Anti-friction slide valve support for screw compressor

Details Anti-friction slide valve support for screw compressor Anti-friction slide valve support for screw compressor

1979-10-09

1981-08-04

Vrablik, John J.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

308 6R, F04C 1816, F04C 2908, F16C 2904

Patent

active

042819750

ABSTRACT:
A screw compressor including a coacting male and female rotor with respect to which a slide valve is operable to control the discharge of the compressor and also regulate the pressure of the fluid pumped or compressed thereby, the improvement comprising a limited number of different embodiments of anti-friction constructions for supporting the slide valve within the cylindrical bore provided therefor in the housing within which the male and female rotors operate, thereby minimizing the wear upon the slide valve within the bore therefor and minimizing the force required to move the slide valve.

REFERENCES:
patent: 2058331 (1936-10-01), Long
patent: 2352911 (1944-07-01), Osplack
patent: 3088659 (1963-05-01), Nilsson et al.
patent: 3093424 (1963-06-01), Pernetta
patent: 3432089 (1969-03-01), Schibbye
patent: 3734653 (1973-05-01), Edstrom et al.
patent: 3738780 (1973-06-01), Edstrom
patent: 3996750 (1976-12-01), Brcar
patent: 4211147 (1980-07-01), Panissidi et al.

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