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Plain bearing with hydrodynamic axial securing

A technology of radial bearings and axial stops, applied in the direction of sliding contact bearings, shafts and bearings, bearings for rotational motion, etc., can solve the problems of lack of accessibility, impossible assembly, etc., and achieve assembly-friendly and cost-effective Effect

Active Publication Date: 2019-09-17
TURBO SYST SWITZERLAND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in modern designs with radial bearing receptacles integrated into the bearing housing it is not possible to assemble radial stop elements due to lack of accessibility

Method used

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  • Plain bearing with hydrodynamic axial securing
  • Plain bearing with hydrodynamic axial securing
  • Plain bearing with hydrodynamic axial securing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] exist figure 1 A schematic cross-sectional view of a section of a turbocharger 100 with a radial bearing arrangement 110 according to the embodiment described here is shown in . especially figure 1 Radial bearing assembly 110 of turbocharger 100 is shown for supporting shaft 120 in bearing housing 130 . as in figure 1 As shown in , the radial bearing assembly 110 according to the present invention includes a radial bearing bushing 140 disposed between the shaft 120 and the bearing housing 130 . The radial bearing bushing 140 has a radially outwardly protruding collar 141 which cooperates axially with an axial stop 131 on the bearing housing 130 . Typically during assembly, the radial bearing bush (hereinafter also referred to as plain bearing bush GLB) is pushed axially into the bearing housing until the radially outwardly protruding flange 141 of the radial bearing bush 140 strikes against the Bearing housing 130. In particular, the radial bearing bush 140 can ...

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Abstract

The invention relates to a radial bearing arrangement (110) of an exhaust gas turbocharger (100) for mounting a shaft (120) in a bearing housing (130). The radial bearing arrangement (110) comprises a radial bearing bush (140) which is arranged between the shaft (120) and the bearing housing (130), wherein the radial bearing bush (140) comprises a radially outwardly projecting collar (141) which interacts in the axial direction with an axial stop (131) on the bearing housing (130). The geometry of the radially outwardly projecting collar (141) is interrupted by way of cut-outs, with the result that a force which acts on the collar (141) as a result of an oil feed pressure is minimized, and wherein the radial bearing bush (140) is configured in such a way that a lubricating film can be formed between an end surface of the radial bearing bush (140) and a counterpiece (160) which is arranged on the shaft (120).

Description

technical field [0001] The invention relates to the field of exhaust gas turbochargers for supercharged internal combustion engines. In particular, the invention relates to a radial bearing arrangement for an exhaust gas turbocharger for mounting the shaft in a bearing housing, which has a stop for the radial slide bearing bush to prevent axial displacement. Background technique [0002] Turbochargers for large engines are implemented with sliding- or rolling-element bearings. Newer ABB-Turbochargers are equipped with hydrodynamic slide bearings, which are typically supplied via the engine lubricating oil system. A distinction is made here between bearing parts for axial support (absorbing compressor or turbine thrust) and bearing parts for radial support (guiding the shaft in the radial direction and absorbing and damping shaft movements). [0003] In turbochargers, axial forces act on the turbine wheel and on the compressor wheel, which result in a total axial force acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/18F16C17/02F16C35/02F16C17/10
CPCF16C35/02F16C17/02F16C17/10F16C2360/24F16C17/18F16C33/106F05D2220/40F01D25/166
Inventor B.安曼C.克雷恩坎普A.赫特尔P.阿赫特尼希
Owner TURBO SYST SWITZERLAND LTD
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