Line pressure boost control valve for hydraulic control system o

Details Line pressure boost control valve for hydraulic control system o Line pressure boost control valve for hydraulic control system o

1979-04-23

1981-12-22

Braun, Leslle

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, B60K 4106, B60K 4110

Patent

active

043064698

ABSTRACT:
In a hydraulic control system for an automatic power transmission for an automotive vehicle, a line pressure booster valve is provided to boost the line pressure to be developed by the pressure regulator valve of the control system when a downshift is to be made from the highest one of the gear ratios in the automatic forward drive range to the higher one of the gear ratios in a manual forward drive range of the transmission system.

REFERENCES:
patent: 3274848 (1966-09-01), Konrad et al.
patent: 3495481 (1970-02-01), Ohie et al.
patent: 3525275 (1970-08-01), Lemieux
patent: 3546973 (1970-12-01), Ohie et al.
patent: 3561295 (1971-02-01), Iijima
patent: 3587353 (1971-06-01), Iijima
patent: 3613484 (1971-10-01), Pierce et al.
patent: 3667323 (1972-06-01), Irie
patent: 3706240 (1972-12-01), Borneman et al.
patent: 3714836 (1973-02-01), Pierce, Jr. et al.
patent: 3768338 (1973-10-01), Bahorich
patent: 4090417 (1978-05-01), Burcz et al.

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