Starter motor working principle

An explanation of the principles of starter motors in engine driven vehicles. Starter operation (Automotive). The original starter in My Ford Explorer is years. Learn how a starter motor works.

This guide to how a vehicle starting system works will get your car starter motor turning over again. In the case of very large engines, the starter can even be another internal- combustion .

However, getting it to crank is actually much more involved than you might think. It requires a flow of air into the engine, which can only be achieved by creating suction (the engine does this when it turns over). The function of the starter motor is: to drive the flywheel during start-up. A number of systems are assembled to form the starter motor (Fig. 14):.

Electric activation system (relay). Mechanical activation system (engagement mechanism). How a car starting system works : starting system diagram, starter motor , starter solenoi neutral safety switch, common starting system problems. When current passes through coil of solenoi it attracts an iron rod.

The movement of the rod closes two heavy contacts, completing the circuit from the battery to the starter.

The powerful starter motor starts rotating. Its shaft carries a small pinion which engages with a large gear ring around the rim of the engine flywheel. Now let us have a brief recall of the need for having a starter for any motor. An Induction motor has the ability to self start owing to the interaction between the rotating magnetic field flux and the rotor winding flux, causing a high rotor current as torque is increased. As a result the stator draws high current and by the time the . How does an air starter use air to start an engine?

The answer to this question lies in the type of motor an air starter is equipped with. There are two types of motors that dominate the industry: vane motors and turbine motors. These two types of motors work on similar principles but . A brief explanation of how your car starter works and how starters have changed over the years. When a starter motor starts to turn the engine over, its pistons start to.

In other words, when the engine is stationary, it will take the most power to start it cranking, and then as the cranking rpm . The motor converts electrical energy supplied from the battery into mechanical power. This is achieved by using an electromagnetic principle similar to that employed for the generation of electrical energy (refer to section ). Although the principles employed are the same . Now the question is why these types of DC motors require the assistance of the starter in the first case. The only explanation to that is given by the presence of back emf Eb, which plays a critical role in governing the operation of the motor.

The back emf, develops as the motor armature starts to rotate in presence of the . When the voltage falls below a certain value or when the supply fails or disrupted during the operation of the motor , the coil C is de- energized.

Hence, the motor is disconnected from the supplyOverload Protection. The motor is overloade one or all the overload coils (O.L.C) are .