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A diesel engine is a type of internal combustion engine in which combustion occurs as a result of the high temperature reached in compression. This type of engine is very common in industrial, agricultural and heavy transport machinery due to its greater power, hardness and simplicity.
Diesel engines are made up of different elements and parts. Knowing them will help you better understand their operation and maintenance. In this article we will review the main parts of a diesel engine.
The parts of a diesel engine
engine block
The engine block is the main structure on which other parts of the engine are placed. It is made of aluminum or iron and in it we can find the cylinders and the refrigeration and lubrication ducts.
Piston
Crankshaft
Connecting rod
pistons. The pistons are parts located inside the cylinders of the engine block that alternately move from top to bottom, compressing the air-fuel mixture and transmitting to the crankshaft the force resulting from the pressure caused during the combustion process.
Crankshaft. It is an axis that converts the reciprocating movement of a piston into a rotary movement.
Connecting rod. This piece is in charge of connecting the piston with the crankshaft and transmitting the movement. The connecting rods along with the pistons and crankshafts are the parts that make the machine move.
Sump
Oil pump
engine lubrication
Sump. It is anchored under the engine and is responsible for collecting the oil that lubricates the engine, which is falling from the top.
Oil pump. This part is in charge of guaranteeing proper lubrication of the engine and all its parts. It sucks oil from the crankcase to propel it and distribute it through the oil filter to all engine components.
Butt
head gasket
Butt. It is one of the fundamental components in a diesel engine since it deals, among other things, with ensuring compression. It is a metal block that seals the upper part of the cylinders of an engine while serving to house other components, such as the valves or the combustion chamber.
cylinder head gasket Located between the cylinder head and the engine block, the cylinder head gasket is the part in charge of sealing well and compressing the cylinder head to prevent oil leaks in the engine.
valves
Camshaft
Combustion chamber
Combustion
valves. The inlet valves allow air and fuel to pass inside, and the outlet valves expel exhaust gases.
Camshaft. This mechanism is responsible for opening and closing the valves by means of an axis or rotation bar that incorporates blades or sails. It controls that the emission and exhaust valves open and close in a coordinated manner and at the exact moment.
Combustion chamber. Part of the engine where combustion occurs resulting from the mixture of air and fuel.
bearings
injection pump
Fuel injector
Other important pieces
bearings. The motor bearings protect and allow the parts to rotate freely, avoiding friction and heating of the motor.
Injection pump. It serves to increase the pressure of the fuel so that, when it is injected into the engine in spray form through the nozzles, it causes spontaneous ignition inside the combustion chamber.
Fuel injector. The injectors are capable of spraying a certain amount of fuel into the combustion chamber, where it mixes with air.
As you can see, each diesel engine is made up of a long list of parts and elements that, all together, form a perfectly adapted and synchronized gear.
Now you have a more complete vision of what are the parts of a diesel engine. If you are looking for spare parts for any of the parts of your diesel engine, remember that at Comercial Méndez we are official distributors. Take a look at our extensive stock of spare parts for diesel engines.