Micro-processor control of compression ratio at full load in a h

Details Micro-processor control of compression ratio at full load in a h Micro-processor control of compression ratio at full load in a h

1985-02-08

1985-10-22

Gluck, Richard E.

Pumps

Processes

F04B 4906, F01C 110

Patent

active

045485496

ABSTRACT:
A method of operating an electric drive motor for an axial flow helical screw type compressor having a slide valve member and slide stop member mounted beneath the intermeshing rotors such that the slide member controls communication between the work chamber defined by the rotors and the casing to the outlet port and the slide stop member and the valve member together control the working fluid inlet to the bores of the rotor by sensing the drive motor current and full load operation of the compressor in order to incrementally adjust the slide members in opposite directions depending upon whether or not the motor current is increasing or decreasing to thereby continuously seek the position of the slide members at which such current is at a minimum.

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Drawing, "SRM", Svenska-Rotor Maskiner AB, Feb. 18, 1981.

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