Piston pin boss for diesel engine

Abstract

The invention relates to a piston pin boss for a diesel engine. The piston pin boss is connected with the outer side of a piston pin; and an oil hole is formed in the piston pin boss connected with the piston pin. The piston pin boss for the diesel engine has the benefits as follows: the lubrication between the piston pin and the piston pin boss is better, and the abrasion of the piston pin is little.

Description

Technical field [0001] The invention relates to a piston pin seat for a diesel engine. Background technique [0002] The piston pin and the pin seat form a pair of friction pairs. The long-term high-speed operation of the diesel engine causes it to undergo periodic alternating mechanical and thermal loads. At the same time, the gas pressure on the piston crown will be transmitted to the connecting rod through the pin seat and the piston pin. , Make the piston pin and the pin seat under long-term working conditions of high specific pressure, difficult lubrication, and accelerated wear. Therefore, the frequent accidents of piston pin damage directly affect the reliability and durability of the diesel engine. [0003] Due to the increase in the speed of the piston assembly, the mechanical load and thermal load are correspondingly increased, and the tensile and compressive stresses borne by the piston pin also increase, resulting in an excessively fast piston pin wear rate. Summary of...

AI Technical Summary

Problems solved by technology

[0002] The piston pin and the pin seat form a pair of friction pairs. The long-term high-speed operation of the diesel engine makes it subject to periodic alternating mechanical loads and thermal loads. At the same time, the gas pressure on the piston top will be transmitted to the connecting rod through the pin seat and the piston pin. , so that the piston pin and pin seat are under the working conditions of high specific pressure, difficult lubrication, and accelerated wear for a long time. Therefore, frequent damage accidents of the piston pin directly affect the reliability and durability of the diesel engine

[0003] As the speed of the piston assembly increases, the mechanical load and thermal load also increase accordingly, and the tensile and compressive stresses on the piston pin also increase accordingly, resulting in excessive wear of the piston pin.

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