What is a car exhaust manifold pad
Automobile exhaust manifold pad is an important part of automobile exhaust system, its main function is sealing and heat insulation. The exhaust manifold gasket is composed of a sealing gasket and a heat shield, and the sealing gasket is composed of an upper sealing metal plate, two layers of heat shield metal plate and the lower sealing metal plate, which has good rigidity and is not easy to bend. The heat shield is a non-metal thermal insulation material, integrated on the exhaust manifold, to ensure the heat insulation effect, effectively reduce the water temperature of the cylinder head water jacket exhaust side, reduce the temperature difference between the intake side and the exhaust side of the cylinder head water jacket, thereby extending the service life of the engine cylinder head .
Construction and function of exhaust manifold gaskets
The exhaust manifold gasket consists of a gasket and a heat shield. The sealing gasket is composed of an upper sealing metal plate, two layers of heat shield metal plate and the lower sealing metal plate, which has excellent rigidity and is not easy to bend. The heat shield is a non-metal insulation material, integrated on the exhaust manifold, to ensure the heat insulation effect, effectively reduce the cylinder head water jacket exhaust side of the water temperature .
Exhaust manifold pad damage
When the exhaust manifold pad is damaged, the following behaviors may occur:
Loud car noise : Because the sealing gasket is partially damaged, resulting in gas leakage, resulting in noise.
Increased smoke in engine compartment : Damaged exhaust manifold gaskets may cause smoke leakage.
incomplete combustion odor : Damaged gaskets may cause incomplete combustion, producing a special odor .
reduced engine performance : Damaged exhaust manifold pads can result in poor intake to the cylinder head, affecting engine performance .
The main functions of automotive exhaust manifold pads include thermal insulation, enhanced sealing and shock absorption and noise reduction . To be specific:
Thermal insulation : the exhaust manifold pad can effectively isolate the heat generated by the exhaust manifold and prevent the heat from being transferred to other components, thus protecting the engine and other mechanical parts from high temperatures .
strengthened seal : the design of gasket can ensure the tightness between the exhaust manifold and the engine, prevent the leakage of exhaust gas, and ensure the normal operation of the exhaust system .
shock absorption and noise reduction : the exhaust manifold pad also has the function of shock absorption and noise reduction, reducing the vibration and noise generated by the exhaust system during the working process, and improving the comfort of the vehicle .
In addition, the exhaust manifold gasket is also resistant to the high temperature gas generated by combustion, ensuring that it will still work in high temperature environment .
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