Translational displacement pump and bulk fluid re-supply system

a technology of translatation displacement and bulk fluid, which is applied in the direction of positive displacement liquid engines, piston pumps, liquid fuel engines, etc., can solve the problems of high pressure, and achieve the effects of reducing pressure, enhancing seal effectiveness, and high degree of elasticity
US20080118376A1Inactive Publication Date: 2008-05-22VERRILLI BRIAN LEONARD
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
VERRILLI BRIAN LEONARD
Publication Date
2008-05-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A novel method of designing a pump by utilizing a cylinder with pistons inserted from each end. The cylinder contains two ports along the top for connection of a prime fluid chamber, a bulk fluid supply chamber and a fluid reservoir. These ports and corresponding connection details are arranged in a fashion that is perpendicular to the axis of the cylinder that comprises the pump chamber. Directly below at a different relative position also perpendicular to the axis of the pump chamber is an exit port for extrusion of fluid. The pump contains no valves or ancillary passages to direct flow between the different machine states of prime, refill, translate and dispense. The states are activated by relative position of the pistons with respect to each port. Fluid moves by translation within the pump by filling the chamber volume between the two pistons with a liquid and synchronizing the advance of the left piston with the retreat of the right piston. Both pistons can be directed toward one another or one piston can remain stationary while the other advances toward it to dispense a liquid. Exceptionally accurate volumes of fluid can be deposited because of the absence of compliant members in the wetted path.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application is entitled to the benefit of Provisional Patent Application Ser. No. 60 / 860,172 filed Nov. 20, 2006.FEDERALLY FUNDED RESEARCH

[0002] Not ApplicableSEQUENCE LISTING OR PROGRAM

[0003] Not ApplicableBACKGROUND OF INVENTION

[0004] 1. Field of the Invention

[0005] This invention pertains to the field of liquid dispensing equipment. More particularly, it pertains to design of a pump that employs a novel method of pumping or extruding a fluid. The pump design is capable of accomplishing this task without the use of valves or redirection of fluid through ancillary pathways. Both pistons occupy a circular cavity or tube; each piston is inserted from opposite ends, a reservoir and a prime chamber are installed on the topside of the tube. The exit port is directly below and provides for connection of a nozzle or other passage for extrusion of the fluid.

[0006] 2. Description of the Prior Art

[0007] At present there are four general types of pu...

Claims

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