Patent ID: 9033681
Filing Date: 2015-05-19
Classification: F04C,F16H,Y10T

Abstract:
1. An integrated valve body and pump for an automatic transmission comprising, in combination, a drive shaft and a chain drive sprocket secured to said drive shaft, a driven chain sprocket and a chain rotationally coupling said drive and said driven chain sprockets, a transmission control valve body that defines a plane and is disposed within a transmission casing, the transmission control valve body having a first solenoid operated logic valve spool configured to control a shift, a second solenoid controlled valve spool configured to regulate hydraulic pressure in response to a torque signal, a third valve spool configured to control an actuator feed limit pressure, and a plurality of passageways, and wherein the transmission control valve body has a side surface substantially perpendicular to the plane and which surrounds an internal volume having an inlet and an outlet, a pump rotor received within said internal volume, said pump rotor having a shaft coupled to said driven chain sprocket, wherein the pump rotor defines an axis of rotation, and wherein longitudinal axes of each of said first valve spool, second valve spool, and third valve spool are disposed on the plane of the transmission control valve body and perpendicular to the axis of rotation of the pump rotor and a longitudinal axis of said inlet is perpendicular to said plane of said transmission control valve body and perpendicular to said axis of rotation of said pump rotor.