Control valve for timed clutch engagement

Details Control valve for timed clutch engagement Control valve for timed clutch engagement

1991-11-12

1992-07-14

Bonck, Rodney H.

192 clutches and power-stop control

Elements

Thrust members, retarders, and stops

91459, 1376256, F16D 4328, F16D 2512

Patent

active

051295008

ABSTRACT:
A control valve assembly has a multi-land spool valve slidably disposed in a stepped valve bore. One end of the spool valve has disposed adjacent thereto a control chamber in which a control signal pressure is selectively applied while the other end has a timing chamber disposed adjacent thereto which has the signal pressure selectively applied therein when the clutch is subjected to apply pressure. The timing chamber permits rapid clutch fill and controlled pressure rise of the clutch apply fluid during clutch engagement.

REFERENCES:
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patent: 3583422 (1971-06-01), Dach et al.
patent: 3991865 (1976-11-01), Kohatsu
patent: 4245671 (1981-01-01), Kosugui
patent: 4265346 (1981-05-01), Emmadi
patent: 4301715 (1981-11-01), Acar
patent: 4469011 (1984-09-01), Loffler
patent: 4567971 (1986-02-01), Hille et al.
patent: 4617968 (1986-10-01), Hendrixon
patent: 4676349 (1987-06-01), Coutant
patent: 4741364 (1988-05-01), Stoss et al.
patent: 4838313 (1989-06-01), Kobayashi et al.
patent: 4899785 (1990-02-01), Inokuchi

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