Harvesters – Motorized harvester – Having fluid-pressure or stored-energy motor
Patent
1986-09-24
1987-11-03
Hirsch, Paul J.
Harvesters
Motorized harvester
Having fluid-pressure or stored-energy motor
56208, 56DIG11, A01D 4302, A01D 6903
Patent
active
047036125
ABSTRACT:
A hydraulic system for unitized raking implements having hydraulically driven left and right rake baskets positionally movable by hydraulic steering cylinders, hydraulic swing cylinders and hydraulic lift cylinders is disclosed wherein all the hydraulically actuated components on the implement can be operatively powered from a single hydraulic circuit from the prime mover. A selector valve divides the flow of fluid coming from the prime mover hydraulic system into first and second loops. The first loop directs hydraulic fluid to the hydraulic motors and lift cylinders in such a manner that whenever the hydraulic motors are operated the hydraulic lift cylinders position the rake baskets into a lowered operating position. The second loop directs hydraulic fluid to the steering and swing cylinders, the flow between which being controlled by a control valve corresponding to each of the rake baskets.
REFERENCES:
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patent: 4343142 (1982-08-01), Allen
patent: 4384443 (1983-05-01), Hoogstrate
patent: 4411070 (1983-10-01), Boyum et al.
Coughran, Jr., Samuel J., "Mow, Mow, Mow your Slope, Gently Down the Green", Hydraulics & Pneumatics, vol. 25, No. 5, May 1972, pp. 106-107.
Vermeer Model R-23 Sales Brochure.
Allen Model 852 Sales Brochure.
Ciamacco Vincent
Hirsch Paul J.
Marquette Darrell F.
Miller Larry W.
New Holland Inc.
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