Proportional electromagnetic valve having amplifier therein
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United States of America Patent
Stats
-
May 29, 1990
Grant Date -
N/A
app pub date -
Jul 19, 1988
filing date -
Jul 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.
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