Electromagnetic actuator with non-symmetrical magnetic circuit layout for actuating a gas-reversing valve
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United States of America Patent
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May 16, 2006
Grant Date -
Nov 11, 2004
app pub date -
Apr 19, 2004
filing date -
Apr 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electromagnetic actuator for actuating a gas-reversing valve on a piston internal combustion engine includes two electromagnets. Each electromagnet includes a one yoke body presenting a pole face. The pole faces of the two electromagnets face each other at a distance. Each yoke body has two parallel grooves that are open toward the pole face and form a coil window with a coil disposed in the coil window. An armature is arranged to move back and forth between the pole faces counter to the force of at least one restoring spring. The two electromagnets each have a different load profile.
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