Title:
ROTARY ACTUATOR
Document Type and Number:
Japanese Patent JPS5674076
Kind Code:
A
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.
Inventors:
HARU JII MEIYAA
Application Number:
JP15151280A
Publication Date:
June 19, 1981
Filing Date:
October 30, 1980
Export Citation:
Assignee:
AHLGREN MEYER CONTROLS
International Classes:
H01F7/13; H02K33/00; H01F7/14; (IPC1-7): H02K33/12
Domestic Patent References:
| JP53050844B | ||||
| JPS3915306Y1 | ||||
| JPS4891508A | 1973-11-28 |