Title:
LOCK-UP DEVICE AND TORQUE CONVERTER
Document Type and Number:
WIPO Patent Application WO/2015/079901
Kind Code:
A1
Abstract:
[Problem] To provide a lock-up device and a torque converter that are capable of reducing torque converter hiss caused by friction between a damper spring and a clutch piston, and of improving engine torque fluctuation damping properties. [Solution] A torque converter (100) comprising a lock-up device (200) that couples: a torque converter cover (101) that rotates integrally with a pump impeller (102); and a turbine runner (103) connected to an output shaft (104). The lock-up device (200) comprises: a damper spring (203) inside a clutch piston (201) in contact with or separated from the torque converter cover (101); and an intermediate member (210) inside said damper spring (203). The center of the damper spring (203) juts out towards the inside in the radial direction in the clutch piston (201), as a result of a coupling member (220) and damper pressing sections (205, 213) provided in both end sections of the damper spring (203), and is pressed against a jutting out section (213) in an intermediate member (220).
Inventors:
FUJIWARA HIROMI (JP)
ASAI HIROSHI (JP)
SAIGA SEIJI (JP)
ENYA SHOGO (JP)
SHIMIZU KATSUHIRO (JP)
ASAI HIROSHI (JP)
SAIGA SEIJI (JP)
ENYA SHOGO (JP)
SHIMIZU KATSUHIRO (JP)
Application Number:
PCT/JP2014/079813
Publication Date:
June 04, 2015
Filing Date:
November 11, 2014
Export Citation:
Assignee:
FCC KK (JP)
International Classes:
F16H45/02; F16F15/134
Foreign References:
| JP2002048217A | 2002-02-15 | |||
| JP2005282651A | 2005-10-13 | |||
| JP2009002358A | 2009-01-08 | |||
| JP2006037977A | 2006-02-09 | |||
| JP2013096558A | 2013-05-20 |
Attorney, Agent or Firm:
ITO HIROYUKI (JP)
居藤 Hiroyuki (JP)
居藤 Hiroyuki (JP)
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