Auxiliary drive system for combines

Details Auxiliary drive system for combines Auxiliary drive system for combines

1981-04-24

1983-08-02

Peters, Jr., Joseph F.

Motor vehicles

Having four wheels driven

Including pump and fluid motor, or generator and electric...

56 102, 60420, 60452, 172 2, 180306, 180307, 180308, B60K 1734, F16H 3946

Patent

active

043960871

ABSTRACT:
A self propelled combine having forward main drive wheels and rear steerable wheels. A hydrostatic drive including a variable displacement motor is arranged to drive the main drive wheels. An electronic-hydraulic control system is automatically operable to drive the rear steerable wheels in response to sensing preselected pressure and combine attitude values while automatically varying the displacement of the hydrostatic drive motor to minimize combine speed changes and to provide torque as required under varying loads imposed by hilly terrain or increasing amounts of grain collected in the grain tank of the combine.

REFERENCES:
patent: 3053043 (1962-09-01), Knowler
patent: 3339660 (1967-09-01), Budzich
patent: 3354978 (1967-11-01), Budzich
patent: 3736632 (1973-06-01), Barrow
patent: 3841423 (1974-10-01), Holtkamp et al.
patent: 3894606 (1975-07-01), Hunck et al.
patent: 3900075 (1975-08-01), Chichester et al.
patent: 3902566 (1975-09-01), Bird
patent: 3916625 (1975-11-01), Holtkamp
patent: 3918546 (1975-11-01), Chichester et al.
patent: 4102425 (1978-07-01), Marsden et al.
patent: 4236595 (1980-12-01), Beck et al.

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