STARTER NEW 2I8833 - Caterpillar

Turbocharger
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(1) Lock nut (2) Thrust bearing (3) Snap ring (4) O-ring (5) Thrust sleeve (6) Piston ring (7) Turbine wheel (8) Turbine housing (9) Actuator (10) Compressor wheel (11) Piston ting (12) Oil deflector (13) Bearing (14) Snap ringA turbocharger consists of a centrifugal compressor mounted on a common shaft with a turbine that is driven by exhaust gas. The turbocharger compresses the intake air and forces more air into the engine cylinders. This allows the engine to burn more fuel efficiently, producing more horsepower. When the boost pressure is relatively low, the turbocharger can reduce smoke concentration, concentration in the cylinder, fuel consumption and increase engine performance at elevated terrain. When the boost pressure is high, the turbocharger can provide a large increase in engine output by increasing the amount of air that is forced into the engine cylinders.Boost Compensator
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(1) Injection pump assembly (2) Boost compensator assembly (3) Actuator (4) Stop solenoid (5) Plunger (6) Stop solenoid guide (7) Hi-idling body
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High boostWhen boost pressure is high, fuel supply increases for more power.
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Low boostWhen boost pressure is low it prevents over fueling, which decreases smoke at start-up and acceleration.