Tilting pad journal bearing

a journal bearing and tilting pad technology, applied in the direction of bearings, shafts and bearings, rotary bearings, etc., can solve the problems of deterioration of the load supporting capacity of the bearing or the effect of vibration suppression by an oil film, and achieve the effect of suppressing the increase of the temperature of the opposite surface of the pad, and reducing the impact for

Active Publication Date: 2018-01-04
KOBE STEEL LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect that this patented technology solves are how it prevents heating up when there's too much water or other substances inside its pads during use without affecting their performance. This results in better cooling efficiency for these materials while also preventing any negative side-effects such as reduced pressures caused by excessive moisture buildup near certain areas within the material itself.

Problems solved by technology

Technologies are being developed for preventing instability caused by excessive heat generated during use of tilt pad journals bearing in rotating machines with high speeds. However, this technology cannot work properly when there's too much cooler air near it due to factors like fluctuation in ambient temperatures. This causes damage even more easily than other types of bearings.

Method used

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  • Tilting pad journal bearing
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Examples

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modified example

[0040]In the embodiment described above, the single oil supply groove 24 formed along the isopleth is provided as “the oil supply unit” of the present invention; however, the oil supply unit may not have to be configured in such a manner. For example, the oil supply unit may be configured as in respective modified examples described below. Explanations of common configurations to the foregoing embodiment r to the respective modified examples are omitted as appropriate. Also, explanations of effects achieved by the common configurations are omitted as appropriate.

[0041]As shown in FIG. 5, plural oil supply grooves 25, 26 (here, two oil supply grooves) parallel to each other may be provided as “the oil supply unit” of the present invention. Here, it is not necessary that the oil supply grooves are exactly parallel to each other. The oil supply grooves 25, 26 may be substantially parallel to each other without intersecting with each other. The plural oil supply grooves 25, 26 are provided

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Abstract

On a facing surface (12a) of a pad (12) that faces a rotation shaft, an oil supply unit (24) is provided in an end region downstream of the rotation shaft in the rotation direction, and the oil supply unit (24) is formed along part of an isopleth of the pressure distribution on the facing surface (12a) generated by a lubricant being caught between the rotation shaft and the facing surface (12a), said part of the isopleth being downstream, in the rotation direction, of the pressure maximum of the pressure distribution.

Description

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Claims

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Application Information

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Owner KOBE STEEL LTD
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