US PATENT SUBCLASS 418 / 92
.~.~ With non-working fluid passage in partition

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}
92.~.~ With non-working fluid passage in partition

DEFINITION

Classification: 418/92

(under subclass 91) Apparatus comprising a working member with a vane wherein the nonworking fluid flow path includes a passageway or duct means through the vane.