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Title:
HYDRAULIC POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/031259
Kind Code:
A1
Abstract:
The purpose of the present invention is to achieve high damping performance stably over the entire normal rotational speed range with a simple structure in a hydraulic power transmission device including a dynamic damper. This device comprises a front cover (2), a torque converter body (8), a lockup device (6), and a dynamic damper (7). The dynamic damper (7) is fixed to an output plate (20) of the lockup device (6). The dynamic damper (7) includes: a base plate (28); an inertial body including an inertia ring (29, 30) and a lid member (31, 32); and an elastic unit. The base plate (28) is fixed to the output plate (20). The inertial body is rotatable relative to the base plate (28). The elastic unit is capable of generating a hysteresis torque that is variable in accordance with the relative rotation angle difference between the base plate (28) and the inertial body, and elastically couples the base plate (28) and the inertial body in the rotating direction.

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Inventors:
KAWAHARA YUKI (JP)
OKAMOTO YUSUKE (JP)
OKAMACHI YUSUKE (JP)
Application Number:
PCT/JP2015/051926
Publication Date:
March 03, 2016
Filing Date:
January 23, 2015
Export Citation:
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Assignee:
EXEDY CORP (JP)
International Classes:
F16H45/02
Foreign References:
US20110287844A12011-11-24
JP2011058557A2011-03-24
JPH0534339U1993-05-07
JPH0953700A1997-02-25
JPH0637649U1994-05-20
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
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