Patent ID: 6302143
Filing Date: 2001-10-16
Classification: G05D,Y10T

Abstract:
In a pressure regulating valve of the type including a housing assembly defining a servo regulator valve seat and containing a closure member moveable along a first axis toward and away from the servo regulator valve seat by means of a diaphragm responsive to force exerted by a regulator spring between the diaphragm and a spring retainer whose position along the first axis is determined in part by an actuator, the improvement which comprises:a lever mounted for pivotal movement about a second axis transverse to the first axis, the spring retainer being coupled to said lever at a first location separated from the second axis, whereby the regulator spring biases said lever to rotate about the second axis in a first direction; the actuator being coupled to said lever and operable, when energized, to rotate said lever about the second axis in a second direction opposite the first direction;a first stop positioned to limit rotation of said lever in the first direction;a second stop positioned to limit rotation of said lever in the second direction;said lever is of a configuration having first and second portions projecting in separate directions from the second axis;the spring retainer is coupled to said lever at a location on the first portion of the lever: andthe actuator is a solenoid assembly coupled to said lever at a location on the second portion of the lever.