Low consumption pneumatic controller

Details Low consumption pneumatic controller Low consumption pneumatic controller

G - Physics

05

D

G05D 16/18 (2006.01) F15B 9/02 (2006.01)

Patent

CA 2665171

A pneumatic controller for controlling a process advantageously reduces fluid consumption by providing a proportional adjustment to a feedback signal. The pneumatic controller comprises a pneumatic control stage, a process pressure detector, and a feedback proportioning device. The feedback proportioning device uses a feedback cantilever component to provide the proportional adjustment of the feedback signal, thereby reducing the fluid consumption of the pneumatic controller.

La présente invention concerne une unité de commande pneumatique conçue pour commander un processus. Cette unité présente l'avantage de réduire la consommation de fluide grâce à un ajustement proportionnel d'un signal de réaction. L'unité de commande pneumatique comprend un étage de commande pneumatique, un détecteur de pression de processus et un dispositif proportionneur de réaction. Le dispositif proportionneur de réaction utilise un composant de réaction en porte-à-faux afin d'assurer un ajustement proportionnel du signal de réaction, ce qui permet de réduire la consommation de fluide de l'unité de commande pneumatique.

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