(under the class definition) Apparatus comprising selectively adjustable means to change the volume of the expansive chamber remaining after the working member has reached the limit of its movement in a chamber decreasing direction, said means not involving a mere stroke of the working member.
(1) Note. The adjustment usually involves a selective movement of a chamber wall or the opening or closing of a valve between the expansible chamber and a blind chamber, i.e., clearance chamber.
(2) Note. This definition excludes an expansible chamber pump or motor having a valved clearance chamber in which the valve is controlled in response to a pump or motor condition. Such pump or motor is classified in the appropriate pump or motor class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13+, for means to adjust the stroke of a working member or the end limits of the stroke of a working member relative to the chamber.
60, for a flexible or resiliently biased nonworking member wall in constant communication with the working chamber.
SEE OR SEARCH CLASS 123, Internal-Combustion Engines,
48, for internal combustion engines having clearance control means which is responsive to an engine condition.
417, Pumps,
274+, for pumps having clearance control means which is responsive to a pump condition.
