RECEPTACLE AS-CONNECTOR 4518019 - Caterpillar

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(10) Optional sea water-cooled exhaust riser (11) Optional transmission oil coolerSea water from the heat exchanger flows through the transmission oil cooler and into the exhaust riser.
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(12) Air inlet heaterThe air inlet heater is controlled by the ECM. The air inlet heater aids in engine start-up and reducing white smoke during engine start-up. Turbocharger
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(13) Compressor wheel housing (14) Turbocharger compressor outlet (15) Oil inlet port (16) Turbine housing coolant outlet port (17) Turbine housing (18) Air inlet (19) Oil outlet port (20) Turbine housing coolant inlet port (21) Exhaust inletThe turbocharger is installed on the rear of the exhaust manifold. All the exhaust gases from the engine go through the turbocharger. The compressor side of the turbocharger is connected to the aftercooler by pipe.The exhaust gases enter turbine housing (17) through exhaust inlet (21). The exhaust gases then push the blades of the turbine wheel. The turbine wheel is connected by a shaft to the compressor wheel. The turbine housing is cooled from the jacket water cooling system. The coolant enters the turbine housing via turbine housing coolant inlet port (20). The coolant flows around the exhaust gas passage and out the turbine housing coolant outlet port to the sea water-cooled heat exchanger.Clean air from the air cleaners is pulled through compressor housing air inlet (18) by the rotation of the compressor wheel. The action of the compressor wheel blades causes a compression of the inlet air. This compression increases the amount of air that is induced into the combustion chamber. More fuel is required with the increase of intake air. An increase in the amount of fuel that is burned will increase the power of the engine.When the load on the engine increases, more fuel is injected into the cylinders. The combustion of this additional fuel produces more exhaust gases. The additional exhaust gases cause the turbine and the compressor wheels of the turbocharger to turn faster. As the compressor wheel turns faster, more air is forced into the cylinders. The increased flow of air gives the engine more power by allowing the engine to burn the additional fuel with greater efficiency.
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(22) Canister (23) Line (boost pressure) (24) Actuating leverThe operation of the wastegate is controlled by the boost pressure. At high boost pressures, the wastegate opens in order to decrease boost pressure. At low boost pressure, the wastegate closes in order to increase boost pressure. When the engine is operating under conditions of low boost, a spring pushes a diaphragm in canister (22). This action moves actuating lever (24) in order to close the valve of the wastegate. Closing the valve of the wastegate allows the turbocharger to operate at maximum performance.As the boost pressure through line (23) increases against the diaphragm in canister (22), the valve of the wastegate is opened. When the valve of the wastegate is opened, the rpm of the turbocharger is limited by bypassing a portion of the exhaust gases. The exhaust gases are routed through the