The exhaust gases are made to pass through the turbocharger turbine which will rotate the compressor mounted on the same shaft on the air inlet side. The air from the air filter is sucked by VGT compressor. The compressed air then flows through an intercooler and then to the intake manifold. For more information refer Air intake system. PRECAUTIONS Avoid Lifting the turbocharger by holding the • actuator. Avoid Lifting turbocharger holding the rod end. • Avoid Lifting turbocharger holding the • compressor side. Hold the turbo-charger at the turbine housing • /center housing. No foreign particles (dust/dirt) should enter the • vacuum line. Ensure the conditions of handling and • installation of turbocharger/manifold are such that there is no risk of shocks, dropping the turbocharger or damage to the sealing surfaces (turbine housing inlet and outlet surfaces, compressor inlet and outlet, oil circuit), or damage to the actuator or flow adjusting rod and screw which might lead to the misalignment. If the turbocharger is dropped, then it should be • inspected. If it is damaged, it should not be used. Put few drops of oil during assembly and rotate • the wheel with finger. Look for free movement of wheel with no wheel rubbing. 3. LNT + DPF The Close Coupled Catalytic Converter is a critical element of the system used to reduce vehicle exhaust emissions. The catalytically active element within the converter lowers the activation energy needed to selectively transform harmful combustion products into less harmful gases. The catalyst becomes active when it reaches a threshold temperature. Close coupled Catalytic Converter is physically positioned very close to the engine exhaust ports to enable quicker light-off. It also enables flushing out of the carbon particles present in the Catalytic Converter. Benefits Positioned close to the engine exhaust ports for • fast light-off and reduced cold start emissions. Robust construction offers excellent durability. • Internally insulated construction design enables • improved durability, reduced heat rejection and lower noise. 4. Silencer The main function of the silencer is to reduce the amount of noise emitted by the engine exhaust gases that flow out. It typically makes use of the change in the cross sectional area which can be made as a chamber to filter or reduce the sound waves which the engine produces. Exhaust Pipe Assy. with Pre-silencer Diesel Engine Ph-2 (CAFÉ) 84
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