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Method for producing a rotor for a supercharging device

A technology of supercharging device and rotor, which is applied to gas turbine devices, supporting elements of blades, combustion engines, etc., can solve the problems of inaccurate rotational symmetry of the rotor, etc.

Active Publication Date: 2018-02-23
BOSCH MAHLE TURBO SYST GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the disadvantage of the known assembly method is that here the rotor parts have to be individually balanced and after installation, although not always, there are surfaces on the rotor which are not exactly rotationally symmetrical

Method used

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  • Method for producing a rotor for a supercharging device
  • Method for producing a rotor for a supercharging device

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Embodiment Construction

[0016] Depend on figure 1 Shown is a rotor 1 , produced according to the charging device (not shown) according to the invention, with a compression wheel 2 , a labyrinth seal 3 and a turbine wheel 4 . The other bearing segment has a radial bearing surface 5 or 5 ′, and is also arranged at the longitudinal end on the compression wheel 2 or the turbine wheel 4 in each case. The individual components of the rotor 1 (i.e. for example the turbine wheel 2, the labyrinth seal 3, the compression wheel 4 and also the bearing segments) can in this case be connected to one another with a non-positive fit, a material connection or a positive fit, in particular an adhesive bond, Screwed, welded or soldered to each other.

[0017] In addition to the outer radial bearing surfaces 5 , 5 ′, which are preferably constructed as radial air bearings and mounted radially on the rotor 1 , an axial air bearing can be arranged in the region of the bearing segments such that The entire rotor 1 is pre...

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Abstract

The invention relates to a method for producing a rotor (1) of a supercharging device, in particular an exhaust-gas turbocharger, with at least one compression wheel (2), a turbine (4) and a bearing segment, wherein the bearing segment is In one case arranged at a longitudinal end, said bearing segment has a radial bearing surface (5, 5') for mounting said rotor (1) in a bearing housing. It is important for the invention that in this case at least the radial bearing surfaces (5, 5') are assembled with radial dimension allowance, the compression wheel (2) and the turbine (4) and the The bearing segments are assembled to form the rotor (1), and at least the radial bearing surfaces (5, 5') of the fully assembled rotor (1) are subsequently machined, especially turned or ground, until the radial bearing The surfaces (5, 5') are rotationally symmetric. As a result, a rotationally symmetrical rotor (1) can be produced in an inexpensive and simple manner.

Description

technical field [0001] The invention relates to a method for producing a rotor of a charging device, in particular an exhaust-gas turbocharger, having a compression wheel and a turbine. The invention also relates to a rotor produced according to this method, and a supercharging device having a rotor of this type. Background technique [0002] A rotor for an exhaust-gas turbocharger or for a supercharger generally consists of several components, such as a turbine, a shaft and a compression wheel. In this case the parts are assembled individually, with rotationally symmetrical end contours. After assembly, pre-balanced components such as the compression wheel and turbine are installed to form the rotor. After final installation, the rotor is balanced again. [0003] However, the known assembly methods have the disadvantage that here the rotor parts have to be individually balanced and after installation, although not always, there are surfaces on the rotor which are not exa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/02F01D25/16F02C6/12B23P13/00
CPCB23P13/02B23P15/006F01D5/027F05D2220/40F05D2230/61F01D5/063F02B37/00Y02T10/12F01D5/02F01D11/02F01D25/16F01D25/28F05D2240/24F05D2240/54F05D2240/55
Inventor 马哈尔·克卢萨切克
Owner BOSCH MAHLE TURBO SYST GMBH & CO KG