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Turbine rotor for a turbocharger, turbocharger and method for producing a turbine rotor

A technology for turbochargers and turbine rotors, applied in turbines, manufacturing tools, engine manufacturing, etc., can solve problems such as unfavorable flow of turbine hubs, poorly formed material seams, etc., to achieve reliable material joint connections, prevent material breakage, low cost effect

Inactive Publication Date: 2012-05-30
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this results in a shape of the turbine hub that is not conducive to flow, since the hub must be equipped with a large cross-section so that the casting material does not harden prematurely
[0009] The positioning of the casting gates on the turbine hub often leads, without additional measures, to significantly worse material seams in the region of the turbine hub and turbine blade pack

Method used

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  • Turbine rotor for a turbocharger, turbocharger and method for producing a turbine rotor
  • Turbine rotor for a turbocharger, turbocharger and method for producing a turbine rotor
  • Turbine rotor for a turbocharger, turbocharger and method for producing a turbine rotor

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Embodiment Construction

[0034] figure 1 A schematic illustration of an exemplary embodiment of a turbine rotor according to the invention is shown. The turbine rotor according to the invention, denoted here with the reference number 1 , preferably has a rotor shaft 2 with an axis of rotation 9 which is formed in one piece and a turbine wheel 3 with an axis of rotation 15 which is preferably formed in one piece. One-piece is understood below to mean that the respective component consists of only one element and is produced continuously from the same material. The turbine 3 has a turbine blade set 4 and a turbine shoulder 5 . The turbine blade set 4 and the turbine shoulder 5 are arranged on oppositely arranged end faces 16 , 17 of the turbine 3 . The turbine shoulder 5 is designed as a projection protruding from the front face 17 of the turbine 3 , rotationally symmetrically to the axis of rotation 15 .

[0035]Alternatively, the turbine shoulder 5 also has a rectangular or, for example, square or ...

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Abstract

A turbine rotor for a turbocharger, in particular for a motor vehicle, has a turbine wheel which is formed in one piece and which has a turbine blade arrangement and a solid turbine wheel shoulder with a first end surface without cavities or depressions. A rotor shaft is formed in one piece and has a second end surface with a depression arranged coaxially with respect to the rotational axis. The first end surface of the turbine wheel shoulder is connected to a second end surface of the rotor shaft in a cohesive fashion by way of a friction weld. There is also provided a turbocharger and a method for producing a corresponding turbine rotor.

Description

technical field [0001] The invention relates to a turbine rotor for a turbocharger. The invention also relates to a turbocharger and a method for producing a turbine rotor. Background technique [0002] DE 10 2007 018 618 A1 describes a generally known construction of a turbocharger for increasing the power of an internal combustion engine in a vehicle, which essentially consists of a radial turbine with a turbine driven by the exhaust gas flow of the internal combustion engine and with a The radial compressor of the compressor wheel, which is arranged in the intake stroke of the internal combustion engine, is formed, the compressor wheel being connected in a rotationally fixed manner to the turbine via the rotor shaft. The turbine wheel is usually joined by material and the compressor wheel is usually connected to the rotor shaft by form fit. The assembly of rotor shaft and turbine is referred to below as the turbine rotor of the exhaust gas turbocharger. [0003] The va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12F01D5/02F01D5/06
CPCB23K20/12B23K20/129B23K2201/006F02C6/12B23K2203/02B23K2201/04B23K2203/18F01D5/025F05D2220/40F05B2220/40B23K2201/001F01D5/06F05B2230/239B23K2101/001B23K2101/006B23K2101/04B23K2103/18B23K2103/26
Inventor U.阿尔布察特B.费林G.明希
Owner CONTINENTAL AUTOMOTIVE GMBH