US PATENT SUBCLASS 123 / 232
.~.~.~ Interengaging rotors

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

200  DF  ROTARY {12}
221  DF  .~ With transfer means intermediate single compression volume means and single expansion volume means {5}
228  DF  .~.~ Compression volume means circumferentially disposed relative to expansion volume means {4}
232.~.~.~ Interengaging rotors {1}
233  DF  .~.~.~.~> Nonparallel axes

DEFINITION

Classification: 123/232

Interengaging rotors:

(under subclass 228) Apparatus wherein the means to pressurize the combustible material and the means to receive the combusted material are separated by a seal produced by the engagement of a rotatable element structure with the periphery of the piston structure.

SEE OR SEARCH CLASS

418, Rotary Expansible Chamber Devices,

191+, for gear-type rotary chamber devices.