Stator structure between turbine wheel and pump wheel

摘要

Irregularities (17) are formed on circumferential areas (14) of the stator blades. They are provided to increase torque in an automatic gearbox, and to rectify flow of oil impinging on an outer surface of the blade area. Preferably, the irregularities comprise a ribbed area. This ribbed area extends in a tangential direction of the outer circumference of the blade area, near the exit area of the side of a front face.