Fluid flow regulating valve using thermal expansion material

Details Fluid flow regulating valve using thermal expansion material Fluid flow regulating valve using thermal expansion material

1997-08-08

1999-11-16

Walton, George L.

Valves and valve actuation

Heat or buoyancy motor actuated

60528, 236 68C, 236 99A, 236101R, 25112901, F16K 3104

Patent

active

059842571

ABSTRACT:
A fluid flow regulating valve using a thermal expansion material. The valve includes a body provided with inlet and outlet ports; a displacement control part in the body, the displacement control part containing the thermal expansion material and displaced toward the outlet port when the thermal expansion material expands, thereby regulating a degree of opening of the outlet port; and a heater for heating the thermal expansion material within the displacement control part. The displacement control part includes a container containing the thermal expansion material, the container being coupled to the body and an expansion plate for regulating the degree of opening of the outlet port by being expanded in accordance with an expansion of the thermal expansion material, the expansion plate being hermetically coupled to the container.

REFERENCES:
patent: 2989281 (1961-06-01), Fritts
patent: 4027848 (1977-06-01), Mundil
patent: 4053136 (1977-10-01), Perl
patent: 4096993 (1978-06-01), Behr
patent: 4943032 (1990-07-01), Zdeblick
patent: 5029805 (1991-07-01), Albarda et al.
patent: 5058856 (1991-10-01), Gordon et al.
patent: 5069419 (1991-12-01), Jerman
patent: 5325880 (1994-07-01), Johnson et al.
patent: 5419133 (1995-05-01), Schneider

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