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Class 60/621 - Movable wall portions are rigidly interconnected


Subclass of Class 60 - Power plants
Definition: Apparatus, in which the mechanically interconnected working
No. of patents: 1
Last issue date: 11/15/1988


NumberTitleIssue Date
4783966Multi-staged internal combustion engine
The positive displacement internal combustion engine has multiple stages of compression and expansion. After an initial compression, the working fluid is contained at elevated pressure and temperature. Valve controls on the initial compression can limit t... 		11/15/1988
 
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