Vane pump

Details Vane pump Vane pump

2006-09-11

2010-12-07

Denion, Thomas E (Department: 3748)

Rotary expansible chamber devices

Positively actuated vane

Fluid biased

C418S079000, C418S081000, C418S082000

Reexamination Certificate

active

07845922

ABSTRACT:
The invention relates to a vane pump comprising a rotor which is arranged therein, rotatably driven by a drive shaft. The rotor is provided with several grooves which are distributed through the circumference thereof and which extend substantially radially with respect to the axis of rotation of the rotor. In each groove a blade-shaped conveying element is slidingly guided. The end walls of the pump housing are adjacent to the rotor in the direction of the axis of rotation thereof. At least one ring-shaped groove surrounding the axis of rotation of the rotor is embodied in at least one front side of the rotor. The ring-shaped groove is connected to lower areas restricted by the blades in the grooves of the rotor, and to pressure areas. In a preferred embodiment, the ring-shaped groove is formed in the rotor by shaping.

REFERENCES:
patent: 2004958 (1935-06-01), Bryce
patent: 2423271 (1947-07-01), Talbot
patent: 2544987 (1951-03-01), Gardiner et al.
patent: 2653550 (1953-09-01), Gardiner et al.
patent: 3574493 (1971-04-01), Hamilton
patent: 4455129 (1984-06-01), Sakitani et al.
patent: 5147183 (1992-09-01), Gettel
patent: 5188522 (1993-02-01), Hara
patent: 5265457 (1993-11-01), Hayashi et al.
patent: 2009/0291010 (2009-11-01), Koehler et al.
patent: 101080572 (2007-11-01), None
patent: 19529806 (1997-02-01), None
patent: 199 52 167 (2000-06-01), None
patent: 102004060554 (2006-06-01), None
patent: 186271 (1922-09-01), None
patent: 63167089 (1988-07-01), None
patent: 63280883 (1988-11-01), None
patent: 1-155096 (1989-06-01), None
patent: 2008524485 (2008-07-01), None
patent: 2006063913 (2006-06-01), None

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