Patent ID: 6328054
Filing Date: 2001-12-11
Classification: F17C,G05D,Y10T

Abstract:
A fluid pressure regulator for regulating the pressure of gas from a supply of pressurized gas, said regulator comprising:a fluid passage having an inlet and an outlet for the flow of pressurized gas from a supply of pressurized gas through said regulator;a poppet valve movably positioned in said regulator for adjustably throttling said fluid passage and the flow of pressurized gas therethrough;a balancing bellows located opposite said poppet valve and connected thereto, said balancing bellows having approximately the same area as said poppet valve so that the inlet pressure force from said gas acting on said poppet valve has little effect on the pressure of said gas supplied by said regulator; anda piston connected to the poppet valve for guiding and damping the movement of the poppet valve, the piston being located outside of the fluid passage so that contamination of the pressurized gas from generation of particulate from the piston is precluded.