Rotary vane pump having a plurality of inlet and outlet slots in

Details Rotary vane pump having a plurality of inlet and outlet slots in Rotary vane pump having a plurality of inlet and outlet slots in

1986-11-25

1988-09-20

Vrablik, John J.

Rotary expansible chamber devices

Diverse rotary expansible chamber devices

418 94, 418172, 418176, 418186, 418210, F04C 1100, F04C 1846

Patent

active

047721855

ABSTRACT:
A rotary vane vacuum pump assembly is disclosed which is characterized by the absence of the discharge of lubricating oil with the exhaust airstream, and which includes an internal stator and a surrounding rotor. Pivotal vanes are mounted on the interior of the rotor, so as to define a plurality of air chambers which expand and contract as the rotor rotates about the stator. Also, a freely rotatably cylindrical sleeve is positioned between the stator and vanes, so that the relative sliding contact of the vanes on the surface of the sleeve is minimized, to thereby eliminate the need for internal oil lubrication. In one preferred embodiment, a hydraulic pump is joined to the vacuum pump to form a compact assembly, and wherein the hydraulic pump supplies oil to the bearings which mount the rotor.

REFERENCES:
patent: 1253460 (1918-01-01), Bodge
patent: 1886206 (1932-11-01), Mandler
patent: 2430251 (1947-11-01), Sharp
patent: 4451215 (1984-05-01), Winkler et al.
patent: 4478562 (1984-10-01), Schippers et al.

Affiliated with

Also associated with

Rating

Rotary vane pump having a plurality of inlet and outlet slots in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary vane pump having a plurality of inlet and outlet slots in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary vane pump having a plurality of inlet and outlet slots in will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1745836