Valve device and hydraulic system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 26, 2019
Grant Date -
Aug 11, 2016
app pub date -
Sep 5, 2014
filing date -
Sep 21, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A valve device (200) includes a tank pressure port (218), a first pressure port (212), a second pressure port (214), and a pressure shut-off valve (224). The valve is switched between the individual ports (212, 214, 218), and has two valve components (226, 228). Upon reaching a predefinable pressure cut-off value, the first pressure port (212) can be connected to the tank pressure port (218) by the first valve component (226). In the event of the fluid pressure being higher at the second pressure port (214) than at the first pressure port (212), the second pressure port (214) can be separated from the first pressure port (212) by the second valve component (228). Both valve components (226, 228) are combined to form a tradable structural unit and are integrated in a common valve housing (230), preferably making direct contact. A hydraulic system has this valve device.
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