Patent ID: 8307726
Filing Date: 2012-11-13
Classification: F02N,H01H,H02K,Y10T

Abstract:
1. A starter comprising: a motor operative to generate a rotational force; an output shaft operative to rotate upon receipt of the rotational force of the motor; a pinion gear slidably disposed on the output shaft to be axially movable; an electromagnetic switch having a switch coil forming a first electromagnet to generate a first attraction force when turned on for closing a main contact disposed in a motor energizing circuit of the motor; a solenoid having an excitation coil forming a second electromagnet to generate a second attraction force when turned on for moving the pinion gear toward a ring gear of an engine; and a unitary structure supporting the electromagnetic switch and the solenoid in series on a coaxial relationship; wherein: the switch coil for the electromagnetic switch has an outer diameter smaller than that of the excitation coil of the solenoid; the unitary structure serves as a common magnetic flux path of the excitation coil and the switch coil; and lead wires of the excitation coil are located in an area outside an outer circumferential periphery of the switch coil.