Bearing device for an exhaust gas turbocharger, and exhaust gas turbocharger

A technology for exhaust gas turbines and superchargers, which is applied in the field of support equipment for exhaust gas turbochargers and exhaust gas turbochargers, can solve the problems of support equipment consumption, high material costs, and expensive processing, and achieve large axial gap effect

Inactive Publication Date: 2019-03-15
IHI CHARGING SYST INT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of such a support device is, in addition to the complex production of the support device, also the high material costs, because the support device is expensively machined, for example, from a blank.

Method used

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  • Bearing device for an exhaust gas turbocharger, and exhaust gas turbocharger
  • Bearing device for an exhaust gas turbocharger, and exhaust gas turbocharger
  • Bearing device for an exhaust gas turbocharger, and exhaust gas turbocharger

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The swivel mechanism 1 of the exhaust gas turbocharger 2 according to the prior art is figure 1 constituted in the embodiment. The exhaust gas turbocharger 2 has a flow-through exhaust gas guide section 3 through which a fluid, usually exhaust gas, flows during operation of the exhaust gas turbocharger 2 . The exhaust gases are generally, but not necessarily, combustion products of an internal combustion engine, not shown in detail.

[0028] Associated with the exhaust gas turbocharger 2 are a flow-through air guide section 4 and a bearing section 5 positioned between the exhaust gas guide section 3 and the air guide section 4 , wherein the swivel mechanism 1 is rotatably accommodated on the bearing. Section 5.

[0029] The rotary machine 1 comprises a compressor wheel 6 and a turbine wheel 7 , which are connected to one another in a rotationally fixed manner by means of a shaft 8 . A compressor wheel 6 is arranged in a compressor wheel chamber 9 of the air guide sec...

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PUM

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Abstract

The invention relates to a bearing device for an exhaust gas turbocharger, having a first radial bearing (13) and a second radial bearing (14), wherein the radial bearings (13, 14) are configured forradially mounting a shaft (8) of the exhaust gas turbocharger (2) with a rotational axis (11), and wherein a first outflow gap (18) and a second outflow gap (23), respectively, are configured betweenthe first radial bearing (13) and a first supporting wall (17) of the exhaust gas turbocharger (2) for axially supporting the first radial bearing (13), which first supporting wall (17) extends radially and is configured so as to face a turbine wheel (7) of the exhaust gas turbocharger (2), and between the second radial bearing (14) and a second supporting wall (22) of the exhaust gas turbocharger(2) for axially supporting the second radial bearing (14), which second supporting wall (22) extends radially and is configured so as to face a compressor impeller (6) of the exhaust gas turbocharger(2). According to the invention, for axial and simultaneous radial bearing and / or for supporting the radial bearing, the first outflow gap (18) and / or the second outflow gap (23) are / is configured soas to be inclined or curved with respect to the rotational axis (11) at least partially with the configuration of an angle (alpha) which is greater than or less than 90 DEG.

Description

technical field [0001] The invention relates to a mounting arrangement for an exhaust gas turbocharger of the type specified in the preamble of claim 1 and to an exhaust gas turbocharger according to claim 11 . Background technique [0002] Laid-open document DE 10 2008 033 814 A1 discloses a bearing device for an exhaust gas turbocharger, said bearing device constituting a radial support for radially supporting the shaft of the exhaust gas turbocharger and arranged on two Spacer connections between radial supports. The entire bearing arrangement is designed in one piece, that is to say the radial bearing and the spacer are produced jointly. The problem with such a support device is, in addition to the complex production of the support device, also the high material costs, since the support device is expensively machined, for example, from a blank. [0003] A lubricant discharge takes place between the radial bearing and the wall opposite the radial bearing, said lubricant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/16F16C17/18F16C33/10F16C17/02F16C17/10
CPCF01D25/166F16C17/10F16C17/18F16C33/1085F16C2360/24F02B39/08F01D25/162F01D25/20F05D2210/12F05D2220/40F05D2240/52F05D2260/406F05D2260/98F16C19/14
Inventor 托尔斯滕·格拉姆施马丁·克雷谢尔
Owner IHI CHARGING SYST INT
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