Transmission with hydrodynamic torque converter and retarder

A transmission assembly comprising:

• a speed-change gear transmission having an input shaft, an output shaft and selectively actuatable clutches for establishing respective transmission ratios between said input shaft and said output shaft;
• a hydrodynamic torque converter having a driven input element and an output element connected to said input shaft;
• a hydrodynamic retarder having a stator and a rotor and disposed between said torque converter and said gear transmission;
• a common housing for said torque converter, said retarder and said gear transmission, said housing being separated by a partition into a first housing section containing said retarder and said gear transmission and a second housing section containing said converter, said partition directly sealing said sections from one another in a fluid-tight manner and being exposed to the interiors of both said sections, said stator being affixed directly to said partition, said partition exclusively closing off both said sections from one another;
• a hydraulic pump mounted on said partition;
• and
• a converter counterpressure valve, a lubricating valve and at least one control valve for the converter and the retarder formed directly in said partition, said partition being further formed directly with passages connected to said pump, said retarder, said converter, and said valves.