Motors: expansible chamber type – Working member position feedback to motive fluid control – Electrical input and feedback signal means
Patent
1990-01-22
1992-02-18
Look, Edward K.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Electrical input and feedback signal means
91 3, 91461, 91521, 91529, 137 83, 13759615, 13762511, 137884, F15B 907, F15B 909
Patent
active
050883836
ABSTRACT:
A multiplexed hydraulic control system which avoids the use of a rotary multiplexer and thereby allows for random selection of the multiplexed outlet ports and variable dwell times for the respective ports. A single hydraulic input is multiplexed among a plurality of hydraulic outputs. A control system provides two types of signals: (1) modulation signals selected from a plurality of multiplexed input signals for producing a modulating hydraulic flow, and (2) selector signals for operating on the multiplexer means to route the modulated signal to the appropriately selected channel.
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Clay David G.
Leeson Plato J.
Sievert Dale W.
Wardle John W.
Kapsalas George
Look Edward K.
Woodward Governor Company
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