.~ Working member controlled inlet or exhaust port (e.g., semi-valveless)
DEFINITION
Classification: 91/325
(under subclass 218) Apparatus in which inlet or exhaust of motive fluid is controlled by the motor working member uncovering a motive fluid inlet or exhaust port which is not further controlled by a cyclically operated valve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
184, for a motor having relatively movable working members with one movable interconnected with another to cause relative motion in which a working member covers a port to control motive fluid.
232+, for a motor in which both the inlet and exhaust are controlled solely by the piston overrunning or uncovering inlet and exhaust ports.
302, for a cyclically operable motor having working member controlled motive fluid supply for a distributor motor in which the working member traverses a pilot passage in the working chamber side wall, the pilot port being relieved into a chamber having a working member controlled exhaust port.
