Liquid delivery device, method of controlling such liquid delive

Details Liquid delivery device, method of controlling such liquid delive Liquid delivery device, method of controlling such liquid delive

1998-01-28

2000-07-25

Yuen, Henry C.

Pumps

Processes

4182013, F04B 2310, F01C 116

Patent

active

060929944

ABSTRACT:
A screw pump includes a casing having inlet and outlet ports and a pump rotor rotatably mounted in the casing and having screw threads communicating with said inlet and outlet ports. The pump rotor is rotated by a reversible speed-controllable motor, typically a DC brushless motor, mounted in the casing to deliver a liquid such as a chemical solution from the inlet port through a liquid passage defined by the screw threads to the outlet port.

REFERENCES:
patent: 3846045 (1974-11-01), Mincuzzi
patent: 4591322 (1986-05-01), Ono et al.
patent: 5046666 (1991-09-01), Ono
patent: 5527159 (1996-06-01), Bozeman, Jr. et al.
patent: 5614777 (1997-03-01), Bitterly et al.
patent: 5674063 (1997-10-01), Ozaki et al.
Tsuyoshi Asanuma, "Study on the Sealing Action by Viscous Fluid", Institute of Electrostatics Japan, 1951, pp. 119-125.
Tadashi Koga, "Recent topics of Non-contact seal", Yoken-do, Japan, Jul., 1999.
Eimei Akamatsu, "Present status of Magnetic levitated centrifugal blood circulating pump", Institute of Electrostatics, Japan, 1955.
Abstract of Japanese Publication No. 61-266248.
"Fluid Film Supports and Pumps" Eureka--vol. 11, No. 11, Nov. 1, 1991.
Radnor "Instruments & Control System"--vol. 56, No. 1, Jan. 1983, pp. 41-43 .

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