Table of Contents
How does an inertia starter works?
Inertia starters work by rotating a pinion and moving it forward through centrifugal force towards the ring-gear. As it continues to spin, the teeth of the pinion lock into the ring-gear and crank the engine. A key advantage of inertia startering is that they automatically disengage once the engine has started.
What is an inertia type starter motor?
An inertia-type starter motor is fitted with a Bendix gear on the shaft from the armature. When the started switch is turned on, the motor rotates rapidly, the shaft turns, and the Bendix gear screws the pinion along a thread until it engages with they flywheel ring gear on the engine.
How does a car’s starting system work?
To make an engine start it must be turned at some speed, so that it sucks fuel and air into the cylinders , and compresses it. The powerful electric starter motor does the turning. Its shaft carries a small pinion ( gear wheel) which engages with a large gear ring around the rim of the engine flywheel .
How does the starter start the engine?
When you turn the ignition switch, the starter motor is energized, and the electromagnet inside the body engages. This pushes out a rod to which the pinion gear is attached. The gear meets the flywheel, and the starter turns. This spins the engine over, sucking in air (as well as fuel).
What are the three general types of inertia starter?
There are three general types of inertia starters: hand, electric, and combination hand and electric.
What is the difference between a pre-engaged and an inertia starter motor?
The key difference between inertia and pre-engaged starting is that the pinion on a pre-engaged starter motor fully engages with the ring-gear before rotating at high-speed. With inertia starters, the sudden impulse of the pinion as it begins to rotate causes the gear to move forward along a helix shaft.
What are the types of starter motor?
Types of Magnetic Motor Starters
- Direct-On-Line Starter. The direct-on-line starter is the simplest form of motor starter, other than a manual starter.
- Rotor Resistance Starter.
- Stator Resistance Starter.
- Auto Transformer Starter.
- Star Delta Starter.
What are the parts of starting system of an engine?
The starter motor is an electric motor that rotates your engine in order to allow the spark and fuel injection systems to begin the engine’s operation under its own power. The starter has gears which mesh with a large flywheel gear on the back side of the engine, which turns the central crank shaft.
What is combination hand and electric inertia starter?
A starter in a reciprocating engine that allows the starter flywheel to build up RPM either by hand cranking or electric power.
How does an inertia starter work?
When an inertia starter spins, the pinion moves along the thread of the motor shaft and engages with the flywheel gear ring. It then reaches a stop at the end of the thread, begins to turn with the shaft and so turns the engine. Once the engine starts, it spins the pinion faster than its own starter-motor shaft.
How does an air starter motor work?
Air starter motors are a compact, reliable and powerful method of starting an engine. Inertia starters work by rotating a pinion and moving it forward through centrifugal force towards the ring-gear. As it continues to spin, the teeth of the pinion lock into the ring-gear and crank the engine.
What are the disadvantages of inertia engaged starter motors?
Starter motors rarely give trouble: one of the most common with the inertia engaged type is the jamming of the pinion in the fully meshed position. The starter motor is unable to turn because the torque required is too great – it has no opportunity to spin up from rest, as in normal starting.
How does the inertia system work on a flywheel?
Inertia system. The shaft has straight splines rather than a Bendix thread, so that the pinion always turns with it. The pinion is brought into contact with the toothed ring on the flywheel by a sliding fork. The fork is moved by a solenoid, which has two sets of contacts that close one after the other.