Transmission and turbine retarder

Claim 1

MEANS FOR RETARDING THE SPEED OF AN AUTOMATIVE VEHICLE HAVING AN ENGINE COOLING SYSTEM, GROUND-ENGAGING WHEELS AND A TRANSMISSION INCLUDING A HOUSING AND GEARS NORMALLY SHIFTABLE TO HIGH RATIOS AT LOW VEHICLE SPEEDS AND LOW RATIOS AT HIGH VEHICLE SPEEDS AND HAVING A POWER TAKE-OFF CONNECTED TO SAID TRANSMISSION AT A POINT HAVING AT LEAST ONE PAIR OF RATIO GEARS BETWEEN SAID POWER TAKE-OFF AND THE OUTPUT SHAFT OF SAID TRANSMISSION AND MEANS OPERATIVELY CONNECTING SAID WHEELS AND SAID TRANSMISSION, THE COMBINATION COMPRISING: AN IMPELLER HOUSING AND AN IMPELLER ROTATABLY MOUNTED WITHIN SAID IMPELLER HOUSING; MEANS DRIVING SAID IMPELLER FROM SAID POWER TAKE-OFF, SAID DRIVING MEANS INCLUDING A SELECTABLY ENGAGEABLE CLUTCH LOCATED IN THE POWER TRAIN BETWEEN SAID POWER TAKE-OFF AND SAID IMPELLER AND MEANS MOUNTING SAID IMPELLER HOUSING RIGIDLY WITH RESPECT TO SAID TRANSMISSION HOUSING; SEALING MEANS ISOLATING THE INTERIOR OF SAID IMPELLER HOUSING FROM THE INTERIOR OF SAID TRANSMISSION HOUSING; INLET AND OUTLET PORTS FOR SAID IMPELLER HOUSING AND A CONDUIT CONNECTING SAID INLET PORT TO THE LOW TEMPERATURE SIDE OF THE ENGINE COOLING SYSTEM AND ANOTHER CONDUIT CONNECTING SAID OUTLET PORT TO THE HIGH TEMPERATURE SIDE OF SAID ENGINE-COOLING SYSTEM WHEREBY THE ENERGY ABSORPTION MEDIUM FOR SAID IMPELLER IS CIRCUITED COMPLETELY INDEPENDENTLY OF CONDITIONS WITHIN SAID TRANSMISSION HOUSING.