Compressor control

Details Compressor control Compressor control

1976-07-26

1980-03-04

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Single motor control element responsive to means sensing...

417 43, 417 26, F04B 4900

Patent

active

041915119

ABSTRACT:
Control of the main gas stream from a compressor is accomplished by automatically adjusting the amount of gas vented from the compressor output by a variable relief valve or other flow restriction means, with the speed of the compressor being automatically adjusted to maintain the compressor output at a level permitting effective control within the useful range of the venting system. In a preferred embodiment, the amount by which the position of the means used to restrict flow through the vent conduit departs from a desired operating range is used to generate a compressor acceleration signal which is in turn used to generate a compressor speed set point signal from which the compressor speed is controlled.

REFERENCES:
patent: 1160562 (1915-11-01), Banner
patent: 1210030 (1916-12-01), Baumann
patent: 2601849 (1952-07-01), Lee
patent: 3092127 (1963-06-01), Bracken
patent: 3292846 (1966-12-01), Harder
patent: 3362626 (1968-01-01), Schlirf
patent: 3380650 (1968-04-01), Drummond
patent: 3891344 (1975-06-01), Braytenbah
patent: 3994623 (1976-11-01), Ruthstein

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