Fluid handling – With heating or cooling of the system – Circulating fluid in heat exchange relationship
Patent
1996-12-03
1998-08-11
Chambers, A. Michael
Fluid handling
With heating or cooling of the system
Circulating fluid in heat exchange relationship
137334, 137341, 137565, 16510419, 165142, F16K 4900, F28D 1500
Patent
active
057913706
ABSTRACT:
An apparatus for supplying fluid comprising a fluid source, valve, inside tube and outside tube. The outside tube is in open communication with the fluid source and the valve. The inside tube is located within the outside tube. The inside tube is in open communication with the fluid source on one end and is spaced apart from the valve on the opposite end so that warm lower density fluid from the fluid source flows up through the inside tube displacing cool higher density fluid near the valve. The cool higher density displaced fluid is forced by gravity back to the fluid source in a fluid return path located between the inside tube and the outside tube. When the valve is in the closed position for an extended period of time, the apparatus maintains a continuous fluid flow from the fluid source through the inside tube to a location near the valve. When the valve is opened warm fluid flows immediately through the valve saving both time and fluid. This circulation continues until thermal equilibrium between the ambient air and the fluid in the fluid source is achieved. A heater may be placed in thermal communication with the fluid source in order to maintain the temperature of the fluid within the fluid source at a desired temperature. A pump may also be added to convert the apparatus from passive to active. The pump is placed in communication with the fluid source and inside tube only.
REFERENCES:
patent: 350568 (1886-10-01), Strobel
patent: 874991 (1907-12-01), Frien
patent: 1953611 (1934-04-01), Jardine
patent: 2932313 (1960-04-01), Noland
patent: 3319709 (1967-05-01), Strunk
patent: 4425936 (1984-01-01), Goss
patent: 4694896 (1987-09-01), Navratil
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