Starter Motor

The starter motor has a high starting torque output, which can start the engine quickly. Improve the response speed and work efficiency of construction machinery. This is especially important for construction machinery under high loads and harsh working conditions.

The diesel engine starter motor has been strictly designed and tested and has good reliability and durability. It can work normally under a harsh working environment. And can withstand adverse conditions such as high temperature, high humidity, vibration, and dust.

The starter motor can efficiently convert electrical energy into mechanical energy during operation. Minimize energy waste. This meets the needs of environmental protection and sustainable development. It also reduces operating costs and dependence on limited resources.

Here is the starter motor working principle explained in steps.

The motor contains an armature rotating inside a magnetic field. The armature shaft ends in a pinion and, in some types of the starter, a set of gears. When your turn on the ignition key of press the engine starting button, a current flows through the ignition circuit and activates the starter relay. The relay on the other hand, sends power to a part of starter motor called starter solenoid.

The starter motor solenoid acts as a large switch or relay and sends current from the battery directly to the motor. The solenoid also moves a lever, helping to push a pinion gear to mesh with the ring gear on the flywheel or flexplate. These two events happen almost concurrently. The motor then rotates the flywheel, turning the engine over and starting it.

When you release the ignition key, the ignition circuit stops sending current and the starter relay disconnects power to the starter solenoid. With the starter solenoid having no current flowing, it loses its magnetism and releases the plunger.

The plunger returns to its former position, disconnecting the motor circuit and pulling back the pinion drive gear from the flywheel or flex plate. At this time, the engine can run on its own. There are several ways that manufacturers ensure the starter motor engagement and disengagement happens smoothly.