Patent ID: 8287425

Claim:
A vehicular transmission, comprising: a gear-change mechanism section that shifts power from a driving source and outputs the power to an output shaft; and a hydraulic system that supplies hydraulic pressure from an oil pump to the gear-change mechanism section via a check valve, wherein the check valve comprises: a cylindrical valve case in which a passage is formed, a valve stored within the valve case so as to be freely movable in an axial direction of the valve case, a valve seat that is formed at one end portion of the passage in the valve case and that closes the passage when the valve sits thereon, a spring for urging the valve so as to sit on the valve seat, and a spring seat fixed on an axially opposite side of the valve seat in the valve case to support the spring, wherein the check valve is structured such that (1) fluid flows into the valve case from the valve seat, along the axial direction of the valve case and out of outflow ports and (2) such that a direction of flow of the fluid within the valve case almost coincides with a movable direction of the valve.