MOTOR POPPET VALVE AND AN EGR DEVICE FOR AN INTERNAL COMBUSTION ENGINE USING THE SAME
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United States of America Patent
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Issued Date -
Sep 17, 2009
app pub date -
Dec 2, 2005
filing date -
Dec 7, 2004
priority date (Note) -
Abandoned
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Abstract
Motor control means of a motor poppet valve has initial motor torque setting means for setting the initial motor torque of an electric motor so that the initial motor torque equals a torque corresponding to a force biasing a valve element of a poppet-valve body toward a valve seat or a proximate value, and drives the electric motor so as to obtain the initial motor torque when driving the electric motor to detach the valve element from the valve seat.
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