| 摘要 |
PURPOSE:To detect the angle highly accurately by a simple constitution, by providing angle detecting slits, long slits corresponding to the number of cylinders, reference position slits for a specified cylinder, and the like in a rotary disk which is synchronized with an engine. CONSTITUTION:The rotary disk 8 is formed on the shaft of the distributor which is rotated in synchronization with the engine as a unitary body. In said rotary disk 8, the detecting slits 8a... which are arranged at an equal angular interval on the same circumference, the slits 8b... which are arranged at an equal angular interval in correspondence with the number of the cylinders and longer than the slits 8a, a plurality of slits 8b which are in common with said slits 8b and used as the reference position for the specified cylinder, and the like are provided. By a pair of photoelectric pickups, the different types of the slits are detected, and the rotary angle for controlling fuel injection is determined. Therefore, in the simple constitution wherein only one pair of the photoelectric pickups are used, the rotary angle detecting device for the distributor which can detect the angle highly accurately is obtained. |
