Single stage high efficiency vapor management valve

A fuel tank isolation valve assembly configured to selectively vent fuel vapor from a fuel tank to a vapor recovery canister, the fuel tank isolation valve assembly comprising:

• a housing having an inlet and an outlet, wherein the fuel tank isolation valve assembly is fluidly coupled between the fuel tank and the vapor recovery canister, wherein the inlet is fluidly coupled to a vapor space of the fuel tank, and the outlet is fluidly coupled to the vapor recovery canister, wherein the inlet and outlet are arranged on the housing at a transverse relationship;
• a solenoid assembly disposed in the housing and configured to selectively lift a seal in a flow passage cavity off a valve seat allowing vapor to pass from the inlet to the outlet;
• and
• a poppet disposed in an OPR cavity in the housing and configured to facilitate opening a fuel vapor flow path from the fuel tank to the vapor recovery canister upon translation of the seal along a translation axis,
• wherein the inlet defines an inlet cavity that defines an inlet axis, wherein the translation axis is transverse to the inlet axis.

A fuel tank system comprising:

• a fuel tank having a vapor space;
• a vapor recovery canister;
• and
• a valve assembly having a housing, wherein the valve assembly is fluidly coupled between the fuel tank and the vapor recovery canister and arranged to selectively control fuel vapor flow between the fuel tank and the vapor recovery canister, wherein the housing of the valve assembly includes an inlet fluidly coupled to the vapor space, a valve disposed therein, and an outlet fluidly coupled to the vapor recovery canister, wherein the housing generally defines an inlet cavity, a flow passage cavity that defines a flow cavity axis, an over-pressure relief (OPR) cavity that defines an OPR cavity axis, and an outlet cavity, wherein the flow cavity axis and the OPR cavity axis are colinear.