Abstract An overrun control and pressure regulator with an inlet, an outlet and a fluid flow passage therebetween. A valve seat is provided on each side of the passage to cooperate with separate valves. The valves are interconnected by means of a stem and may be adjustably spaced from one another to control fluid flow rate. The stem is mechanically connected with a spring biased diaphragm on the outlet side of the regulator. The diaphragm is biased by an adjustable spring against outlet fluid pressure to provide for fluid regulation. If pressure on the outlet side of the regulator is suddenly decreased, the valves operate as an overrun control to terminate fluid flow through the regulator. A reset bypass is provided from the inlet side to the outlet side of the regulator.
An overrun control and pressure regulator comprising, in combination, a body having a fluid inlet and a fluid outlet with a fluid flow passage between said inlet and outlet; said passage including a first valve seat on the outlet side and a second valve seat on the inlet side; a first valve mounted to cooperate with said first valve seat; a second valve mounted to cooperate with said second valve seat for pressure regulation, said first and second valves connected by adjustable spacing means, said adjustable spacing means including knob means external said body for varying the separation of said first and second valves; and diaphragm means connected with said first valve, said diaphragm means responsive to pressure at said outlet and mechanically connected to said first valve to seat said first valve whenever said outlet flow exceeds a predetermined value. 2. The regulator of claim 1 including normally closed fluid flow bypass means from said inlet to said outlet to reset said overrun control.
Claim 2
Dependent Claim
20 words
The regulator of claim 1 wherein said diaphragm means is adjustably biased to provide additional means for adjustable pressure regulation.
Claim 3
Dependent Claim
54 words
The regulator of claim 1 wherein said adjustable spacing means includes a fixed stem interconnecting said diaphragm with said first valve, said stem also being threadably connected with a second valve stem for said second valve, said second valve stem also extending through a seal in said body and connected with said knob means.