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Radial compressor impeller including a shroud and aerodynamic bearing between shroud and housing

Inactive Publication Date: 2016-07-14
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The design of this patent allows for a quieter and more cost-effective way to support the rotor in a housing. This is achieved by using a fluid-dynamic support instead of typical bearings. Additionally, a magnet and coil ring are used to generate a magnetic field that interacts with the magnet to easily drive the rotor. This results in a particularly long service life for the design.

Problems solved by technology

It may thus be prevented that different axial bearing forces are generated by the bearing structure and the second bearing structure, which would result in an unbalanced orientation of the rotor in the compressor.

Method used

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  • Radial compressor impeller including a shroud and aerodynamic bearing between shroud and housing
  • Radial compressor impeller including a shroud and aerodynamic bearing between shroud and housing
  • Radial compressor impeller including a shroud and aerodynamic bearing between shroud and housing

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Embodiment Construction

[0021]FIG. 1 shows a sectional view through a compressor 10 according to a first specific embodiment and FIG. 2 shows a section of the sectional view shown in FIG. 1. FIG. 3 shows a sectional view through compressor 10 shown in FIGS. 1 through 2 along a section plane A-A shown in FIG. 1. Compressor 10 includes a rotor 15 and a housing 20. Housing 20 includes a first housing part 25 which is situated on the left in FIGS. 1 and 2. Housing 20 further includes a second housing part 30 situated on the right in FIG. 1. Rotor 15 is coupled to a drive unit 35. Rotor 15 includes a shaft 40 which is connected to drive unit 35. Shaft 40 is thereby rotatable around a rotation axis 45.

[0022]Compressor 10 has an input side 50 and an output side 55. Input side 50 is designed as a single channel in the specific embodiment, input side 50 then branching into two feed channels 51. The two feed channels 51 are thus switched in parallel with respect to their flow. It is, of course, also possible that co...

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PUM

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Abstract

A compressor for a heat pump circuit and / or a refrigerating system circuit, including a housing and a rotor rotatably supported around a rotation axis, the housing being situated at least partially on the circumference of the rotor, the rotor including at least one hub and at least one blade situated radially on the outside of the hub, the blade being designed to convey a main fluid flow, the rotor including a shroud situated radially on the outside of the blade, the shroud being situated radially spaced apart from the housing, a bearing structure being provided radially on the outside of the shroud, the bearing structure is designed to form a bearing fluid flow between the shroud and the housing in order to form a fluid-dynamic bearing for supporting the rotor in the housing.

Description

FIELD[0001]The present invention relates to a compressor for a heat pump circuit and / or a refrigerating system circuit, including a housing and a rotor rotatably supported around a rotation axis, the housing being situated at least partially on the circumference of the rotor, the rotor including at least one hub and at least one blade situated radially on the outside of the hub, the blade being designed to convey a main fluid flow, the rotor including a shroud situated radially on the outside of the blade, the shroud being situated radially spaced apart from the housing, a bearing structure being provided radially on the outside of the shroud, the bearing structure being designed to form a bearing fluid flow between the shroud and the housing in order to form a fluid-dynamic bearing for supporting the rotor in the housing.BACKGROUND INFORMATION[0002]Compressors for heat pump circuits and / or refrigerating system circuits have a rotor which is rotatably supported with the aid of rolle...

Claims

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Application Information

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IPC IPC(8): F04D29/057F04D25/02F04D29/44F04D29/28F04D29/42F04D17/10F04D29/053
CPCF04D29/057F04D17/10F04D25/026F04D29/441F04D29/284F04D29/4206F04D29/053F04D17/105F04D25/0606F04D29/0513F04D29/162
Inventor VOGT, ANDREASDUKART, ANTONDERHARDT, STEFFENCLAY, ALISTER
Owner ROBERT BOSCH GMBH