US PATENT SUBCLASS 418 / 93
.~.~ Non-working fluid biases vane

Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

83  DF  HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING {13}
91  DF  .~ Non-working fluid passage in inner working or reacting member {3}
93.~.~ Non-working fluid biases vane

DEFINITION

Classification: 418/93

(under subclass 91) Apparatus in which the device includes a vane which is moved into cylinder wall engagement either by (1) pressurized nonworking fluid directed to the vane slot or (2) pressurized working fluid combined with a nonworking fluid directed to the vane slot.