What is car plunger sleeve?

Automotive plunger sleeve is a mechanical seal used for the connection between the cylinder and the piston of the automotive engine. It is located in the cylinder wall above the piston and acts as a seal for the cylinder and reduces friction. This paper will introduce the structure, function and important role of automobile plunger sleeve in engine.

First, the structure and type of car plunger sleeve. Plunger bushing is usually made of wear-resistant, high-temperature and high-pressure alloy materials. It consists of a cylindrical part with an inner diameter that matches the diameter of the cylinder wall and is coated with a special lubricating coating to reduce friction. According to different designs and engine types, automotive plunger sleeve can be divided into wet plunger sleeve and dry plunger sleeve two types. The wet plunger sleeve is directly in contact with the coolant, which is better in heat dissipation effect; The dry plunger sleeve is isolated from the cylinder wall, and the temperature needs to be reduced by other means of heat dissipation.

Secondly, the function and role of the car plunger sleeve. First, it acts as a sealing cylinder. Due to the high temperature and high pressure generated in the combustion process of the automobile engine, the plunger sleeve can effectively prevent the gas leakage from the combustion chamber to the cylinder wall. This sealing effect can improve the working efficiency of the engine and prevent the waste of energy. Second, the plunger sleeve also reduces friction. Because the piston moves up and down in the cylinder and comes into direct contact with the cylinder wall, friction can lead to energy loss and wear. The lubricating coating of the plunger sleeve can reduce the coefficient of friction, reduce energy loss and wear, and improve the life and performance of the engine.

Finally, the plunger sleeve plays an important role in the engine. As one of the core components of the engine, the plunger sleeve can be said to be the key to the normal operation of the engine. Its sealing and friction characteristics directly affect the combustion efficiency, power output and economy of the engine. If the plunger sleeve fails or is seriously worn, it will lead to a decrease in the capacity of the compressed cylinder, which will affect the combustion of fuel and power output. In addition, the choice and installation quality of the plunger sleeve also have an impact on the heat dissipation performance of the engine. Therefore, when maintaining and maintaining the engine, attention should be paid to checking and replacing the plunger sleeve to ensure its normal operation and improve the reliability and operation efficiency of the engine.

All in all, the plunger sleeve is an important mechanical seal in the engine, which has the role of sealing the cylinder and reducing friction. Its structure and lubrication characteristics directly affect the performance and life of the engine. Understanding and maintaining the plunger sleeve can improve the working efficiency, economy and reliability of the automobile engine, so as to ensure the performance and safety of the vehicle.