Electric actuator

Abstract

Abstract PURPOSE:To reduce failures in a simple structure by providing a rotatable member with respect to a housing and a fixed rotation-blocking means. CONSTITUTION:When an automobile which has been running at a constant speed comes to an upward slope, the speed is decreased from the predetermined speed. When a pinion gear 27 which is provided on the output side of a motor 11 is rotated with an electromagnetic coil 46 being conducted, a flat gear 28 and a large driving gear 30 are rotated. When the gear 30 is rotated, a planetary gear 33 (differential gear), whose rotating shaft is a shaft 32 which is fixed to the said gear 30, rotates and at the same time revolves around a large differential gear 36 on the output side and a large differential gear 37 on the clutch side. In this case, since the rotation of a clutch plate 40 is stopped by the acceleration of an electromagnetic clutch 12 and the gear 37 does not rotate, the gear 36 rotates differentially with respect to the gear 37, thereby an output rotary shaft 17 is rotated. A throttle valve is driven via an output arm of an electric actuator 7, the speed of the automobile becomes the desired value. In this method, the failures are reduced.

Inventors

• 👤 Takeshi Matsui
• 👤 Koji Idogaki

Bibliographic Details