Hydraulic fluid circuit having a hydraulic motor and a three-pos

Details Hydraulic fluid circuit having a hydraulic motor and a three-pos Hydraulic fluid circuit having a hydraulic motor and a three-pos

1999-05-11

2000-03-21

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Having a mechanical clutch or brake device in the power train

60441, 60442, F16D 3102

Patent

active

060388595

ABSTRACT:
This invention relates to a hydraulic fluid circuit comprising a reversible hydraulic motor, a braking device, two principal conduits respectively connected to the two principal supply and exhaust ports of the motor, a principal selector adapted to occupy a position of rest and two active positions in order to select the circulation of the fluid between the principal ports of the motor and the principal conduits to which they are connected. The circuit also comprises an intermediate system of selection capable of occupying a first configuration in which the principal selector is maintained in its position of rest and a second configuration in which the principal selector is allowed to leave its position of rest. The control means of the intermediate system of selection are connected to the braking device so that this intermediate system can pass from its first to its second configuration only when the brake is de-activated.

REFERENCES:
patent: 4615174 (1986-10-01), Nagahara
patent: 4720975 (1988-01-01), Gunter
patent: 5531071 (1996-07-01), Asano
patent: 5709083 (1998-01-01), Sorbel

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