Automatic transmission control pressure regulator

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

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Details

74865, 74868, B60K 4110

Patent

active

045065640

ABSTRACT:
A fluid pressure regulator valve for use in an automatic power transmission control system for an automotive vehicle having a throttle controlled engine and a transmission throttle valve system connected to the engine throttle, a control pressure booster forming a part of the regulator valve for increasing the regulated line pressure in the control system during operation of the transmission in selected operating modes, a hydraulic connection between the transmission throttle valve and the regulator valve for increasing the regulated line pressure upon an increase in engine torque and means for changing the operating pressure level upon a failure of the mechanical connection between the engine throttle and the transmission throttle valve so that the regulator valve operates at a higher level thereby maintaining adequate pressure on the friction elements of the transmission mechanism.

REFERENCES:
patent: 3309939 (1967-03-01), Pierce
patent: 3393585 (1968-07-01), Pierce
patent: 3505906 (1970-04-01), Lemieux
patent: 3605525 (1971-09-01), Pierce et al.
patent: 3613484 (1971-10-01), Pierce et al.
patent: 3709066 (1973-01-01), Burcz
patent: 3714836 (1973-02-01), Pierce et al.
patent: 4314488 (1982-02-01), Lauven
patent: 4331046 (1982-05-01), Leonard et al.
patent: 4347764 (1982-09-01), Lauven

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