Fluid control apparatus

G - Physics – 05 – D

Patent

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Details

G05D 7/00 (2006.01) F16K 31/68 (2006.01) G05D 7/06 (2006.01)

Patent

CA 2589640

A method and apparatus for controlling the flow of a fluid past a device having a flow adjusting device comprising transmitting a temperature to a thermally reactive material having a coefficient of thermal expansion which produces a volume change in the thermally reactive material in response to a change in the temperature. The thermally reactive material is enclosed within a container having a movable portion which is moved in response to the volume change of the thermally reactive material and the movement of the movable portion is applied to actuate the flow adjusting device. The flow adjusting device may comprise a fluid propulsion device such as a fan or pump or a throttling device such as a throttling , check, or shuttle valve.

L'invention concerne un procédé et un appareil destinés à commander l'écoulement d'un fluide à travers un dispositif possédant un dispositif de réglage d'écoulement qui consiste à transmettre une température à une matière thermiquement réactive possédant un coefficient d'expansion thermique qui produit un changement de volume dans la matière thermiquement réactive en réaction à un changement de température. La matière thermiquement réactive est contenue dans un conteneur possédant une partie mobile qui est déplacée en réaction au changement de volume de la matière thermiquement réactive et le mouvement de la partie mobile est appliqué afin de déclencher le dispositif de réglage d'écoulement. Ce dispositif peut comporter un dispositif de propulsion de fluide tel qu'une soufflante ou une pompe, ou un dispositif de réglage du débit notamment une vanne d'étranglement, un clapet de retenue, ou une vanne sélective.

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