Servo Valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 8, 2011
app pub date -
Sep 3, 2009
filing date -
Sep 3, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a servo valve for a hydraulic vehicle steering system, having a valve sleeve and an input shaft which is arranged within the valve sleeve and can be rotated relative to the valve sleeve about a common axis, the valve sleeve and the input shaft each having axially oriented control grooves positioned at least partially opposite each other, each control groove of the valve sleeve and of the input shaft being connected with two adjacent control grooves of the input shaft and of the valve sleeve, respectively, via a respective control gap, a first control gap being formed between a pressure port and a working port of the servo valve associated with the pressure port, and a second control gap being formed between a return port associated with the pressure port and the working port of the servo valve, the second control gap having a smaller flow cross-section than the first control gap in a center position of the valve.
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Family
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Cited Art Landscape
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