Compressor wheel

Abstract

A compressor wheel for an internal combustion engine may include a plurality of blades which in a circumferential direction of the wheel are spaced from one another. The plurality of blades may respectively include an inflow edge which during operation are subject to an inflow of a compressible fluid substantially axially to the wheel axis. The plurality of blades may include a surface layer of locally distinct materials to adapt to locally distinct loads during operation.

Description

technical field [0001] The invention relates to a compressor wheel, in particular for a rotor of an exhaust gas turbocharger on an engine with internal combustion, said compressor wheel having blades spaced apart from each other in the circumferential direction of the wheel, in During operation of the compressor, said compressor wheel experiences an input of compressed fluid, in particular exhaust gases of the combustion process flowing in at low pressure from the engine side. [0002] The invention also relates to the manufacture of such a compressor wheel. Background technique [0003] In order to reduce emissions of nitrogen oxides, it is known to use internal combustion, especially in diesel engines, to provide exhaust gas recirculation, so that in each case a greater or lesser amount of exhaust gas is supplied to the combustion process of the engine. In this connection, high-pressure exhaust gas recirculation is known on the one hand, and low-pressure exhaust gas recir...

AI Technical Summary

Problems solved by technology

This has the disadvantage that the air fed to the internal combustion process is heated considerably and thus only very little oxygen is made available for the internal combustion process, so that the achievable internal combustion engine power remains relatively low

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