초록 ▼

A balanced fluid pressure regulator of the disclosed embodiment comprises a balancing bellows inside a sensing bellows to minimize the supply pressure effect for improved performance while reducing the size and weight of the regulator in comparison to a conventional regulator. A sensing duct communi

A balanced fluid pressure regulator of the disclosed embodiment comprises a balancing bellows inside a sensing bellows to minimize the supply pressure effect for improved performance while reducing the size and weight of the regulator in comparison to a conventional regulator. A sensing duct communicates the enclosed space between the bellows with the fluid passage of the regulator downstream from a poppet valve. The cross-sectional area of the fluid passage is reduced in the vicinity of the sensing duct for decreasing the pressure in the enclosed space at high gas flow rates. The valve seat in the regulator is supported so it is free to move during assembly of the regulator to self-align the seat with the poppet valve.

대표청구항 ▼

[ We claim:] [11.]11. A method of reducing the size and weight of a fluid pressure regulator for regulating the pressure of gas from a supply of pressurized gas, said method comprising:balancing a poppet valve of the regulator with respect to inlet pressure of pressurized gas on said poppet valve by

[ We claim:] [11.]11. A method of reducing the size and weight of a fluid pressure regulator for regulating the pressure of gas from a supply of pressurized gas, said method comprising:balancing a poppet valve of the regulator with respect to inlet pressure of pressurized gas on said poppet valve by providing a balancing bellows opposite said poppet valve and connected thereto, said balancing bellows having approximately the same area contacted by the inlet pressure of the pressurized gas in the closed position of the regulator as said poppet valve, andlocating a sensing bellows of said regulator about said balancing bellows.