Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1989-06-21
1990-11-06
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
310 15, 73505, H02K 3312, G01P 904
Patent
active
049689096
ABSTRACT:
A compact torque motor providing bi-directional, limited angle reactionless torque to opposed structures. A motor (10, 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 first electromagnetic 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 developed by 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 pole pieces are lightweight, rotational inertia of the motor is very low, and its efficiency relative high.
REFERENCES:
patent: 3312842 (1967-04-01), Heuchling et al.
patent: 3671787 (1972-06-01), Herron
patent: 3828213 (1974-08-01), Yamashita et al.
patent: 4642539 (1987-02-01), Hinds
patent: 4700090 (1987-10-01), Bianchi et al.
Joike Trevor B.
Jones Judson H.
Stephan Steven L.
Sundstrand Data Control Inc.
Yatsko Michael S.
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