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Sliding clip method for Anti-rotation and thrust constraint of a rolling element bearing cartridge

一种滚动元件、抗转动的技术，应用在部件的系统领域，能够解决复杂、REB套筒轴向及转动限制的当前状况昂贵、增加轴承壳体费用和复杂性等问题

Active Publication Date: 2012-04-11
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Performing this process adds expense and complexity to machining the bearing housing
[0021] It can thus be seen that the current state of the art for axial and rotational limitation of REB sleeves is expensive and complex

Method used

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  • Sliding clip method for Anti-rotation and thrust constraint of a rolling element bearing cartridge
  • Sliding clip method for Anti-rotation and thrust constraint of a rolling element bearing cartridge
  • Sliding clip method for Anti-rotation and thrust constraint of a rolling element bearing cartridge

Examples

Experimental program
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Embodiment Construction

[0037] While there are problems associated with conventional methods for constraining a ball bearing sleeve against rotation relative to the bearing housing in which it is mounted, omission of axial and radial restraints will allow the impeller to contact the housing and would allow the sleeve to rotate in the bearing housing, both of which would shorten the life of the turbocharger, respectively.

[0038] The present invention provides a dual-mode sliding clip and a restraint system using the dual-mode sliding clip. The binary pattern sliding clip is characterized by:

[0039] at least one non-circular radially inner surface for engaging in a complementary non-circular surface of the REB sleeve, the radially inner surface is preferably formed in a groove,

[0040] at least one non-circular radially outer surface for engagement in a complementary non-circular surface of the bearing housing, the radially inner and outer engagements producing a an anti-rotational limitation, a...

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PUM

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Abstract

To solve both axial and rotational constraint problems in turbochargers with rolling element bearings (REBs), a REB cartridge is mounted to the bearing housing in a way that is not rigid, thus allowing for an oil damping film. At the same time, the REB cartridge is held both axially and rotationally, so that the outer race does not rotate relative to the bearing housing. This dual purpose is achieved using a special dual mode sliding clip with at least one anti-rotation feature for engaging the bearing housing and at least one anti-rotation feature for engaging the REB cartridge, thereby axially locating the REB cartridge and preventing rotation of the outer race.

Description

technical field [0001] The present invention is directed to a system for constraining a turbocharger rolling element bearing sleeve, and more particularly to a system having a plurality of simple to machine and low cost components which ensures proper assembly and provides Anti-rotational effect and limitation against thrust loads in either axial direction. The present invention provides a simple system for mounting rolling element bearing (REB) sleeves with sufficient clearance to allow damping under pressure by encapsulating an oil film or oil flow, but at the same time allowing the REB sleeve to be axially It is held in a fixed sense to transmit these axial loads to the bearing housing, and in a rotational sense so that the REB sleeve does not rotate relative to the bearing housing. Background technique [0002] The turbocharger delivers air to the engine intake system at a greater density than would be possible in a normally aspirated arrangement, allowing more fuel to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B39/00F01D25/16F16B2/20F16C35/06
CPCF16C2360/24F02C6/12F16C35/067F16C27/04F05D2220/40F01D25/162F05B2220/40F01D25/16F16C19/184F16C27/045F16C2226/50F02B39/00F16B2/20F16C35/06
Inventor T·豪斯P·迪默A·克里A·卡瓦格纳罗
Owner BORGWARNER INC