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Spherical fluid machine with control mechanism
| Details |
Inventors: Turner, William Frank;
Assignee: Spherical Machines, Inc. (Abilene, TX)
Primary Examiner: Vrablik; John J.
Assistant Examiner:
Attorney, Agent or Firm: Carr & Storm, L.L.P.
A rotary fluid machine, such as a pump or motor, is provided with a fluid flow control mechanism that allows the flow of fluid to be easily and precisely controlled. The device has a housing with a spherical interior in which primary and secondary vanes rotate, with the secondary vane reciprocating between open and closed positions. The primary and secondary vanes define fluid chambers within the housing that communicate with inlet and outlet ports of the device. An adjustable fixed shaft, about which the secondary vane rotates, allows the degree of communication to be varied between the inlet and outlet ports and the chambers formed by the primary and secondary vanes. In this way, the flow rate or fluid capacity of the device, and even the direction of fluid flow, can be changed. |
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DETAILED DESCRIPTION Referring to FIG.
1 of the drawings, the reference numeral 10 generally designates a fluid pump or compressor embodying features of the present invention.
The pump 10 is generally similar in construction to the device described in U.
S.
Pat.
No.
5,199,864, which is herein incorporated by reference.
It should be noted that although the device 10 has been more specifically described with respect to its function and use as a fluid pump or compressor, it could also function as motor, as would be readily appreciated by those skilled in the art.
The pump 10 includes a metal housing 12, such as steel or aluminum, which is formed into two halves 14, 16.
Although the housing 12 and other components of the pump 10 are generally described and shown herein as being constructed of metal, many other materials, such as plastic or polymeric materials, could be used as well, depending upon the application of the device 10 and would be appreciated by those skilled in the art.
Accordingly, the invention should not be limited to the particular types of materials that are used in its construction.
Each half 14, 16 of the housing 12 is generally configured the same as the other and has a hemispherical interior cavity 18 (FIG.
2), which forms a spherical interior of the housing 12 when the two halves 14, 16 are joined together.
Each housing half or piece 14, 16 is provided with a circular flange 20 having a flat facing surface 21 which extends around the perimeter of the cavity 18 and which abuts against and engages the corresponding flange 20 of the other housing piece 14, 16.
The flange face 21 lies in a plane that generally divides the spherical housing interior 18 into two equal hemispherical halves when the housing halves 14, 16 are joined together.
A fluid tight seal is formed between the housing halves 14, 16 when the halves 14, 16 are joined together.
A gasket or seal (not shown) may be interposed between the flange faces 21 to accomplish this.
The flange 20 may be provided with holes 22 to accommodate bolts or fasteners (not shown) for joining the housing halves 14, 16 together
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Heart Surgery 
