Hydrostatic operating mode hydraulic actuator preferably for bac

Details Hydrostatic operating mode hydraulic actuator preferably for bac Hydrostatic operating mode hydraulic actuator preferably for bac

1991-09-18

1993-01-26

Look, Edward K.

Power plants

Pressure fluid source and motor

Apparatus having means responsive to or ameliorating the...

60421, 60464, 60478, F16D 3102

Patent

active

051813807

ABSTRACT:
An hydraulic actuator composed of a double-acting actuator, a mobile switching member disposed in a housing connected hydraulically to the actuator, two fluid inlet and outlet pipes and a control member adapted to command the mobile switching member to move between a neutral configuration and an active service configuration. A variable speed pump system is connected to the housing by an auxiliary circuit; the mobile switching member has an active second configuration in which the actuator communicates with the auxiliary circuits, whereby the actuator, the pump system and the auxiliary circuit constitute a hydrostatic transmission.

REFERENCES:
patent: 2921562 (1960-01-01), Westbury et al.
patent: 2956408 (1960-10-01), Fowler
patent: 3902318 (1975-09-01), Becker et al.
patent: 4905933 (1990-03-01), Ako
patent: 5072584 (1991-12-01), Mauch et al.

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