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US 9,435,358 B2Granted
Hydraulic directional control valve
AssigneeDeere & Company
InventorsAndreas Remmelmann, Christian Brueser
Life of this patent
Estimating the term…
Abstract
A hydraulic directional control valve for activating a hydraulic load, comprising a housing with a pump connection for connecting to a pressure source, a tank connection for connecting to a hydraulic fluid reservoir and a first and second working connection for connecting to the hydraulic load, and a first and a second valve slide, which are held in the housing so as to be linearly movable in a displacement direction.
Claims3
A hydraulic directional control valve for activating a hydraulic load, comprising:
- a housing having a pump connection for connecting to a pressure source, a tank connection for connecting to a hydraulic reservoir, and a first and a second working connection for connecting to the hydraulic load;
- a first and a second valve slide, slidably received by the housing, the valve slides being movable linearly in a displacement direction in the housing in order to activate the pump connection, the tank connection and the working connection via control edges arranged on the valve slides;
- and
- an actuating member operatively connected with the first and the second valve slides in order to press the valve slide in the displacement direction relative to the housing, the actuating member having a control cam arrangement for acting upon the valve slides;
- wherein the control cam arrangement has a first and a second cam contour acting respectively on the first and the second valve slide, the first and the second cam contours displaceable about a control axis arranged perpendicular to the displacement direction;
- and
- wherein a relative pivot angle of the first and second cam contours relative to one another about the control axis is adjustable.
4 more elements
Dependencies are inferred from the claim text.