Patent ID: 8371341
Filing Date: 2013-02-12
Classification: B67D

Abstract:
1. A system including a vapor recovery valve comprising: a valve body having a fluid flow path and a vapor flow path, said fluid flow path and said vapor flow path being generally fluidly isolated from each other and coaxially arranged in at least part of said valve body; a vapor control valve positioned in said vapor flow path and being movable between a first position wherein said vapor control valve at least partially impedes the flow of vapor therethrough and a second position wherein said vapor control valve does not impede or less impedes the flow of vapor therethrough compared to when said vapor control valve is in said first position; and an actuator magnetically coupled to said vapor control valve, said actuator being configured such that sufficient fluid flow through said fluid flow path in a first direction causes said actuator to move said vapor control valve from said first position to said second position in a second direction that is generally not the same as said first direction, wherein said actuator includes a diaphragm positioned in a chamber and dividing said chamber into a pair of cavities and wherein said vapor control valve is configured such that unequal pressure in said cavities caused by a flow of fluid through said fluid flow path causes said actuator to move which, in turn, causes said vapor control valve to move, and wherein one of said cavities is in direct fluid communication with at least part of said fluid flow path such that at least part of said fluid flow in said fluid flow path is directable into said one of said cavities to provide a pressure in said at least one of said fluid cavities generally equal to the stagnation pressure of said at least part of said fluid flow.