(under subclass 39.01) Plants including a prime mover comprising a motor of the expansible chamber type, the motor being in communication with an external-combustion products generator by means of a periodically opened transfer valve or equivalent means, to admit products of combustion into the working space on the power stroke of the motor piston. In an intermittently fired combustion products generator, ignition must be initiated prior to the opening of the transfer valve or equivalent means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
632+, for one shot explosion actuated expansible chamber type motors.
SEE OR SEARCH CLASS
123, Internal-Combustion Engines, appropriate subclasses, for prime movers of the expansible chamber type having a combustion chamber separated from the working space by a periodically opened transfer valve or equivalent means, the transfer valve or equivalent means being open at the instant of ignition. Note
