Longli cylinder head teaches you how to understand the internal structure of the engine Modern automobile engine body group is mainly composed of body, cylinder head, cylinder head cover, cylinder liner, main bearing cover and oil pan. The body group is the support of the engine, and it is the assembly base of the crank connecting rod mechanism, the valve mechanism and the main parts of the engine system. The cylinder head is used to seal the top of the cylinder and, together with the piston top and cylinder wall, forms the combustion chamber. The cylinder head is used to seal the cylinder and form the combustion chamber. The cylinder head is cast with water jacket, water inlet hole, water outlet hole, spark plug hole, bolt hole, combustion chamber, etc. The cylinder block is the main body of the engine, which connects each cylinder and the crankcase into one, and is the supporting skeleton for installing pistons, crankshafts and other parts and accessories. The cylinder gasket is located between the cylinder head and the cylinder block, and its function is to fill the microscopic pores between the cylinder head and the cylinder head, to ensure good sealing at the joint surface, and then to ensure the sealing of the combustion chamber to prevent air leakage and water jacket water leakage. The piston linkage is the transmission part of the engine, which transfers the pressure of the combustion gas to the crankshaft, causing the crankshaft to rotate and output power. Piston connecting rod group is mainly composed of piston, piston ring, piston pin and connecting rod. The main function of the piston is to bear the pressure of the combustion gas, and pass this force to the connecting rod through the piston pin to promote the rotation of the crankshaft, in addition, the top of the piston and the cylinder head and the cylinder wall together form the combustion chamber. Piston is the most severe working conditions in the engine parts, acting on the piston air force and reciprocating inertia force. Connecting rod group includes connecting rod body, connecting rod cover, connecting rod bolt and connecting rod bearing and other parts. The function of the connecting rod is to transmit the force borne by the piston to the crankshaft, and to convert the reciprocating motion of the piston into the rotating motion of the crankshaft. The small head of the connecting rod is connected with the piston pin and does reciprocating movement with the piston; The big head of the connecting rod is connected with the crank pin and rotates with the crankshaft, so the connecting rod makes complex plane motion when the engine is working. The crankshaft flywheel group includes a crankshaft, a flywheel, a torsional shock absorber and a balance shaft. The function of the crankshaft flywheel group is to change the reciprocating movement of the piston into the rotating movement of the crankshaft, and output torque for the driving of the car and other organs that need power. At the same time, it also stores energy to overcome the resistance of the non-work stroke and make the engine run smoothly. Longli Cylinder cover Fugou County Longli cylinder cover Co., LTD