US PATENT SUBCLASS 418 / 74
.~ Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes

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

71  DF  PRESSURE FLUID RADIALLY BALANCES WORKING OR ROTATING ABUTMENT MEMBER {3}
74.~ Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes

DEFINITION

Classification: 418/74

(under subclass 71) Apparatus in which at least one of the opposing fluid zones comprises a part of the working chamber and the counterbalancing fluid directed thereto pressurizes the space between adjacent vane or tooth surfaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

180, for similar devices wherein pressurized fluid at the high pressure working chamber zone is directed to a lower pressure working chamber zone.