Load sensing hydraulic system for plow/spreader vehicles

Details Load sensing hydraulic system for plow/spreader vehicles Load sensing hydraulic system for plow/spreader vehicles

E - Fixed Constructions

01

H

E01H 5/04 (2006.01) E01C 19/20 (2006.01) E01H 5/06 (2006.01) F15B 9/04 (2006.01) F15B 9/08 (2006.01)

Patent

CA 2530727

A hydraulic system for operating plow/spreader equipment. The hydraulic system comprises a reservoir for hydraulic fluid, a load sensitive variable displacement pump and a plow on/off valve apparatus having a manifold with a fluid channel and a number of outlet ports. Further one or more on/off valves are coupled to the manifold to control fluid flow to operate components of the plow equipment. A stroke valve is further coupled to the manifold to operate in conjunction with one or more of the on/off valves for providing a load sensing pressure signal. The hydraulic system further includes a load sensing spreader valve for operating the spreader, and may also include a plow load sensing valve apparatus having one or more load sensing valves to provide proportional control to various components of the plow equipment. The hydraulic system further includes an arrangement of shuttle valves to provide the load sensing pump with load sensing pressure signals from the stroke valve, the load sensing spreader valve and the plow load sensing valve apparatus.

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