Rotary vane pump

Details Rotary vane pump Rotary vane pump

2005-01-04

2005-01-04

Freay, Charles G. (Department: 3746)

Pumps

One fluid pumped by contact or entrainment with another

Diverse pumps

C417S151000

Reexamination Certificate

active

06837689

ABSTRACT:
A rotary vane pump for delivering a fluid and which has a housing which accommodates a rotatable delivery device (1) and which includes a feed channel (13) for receiving the fluid from a tank or the like. The feed channel communicates with a jet chamber (15) which in turn communicates via one or more suction channels (20) to at least two suction chambers which communicate with the intake region of the pump. An injector device (14) injects a pressurized fluid into the jet chamber to entrain and advance the fluid entering from the feed channel (13), and means are provided for influencing the flow of the fluid so as to achieve essentially the same volume flow into the two suction chambers.

REFERENCES:
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patent: 6413064 (2002-07-01), Parsch et al.
patent: 41 22 433 (1993-01-01), None
patent: 41 38 516 (1993-05-01), None
patent: 196 37 224 (1998-03-01), None
patent: 198 36 628 (2000-02-01), None

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