Mono-block control valve with side bypass passage
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United States of America Patent
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-
Dec 24, 1996
Grant Date -
N/A
app pub date -
Jun 30, 1995
filing date -
Sep 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved mono-block control valve having a side bypass passage substituting for a typical center bypass passage is disclosed. The side bypass passage simplifies the passage structure of the valve body into a two-dimensional structure, thereby remarkably reducing the valve body size and improving the space efficiency and cutting down the cost. The left and right return passes are connected together by a connection passage at every section of the valve body. Due to the connections passages, the control valve prevents passage resistance and pressure loss in the return passages and makes both the negative pressures in the right and left actuator ports and the negative pressures in the sections uniform. The control valve thus improves the operational stability and reliability.
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