(under subclass 6) Apparatus in which motive fluid is supplied to the working chamber through one path and in response to a flow or pressure condition in said flow path a second inlet flow path to said working chamber is opened.
(1) Note. The working chamber is considered to be part of the flow path. Thus, sensing of pressure in the working chamber to activate the second inlet flow path is included under this definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18, for cyclically operable expansible chamber motors in which low pressure fluid is supplied to the working chamber when the high pressure fluid is cut off and the motor is coasting or drifting (e.g., locomotive), the low pressure fluid being controlled in response to the pressure in the high pressure line.
33, for expansible chamber motors having diverse motive fluid supply paths to a single expansible chamber in which the
pressure or flow of motive fluid in one path is effective to cut off or deactivate a second supply path.
436, for expansible chamber motors in which inlet motive fluid to an expanding chamber is supplemented by fluid pressurized in an opposed contacting chamber.
