Cummins generator is mainly composed of body components and crank linkage mechanism, air distribution mechanism and air intake and exhaust system, fuel supply system, lubrication system, cooling system, starting device and other mechanisms and systems.
Engine body: it is the frame of Cummins generator, which supports and installs other components, including cylinder block, cylinder liner, cylinder head, cylinder gasket, oil pan, flywheel housing, timing gear housing, front and rear feet.
Crank connecting rod mechanism: it is the main moving part of Cummins generator. It can transfer the energy generated by fuel combustion into mechanical energy through the piston, piston pin, connecting rod, crankshaft and flywheel. Including crankshaft, connecting rod, piston, piston pin, piston pin circlip, piston pin bushing, piston ring, main bearing, connecting rod bushing, thrust bearing, crankshaft front and rear oil seals, flywheel, shock absorber, etc.
Valve distribution mechanism and intake/exhaust system: The valve distribution mechanism is composed of valve group (intake valve, exhaust valve, valve guide, valve seat and valve spring, etc.) and transmission group (tappet, tappet, rocker arm, rocker shaft, camshaft and timing gear, etc.). The intake/exhaust system is composed of air filter, intake pipe, exhaust pipe and muffler. The role of the valve distribution mechanism and the intake/exhaust system is to timely open and close the intake/exhaust system according to certain requirements The exhaust valve is used to exhaust the waste gas in the cylinder and absorb fresh air, so as to ensure the smooth air exchange process of Cummins generator.
Fuel supply system: the function of Cummins generator fuel supply system is to inject a certain amount of diesel into the combustion chamber at a certain pressure within a certain time to mix with air, so that combustion can do work. It is mainly composed of diesel tank, fuel pump, diesel filter, fuel injection pump (high-pressure fuel pump), fuel injector, governor, etc.
Lubrication system: the function of the lubrication system is to send lubricating oil to the friction surfaces of moving parts of Cummins generator, which plays the role of friction reduction, cooling, purification, sealing and rust prevention, so as to reduce friction resistance and wear, and take away the heat generated by friction, thus ensuring the normal operation of Cummins generator. It is mainly composed of oil pump, oil filter, oil radiator, various valves and lubricating oil passages.
Cooling system: the function of the cooling system is to transfer the heat from the heated parts of Cummins generator, so as to keep the Cummins generator working at the most appropriate temperature, and to obtain good economy, power and durability. The cooling system is divided into water cooling and air cooling. Most Cummins generators use water cooling system, which uses water as the cooling medium. A few Cummins generators also use air cooling system. Air cooling, also known as air cooling, uses air as the cooling medium to transfer the heat from the heating parts of Cummins generator. This cooling mode is composed of fan and air guide cover. In order to increase the heat dissipation area, heat sink is usually cast on the cylinder head and cylinder block.
Starting device: Cummins generator cannot be started by itself. It must be operated and ignited by external force to achieve self operation. Therefore, Cummins generators must be equipped with special starting devices. The hand cranked Cummins generator is provided with a starting claw; Cummins generator is equipped with starting motor; Compressed air starting device is installed for those started with compressed air.
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