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Rotary vane compressor

A compressor and rotary vane technology, applied in the field of rotary vane compressors, can solve the problems of long cycle, time-consuming and labor-intensive blade profiles, and errors, etc.

Inactive Publication Date: 2012-07-04
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the determination of the profile parameters of the blade head of the non-circular stator rotary vane compressor is still under exploration. The current method is to try to obtain a certain parameter, and then conduct a long-term wear test after processing the blade, and finally The blade profile matching the stator profile is obtained by fitting the measured data. The blade profile is time-consuming, has errors, and has a long cycle

Method used

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  • Rotary vane compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] Single cavity rotary vane compressor. Its configuration parameters are as follows:

[0137] The stator profile is a circle whose center is 10mm away from the origin.

[0138] Stator parameters:

[0139] Stator radius R=50mm,

[0140] Stator profile equation, ρ=10 cosθ+10(cos 2 θ+24) 1 / 2 ,

[0141] Blade parameters:

[0142] Blade thickness B=5mm, B 1 =2.25mm, B 2 =2.20mm, e=9.5mm,

[0143] Rotor radius: r=40mm,

[0144] Main arc radius:

[0145] R 0 =(B 1 +B 2 ) / [2cosηsin(ξ / 2)]=9.1013mm,

[0146] in:

[0147] gamma max =25.7831°, γ min =-3.0940°,

[0148] η=(γ max +γ min ) / 2=[25.7831°+(-3.0940°)]=22.6891°,

[0149] ξ=γ max -γ min =[25.7831°-(-3.0940°)]=28.8771°,

[0150] J 1 Coordinates of the point: x j1 =3.9588mm,y j1 =8.1953mm,

[0151] J 2 Coordinates of the point: x j2 =-0.4912mm,y j2 =9.0881mm,

[0152] Center O P Distance to blade centerline x p =1.7088mm;

[0153] Back section correction arc radius:

[0154] R 1 =x p1 / [1-s...

Embodiment 2

[0163] Two-chamber rotary vane compressor. Its configuration parameters are as follows:

[0164] The stator profile is a simple harmonic profile: ρ=r+(R-r)sin 2 θ,

[0165] Stator parameters:

[0166] Major axis radius R=35mm, minor axis radius r=25mm

[0167] Stator Profile Equation, ρ=25+10sin 2 θ

[0168] Blade parameters:

[0169] Blade thickness B=4mm, B 1 = 1.8mm, B 2 =1.8mm, e=7mm,

[0170] Rotor radius: r=25mm,

[0171] Main arc radius:

[0172] R 0 =(B 1 +B 2 ) / [2cosηsin(ξ / 2)]=4.8593mm,

[0173] in:

[0174] gamma max =36.5001°, γ min =-8.4943°,

[0175] η=(γ max +γ min ) / 2=[36.5001°+(-8.4943°)]=28.0058°,

[0176] ξ=γ max -γ min =[36.5001°-(-8.4943°)]=44.9944°,

[0177] J 1 Coordinates of the point: x j1 =2.8905mm,y j1 =3.9062mm,

[0178] J 2 Coordinates of the point: x j2 =-0.7095mm,y j2 =4.8073mm,

[0179] Center O P Distance to blade centerline x p = 1.0839mm;

[0180] Back section correction arc radius:

[0181] R 1 =x p1 / [1...

Embodiment 3

[0190] Two-chamber rotary vane compressor. Its configuration parameters are as follows:

[0191] The stator profile is a simple harmonic profile: ρ=r+(R-r)sin 2 θ,

[0192] Stator parameters:

[0193] Major axis radius R=40mm, minor axis radius r=30mm

[0194] Stator profile equation, ρ=30+10sin 2 θ

[0195] Blade parameters:

[0196] Blade thickness B=4mm, B 1 = 1.85mm, B 2 =1.75mm, e=13mm,

[0197] Rotor radius: r=30mm,

[0198] Main arc radius:

[0199] R 0 =(B 1 +B 2 ) / [2cosηsin(ξ / 2)]=5.7700mm,

[0200] in:

[0201] gamma max = 42.2696°, γ min =2.7916°,

[0202] η=(γ max +γ min ) / 2=[42.2696°+(2.7916°)]=45.0612°,

[0203] ξ=γ max -γ min =[42.2696°-2.7916°]=39.4780°,

[0204] J 1 Coordinates of the point: x j1 = 3.8810 mm, y j1 =4.2697mm,

[0205] J 2 Coordinates of the point: x j2 = 0.2810 mm, y j2 =5.7632mm,

[0206] Center O P Distance to blade centerline x p =2.0310mm;

[0207] Back section correction arc radius:

[0208] R 1 =x p1 ...

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Abstract

The invention relates to a rotary vane compressor of an automobile air conditioner. The compressor comprises a stator, a rotor, vanes, a front end cover and a rear end cover. The each vane tip profile comprises a main circular arc profile and anterior and posterior segment modified circular arc profiles, wherein the main circular arc profile is formed by the main circular arc with OP as the circle center and R0 as the radius; the front endpoint J2 and the rear endpoint J1 of the main circular arc correspond to the extreme points of the included angle of the common normal line in the position where the vanes are meshed with the stator profile and the center line of the vane thickness; the anterior and posterior segment modified circular arc profiles are formed by circular arcs respectivelywith O2 and O1 as the circle centers and R2 and R1 as the radii; one end of the anterior segment modified circular arc profile and one end of the posterior segment modified circular arc profile and the front end and the rear end of the main circular arc are respectively inscribed on J2 and J1; and the other end the anterior segment modified circular arc profile and the other end of the posterior segment modified circular arc profile and the front end faces and the rear end faces of the vane tips are respectively inscribed on Q2 and Q1. The friction power loss of the compressor can be reduced and the volumetric efficiency can be improved; the production cycle of the compressor is shortened and the compressor is easy to machine; and the vane profile matched with any rotor profile of the compressor can be obtained.

Description

technical field [0001] The invention relates to a rotary vane compressor for an automobile air conditioner. Background technique [0002] The Chinese invention patent number is 200510057059.5, and its invention name is "rotary vane compressor" including stator, rotor, blade, front and rear end covers. It solves the problem of blade profile design of circular stator rotary vane compressors with offset blades, but its blade profile design is limited to circular stator rotary vane compressors and cannot be applied to any non-circular stator Rotary vane compressor. Due to the asymmetric distribution of the pressure chambers of the circular stator rotary vane compressor, the stress on the stator cannot be self-balanced. Currently, rotary vane compressors with non-circular stators with symmetrical cavities, such as simple harmonic stators, are widely used. So far, the determination of the profile parameters of the blade head of the non-circular stator rotary vane compressor is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/00
Inventor 宋立权李智成赵学科
Owner CHONGQING UNIV