Pilot operated servo valve
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United States of America Patent
Stats
-
Aug 29, 1995
Grant Date -
N/A
app pub date -
May 24, 1994
filing date -
May 27, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pilot-operated servo valve design for efficient mounting in a control block has at least three main-stream ports. An opening into a control sleeve for a first main-stream port is disposed opposite an end surface of a main control piston. The main control piston has a pressure-equalizing surface disposed in a pressure-equalizing chamber, which is fluidically coupled by a pressure-equalizing duct in the main control piston to the first main-stream port. A return spring urges the main control piston toward a first axial end stop to clearly define a safety position. The valve exhibits good dynamic properties.
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Family
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Cited Art Landscape
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