Regenerative fluid pump and stator for the same

Details Regenerative fluid pump and stator for the same Regenerative fluid pump and stator for the same

2007-02-13

2007-02-13

Edgar, Richard A. (Department: 3745)

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

C415S055700

Reexamination Certificate

active

10516832

ABSTRACT:
A regenerative fluid pump (10) comprises a rotor having rotor blades for compressing fluid on two fluid flow paths, the first of which extends between a first pump inlet (12a) and a first pump outlet (14a), and a second of which extends between second pump inlet (12b) and a second pump outlet (14b). The pump comprises a stator comprising a plurality of concentric channels (16), each of which comprises: a pumping channel portion (18) along which said rotor blades move for compressing said fluid between an inlet and an outlet of the pumping channel; and a stripper channel portion (20) (shown in broken lines) which allows movement of said rotor blades from said outlet to said inlet of the pumping channel portion. Each concentric channel (16) comprises two pumping channel portions (18) and two stripper channel portions (20).

REFERENCES:
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patent: 4678395 (1987-07-01), Schweinfurter
patent: 5498125 (1996-03-01), Hablanian
patent: 5848873 (1998-12-01), Schofield
patent: 6162012 (2000-12-01), Tuckey et al.
patent: 0 770 781 (1997-05-01), None
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Patent Abstracts of Japan, vol. 1995, No. 08, Sep. 29, 1995 & JP 07 127595 A (Nippon Soken Inc), May 16, 1995, abstract; figure 9.
United Kingdom Search Report of Application No. GB 0215709.7 Date of search: Jan. 31, 2003.
International Search Report of International Application No. PCT/GB03/02907; Date of mailing of the International Search Report: Oct. 13, 2003.

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