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Method for producing variable geometry turbines for exhaust-gas turbochargers

A technology of exhaust turbine and supercharger, which is applied in the direction of machine/engine, engine manufacturing, combustion engine, etc.

Inactive Publication Date: 2021-03-19
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 using a variable geometry turbine is the presence of a large number of moving parts, for when moving parts are used there is often mutual play between the various parts

Method used

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  • Method for producing variable geometry turbines for exhaust-gas turbochargers
  • Method for producing variable geometry turbines for exhaust-gas turbochargers
  • Method for producing variable geometry turbines for exhaust-gas turbochargers

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 A perspective view of an example of a variable geometry turbine 1 produced by means of the production method according to the invention is shown in an installed state. The variable geometry turbine 1 comprises a first guide vane support ring 2a and a second guide vane support ring 2b, the first guide vane support ring 2a is coaxial to the second guide vane support ring 2b and spaced apart from the second guide vane support ring 2b an axial distance. There are three first through bores 3a in the first guide vane support ring 2a. In the second guide vane support ring 2b there are three second through bores 3b, each first through bore 3a being flush with its associated second through bore 3b. In a variation of the example, this number can be different. With regard to the top view of the first guide vane support ring 2a, in its circumferential direction U, there are two adjacent first through bores 3a arranged at an angle of 120° to each other.

[0027] To make...

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Abstract

The invention relates to a method for producing a variable geometry turbine (1) for an exhaust-gas turbocharger, comprising the following steps: a) coaxially arranging a first and a second guide vane support ring (2a , 2b), axially space them a distance from each other; b) create at least one first guide vane bore (4a) in the first guide vane support ring (2a) by means of the same boring process, and create an alignment The first guide vane bore (4a) and the second guide vane bore (4b); wherein both guide vane bores (4a, 4b) are designed for adjustably receiving the variable geometry turbine (1) guide vanes (5).

Description

technical field [0001] The invention relates to a method for producing a variable geometry turbine of an exhaust-gas turbocharger. Background technique [0002] Supercharging devices such as exhaust turbochargers can be equipped with variable geometry turbines. Variable geometry turbines are equipped with movable guide vanes capable of influencing or changing the inflow cross-section of the exhaust gas of the turbine. Thanks to such a variable geometry turbine, it is possible to vary the exhaust gas flowing into the turbine on the turbine side, so that by virtue of the variable geometry turbine it is possible to influence the rotational speed of the turbine, as well as the performance of the exhaust gas turbocharger. On the compressor side, a variable geometry compressor can be used to influence the flow of air / exhaust gas generated by the compressor wheel. Thus, by using a variable geometry turbine, such a supercharging device can advantageously be tuned specifically for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D17/16F01D9/04F01D17/14
CPCF01D9/041F01D17/14F01D17/16F02B37/00F02B33/00F01D17/165F05D2220/40Y02T10/12F05D2240/12F05D2230/60F05D2230/10F05D2250/311
Inventor 茵·迪克·卢默
Owner BOSCH MAHLE TURBO SYST GMBH & CO KG