Hydrostatic travelling mechanism for track-laying vehicles

Details Hydrostatic travelling mechanism for track-laying vehicles Hydrostatic travelling mechanism for track-laying vehicles

1991-05-09

1993-03-09

Marmor, Charles A.

Motor vehicles

Steering by driving

Combined with manual steering

60426, 180307, 180 648, B62D 1104, B60K 1700, F16D 3102

Patent

active

051919508

ABSTRACT:
A track-laying vehicle has two tracks, each with a hydrostatic drive unit, where at least one drive motor 1, 2 adjustable in working volume is provided in each drive unit and to which at least one pressure medium supply line 3, 4, 5, 6 connected to a hydrostatic pump leads and which has a working volume adjusting device 9, 11, 10, 12 that can be influenced by a signal dependent on the operating pressure. To avoid unintentional changes in direction of the track-laying vehicle in the case of different resistances to the tracks, it is proposed to connect the pressure medium supply lines 3, 4, 5, 6 of all the drive motors 1, 2 to a shuttle valve circuit 32, 33, 34 which determines the highest of the operating pressures of the hydrostatic drive unit and empties in a signal line 19 that is connected to the control elements of the working volume adjusting devices 9, 11, 10, 12 of all the drive motors 1, 2.

REFERENCES:
patent: 3807174 (1974-04-01), Wagenseil et al.
patent: 4722186 (1988-02-01), Louis et al.
patent: 5005358 (1991-04-01), Hirata et al.

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