Small micro centrifugal compressor without radial bearing

A centrifugal compressor and radial bearing technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems such as the inability to achieve ultra-high speed, small and miniaturization of centrifugal compressors, and achieve the effect of simple and compact structure

Active Publication Date: 2019-06-18
QINGDAO UNIV OF SCI & TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, centrifugal compressors can only be miniaturized through high speed. At present, the existing magnetic suspension bearings, gas bearings and sealing technologies cannot achieve ultra-high-speed miniaturization of centrifugal compressors.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Small micro centrifugal compressor without radial bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to further elaborate the technical means and effects that the present invention adopts for reaching the intended invention purpose, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the present invention are described in detail as follows:

[0025] A small and micro centrifugal compressor without radial bearings, such as figure 1 As shown, it includes a housing 1, a main shaft 2, a first axial static ring 3, a first moving ring 4, a rotor 5, a rotating sleeve 51, a stator 6, a fixed sleeve 61, a second moving ring 7, and a second shaft To the static ring 8 and the centrifugal impeller 9.

[0026] The casing 1 of the compressor is provided with an air inlet and an air outlet. The main shaft 2 is rotatably installed in the housing 1 , and an air flow hole 21 is opened in the main shaft 2 . One end of the air flow hole 21 communicates with the exhaust port of the housing ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a small micro centrifugal compressor without a radial bearing, and relates to the technical field of compressor design. The small micro centrifugal compressor comprises a shell, an air circulation hole communicated with an exhaust port of the shell is formed in a main shaft, a cavity is formed between a first axial static ring and the inner bottom of the shell, at least twocircles of an air holes A are formed in the circumference of the first axial static ring, a first movable ring is fixedly arranged on the main shaft, a rotating sleeve is fixedly arranged on the outer surface of a rotor, and a fixed sleeve is fixedly arranged on the inner surface of a stator; and a second movable ring is fixedly arranged on the main shaft, a second axial static ring is fixedly arranged in the shell, and the air inlet port and the air outlet port of the centrifugal impeller and the air inlet port and the air outlet port of the shell are oppositely arranged. The small micro centrifugal compressor has the beneficial effects that radial and axial thrust bearings do not need to be installed, the compressor is completely oil-free, and a lubricating system is not needed, so thatthe structure of the compressor is simpler and more compact, miniaturization of the compressor is facilitated, heat generated in the working process of the motor is taken away by the airflow circulating channel, and the effect of internal circulation cooling is achieved.

Description

technical field [0001] The invention relates to the technical field of compressor design, in particular to a small and micro centrifugal compressor without radial bearings. Background technique [0002] With the development of electronic technologies such as integrated circuits, the heat flux density of modern high heat flux devices is increasing. Passive cooling methods cannot meet the heat dissipation requirements. A refrigeration system is required to ensure the normal operation of the electronic system. In many occasions such as mobile or portable electronic systems, chip cooling, radar cooling, and national defense and military industries, due to space and weight constraints, there is an urgent need for lightweight, small and micro refrigeration systems. [0003] The compressor is the core key equipment of the refrigeration system. As a rotary turbomachinery, the centrifugal compressor has the advantages of compact and simple structure, high efficiency and reliability, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/28F04D29/30F04D29/58F04D29/00
Inventor 唐斌李连生刘广彬杨启超赵远扬
Owner QINGDAO UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products