Linear EMV actuator using permanent magnet and electromagnet

A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the valve undergoes a soft landing and active control of an amount of opening of the valve. The linear EMV ac...

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Main Authors Han, Dong Chul, Ahn, Hyeong Joon, Chang, Jee Uk, Kwak, Sang Yong
Format Patent
LanguageEnglish
Published 14.08.2007
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Abstract A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the valve undergoes a soft landing and active control of an amount of opening of the valve. The linear EMV actuator includes an upper core and a lower core, an armature, an actuator spring and a valve spring. Also included are a permanent magnet, an upper coil and a lower coil connected to each other in series thereby forming one electromagnet, a displacement sensor, and a position controller.
AbstractList A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the valve undergoes a soft landing and active control of an amount of opening of the valve. The linear EMV actuator includes an upper core and a lower core, an armature, an actuator spring and a valve spring. Also included are a permanent magnet, an upper coil and a lower coil connected to each other in series thereby forming one electromagnet, a displacement sensor, and a position controller.
Author Ahn, Hyeong Joon
Chang, Jee Uk
Han, Dong Chul
Kwak, Sang Yong
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References Yanai (6634327) 20031000
Hara et al. (6216653) 20010400
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Snippet A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve...
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Title Linear EMV actuator using permanent magnet and electromagnet
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