Change-speed transmission

Claim 1

A CHANGE-SPEED TRANSMISSION, ESPECIALLY FOR MOTOR VEHICLES HAVING A DRIVING UNIT, COMPRISING: A HYDRODYNAMIC TORQUE CONVERTER INCLUDING AN INPUT SIDE, AN OUTPUT SIDE, PUMP MEANS, TURBINE MEANS AND GUIDE WHEEL MEANS, PLANETARY GEAR SET MEANS INCLUDING INPUT AND OUTPUT MEANS, SAID PLANETARY GEAR SET MEANS BEING OPERATIVELY CONNECTED IN THE TRANSMISSION AHEAD OF THE TORQUE CONVERTER AS SEEN IN THE NORMAL DIRECTION OF TRANSMISSION OF TORQUE, AND BEING LOCATED ON THE OUTPUT SIDE OF THE TORQUE CONVERTER, BELL-SHAPED HOUSING MEANS OPERATIVELY CONNECTING THE INPUT MEANS OF SAID PLANETARY GEAR SET WITH THE DRIVING UNIT AND SURROUNDING THE TORQUE CONVERTER, SAID PUMP WHEEL MEANS INCLUDING OUTER SHELL MEANS FORMING A LIQUID-TIGHT TORQUE CONVERTER HOUSING SURROUNDING THE TURBINE WHEEL MEANS, SAID BELL-SHAPED HOUSING MEANS BEING PROVIDED WITH A SEPARATE PART FORMING A SPACE FOR ACCOMMODATING THEREIN THE PLANETARY GEAR SET MEANS, AND SEAL MEANS FOR SEALING THE SPACE IN SAID SEPARATE HOUSING PART WITH RESPECT TO THE INTERIOR OF SAID TORQUE CONVERTER HOUSING AS WELL AS ALSO WITH RESPECT TO THE INTERIOR OF THE REMAINDER OF THE BELL-SHAPED HOUSING MEANS.