Operation Manual / 4 Product description / TPS44-H.. - TPS52-H..
1 Introduction / 1.5 Position of the rating plate
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HZTL4037_EN
Revision E
July 2017
Mode of operation
The turbocharger is a turbomachine and consists of the following main components:
¡
Turbine
¡
Compressor.
These components are installed on a common shaft and form the rotor
and function of the turbocharger
The exhaust gases of the internal combustion engine flow through the turbine casing (09)
and the nozzle ring (08) onto the turbine (07). The turbine (07) uses the energy contained in
the exhaust gas to drive the rotor and, with this, the compressor wheel (10). The exhaust
gases then reach the atmosphere through the exhaust gas pipe connected to the turbine
casing.
The compressor wheel (10) sucks in air or a mixture of gas and air through the air suction
branch (01) or the filter silencer. In the compressor wheel (10), the energy required for build-
ing up the pressure is transferred to the air. By flowing through the diffuser (03) and the
compressor casing (02), the air is compressed further and is then directed to the engine cyl-
inders.
The rotor runs in a radial plain bearing bush (06) that is located in the bearing casing (04)
between the compressor and the turbine. The axial thrust bearing (05) is located in front of
the radial plain bearing bush.
The bearings are connected to a central lubricating oil duct which is normally supplied by the
lubricating oil circuit of the engine. The oil outlet lies at the lowest point of the bearing cas-
ing (04).
1.5
Position of the rating plate
The rating plate (01) is attached at the top on the bearing casing of the turbocharger. Ex-
planations regarding the rating plate can be found in the chapter dealing with safety.
Fig. 2: Position of the rating plate
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