Rotary vane vacuum pump with shaft seal

Details Rotary vane vacuum pump with shaft seal Rotary vane vacuum pump with shaft seal

1991-05-29

1992-10-20

Vrablik, John J.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

277 59, 403356, 418104, F04C 2502

Patent

active

051565323

ABSTRACT:
A rotary vane vacuum pump includes a pump housing; a bearing support having a bearing bore; a drive motor having an output shaft extending into the bearing bore; and a pump rotor accommodated in the pump housing and having a rotor shaft extending into the bearing bore. The rotor shaft and the output shaft have respective radial end faces oriented towards one another and the output shaft and the rotor shaft have identical diameters. There is further provided a torque-transmitting coupling connecting the output shaft with the rotor shaft at respective radial end faces thereof; a first sealing ring situated in the bore and sealingly surrounding the output shaft; a second sealing ring situated in the bore and sealingly surrounding the rotor shaft; and a lubricant chamber formed by a part of the bearing bore and being bounded and sealed by the first and second sealing rings.

REFERENCES:
patent: 4162137 (1979-07-01), Bjerke
patent: 4311440 (1982-01-01), Eberhardt
patent: 4669738 (1987-06-01), Netzel
patent: 4737087 (1988-04-01), Hertell
patent: 5022836 (1991-06-01), Tokumitsu et al.

Affiliated with

Also associated with

Rating

Rotary vane vacuum pump with shaft seal 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 vacuum pump with shaft seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary vane vacuum pump with shaft seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-188866