Method and apparatus for shutting off a compressor when it rotat

Details Method and apparatus for shutting off a compressor when it rotat Method and apparatus for shutting off a compressor when it rotat

1989-11-06

1990-11-13

Smith, Leonard E.

Pumps

Condition responsive control of pump drive motor

Single motor control element responsive to means sensing...

417 28, 417 32, 417 33, 417 44, 417 53, F04B 4902

Patent

active

049698010

ABSTRACT:
A fluid compression system includes a fluid compression device which pressurizes fluid. A pressure sensor senses pressure generated by the compression device. A control device indicates operating parameters and functions of the compression device, graphically displays the parameters and functions, sets limits of the parameters and controls the compression device in response to any of the parameters reaching a preset level of a corresponding function. A reverse rotation sensor determines when the compression device is operating in an incorrect direction by the initial pressure sensed by the pressure sensor after startup of the compression device, and in response, shuts off the compression device.

REFERENCES:
patent: 4149827 (1979-04-01), Hofmann, Jr.
patent: 4227862 (1980-10-01), Andrew et al.
patent: 4336569 (1982-06-01), Tsuda et al.
patent: 4646528 (1987-03-01), Marcade et al.
patent: 4652976 (1987-03-01), Fushimoto
patent: 4762469 (1988-08-01), Fischer
patent: 4788447 (1988-11-01), Kiyono et al.
patent: 4791258 (1988-12-01), Youtz et al.

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