How does a turbocharger enhance engine efficiency on petrol 2014 Nissan Juke?

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An efficient turbocharger as fitted only on 1.2 litre engine and which is mounted directly on the surface of the exhaust manifold helps to improve the pressure of air to be forced into the cylinders above atmospheric pressure hence allow the supply of more fuel in proportion to the air intake. The operation of the turbocharger draws energy from the blow-by gases, circulating through a uniquely designed housing that routes the exhaust gases to spin a turbine wheel coupled to a shaft, connected to a compressor wheel to compress the air drawn in through the car's throttle before it goes in the inlet manifold. The compressed air then moves to the intercooler which is an air to air heat exchanger mounted just behind the front bumper to cool the air to improve it density for better engine utilization. Pressure in the inlet manifold is controlled by a wastegate that venting exhaust gase through an actuator depending on the pressure to the turbine wheel, while Boost pressure is sensed by an air inlet tube. Oil supplied to the turbo shaft originates from the main oil gallery and being in a state of constant supply, floats on the oil film, the oil falling to the sump through the drain pipe. The precaution is expedient because of its high rotating speed and the temperature level where the turbocharger operates; one should not race the engine straight after start; there should be a delay before the engine returns to idle and should remain at idle for sometime before it is switched off after high speed runs. Sustained change of oil and filter accompanied with the usage of high-esteem oil reduces instances of carbon deposits on the turbo shaft and eventual failure.

Genuine 2014 Nissan Juke Turbocharger

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2014 Nissan Juke Turbocharger

2014 Nissan Juke Turbocharger

2014 Nissan Juke Turbocharger

2014 Nissan Juke Turbocharger

2014 Nissan Juke Turbocharger

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