MOVABLE MAGNET ACTUATOR VALVE WITH A POLE PIECE
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United States of America Patent
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Issued Date -
May 18, 2017
app pub date -
Jul 10, 2015
filing date -
Jul 14, 2014
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Abstract
A movable magnet actuator valve (100-1800) includes a valve body (110) comprised of a first fluid port (112) and a second fluid port (114-1814), an orifice (118-1818) that fluidly couples the first fluid port (112-1812) and the second fluid port (114-1814), a coil assembly (130-1830) coupled to the valve body (110) and adapted to carry a current that forms a current induced magnetic field. The movable magnet actuator valve (100-1800) also includes a magnet assembly (140-1840) disposed in the coil assembly (130-1830) and adapted to move linearly in the coil assembly (130-1830) to selectively press against the orifice (118-1818), and a pole piece (150-1850) adapted to form a pole force (Fo) on the magnet assembly (140-1840).
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