Fluid pressure control system for motor vehicle transmissions

Details Fluid pressure control system for motor vehicle transmissions Fluid pressure control system for motor vehicle transmissions

1974-09-20

1977-02-08

Scott, Samuel

Machine element or mechanism

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

Preselected indexed position

B60K 4118

Patent

active

040066525

ABSTRACT:
A fluid pressure control system for a motor vehicle transmission includes a modulator valve interposed between a manual shift valve and frictional engaging devices, such as for example, brakes and clutches, and which is adapted to be actuated so as to drain the supplied line pressure whereby the hydraulic pressure for actuating the frictional engaging devices is gradually increased below a predetermined value and then regulated to a substantially constant value above the predetermined value.

REFERENCES:
patent: 3561294 (1971-02-01), Iijima
patent: 3561295 (1971-02-01), Iijima
patent: 3563115 (1971-02-01), Iijima et al.
patent: 3643527 (1972-02-01), Ohnuma
patent: 3683721 (1972-08-01), Uozumi et al.
patent: 3688608 (1972-09-01), Leach
patent: 3707891 (1973-01-01), Asano et al.
patent: 3752015 (1973-08-01), Murakami
patent: 3831465 (1974-08-01), Murakami
patent: 3871250 (1975-03-01), Miyauchi et al.

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