192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Patent
1990-02-07
1991-09-24
Herrmann, Allan D.
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
192 76, 74867, 475 65, F16D 3300, B60K 4128
Patent
active
050507150
ABSTRACT:
A hydraulic control apparatus for a vehicle power transmitting system having a fluid coupling equipped with a lock-up clutch, and a transmission to which power is transmitted from an engine of the vehicle through the fluid coupling. The fluid coupling has an engaging chamber and a releasing chamber for engaging and releasing the lock-up clutch. The apparatus includes a discharge passage communicating with the engaging chamber, for normally draining the engaging chamber to a drain, to thereby normally release the lock-up clutch, and a rapid release valve connected to the discharge passage. The rapid release valve operates to by-pass the discharge passage to the drain therethrough, for thereby rapidly draining the engaging chamber to rapidly release the lock-up clutch. A lock-up pressure regulating valve is provided for regulating a lock-up clutch pressure applied to the fluid coupling, normally to a first value, and upon operation of the rapid release valve, to a second value higher than the first value.
REFERENCES:
patent: 4095486 (1978-06-01), Ohnuma
patent: 4152947 (1979-05-01), van Deursen et al.
patent: 4349088 (1982-09-01), Ito et al.
patent: 4403975 (1983-09-01), Rattunde
patent: 4665770 (1987-05-01), Van Selous
patent: 4772249 (1988-09-01), Kouno et al.
patent: 4778435 (1988-10-01), Sugaya et al.
patent: 4857034 (1989-08-01), Kouno et al.
patent: 4867732 (1989-09-01), Soga et al.
Habuchi Ryoji
Itoh Hiroshi
Morisawa Kunio
Soga Yoshinobu
Sugaya Masami
Herrmann Allan D.
Pitts Andrea
Toyota Jidosha & Kabushiki Kaisha
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