Structural Components Of Gasoline Engine

1. Airframe: It is the assembly base for all parts of the engine. It includes the cylinder head, cylinder block, and lower crankcase (oil pan). The cylinder head and the inner wall of the cylinder block together form part of the combustion chamber. Many parts of the body are components of other systems.
2. Crank connecting rod mechanism: It is the mechanism by which the engine generates and transmits power. It converts the linear reciprocating motion of the piston into the rotational motion of the crankshaft to output power. It includes piston, piston pin, connecting rod, crankshaft with flywheel and cylinder block, etc. 3. Valve distribution mechanism: including intake valve, exhaust valve, valve lifter, camshaft and camshaft timing gear (driven by the crankshaft timing gear), etc. Its function is to charge the combustible mixture into the cylinder in time and discharge the exhaust gas from the cylinder in time.
4. Fuel supply system: The fuel supply system of a gasoline engine includes a gasoline tank, gasoline pump, gasoline filter, air filter, carburetor, intake pipe, exhaust pipe, exhaust muffler, etc. Its function is to mix gasoline and air into a suitable combustible mixture, supply it to the cylinder for combustion, and discharge the exhaust gas generated by combustion out of the engine.
5. Cooling system: mainly includes water pump, radiator, fan, water distribution pipe, cylinder block and water jacket in the cylinder head. Its function is to dissipate the heat of high-heat parts into the atmosphere to ensure the normal operation of the engine.
6. Lubrication system: including oil pump, pressure limiting valve, lubricating oil passage, filter collector, oil filter and oil radiator, etc. Its function is to supply lubricating oil to the friction parts to reduce the friction resistance between them, reduce the wear of the machine parts, partially cool the friction parts, and clean the friction surfaces.
7. Starting system: including the engine starting mechanism and its ancillary devices.