Gear-box system including a torque converter and speed responsive means
Abstract
Abstract A GEAR-BOX SYSTEM COMPRISING A HYDRAULIC TORQUE CONVERTER FOLLOWED BY MECHANICAL STAGES, WHICH PROVIDE DIFFERENT RATIOS, AND EQUIPPED WITH INDICATING DEVICES RESPONSIVE TO THE ROTATIONAL VELOCITY OF THE OUTPUT SHAFT OF THE TORQUE CONVERTER, ONE DEVICE BEING MAINTAINED IN THE ACTIVE POSITION AS LONG AS THE ROTATIONAL VELOCITY OF THE OUTPUT SHAFT OF THE TORQUE CONVERTER IS LOWER THAN A PREDETERMINED VALUE AT WHICH THE SLIPPAGE OF THE TORQUE CONVERTER IS CONSIDERED EXCESSIVE AND CALLS FOR DOWNSHIFTING OF THE GEAR-BOX. A SECOND INDICATING DEVICE IS MAINTAINED IN THE ACTIVE POSITION WHEN THE ROTATIONAL VELOCITY OF THE OUTPUT SHAFT OF THE TORQUE CONVERTER EXCEEDS A PREDETERMINED VALUE WHICH IS HIGHER THAN THE AFORESAID VALUE AND AT WHICH IT IS DESIRABLE TO CHANGE TO A HIGHER RATIO OF THE GEAR-BOX. THE INACTIVE STATE OF EACH OF SAID TWO INDICATING DEVICES IS REPRESENTATIVE OF THE NORMAL OPERATIVE STATE OF THE SYSTEM AS A WHOLE.
Inventors
- 👤 Charles J Debeaud
Bibliographic Details
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