F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
126/11, 285/41
F16L 55/00 (2006.01) F16L 27/08 (2006.01) F16L 55/07 (2006.01) F24J 2/46 (2006.01)
Patent
CA 1135748
ABSTRACT OF THE DISCLOSURE A rotary fluid coupling for use with such devices as tracking concentrating solar collectors is disclosed which is capable of providing excellent sealing characteris- tics over a wide temperature range at relatively low inter- nal fluid pressures. The coupling includes a stationary body member which defines an internal fluid passage operating in conjunction with a conduit member one end of which is received the stationary body member forming a con- tinuous passage therethrough wherein the conduit member is rotatable within the stationary body. A dual sealing system is employed in which a pair of resilient radial seals are utilized spaced axially along the interface between the sta- tionary member and the conduit member. Any leakage past the first seal is collected through a drain opening in the sta- tionary member between the two radial seals. A container may be attached to the drain opening to indicate and collect any leakage at the rotary joint. In this manner the second seal, then, becomes a pressure seal and the leakage container prevents any possible damage being done by the leakage of corrosive fluids from the system and serves to indicate required maintenance. The rotary joint solves the problem of preventing leakage over a wide temperature range in a low-cost, simple manner.
356094
Evans Richard A.
Rasmussen Robert F.
Honeywell Inc.
Smart & Biggar
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