What are the piston assemblies of the car
The automobile piston assembly mainly includes the following parts: piston, piston ring, piston pin, connecting rod and connecting rod bearing bush. These components work together to ensure the proper operation of the engine.
The piston is a part of the combustion chamber, usually has several ring grooves for mounting the piston ring, its main role is to guide the reciprocating motion in the cylinder and withstand side pressure .
The piston ring is installed on the piston and plays a sealing role. It is usually composed of a gas ring and an oil ring to prevent high temperature and high pressure gas from entering the crankcase and prevent oil from entering the combustion chamber .
The piston pin connects the piston and the connecting rod small head. It has two matching modes: full floating and half floating. Its function is to transfer the piston thrust to the connecting rod .
Connecting rod connecting piston and crankshaft, divided into big head and small head, small head connecting piston, big head connecting crankshaft, its role is to convert the reciprocating movement of the piston into the rotating movement of the crankshaft .
The connecting rod bearing bush is installed on the big end of the connecting rod as a lubricating part to reduce the friction between the connecting rod and the crankshaft and protect the engine .
piston assembly is an important component in engine, consisting of a number of parts, including piston, piston ring, piston pin, connecting rod and connecting rod bearing bush. The main function of the piston assembly is to convert chemical energy into mechanical energy, by pushing the mixture of high temperature and high pressure gas into the cylinder, so as to push the crankshaft to rotate and make the engine run.
Specific components and their functions
piston : A key component of the combustion chamber, the piston pushes a mixture of high temperature and pressure gases into the cylinder to turn the crankshaft and make the engine run.
piston ring : used to seal the cylinder, prevent gas leakage, and scrape the oil off the cylinder wall to keep the cylinder wall lubricated.
piston pin : Connects piston and connecting rod, transmits force and motion.
connecting rod : converts the reciprocating motion of the piston into the rotating motion of the crankshaft.
connecting rod bearing bush : The shaft that supports the connecting rod to reduce friction and wear.
Special design - piston assembly with active lubrication function
The utility model relates to a piston assembly with active lubrication function, which comprises a plurality of spring sheets and tooth ring seats arranged at the bottom of a piston. When working, the spring plate and the tooth ring seat cooperate to rotate, and bring the grease falling naturally to the lower part of the brake cylinder to the upper part of the brake cylinder, so as to realize the circulation of the brake cylinder grease in the brake cylinder and achieve the role of active lubrication.
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