Patent ID: 6786231
Filing Date: 2004-09-07
Classification: F23N,G05D,Y10T

Abstract:
An adjustable fluid flow regulator having a regulator chamber comprising:a first port in communication with a pressure signal; a second port, through which the cross-sectional opening is controllably restricted to regulate a control pressure based on the pressure signal; a tapered pin disposed within the second port, for controllably restricting the cross-sectional opening area through the second port; a diaphragm, which is adjustably moveable relative to changes in pressure, for controllably displacing the tapered pin relative to changes in the pressure signal; a spring axially located around the second port opening lip for biasing the tapered pin towards the diaphragm and away from closure against the port; wherein the tapered pin is separate and not attached to the diaphragm; and wherein the control pressure controls a second diaphragm and poppit, which regulate the fluid flow through a valve.