H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/56
H02K 33/12 (2006.01) H01F 7/14 (2006.01) H02K 26/00 (2006.01)
Patent
CA 2012856
COMPACT BI-DIRECTIONAL TORQUE MOTOR Abstract of the Disclosure A compact torque motor providing bi-directional, limited angle reactionless torque to opposed structures. A motor (11), 150) includes an X-shaped core (12),and first and second pole pieces (14 and 16), which are disposed at opposite sides of the core. Two opposed legs on the X-shaped core (12) comprise a first core section (18), which is transverse to a similar second core section (20). A firstelectromagnetic coil (22) is formed on the first core section and a second electromagnetic coil (24) on the second core section. When the first and second electromagnetic coils are alternately energized. tabs (38, 40, 44, and 46) disposed approximate the ends of the first and second pole pieces are attracted to the resulting magnetic poles (26 and 28, 30 and 32), causing the pole pieces to counter-rotate back and forth about a central axis (48). Magnetic flux developedby the first and second electromagnetic coils is conveyed through the tabs and the first and second pole pieces between the opposite magnetic poles. Since the polepieces are lightweight, rotational inertia of the motor is very low, and its efficiency relative high.
Hulsing Rand H. II
Riches Mckenzie & Herbert Llp
Sundstrand Data Control Inc.
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