Patent ID: 8196894
Filing Date: 2012-06-12
Classification: C01B,F16K,H01M,Y02E,Y10T

Abstract:
1. A valve comprising a variable diameter orifice, wherein the variable diameter orifice is responsive to a difference between an inlet pressure and an outlet pressure, wherein the valve is fluidically connected to a fuel supply and at least one of the inlet and outlet pressures corresponds to a pressure of the fuel supply, wherein the valve comprises a conical shell, said conical shell has an apex defining the variable diameter orifice and said conical shell's base is sealingly attached to a housing of the valve, wherein a shape of the conical shell is substantially the same after attachment to the housing as before attachment, wherein the valve further comprises a pin connected to the housing and a portion of the pin traverses through the variable diameter orifice, and wherein the orifice expands to allow fuel to flow through an annular opening between the orifice and the pin and contracts to establish a seal between the shell and the pin.