8982593741 Excavator Turbocharger SH240-6 SH250-6 Engine Replacement Parts

8982593741 SH240-6 Travel Motor Gearbox Turbocharger SH250-6 Excavator Engine Replacement Parts

Functioning as an exhaustactuated air compressor on excavator engines, the turbocharger applies exhaust gas thermal energy to pressurize intake air for more efficient diesel combustion. This greatly boosts power output, cuts fuel consumption and lessens black smoke discharge.

Core Functions

Power StrengtheningEngines of equal displacement achieve a 30%–50% power increase and major torque improvement through turbocharging, offering robust heavyload and hillclimbing capability.

Fuel Conservation & Emission ControlSufficient air intake guarantees full combustion, reducing fuel usage by roughly 5% and lowering black smoke, CO and hydrocarbon pollutants.

LowRPM Torque GainEnhanced lowspeed torque delivers greater strength for excavator heavyload startup and digging tasks.

Basic Structure (Three Primary Structural Modules)

Turbine Section (Exhaust Side)Linked to the exhaust manifold, highheat exhaust gas at 600–900 ℃ strikes the turbine wheel, rotating the main shaft at 100,000–200,000 rpm.

Compressor Section (Intake Side)Driven by the shared central shaft, the compressor impeller compresses air filtered by the air cleaner and sends boosted air into engine cylinders.

Center Housing Assembly (BearingLubrication Unit)Featuring floating bearings and engineoil heatexchangelubrication ducts, it endures high temperatures and ultrafast rotation speeds. Engine oil cools bearings to stop sintering failure.

Working Principle (4Step Functional Cycle)

Exhaust Gas ImpulseHightemperature highpressure exhaust flows into the turbine casing and rotates the turbine impeller at high velocity.

Coaxial Supercharging SynchronizationThe turbine shaft drives the compressor wheel to spin synchronously at the same high speed.

Air Compression StageThe compressor sucks clean filtered air and compresses it to 0.1–0.2 MPa with rising air temperature.

Intercooler Heat ReductionHot compressed air is cooled by the intercooler to increase density, then enters cylinders for increased fuel injection and higher power output.

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