Internal-combustion engines having a cylinder and working piston reciprocating therein, but irrespective of other structural features, cycle, or mode of operation, the said working piston being provided with a passage leading into the working cylinder and controlled by a valve depending upon the engine for its operation, said valve being concerned either with the supply of the successive combustible charges to the working cylinder or with the exhaust of the burned gases therefrom.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
222+, for cyclically operable, expansible chamber motors having a valved piston.
