Screw compressor with slide valve movement preventing structure

Details Screw compressor with slide valve movement preventing structure Screw compressor with slide valve movement preventing structure

1988-07-25

1990-04-03

Vrablik, John J.

Rotary expansible chamber devices

With removal or accommodation of solid foreign material in...

With filter

418201, 418DIG1, F04C 1816, F04C 2908

Patent

active

049136348

ABSTRACT:
A screw compressor in which a pair of screw rotors supported by bearings and accommodated in a casing act to compress a gas and in which a slide valve disposed between an inner wall of the casing and the pair of screw rotors is capable of moving axially while maintaining a small gap between itself and the outer peripheries of the screw rotors, the rate of gas flow bypassed to an inlet port during compression being regulated by axially moving the slide valve. The screw compressor has: a side cover in which bearing for supporting the pair of screw rotors on the discharge side and a slide valve driving hydraulic means are incorporated and which is disposed on the discharge side of the screw rotors; a discharge axial port formed in the side cover; and at least one projection continuous with an opening edge of the discharge axial port and in contact with a semi-circular surface of the slide valve facing in the radial direction thereof, the projection acting to limit the radial movement of the slide valve while the slide valve is moving in contact with the top end of the projection.

REFERENCES:
patent: Re29283 (1977-06-01), Shaw
patent: 3088659 (1963-05-01), Nilsson et al.
patent: 3796526 (1974-03-01), Cawley
patent: 3904322 (1975-09-01), Axelsson
patent: 4388048 (1983-06-01), Shaw et al.
patent: 4478054 (1984-10-01), Shaw et al.

Affiliated with

Also associated with

Rating

Screw compressor with slide valve movement preventing structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Screw compressor with slide valve movement preventing structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screw compressor with slide valve movement preventing structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1354730