Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1984-08-23
1987-03-24
Braun, Leslie
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74870, 74877, 474 12, 474 28, B60K 4118
Patent
active
046515950
ABSTRACT:
A kickdown system for an infinitely variable belt-drive transmission comprises a primary pulley having a hydraulically shiftable disc, a secondary pulley having a hydraulically shiftable disc, a belt engaged with both pulleys, and a hydraulic circuit having a pump for supplying oil. A transmission ratio control valve is provided to be responsive to engine speed for controlling the oil and for shifting the disc of the primary pulley to change the transmission ratio, and a pressure regulator valve is provided to respond to the transmission ratio for increasing the pressure of the oil with an increase of the transmission ratio. A kickdown switch is provided to produce a signal upon the full depression of an accelerator pedal of a vehicle. A solenoid device is responsive to the signal for operating the pressure regulator valve so as to increase the pressure of the oil, whereby the downshifting of transmission is enhanced.
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Braun Leslie
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Rolnicki Joseph M.
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