Turbocharger System Description - Toyota 7M-GE Repair Manual

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TURBOCHARGER SYSTEM
- Description
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DESCRIPTION
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"
Oxygen .
Turbine Wheel
Sensor
\ .\
I
Full-floating Bearing
Valve
Oil P&sage
From Oil Inlet Pipe
Intercooler Pipe Arrangement
TdO
CSOll5 Fl2
The turbocharger is a device which increases
engine output by sending a greater amount of air-
fuel mixture to the engine than under normal con-
ditions. Engine output depends upon the amount
of the air-fuel mixture ignited per unit of time.
Therefore, to increase engine output, the most
effective method is to send a greater amount of
air-fuel mixture into the cylinder.
than usual, engine output can be increased by .
increasing the average combustion pressure with-
out increasing the engine speed.
Superchargers are either turbocharger type
(using exhaust gas to turn the turbine) or
supercharger type (using the engine crankshaft,
etc. to mechanically turn the pump, etc.). For the
Supra 7M-GTE engine, the turbocharger type has
been adopted.
In other words, by installing a special tur-
bocharger and providing more air-fuel mixture