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Title:
4-WAY TORQUE CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/045158
Kind Code:
A1
Abstract:
The present invention provides a 4-way torque converter which reduces working pressure of a lockup clutch, thereby enabling more efficient control of lockup operation. The 4-way torque converter according to the present invention comprises a primary chamber for internal oil circulation, a secondary chamber surrounded by a front cover and a lockup piston for the purpose of the operation of a lockup clutch, and a tertiary chamber surrounded by the lockup piston and a balance plate so as to compensate for working pressure of the lockup clutch and pressure of the oil circulation inside the torque converter, and comprises: the lockup piston a distal end of an outer diametral part of which is connected to a multi-plate friction plate of the lockup clutch, and which divides the secondary chamber and the tertiary chamber based on the inner and outer circumferential surfaces thereof and has an annular circumferential end flange formed thereon; the balance plate which is in contact with the inside of an end of the circumferential end flange of the lockup piston and forms an interface of the tertiary chamber disposed between the primary chamber and the secondary chamber; and a pilot which is coupled to a turbine spline hub of an input shaft for transferring the torque of an engine to a transmission, and to an outer surface of which the front cover and an inner diametral end of the balance plate are fixed and an inner diametral end of the lockup piston is sliadably coupled.

Inventors:
LEE, Jungho (49-1, Suseong-ro 64-gil,Suseong-gu, Daegu, 42132, KR)
LEE, Jin-Soo (35-17, Sinambuk-ro 7-gil,Dong-gu, Daegu, 41195, KR)
HONG, Soon-Seok (103-1201, 842-7 Dalgubeol-daero, Dasa-eup,,Dalseong-gun, Daegu, 42910, KR)
SHIN, Soon-Cheol (710-1803, 1526 Bongyeong-ro, Yeongtong-gu,,Suwon-si, Gyeonggi-do, 16701, KR)
Application Number:
KR2017/009773
Publication Date:
March 07, 2019
Filing Date:
September 06, 2017
Export Citation:
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Assignee:
VALEO KAPEC CO., LTD. (113 Hosandong-ro, Dalseo-gu, Daegu, 42709, KR)
International Classes:
F16H45/02
Foreign References:
JP2008008358A2008-01-17
US20140262666A12014-09-18
JPH09317848A1997-12-12
KR20140037098A2014-03-26
US5669475A1997-09-23
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (115 Teheran-ro, Gangnam-gu, Seoul, 06134, KR)
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