Patent ID: 8193882
Filing Date: 2012-06-05
Classification: F02D,F02N,H01F,H01H,H02K,Y10T

Abstract:
1. A starting device for engines comprising: a motor that generates torque; a pinion gear that moves in an axial direction and engages to a ring gear of an engine, and transmits the torque of the motor to the ring gear; a solenoid device having a first coil that forms an electromagnet by energization, and pushes out the pinion gear to the ring gear side via a shift lever that is driven by an attraction power of the first coil; and an electromagnetic switch having a second coil that forms an electromagnet by energization, and opens and closes a main point of contact disposed on a motor circuit by an attraction power of the second coil; wherein, the solenoid device and the electromagnetic switch are arranged integrally in series in an axial direction, while a magnetic plate that forms a part of a magnetic circuit between the first coil and the second coil is shared by the solenoid device and the electromagnetic switch; and a direction of a magnetic flux generated by energization to the first coil that passes along the magnetic plate and a direction of a magnetic flux generated by energization to the second coil that passes along the magnetic plate are opposite directions.