Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1979-11-05
1982-03-23
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335181, H01F 714
Patent
active
043215718
ABSTRACT:
A rotary actuator is disclosed useful in controlling throttle settings on internal combustion engines. The angular displacement of the actuator shaft is a function of the current applied to the actuator. In the disclosed embodiment the relationship between current and angular displacement has three distinct regions: increasing displacement, linear displacement and decreasing displacement with respect to applied current. These regions are matched to the engine characteristics to produce a desired response from the engine. The actuator consists of a rotor biased by a coil spring to a first position and displaceable to a plurality of intermediate positions by magnetic actuation from pole pieces associated with current carrying coils. The arrangement and configuration of the rotor and pole pieces produce the desired three region response characteristic.
REFERENCES:
patent: 3201661 (1965-08-01), Koutnik
patent: 3221191 (1965-11-01), Cuches et al.
patent: 3278875 (1966-10-01), McDonough
patent: 3435394 (1969-03-01), Egger
patent: 3694782 (1972-09-01), Ray
Harris George
Precision Governors, Inc.
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