Valves and valve actuation – Heat or buoyancy motor actuated
Patent
1990-05-29
1991-07-23
Chambers, A. Michael
Valves and valve actuation
Heat or buoyancy motor actuated
251177, 251228, 251243, F16K 3100
Patent
active
050337130
ABSTRACT:
The temperature sensitive apparatus controls fluid flow from one line to others and includes an elongated wire of a shaped memory wire that changes in length with changes in temperature extended into a valve housing for pivotally moving valve mechanism in the valve housing against the action of a spring from a fluid flow blocking position to a position permitting fluid flow upon heating the wire. The wire is connected to the valve mechanism and extends through a tube, both of which extend exterior of the valve housing with the major portion of the length of the wire being exterior thereof. The tube extends into a connecting member housing that is attached to the exterior of the valve housing and contains mechanism surrounding the tube to heat the wire. The tube is substantially thermally insulated from the interior of the valve housing. The heating mechanism may include a generator for an electric alternating field to induce a heating current in the wire, or an A.C. voltage coil to have a magnetic field which is linked to a closed electric circuit in which the wire is disposed.
REFERENCES:
patent: 2074526 (1937-03-01), Williams
patent: 2731230 (1956-01-01), Schell
patent: 2787118 (1957-04-01), Markham
patent: 3366140 (1968-01-01), Dunn
patent: 3613732 (1971-10-01), Wilson et al.
patent: 3819146 (1974-06-01), Dobson
patent: 4000848 (1977-01-01), Braukmann et al.
patent: 4027689 (1977-06-01), Wolfe
patent: 4102496 (1978-07-01), Perl
Hallenslev Bjarke
Thorsen Niels P.
Chambers A. Michael
Danfoss A/S
Easton Wayne B.
Johnson Clayton R.
LandOfFree
Temperature-sensitive actuating apparatus for a servo-apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature-sensitive actuating apparatus for a servo-apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-sensitive actuating apparatus for a servo-apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-427697