CE Excavator Turbocharger E320D C6.4 49179 - 02910 Engine Parts Turbochargers

49179 - 02910 Excavator Turbocharger Turbo Turbocharger E320D C6 . 4

Specifiion

Description

The turbocharger's compressor draws in ambient air and compresses it before it enters into the intake manifold at increased pressure.[29] This results in a greater mass of air entering the cylinders on each intake stroke. The power needed to spin the centrifugal compressor is derived from the kinetic energy of the engine's exhaust gases.

In automotive appliions, 'boost' refers to the amount by which intake manifold pressure exceeds atmospheric pressure at sea level. This is representative of the extra air pressure that is achieved over what would be achieved without the forced induction. The level of boost may be shown on a pressure gauge, usually in bar, psi or possibly kPa. The control of turbocharger boost has changed dramatically over the 100-plus years of their use. Modern turbochargers can use wastegates, blow-off valves and variable geometry, as discussed in later sections.

In petrol engine turbocharger appliions, boost pressure is limited to keep the entire engine system, including the turbocharger, inside its thermal and mechanical design operating range. Over-boosting an engine frequently causes damage to the engine in a variety of ways including pre-ignition, overheating, and over-stressing the engine's internal hardware. For example, to avoid engine knocking (also known as detonation) and the related physical damage to the engine, the intake manifold pressure must not get too high, thus the pressure at the intake manifold of the engine must be controlled by some means. Opening the wastegate allows the excess energy destined for the turbine to bypass it and pass directly to the exhaust pipe, thus reducing boost pressure. The wastegate can be either controlled manually (frequently seen in aircraft) or by an actuator (in automotive appliions, it is often controlled by the engine control unit).

Characteristic

1.When the inlet filter of the compressor on the turbine side is found dirty, then sufficient air does not get supplied for combustion which is the root cause for surging.
2.Similarly, if the nozzle, blades of the turbine side is also dirty then sufficient air cannot be produced for combustion
3.Damage of silencer
4.Wear and tear of turbocharger bearings

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