(under subclass 218) Apparatus which includes means by which the volume of the working chamber, when the working member has reached the end of its stroke in the direction which contracts said chamber may be varied without altering the length of stroke of the working member.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
60.5, for expansible chamber devices having selective
clearance control.
123, Internal-Combustion Engines,
48, for internal combustion engines having clearance control means. 417, Pumps,
274+, for pumps having condition responsive clearance control.
