Valve

Details Valve Valve

1992-01-23

1993-02-23

Chambers, A. Michael

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

137468, 251204, F16K 4900

Patent

active

051881454

ABSTRACT:
A valve comprising a valve body (1) provided with two openings (2, 3) each fitted with a flange (4, 5) for connection to pipework, and a moving valve member (6) for closing one of the two openings (3), said opening including a valve seat (26) whose profile corresponds to that of the valve member, said valve member (6) including means (14, 8, 9, 24) for displacing it towards its seat, the valve being characterized by the fact that said valve member (6) or its seat (26) is made of a shape memory alloy treated in such a manner that the shape memory effect is reversible, said piece (6, 26) made of shape memory alloy including channels (27, 31) enabling it to be fed with fluids for changing its state, thereby causing the said piece (6, 26) made of shape memory alloy to expand or contract as appropriate.

REFERENCES:
patent: 891062 (1908-06-01), Hansen
patent: 2752758 (1956-07-01), Tann
patent: 2832204 (1958-04-01), Pilling
patent: 3524467 (1970-08-01), Worley
patent: 4195655 (1980-02-01), Augsburger et al.

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