Hydraulic regulating device for load shifted gears

Details Hydraulic regulating device for load shifted gears Hydraulic regulating device for load shifted gears

1980-10-23

1983-08-02

Braun, Leslie A.

Machine element or mechanism

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

Preselected indexed position

74752A, 74752C, B60K 4104

Patent

active

043959270

ABSTRACT:
The hydraulic regulating device for an automatic transmission system in motor vehicles having a plurality of hydraulic couplings, includes a single pressure build-up regulating valve and a single pressure decrease regulating valve and assigned to each coupling a solenoid operated directional control valve having its working port connected to the couplings, its pressure port connected via a switch-on reversing valve to the pressure build-up regulating valve, and its return port connected via a switch-off reversing valve to a return conduit; both reversing valves are controlled according to predetermined pressure levels on the coupling so that in the working position of the switch-on reversing valve the coupling is connected to a stable high pressure and when the coupling process is initiated by reversing the position of the directional control valve, the switch-off reversing valve connects the coupling element to the pressure decrease regulating valve.

REFERENCES:
patent: 4274307 (1981-06-01), Iwanaga et al.
patent: 4345489 (1982-08-01), Muller et al.

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