Engine Parts Classification
RELEASE TIME :
2021-10-21 13:12
The engine is the heart of a car. I believe this understanding should apply to many friends. Although the momentum of new energy electric vehicles is in full swing, it is subject to some factors that have not broken through in key technologies and the infrastructure is not perfect. For traditional For fuel vehicles, the engine is indeed a key part, but for many friends who are not engaged in the automotive field, or even engaged in the automotive field but not in the engine field, the engine is still a relatively complicated thing.
cylinder head
The cylinder head is also equipped with intake and exhaust valve seats, valve guide holes for installing intake and exhaust valves, as well as intake passages and exhaust passages. The cylinder head of the gasoline engine is processed with holes for installing spark plugs, while the cylinder head of diesel engines is processed with holes for installing fuel injectors. Camshaft bearing holes are also processed on the cylinder head of the overhead camshaft engine to install the camshaft.
The cylinder head is generally made of gray cast iron or alloy cast iron. Aluminum alloy has good thermal conductivity, which is beneficial to improve the compression ratio.
The cylinder head is an integral part of the combustion chamber. The shape of the combustion chamber has a great influence on the work of the engine. Because the combustion methods of gasoline engines and diesel engines are different, the parts of the cylinder head that make up the combustion chamber are quite different. The combustion chamber of a gasoline engine is mainly on the cylinder head, while that of a diesel engine is mainly in the pit on the top of the piston.
engine block
Engine block Modern automobile engine block is mainly composed of cylinder block, cylinder head, cylinder head cover, cylinder liner, main bearing cap and oil pan.
The body group is the bracket of the engine, and is the assembly base of the crank connecting rod mechanism, the gas distribution mechanism and the main parts of the engine systems. The cylinder head is used to close the top of the cylinder and forms the combustion chamber together with the piston top and the cylinder wall. In addition, the water jacket, oil passage and oil pan in the cylinder head and body are the components of the cooling system and lubrication system respectively.
oil pan
The oil pan is located in the lower part of the engine: it is removable and seals the crankcase as a housing for the oil sump. The oil pan is the lower half of the crankcase, also known as the lower crankcase.
Its main function is to close the crankcase as the shell of the oil storage tank, prevent impurities from entering, collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, dissipate part of the heat, and prevent the lubricating oil from oxidizing.
Engine parts are classified into three categories, but there are many parts when subdivided, so daily maintenance is very important. Usually we also need to check the location of common faulty parts such as air filter, throttle valve sludge, and carbon deposits in fuel injection nozzles.
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