Patent ID: 6240951
Filing Date: 2001-06-05
Classification: F16K,G05D,Y10T

Abstract:
A valve for use in an inflation system, comprising:a valve body with an inlet port, a charging port, a first chamber, a neutral thrust diffuser, a second chamber, a neutral thrust over pressure relief vent, and an outlet port;wherein said inlet port is in fluid communication with said first chamber;wherein said charging port is in fluid communication with said first chamber;wherein said first chamber has a first outlet and a second outlet;wherein said first outlet is blocked by a blocking means, and said second outlet is blocked by a secondary burst disk;wherein said blocking means prevents fluid communication between said first chamber and said second chamber;wherein an actuating means will rupture said blocking means at a predetermined actuation point;wherein said second chamber is in fluid communication with said outlet port, and/or said neutral thrust over pressure relief vent;a regulating piston comprising a piston, and a regulating spring, wherein said piston slidably moves within said second chamber such that said regulating piston allows fluid communication between said second chamber and said neutral thrust over pressure relief vent, or between said second chamber and said outlet port, or both;wherein said secondary burst disk prevents fluid communication between said first chamber and said neutral thrust diffuser;wherein when fluid flows from said second chamber to said outlet port, the fluid flows through a cross-sectional flow area one, which is the cross sectional area of said outlet port which is in fluid communication with said second chamber;wherein when fluid flows from said second chamber to said neutral thrust over pressure relief vent, the fluid flows through a cross-sectional flow area two which is the cross sectional area of said neutral thrust over pressure relief vent which is in fluid communication with said second chamber;wherein when said actuating means ruptures said blocking means, the fluid flows through to said second chamber, wherein the fluid exerts pressure on said regulating piston, and slidably moves said piston within said second chamber, such that increased fluid pressure causes the regulating piston to move in a manner which decreases said cross-sectional flow area one, as the fluid pressure continues to increase, said cross-sectional flow area one continues to decrease, and said piston slidably moves to a position which allows fluid communication between said second chamber and said neutral thrust over pressure relief vent, with increasing fluid pressure said cross-sectional flow area one continues to decrease, and said cross-sectional flow area two continues to increase, until said piston can no longer move due to the constraints of said second chamber in combination with said regulating spring;wherein as the fluid pressure decreases, said piston slidably moves such as to decrease said cross-sectional flow area two, and increase said cross-sectional flow area one; andwherein if the fluid in the first chamber reaches a pressure equal to the burst pressure of said secondary burst disk, said secondary burst disk will burst, allowing the fluid to exit said first chamber through said neutral thrust diffuser.