Patent ID: 6125822
Filing Date: 2000-10-03
Classification: F02M,Y10T

Abstract:
A pressure relief valve for releasing a fluid under pressure, comprising:a body having a bore extending from an inlet and terminating in an outlet;a first chamber communicating with the inlet;a second chamber communicating with the first chamber and the outlet and wherein the cross sectional area of the second chamber is greater than that of the first chamber;an operator seat disposed within said body;an operator movably disposed within the bore and being engageable with said operator seat and said operator comprising a blocking surface for blocking at least a portion of the flow of fluid; anda bias interconnected with said operator and urging said operator against said operator seat;wherein when the pressure of the fluid exceeds a threshold pressure, said operator is unseated whereby fluid flows at a first flow volume, so that at least a portion of the fluid impinges said blocking surface causing said blocking surface to move within the second chamber whereby fluid flows at a second flow volume, the second flow volume being greater than the first flow volume.