Control system for independent control of fluid actuated devices

Details Control system for independent control of fluid actuated devices Control system for independent control of fluid actuated devices

1986-12-12

1988-03-08

Michalsky, Gerald A.

Fluid handling

Systems

Valves with separate, correlated, actuators

74866, 74787, 91513, 13759614, 13759616, F15B 1306

Patent

active

047294086

ABSTRACT:
Control systems are required to selectively control fluid actuated devices, such as clutches, in a transmission. In order to reduce shock loads on the internal elements of the transmission, it is necessary to ensure that only one clutch can be engaged at one time and that no major speed changes or change in direction is allowed. The present invention provides an interlocking arrangement that operates to control a source of pressurized fluid to a plurality of valve mechanism and a plurality of signal control devices. The operation of one of the plurality of valve mechanisms interrupts the flow of fluid to other ones of the plurality of valve mechanisms and to ones of the signal control devices. With this subject arrangement, the shock loads to the transmission are substantially reduced.

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