Power plants – Motive fluid energized by externally applied heat – Having apparatus cleaning – sealing – lubricating – purging,...
Patent
1975-06-12
1977-02-01
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Having apparatus cleaning, sealing, lubricating, purging,...
184 6, 277 15, F01K 2518, F01K 2522
Patent
active
040055809
ABSTRACT:
The invention is a system and method for sealing about a shaft employed for conveying power between the interior of a working chamber having working fluid under high pressure, and the exterior of such chamber. The working fluid is sealed from escape along the shaft by interposing a liquid lubricated seal to sustain substantially all of the pressure differential, and between the working chamber and the lubricated seal interposing a second seal employing a sealing fluid which is preferably gaseous at the temperatures and pressures to which it is subjected. This second seal fluid is not significantly soluble in the first seal fluid used in the lubricated seal and is compatible with the working fluid used in the working chamber. The second sealing fluid is recirculated in a closed cycle in a manner to sweep the working fluid away from the lubricant and the lubricant away from the working fluid, there being provision for drawing off portions of the first and second seal fluids between the two seals and separating them from one another for reuse, and for drawing off the remaining portion of the second seal fluid and a portion of the working fluid between the second seal and the working chamber and separating the second seal fluid and working fluid from one another for reuse. Condensation and gravity separation are employed in the separations mentioned.
REFERENCES:
patent: 3392804 (1968-07-01), La Fleur
patent: 3670850 (1972-06-01), Swearingen
patent: 3831381 (1974-08-01), Swearingen
LandOfFree
Seal system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Seal system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seal system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1086179