Steam driven pump
AssigneeArmstrong International, Inc.
InventorTimothy K. Totten
Life of this patent
Estimating the term…
Abstract
A pump has a housing including at least one fluid channel; a motive fluid inlet port; a suction fluid inlet port; and a discharge port. The pump also includes a venturi disposed in the fluid channel of the housing. The venturi is connected by way of the fluid channel to the motive fluid inlet port, the suction fluid inlet port, and the discharge port. A ball check valve is operatively disposed between the motive fluid inlet port and the venturi for controlling the flow of motive fluid. The pump further includes an actuator assembly for actuating the ball check valve. In the preferred embodiment, the ball check valve has only an opened position and a closed position.
Claims19
A pump comprising:
- a housing having at least one fluid channel;
- a motive fluid inlet port;
- a suction fluid inlet port;
- a discharge port;
- a venturi disposed in the at least one fluid channel of said housing, and connected by way of the at least one fluid channel to said motive fluid inlet port, said suction fluid inlet port, and said discharge port;
- a ball check valve operatively disposed between said motive fluid inlet port and said venturi for controlling the flow of motive fluid, wherein said ball check valve has only two operable positions including an opened position and a closed position;
- and
- an actuator assembly for actuating said ball check valve.
A pump comprising:
- a housing having at least one fluid channel therein;
- a motive fluid inlet port;
- a suction fluid inlet port;
- a discharge port;
- a venturi disposed in the at least one fluid channel of said housing, and connected by way of the at least one fluid channel to said motive fluid inlet port, said suction fluid inlet port, and said discharge port;
- a valve operatively disposed between said motive fluid inlet port and said venturi for controlling the flow of motive fluid, said valve being operable in only two positions including an opened position and a closed position;
- a suction fluid detector for detecting a level of suction fluid;
- and
- an actuator assembly for actuating said valve, said actuator assembly being directly connected to said valve by means of a mechanical linkage, and connected to said suction fluid detector for actuation in response to a detected level of suction fluid.
A pump comprising:
- a housing having at least one fluid channel therein;
- a motive fluid inlet port;
- a suction fluid inlet port;
- a discharge port;
- a container for containing suction fluid;
- a venturi disposed in the at least one fluid channel of said housing, and connected by way of the at least one fluid channel to said motive fluid inlet port, said suction fluid inlet port, and said discharge port;
- a valve operatively disposed between said motive fluid inlet port and said venturi for controlling the flow of motive fluid, said valve being operable in only two positions including an opened position and a closed position;
- a suction fluid detector for detecting a level of suction fluid in said container;
- and
- an actuator assembly for actuating said valve, said actuator assembly being directly connected to said valve by means of a mechanical linkage, and connected to said suction fluid detector for actuation in response to a detected level of suction fluid.
Dependencies are inferred from the claim text.