Q:

How does an electric starter motor work?

A:

Quick Answer

An electric starter motor works by generating a heavy electric current at high speeds to turn and start an engine. The starter motor is equipped with a large electric switch that turns on and then off automatically in a short period of time. The electric switch is made to withstand high currents from a car battery and combines with a solenoid valve and electromagnet to start the engine.

Know More

Full Answer

The electromagnet is essential to complete the electric circuit, which then draws an iron rod to connect the car battery and the engine starter. This iron rod is fitted with a return spring so that the connection between the starter motor and the engine is not longer than it has to be. If an engine and a starter motor are connected for too long, the excessive spinning from the engine may damage the starter motor.

The electric starter motor is essential in starting up a modern engine, as it needs to be turned at high speeds. Once the engine has started turning, it can begin operation by filling the cylinders with air and fuel and then compressing it. In cars where the engine is mounted at the front, the starter motor can be found near the back of the engine, mounted low.

Learn more about Engine
Sources:

Related Questions

  • Q:

    What does the Sea Foam motor treatment do for an engine?

    A:

    Sea Foam Motor Treatment cleans, lubricates, stabilizes and controls moisture in the components of the oil and fuel systems of a motor. It does not harm gaskets, seals or other parts of a motor.

    Full Answer >
    Filed Under:
  • Q:

    How does a car engine work?

    A:

    As the piston in an engine moves down, a mixture of fuel and air gets drawn into the cylinder, which causes compression. This compression is ignited by the spark plugs, causing the exhaust valve to open to allow the burned fuel mixture to be sent to the exhaust system. An internal combustion engine needs a gasoline-to-air mixture of around 14.7 parts air to one part gasoline (by weight) in order to run efficiently.

    Full Answer >
    Filed Under:
  • Q:

    How does a Rotax engine work?

    A:

    Rotax engines work by maintaining complete control of the airflow into an engine and keeping the air in without any airflow restrictions, according to Rotaxdisk.com. They have a rotary valve that rotates mechanically in a circular motion, which maintains an efficient intake air control.

    Full Answer >
    Filed Under:
  • Q:

    How does a diesel engine work?

    A:

    A diesel engine is powered by extreme air pressure that ignites the fuel in the cylinders to create internal combustion. This is why diesel vehicles require drivers to wait several seconds after attempting to start the ignition. The waiting period gives the air pressure time to accumulate in the cylinders.

    Full Answer >
    Filed Under:

Explore