Nowadays many people owns a car or want to own a car, but question is what do you know about cars. So this time we would like to talk about car engine the most important part of a car.
What is auto engine & why we say it’s the most important part or system?
The engine is the heart of your car. It is a complex machine built to convert heat from burning gas into the force that turns the road wheels. The chain of reactions which achieve that objective is set in motion by a spark , which ignites a mixture of petrol vapour and compressed air inside a momentarily sealed cylinder and causes it to burn rapidly. That is why the machine is called an internal combustion engine . As the mixture burns it expands, providing power to drive the car.
To withstand its heavy workload, the engine must be a robust structure. It consists of two basic parts: the lower, heavier section is the cylinder block, a casing for the engine's main moving parts; the detachable upper cover is the cylinder head .
The cylinder head contains valve-controlled passages through which the air and fuel mixture enters the cylinders, and others through which the gases produced by their combustion are expelled.
The block houses the crankshaft , which converts the reciprocating motion of the pistons into rotary motion at the crankshaft. Often the block also houses the camshaft , which operates mechanisms that open and close the valves in the cylinder head. Sometimes the camshaft is in the head or mounted above it.
What are the main spare parts in the engine ?
Engine block:The block is the main part of the engine. All other parts of the motor are essentially bolted to it. Inside the block is where the magic happens, such as combustion.
Pistons:Pistons pump up and down as the spark plugs fire and the pistons compress the air/fuel mix. This reciprocating energy is converted to rotary motion and transferred to the tires by the transmission, via the driveshaft, to make them spin.
Cylinder head:The cylinder head is attached to the top of the block in order to seal the area to prevent the loss of gases. The spark plugs, valves and other parts are fitted to it.
Crankshaft:The camshaft opens and closes the valves in perfect timing with the rest of the parts.
Camshaft:The camshaft has pear-shaped lobes which actuate the valves - usually one inlet and one exhaust valve for each cylinder.
Oil pan: The oil pan, also known as the oil sump, is attached to the bottom of the engine and stores all the oil used in the lubrication of the engine.
Post time: Aug-10-2021