US PATENT SUBCLASS 123 / 214
.~ With plural expansion volume means


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

200  DF  ROTARY {12}
214.~ With plural expansion volume means {1}
215  DF  .~.~> In series


DEFINITION

Classification: 123/214

With plural expansion volume means:

(under subclass 200) Apparatus provided with a plurality of space means capable of enlargement to receive the combusted material from the combustion space such that the reception of the combusted material causes the space means to enlarge.

(1) Note. The volume designed for receiving the combusted material inherent in the operating cycle of most rotary piston engines is included as an expansion volume means for this subclass.