192 clutches and power-stop control – Clutches – Operators
Patent
1997-04-17
1998-11-24
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Operators
192 846, 192 91R, 477 74, B60K 4128, F16D 2900
Patent
active
058395610
ABSTRACT:
An automatic clutch system includes an operating cylinder which is interconnected through a release lever with a friction element engaging mechanism. The operating cylinder is communicated with a master cylinder and an auxiliary cylinder through a hydraulic passage. A worm wheel driven by a motor has first and second connecting points which are oppositely disposed with respect to a rotation axis of the worm wheel. The first connecting point is interconnected with a piston rod of the master cylinder and has a first distance from the rotation axis. The second connecting point is interconnecting with a piston rod of the auxiliary cylinder and has a second distance from the rotation axis. The second distance is set smaller than the first distance so that the volume change of the auxiliary cylinder side is smaller than that of the mater cylinder side. Therefore, this cylinder arrangement functions stable to cancel a reaction force of a pressure spring of the friction element engaging mechanism to the worm wheel.
REFERENCES:
patent: 4650056 (1987-03-01), Sevennec et al.
patent: 4852419 (1989-08-01), Kittel et al.
patent: 5043895 (1991-08-01), Hattori et al.
patent: 5094079 (1992-03-01), Leigh-Monstevens et al.
patent: 5273143 (1993-12-01), Voss et al.
patent: 5678673 (1997-10-01), Borschert et al.
Koda Masanori
Watanabe Yoshiyuki
Bonck Rodney H.
Unisia Jecs Corporation
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