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Rotation system having radial gas bearing

A technology of radial bearings and gas bearings, which is applied in the field of rotating systems, can solve problems such as damage to the stability of bearing gaps and deformation of bearing parts, and achieve the effect of keeping the gas gap constant and preventing deformation

Active Publication Date: 2019-10-25
FISCHER ENG SOLUTIONS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during rotation, the shown bearing part is intentionally deformed, which compromises the constancy of the bearing clearance

Method used

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  • Rotation system having radial gas bearing
  • Rotation system having radial gas bearing
  • Rotation system having radial gas bearing

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Embodiment Construction

[0057] Figure 1 to Figure 4 The first rotary system shown according to the invention is a turbo compressor. The compressor comprises a housing 11 , a shaft 12 rotatable relative to the housing and a bearing assembly 51 supporting the shaft 12 relative to the housing 11 via radial gas bearings. A compressor wheel 78 is attached to one end of the shaft 12 . The gas bearing is realized by a gas gap, in particular an air gap, formed between the shaft 12 and the radial bearing sleeve 55 described in detail below.

[0058] The bearing assembly 51 includes a first radially inner bearing region 52 formed by a radial bearing sleeve 55 and supporting the shaft 12 . The bearing assembly 51 also includes a third radially outer region 54 held by the housing 11 , and a second radially intermediate region 53 connecting the first region 52 to the third region 54 .

[0059] Bearing assembly 51 includes a spacer flange 56 having an inner section 57 and an outer section 58 . The second regi...

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Abstract

A rotation system (10) having at least one radial gas bearing, containing a housing (11), a shaft (12) which is rotatable relative to the housing (11), and at least one bearing assembly (51) which hasa first region (52) supporting the shaft (12) and supports the shaft (12) relative to the housing (11) by means of a radial gas bearing in that an air gap, in particular a gas gap, is formed betweenthe bearing assembly (51) and the shaft (12). The first region (52) contains a tubular radial bearing bushing (55) or is formed thereby. The inside of the radial bearing bushing (55) has a bearing surface (66) inside which the shaft (12) is supported in the radial direction. The bearing assembly (51) also has a third region (54) which is held by the housing (11) or is integrated on or in the housing (11) and a second region (53) which connects the first region (52) to the third region (54) and is more elastic than the first region (52), at least owing to the shape of the second region and / or owing to the shape of the first region (52).

Description

technical field [0001] The invention relates to a rotary system with at least one radial gas bearing. Background technique [0002] A rotary system with radial gas bearings includes a housing, a shaft rotatable relative to the housing, and at least one bearing assembly that supports the shaft relative to the housing via radial gas bearings. The bearing assembly includes at least one bearing surface within which the shaft is supported. A gas gap, in particular an air gap, is formed between the shaft and the bearing surface, which gas gap is realized as a gas bearing. [0003] CH658499A5 discloses an elastic bearing device for bearings of high-speed rotors (such as turbomachinery). The bearing unit consists of a polygonal elastic member and a washer to limit shaft deflection at the bearing point. The elastic member includes an elastic rod and an elastic joint, and is press fit to the ball bearing outer ring or bushing, which houses the ball bearing. This allows the rotor t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06
CPCF16C32/0607F16C32/0677F16C2360/44F16C17/024F16C17/03F16C27/02
Inventor W·施蒂格尔R·博勒S·海格R·斯图特
Owner FISCHER ENG SOLUTIONS AG