Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1977-01-17
1978-03-14
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 2, 277 3, 277 15, 277 27, 277 29, F16J 1540
Patent
active
040788091
ABSTRACT:
A shaft seal system to prevent pressurized working substances contained within a rotary machine from escaping to surrounding areas of relatively lower pressure includes a first seal disposed between a high pressure region and a first region operating at a relatively lower substantially constant pressure. A second seal is disposed between the high pressure region and a second region operating at a relatively lower variable pressure. Sealing fluid is delivered to the high pressure region whereat the fluid flows axially in opposite directions along the shaft to the first and second regions. The flow of fluid toward the second region is restricted to a greater degree than the flow of fluid toward said first region. Changes in the flow of fluid through said first and second seals to the first and second regions resulting from changes in the operating pressure of the second region are monitored. A valve regulates the flow of sealing fluid to the high pressure region in accordance with the monitored changes in fluid flow to maintain a substantially constant flow of fluid toward the first region irrespective of changes in the operating pressure of the second region.
REFERENCES:
patent: 1841863 (1932-01-01), Van Rijswijk
patent: 3131939 (1964-05-01), Cuny
patent: 3508758 (1970-04-01), Strub
patent: 3533635 (1970-10-01), Godin et al.
patent: 3695621 (1972-10-01), Damratowski et al.
patent: 3740057 (1973-06-01), Doyle et al.
patent: 3831381 (1974-08-01), Swearingen
patent: 3906730 (1975-09-01), Bellati et al.
patent: 3926442 (1975-12-01), Muller
patent: 3937022 (1976-02-01), Swearingen
patent: 4005580 (1977-02-01), Swearingen
Garrick Joseph C.
Keenan J. Thomas
Carrier Corporation
Curtin J. Raymond
Deutsch Barry E.
Ward, Jr. Robert S.
LandOfFree
Shaft seal assembly for a rotary machine 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 assembly for a rotary machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft seal assembly for a rotary machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2228032