate elements being connected together, and the combination of them being rotationally connected to the second clutch plate element, while the inner damper plate element is rotationally connected to the power output shaft. Two of the damper plate elements are flat annuli lying in said annular space, and one is subtantially a flat disk whose central portion is connected to the power output shaft. The inner damper plate element is pierced with several circumferentially extending slots in which are received compression coil springs, and opposing these slots there are formed in the outer damper plate elements corresponding circumferentially extending slot shaped apertures into which the sides of these springs project. Around the entire peripheries of the slot shaped apertures in the outer damper plate elements there extend raised lips, which project from the planes of the outer damper plate elements in the direction away from the inner damper plate element. These lips reinforce the outer damper plate elements, and optionally may taper outwards so as snugly to receive the sides of the compression coil springs.
REFERENCES:
patent: 3497043 (1970-02-01), Leonard
patent: 4269296 (1981-05-01), Flotow et al.
patent: 4274519 (1981-06-01), Moroto et al.
Kubo Seitok
Kuramochi Koujiro
Kyushima Tatsuo
Krizmanich George H.
Toyota Jidosha Kogyo Kabushiki Kaisha
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