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Centrifugal compressor for an exhaust gas turbocharger

A technology for centrifugal compressors and exhaust gas turbines, applied in gas turbine devices, components of pumping devices for elastic fluids, machines/engines, etc. question

Active Publication Date: 2014-03-26
BMTS TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the gap is too large, that is, the width of the gap is too large, the performance of the exhaust gas turbocharger using the compressor wheel will be reduced, because the gap causes a decrease in the compressor wheel transfer rate.

Method used

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  • Centrifugal compressor for an exhaust gas turbocharger

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Embodiment Construction

[0029] figure 1 A centrifugal compressor for an exhaust gas turbocharger according to the invention is shown, denoted by reference numeral 1 . The centrifugal compressor 1 comprises a compressor housing 2 with an axial inlet passage 3 and a centrifugal discharge passage 4 . The compressor housing 2 partially surrounds a compression space 5 . In the compression space 5 is arranged a compressor wheel 6 for conveying and compressing the gas. The compressor wheel 6 comprises an axial intake side 7 towards the intake channel 3 and a centrifugal discharge side 8 towards the exhaust channel 4 . The axial wheel surface profile 9 extends from the intake side 7 to the exhaust side 8 .

[0030] The centrifugal compressor 1 further comprises an adapter 10 generally in the form of a sleeve. The adapter 10 can be inserted along the axial direction A around the axial inlet passage 3 into a fixing section 11 provided on the compressor casing 2 . At a first end 12 facing the compressor whe...

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Abstract

The invention relates to a centrifugal compressor (1) for an exhaust gas turbocharger, in particular an internal combustion engine. The centrifugal compressor has a compressor housing (2) comprising an axial inlet channel (3) and a centrifugal outlet channel (4); with a compressor impeller (6) for circulating and compressing a gas, wherein the compressor impeller (6) has an axial inlet side (7) facing towards an inlet passage (3), a centrifugal outlet side (8) facing an outlet channel (4), and an axial wheel surface contour (9) extending from the inlet side (7) extends up to the outlet side (8); a substantially sleeve-like adapter element (10) which may be axially inserted into an attachment portion (11) disposed at the compressor housing (2); wherein the adapter element (10) comprises, at least in sections, a surface contour (13) which is attached to the axial wheel surface contour (9), such that a gap width (W) between the adapter element (10) and the compressor impeller (6) can be adjusted along mutually facing surface contours (9, 13) through axial movement of the adapter member (10) in a fastening portion (11).

Description

technical field [0001] The present application relates to a centrifugal compressor for an exhaust gas turbocharger, in particular for an exhaust gas turbocharger of an internal combustion engine, and to an exhaust gas turbocharger having such a centrifugal compressor. The invention also relates to a method of producing such a centrifugal compressor. Background technique [0002] Exhaust turbochargers are used, for example, in internal combustion engines to increase the pressure during gas exchange. Such an exhaust gas turbocharger can be provided with a centrifugal compressor having a compressor wheel through which gas can flow and be compressed. For this purpose, the compressor wheel can comprise an axial inlet side and a radial outlet side and be arranged in the compression space. An intake channel leads to the inlet side of the compressor wheel and, for internal combustion engines, to the low-pressure area of ​​the fresh air system equipped with the exhaust gas turbocha...

Claims

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Application Information

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IPC IPC(8): F04D29/42F04D29/28
CPCF01D9/026F01D25/24F02C6/12F04D25/024F04D29/4213F04D29/622F05D2220/40F05D2260/30Y10T29/49243
Inventor 马克思·菲德勒乌尔斯·黑尼希法比安·哈斯林格
Owner BMTS TECH SHANGHAI CO LTD
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