The cylinder head is one of the main components of the diesel engine. The role of the cylinder head of the diesel generator set. The diesel generator set is mainly composed of the diesel engine, synchronous generator, control panel, supporting electrical control equipment and various auxiliary components. Its main role is to close the upper part of the engine body, and form the combustion chamber space with the piston, cylinder liner and other components, as well as to install the fuel injector, intake valve, exhaust valve, rocker arm assembly and other components, To ensure the supply of high-pressure atomized diesel oil to the combustion chamber and the smooth process of intake and exhaust, the cylinder head of the water-cooled diesel engine is also equipped with cooling water and lubricating oil channels.
The cylinder head is installed on the cylinder block, sealing the cylinder from the top and forming the combustion chamber. It often contacts with high temperature and high pressure gas, so it bears great thermal load and mechanical load. The cylinder head of the water-cooled engine is internally provided with a cooling water jacket, and the cooling water hole at the lower end of the cylinder head is communicated with the cooling water hole of the cylinder block. Circulating water is used to cool high temperature parts such as combustion chamber. The cylinder head is also equipped with intake and exhaust valve seats and valve guide holes, which are used to install intake and exhaust valves, as well as intake channels and exhaust channels. The cylinder head of the gasoline generator set is provided with holes for installing spark plugs, while the cylinder head of the diesel generator set is provided with holes for installing fuel injectors. The cylinder head of the overhead camshaft engine is also provided with a camshaft bearing hole for installing the camshaft. The cylinder head is generally made of gray cast iron or alloy cast iron. The aluminum alloy has good thermal conductivity, which is conducive to improving the compression ratio. Therefore, in recent years, aluminum alloy cylinder heads have been used more and more. The cylinder head is a part of the combustion chamber, and the shape of the combustion chamber has a great influence on the work of the engine. Due to the different combustion modes of the gasoline generator set and the diesel generator set, the parts of the cylinder head that make up the combustion chamber differ greatly. The combustion chamber of the gasoline generator set is mainly on the cylinder head, while the combustion chamber of the diesel generator set is mainly in the pit on the top of the piston.
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