Shaft seal with lip lifting in response to shaft rotation and ga

Details Shaft seal with lip lifting in response to shaft rotation and ga Shaft seal with lip lifting in response to shaft rotation and ga

1984-12-17

1986-01-21

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 1, 277 25, 277 27, 277 95, 277152, 277 53, F16J 1532, F16J 1534, F16J 1546

Patent

active

045653780

ABSTRACT:
Apparatus for effecting a seal between a rotary shaft and its enclosure includes a sealing element having an elastic lip portion coupled to the shaft for rotation therewith and a sealing portion associated with the enclosure, the elastic lip portion forming a contact seal with the sealing portion when the shaft is stationary or rotating slowly. The elastic lip portion tends to lift from the sealing portion to form a non-contact seal upon a predeterminable increase in the rate of shaft rotation. Compressed gas is introduced into a region between the rotary elastic lip portion and the sealing portion to form a gas cushion therebetween to facilitate lifting of the elastic lip portion.

REFERENCES:
patent: 2326824 (1943-08-01), Browne et al.
patent: 2418707 (1947-04-01), Groot
patent: 3088744 (1963-05-01), Ezekiel et al.
patent: 4204689 (1980-05-01), Johansson

Affiliated with

Also associated with

Rating

Shaft seal with lip lifting in response to shaft rotation and ga does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shaft seal with lip lifting in response to shaft rotation and ga, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft seal with lip lifting in response to shaft rotation and ga will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2295459