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exhaust gas turbocharger

A technology of exhaust gas turbine and supercharger, which is used in machine/engine, engine manufacturing, combustion engine, etc.

Active Publication Date: 2019-06-07
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem here is that the breakaway bar always hides some part of the turbine wheel and cannot directly direct the flow against this part of the turbine wheel

Method used

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  • exhaust gas turbocharger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] An exemplary embodiment of the exhaust gas turbocharger 1 will be explained in detail below. Similar or functionally similar components are provided with the same reference numerals throughout the exemplary embodiments. figure 1 The general construction of the exhaust gas turbocharger 1 of all exemplary embodiments is shown.

[0023] according to figure 1 , the exhaust gas turbocharger 1 has a compressor 2 with a compressor wheel 3 . A turbine 4 with a turbine wheel 5 and a turbine housing 6 is also provided. A plurality of turbine blades 12 are formed on the turbine wheel 5 . Shaft 7 connects compressor wheel 3 to turbine wheel 5 .

[0024] Two channels 13 , 14 are formed in the turbine housing 6 . The exhaust gas is guided via said channels 13 , 14 onto the turbine wheel 5 . This causes the turbine wheel 5 to rotate. Via the shaft 7, the compressor wheel 3 is thus also caused to rotate. Air is sucked in and compressed via the compressor wheel 3 .

[0025] The...

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PUM

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Abstract

The invention relates to an exhaust gas turbocharger (1) for a passenger car comprising a compressor (2) with a compressor wheel (3); a turbine (with a turbine wheel (5) and a turbine housing (6) 4); a shaft (7) connecting the compressor wheel (3) to the turbine wheel; and S > 2 channels (13, 14) formed in the turbine housing and intended for guiding the exhaust gas to On the turbine wheel, define along the shaft an axial direction (8) from the compressor to the turbine wheel, a radial direction (9) perpendicular to the axial direction, and a circumferential direction around the axial direction opposite to the direction of rotation of the turbine wheel (10), each channel guides the flow against the turbine wheel in the entire width of the turbine wheel as seen in the axial direction and in a section as seen with respect to the circumferential direction, the turbine wheel comprising Z≥10 turbine wheels The blades (12), the turbine blades are defined in the form of main blades (22) and intermediate blades (23).

Description

technical field [0001] The invention relates to an exhaust gas turbocharger. In particular, it proposes a compact exhaust gas turbocharger for use in passenger cars. Background technique [0002] In exhaust gas turbochargers according to the prior art, the exhaust gas is guided via at least one volute onto a turbine wheel of the exhaust gas turbocharger. It is known for pulsed inflation in volutes to separate the two channels from each other by a separating crossbar. The two channels can lead to different cylinders of the associated internal combustion engine. In the case of this arrangement, the two channels are arranged next to each other in the axial direction of the turbocharger, and therefore each individual channel does not direct the flow against the entire width of the turbine wheel. The problem here is that the splitter bar always hides some part of the turbine wheel and cannot directly direct the flow against this part of the turbine wheel. In order to ensure a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/04F02B37/02
CPCF01D5/048F02B37/025F05D2220/40F05D2250/51Y02T10/12F01D5/14F01D25/24
Inventor M·古髙A·史切瑞
Owner BORGWARNER INC