Pump or motor with interconnected chambers in the rotor

Details Pump or motor with interconnected chambers in the rotor Pump or motor with interconnected chambers in the rotor

2006-08-15

2006-08-15

Freay, Charles G. (Department: 3746)

Pumps

Three or more cylinders arranged in parallel, radial, or...

Condition responsive fluid control

C417S285000, C091S472000, C091S476000

Reexamination Certificate

active

07090472

ABSTRACT:
Pump or motor having a rotor with chambers with a through rotation variable volume which are connectable via switches to either a first line connection or a second line connection. During switching between the line connections, the volume of the chamber changes and to avoid pressure peaks or cavitation the chambers are interconnected with connecting lines. Each connecting line has closures to stop the flow through the connecting line after a limited volume of fluid has passed in one direction.

REFERENCES:
patent: 3156192 (1964-11-01), Austin et al.
patent: 3202105 (1965-08-01), Badenoch et al.
patent: 4096786 (1978-06-01), Schauer
patent: 5878649 (1999-03-01), Raab
patent: 5918529 (1999-07-01), Forster
patent: 6024541 (2000-02-01), Perstnev et al.
patent: 1260078 (1961-08-01), None
patent: 2082604 (1971-12-01), None
patent: 1009607 (2000-01-01), None
International Search Report for International Application No. PCT/NL01/00839 mailed Mar. 14, 2002.

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