Pneumatically-operated fluid pump with amplified fluid pressure, and related methods

Abstract

A fluid pump for pumping a subject fluid. The fluid pump including, a pump body, a first cavity within the pump body, a second cavity within the pump body, a flexible member, an incompressible fluid, a subject fluid chamber, and a piston. Piston may include a piston head and an elongated piston shaft. The piston may be configured to amplify a first pressure experienced on a first side of the piston head and exerted by a pressurized drive fluid to a second pressure experienced on an end surface of the elongated piston shaft and exerted on the incompressible fluid within the flexible member. The subject fluid may in turn be pressurized to a third pressure substantially equal to the second pressure.

Description

TECHNICAL FIELD[0001]Embodiments of the present disclosure relate generally to positive displacement devices. More particularly, embodiments of the present disclosure relate to pneumatically-operated fluid pumps and related methods.BACKGROUND[0002]Reciprocating fluid pumps are used in many industries. Reciprocating fluid pumps generally include two at least one fluid chamber in a pump body. A reciprocating piston or shaft is driven back and forth within the pump body. One or more flexible members may be connected to the reciprocating piston or shaft. As the reciprocating piston moves in one direction, the movement of the flexible members results in subject fluid being drawn into a subject fluid chamber. As the reciprocating piston moves in the opposite direction, the movement of the flexible members results in fluid being expelled from the subject fluid chamber. A subject fluid inlet and a subject fluid outlet may be provided in fluid communication with the subject fluid chamber. Ch...

AI Technical Summary

Benefits of technology

The present disclosure is about a fluid pump that includes a flexible member and a piston shaft hole for pumping a subject fluid. The flexible member increases and decreases the volume of the subject fluid chamber and is made of an at least partially incompressible fluid. The piston shaft hole connects to the second cavity and includes an elongated piston shaft that exerts pressure on the incompressible fluid. The invention allows for the pumping of subject fluids with high pressure and has potential applications in various fields such as medical devices and fluid control systems.

Problems solved by technology

As the reciprocating piston moves in the opposite direction, the movement of the flexible members results in fluid being expelled from the subject fluid chamber.

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