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Crankshaft thrust bearing and device including the crankshaft thrust bearing

A technology for thrust bearings and bearing bodies, applied to crankshaft bearings, shafts and bearings, bearings, etc., can solve the problems of not being able to provide thrust load support and being expensive

Active Publication Date: 2018-02-09
CUMMINS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is an expensive option, and the lower 180 degree bearings associated with the main bearing caps do not provide significant thrust load support
It is also possible to supply pressurized oil to the upper thrust bearing, but this option is also expensive and requires additional block machining operations

Method used

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  • Crankshaft thrust bearing and device including the crankshaft thrust bearing
  • Crankshaft thrust bearing and device including the crankshaft thrust bearing
  • Crankshaft thrust bearing and device including the crankshaft thrust bearing

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Embodiment Construction

[0011] To facilitate an understanding of the principles of the invention, specific language will be used to describe the following with reference to the embodiments illustrated in the drawings. It should be understood, however, that no limitation of the scope of the invention is thereby intended, and that any modifications and further changes in the described embodiments are also contemplated herein, as would normally occur to a person skilled in the art, as herein Any further application of the principles of the invention as described.

[0012] In conventional designs, a 360 degree thrust bearing around the crankshaft may be used, providing sufficient oil to the upper portion of the bearing. Oil emerging from the main bearing is trapped by the 360 ​​degree thrust bearing, is pressurized at the inner radius of the thrust bearing and flows radially outward to the outer radius through constant width slots, thereby providing a lubricant supply to the thrust bearing. However, a 3...

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Abstract

Improved fluid supply grooves in the face of an axial thrust bearing for a crankshaft are disclosed. The grooves have a larger cross-sectional area at the outer radius of the bearing body than at the inner radius of the bearing body.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from US Provisional Application No. 61 / 730,768, filed November 28, 2012, the contents of which are hereby incorporated by reference in their entirety for all purposes. technical field [0003] The present disclosure relates to improved oil supply to crankshaft thrust bearings. More specifically, the present invention relates to improved oil feed grooves in crankshaft thrust bearings. Background technique [0004] Thrust bearings are used to minimize the axial movement of the crankshaft in internal combustion engines. One of the options for lubricating thrust bearings is to deliver oil to the surfaces of the thrust bearing and then allow the oil to drain freely from the bearing housing. A 360 degree thrust bearing can be used which simulates the oil emerging from the main bearing to lubricate the thrust bearing. However, this is an expensive option, and the lower 180 degre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/10
CPCF16C9/02F16C17/04F16C33/046F16C33/1065
Inventor 理查德·古斯塔夫森艾谱莉·佩里
Owner CUMMINS LTD