METHOD FOR DESIGNING A VALVE AND METHOD FOR PRODUCING A VALVE

摘要

A method of designing a valve presenting an orifice of section that depends on the position of the valve member of the valve, which section can thus be controlled. The method includes determining a desired variation relationship for the flow section of the valve, which relationship defines a desired variation in the section as a function of time; setting a predetermined movement relationship for the valve member; and defining the shape of the fluid flow orifice in such a manner that, at each instant, if the valve member moves in compliance with the predetermined movement relationship, the flow section remains equal to the desired section. The method makes it possible to design a valve that is simple to control.

主权项

1. A design method for designing a valve presenting a fluid flow orifice of variable section, said section depending on the position of a valve member of the valve, the position of said valve member being controlled by a command applied to the valve; the method comprising the following steps:
a) determining a desired variation relationship for the flow section of the valve, defining desired variation in the flow section of the valve as a function of time, at least over a time interval; b) setting a predetermined movement relationship that the valve member is desired to follow during said interval; and c) defining the shape of said fluid flow orifice in such a manner that, at each instant during said time interval, if the valve member moves during said interval in compliance with said predetermined movement relationship, the flow section remains equal to the section desired for that instant.