Several efforts have been made to improve the performance and service life of a piston in a heavy-duty diesel engine. Therefore, it is necessary to optimize the geometric structure of the piston. This will be adjusted based on the maximum temperature and maximum clutch stress.
To begin with, an engineer must understand the thermal field boundary conditions and calculated stresses. These include heat generated by combustion in the cylinder, heat due to friction, and heat transferred to the cooling system.
As science and technology become more sophisticated, the power density of most diesel engines will continue to increase. This factor will actually result in increased thermal loads. In addition, mechanical loads are exerted on the high-temperature components in the engine cylinder, especially the piston.
Prolonged operation under such conditions can cause damage. Damage can be caused due to interior fatigue of the piston and even lead to failure. creep. The combined effect of fatigue and creep will shorten the service life of the piston. And also other high temperature components and seriously affect the reliability of the whole engine.
When the oxidation process occurs in the cylinder, it can provide certain boundary conditions. This is the process of calculating the thermal stress area, and also the mechanical thermal coupling stress of the piston.
Inside the engine cylinder, there is energy bound in the fuel. The energy will then change into heat energy with pressure during the expansion process. The value of heat and pressure will increase dramatically in a short period of time.
A Piston is one of the moving parts in A combustion chamber. That is a chamber where fuel and then air are ignited to produce energy. A combustion chamber serves to convert some of this released energy into mechanical work.
As an engineer, you should know the basic structure of a piston. It is shaped like a cavity, closed on one side with piston components with ring belt, piston pin boss, and skirt. The crown on the piston will transmit the compression force resulting from oxidation. This oxidation process is a mixture of air and fuel through the piston pin, and connecting rod, to the crankshaft.
