Oil-free rotary displacement compressor

Details Oil-free rotary displacement compressor Oil-free rotary displacement compressor

1983-07-25

1984-12-11

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

Helical or herringbone

418104, F01C 116, F16J 904

Patent

active

044875630

ABSTRACT:
An oil-free rotary displacement compressor including a casing having a main casing defining a compression space, a pair of rotors housed in the compression space and each having a screw thread portion and shaft portions, radial bearings and thrust bearings for journalling the rotors, shaft sealing means for sealing the shaft portions to avoid gas leaks from the compression space to outside and entry of oil into the compression space from the bearings. Floating type screw seal rings, each formed on the inner surface with a spiral screw thread and a root of thread, are each fitted over one of the suction-side shaft portions and supported by the casing in such a manner as to be movable in both the radial and the axial directions with respect to the casing. Stationary type screw seal rings, each formed with a spiral screw thread and a root of thread are each fitted over one of the discharge-side shaft portions and supported by the casing in such a manner as to be movable only in the axial direction with respect to the casing.

REFERENCES:
patent: 3535057 (1970-10-01), Kodra
patent: 4273343 (1981-06-01), Visser
patent: 4406465 (1983-09-01), Rockwood

Affiliated with

Also associated with

Rating

Oil-free rotary displacement compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil-free rotary displacement compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil-free rotary displacement compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1461094