Bi-Directional Pump Mechanism for Balanced Flow Fluid Exchanger

a pump mechanism and fluid exchange technology, applied in the direction of machines/engines, liquid fuel engines, rotary/oscillating piston pump components, etc., to achieve the effect of improving the exchange capacity

Inactive Publication Date: 2008-05-29
VIKEN JAMES P
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]In one embodiment of the present invention, a fluid exchange system includes a dual chambered vane pump having extendable vanes and two ports per chambe

Problems solved by technology

One unresolved problem has been the inherent need for an inexpensive fluid exchange system which is simple and automatic to operate and which supports desirable features of some known, more complex and expensive exchange units, such as the automatic fluid flow alignment mechanism as disclosed in U.S. Pat. No. 5,472,064 to Viken and U.S. Pat. No. 6,779,633 to Viken, each patent being incorporated by reference herein.
A related but unresolved problem has been the inherent need for a fluid exchange system wh

Method used

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  • Bi-Directional Pump Mechanism for Balanced Flow Fluid Exchanger
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  • Bi-Directional Pump Mechanism for Balanced Flow Fluid Exchanger

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Embodiment Construction

[0025]FIG. 1 is a schematic view of a fluid pump assembly 1 utilized in preferred embodiment of the present invention. Fluid pump assembly 1 provides a dual chambered vane pump with two ports per chamber. A vane holder 5 with a plurality of vanes 7 is received inside an elliptical bore 8 of a pump block 3. Pump block 3 in this instance may be molded and comprised of an acrylic type plastic compound, but can also be molded or constructed of many other materials such as various other types of plastics or hard rubber compounds, or various types of metals such as aluminum, brass or steel, or other metals, depending on the pressures, temperatures or chemical composition of the fluids being exchanged and the desired longevity of the fluid exchanger. Fluid pump assembly 1 is shown with side cover 35 removed. FIG. 2 shows side cover 35 which engages a side surface of pump block 3 upon assembly.

[0026]Vane 7 is a blade, and in this instance is constructed of an acrylic type plastic compound, ...

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Abstract

A fluid pump assembly having a rotatable vane received with a pump housing with the vane holder rotatably carrying a plurality of vanes with each vane being biased into contact with a perimeter wall of the pump housing. A fluid exchange device utilizes the fluid pump assembly to exchange fluids in a system, such as a hydraulic system or cardiopulmonary system. The fluid exchange device may include a boost pump, a flow alignment device and a bypass valve.

Description

RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. 119(e) from provisional U.S. Patent Application No. 60 / 857,281, filed Nov. 7, 2006, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates to pump assemblies and more particularly to a fluid pump assembly utilized in a fluid exchange device in communication with a hydraulic or other fluid system.DESCRIPTION OF THE PRIOR ART[0003]The market for fluid exchanging equipment for vehicular hydraulic fluid systems, such as power steering and automatic transmissions has undergone relatively rapid recent expansion. Many such devices have been developed for such use. One unresolved problem has been the inherent need for an inexpensive fluid exchange system which is simple and automatic to operate and which supports desirable features of some known, more complex and expensive exchange units, such as the automatic fluid flow alignment mechanism as disclos...

Claims

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Application Information

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IPC IPC(8): F04C2/00
CPCF01C21/0809F04C2/3446F04C14/08F05C2225/02F04C2240/52F04C2240/60F04C2230/20
Inventor VIKEN, JAMES P.
Owner VIKEN JAMES P
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