Low consumption pneumatic controller

Details Low consumption pneumatic controller Low consumption pneumatic controller

G - Physics

05

D

G05D 16/18 (2006.01) F15B 13/16 (2006.01)

Patent

CA 2665174

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 such as a relay, a process pressure detector, and a rack-and-pinion feedback assembly. The a rack-and-pinion feedback assembly provides 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, telle qu'un relais, un détecteur de pression de processus et un ensemble de réaction à crémaillère. Cet ensemble de réaction à crémaillère assure l'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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