A power transmission device including two or more pistons is disclosed The power transmission device includes: a housing arranged to form a mounting space by connecting a clutch housing, a clutch connecting portion, a clutch hub and a disk housing to each other; a power transmission hub selectively and operably connected to the housing; first friction disks splined to an interior circumference of the disk housing; second friction disks splined to an exterior circumference of the power transmission hub and disposed alternately with the first friction disks; a piston module including two or more pistons respectively having a corresponding piston chamber, and selectively and frictionally coupling the first friction disks with the second friction disks; and at least one return spring or at least one separating spring supplying a spring load counteracting against an axial force, wherein friction material is attached to any surface of first or second friction disks.
Power transmission device provided with more than two pistons
2020-02-18
Patent
Electronic Resource
English
POWER TRANSMISSION DEVICE PROVIDED WITH MORE THAN TWO PISTONS
European Patent Office | 2017
POWER TRANSMISSION DEVICE PROVIDED WITH MORE THAN TWO PISTONS
European Patent Office | 2017
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