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Rotor bearing assembly

A technology of bearings and bearing sleeves, applied in the direction of bearing components, bearings, bearings of rotating motion, etc., can solve problems such as pump failures

Inactive Publication Date: 2010-07-14
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if a cracked bearing (e.g. sleeve) in the rotor (e.g. impeller) stack is actually cracked, then serious pump failure can occur

Method used

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  • Rotor bearing assembly
  • Rotor bearing assembly
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Examples

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Embodiment Construction

[0026] It should be understood that the following description provides many different embodiments or examples for implementing different components of various embodiments. Specific examples of components and devices will be described below to simplify the description. Of course, these are examples only and are not intended to be limiting. Furthermore, reference numerals and / or words may be reused in different embodiments. This repetition is for simplicity and clarity and does not in itself show a relationship between the various embodiments and / or configurations described. Moreover, configurations in which a first component is on or over a second component in the following description may include embodiments in which the first and second components are in direct contact, as well as embodiments in which additional components are formed between the first and second components. Embodiments such that the first and second components may not be in direct contact.

[0027] Aspects...

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Abstract

The invention relates to a rotor bearing assembly. An electrical submersible pump according to one or more aspects of the present invention comprises a stator; a rotatably shaft; and a rotor bearing disposed between the shaft and the stator, the rotor bearing comprising carbide bearing sleeve receiving the shaft, wherein the carbide bearing sleeve does not form a keyway; and a device rotatively coupling the carbide bearing sleeve to the shaft.

Description

[0001] related application [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 140,939, filed December 27, 2008. Contents of the invention [0003] According to one or more aspects of the present invention, an electric motor includes: a housing; a stator installed in the housing; a shaft rotatably installed in the housing; and a rotor bearing including a carbonized bearing sleeve connected to the shaft through a metal member. [0004] According to one or more aspects of the present invention, a bearing apparatus for use with a rotating shaft includes: a carbonized sleeve having an inner surface forming a bore receiving the shaft; and means for rotatably coupling the carbonized sleeve to the shaft. [0005] An electric submersible pump according to one or more aspects of the present invention includes: a stator; a rotating shaft; a rotor bearing disposed between the shaft and the stator, the rotor bearing including a carbonized bearing sleev...

Claims

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Application Information

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IPC IPC(8): H02K5/16F04D13/08
CPCH02K7/083H02K7/08F04D29/026F04D13/10F16C33/04F04D29/047F16C17/02F05D2230/232F05D2300/226F05D2300/10
Inventor A·沃森
Owner PRAD RES & DEV LTD