This document discusses vane compressors, including their operation, applications, advantages, and disadvantages. Vane compressors work by using vanes mounted on an eccentrically positioned rotor inside a cylindrical housing to compress air. As the rotor rotates, the spaces between vanes decrease in volume, compressing air from an inlet to an outlet port. Vane compressors can create good vacuum for suction, provide continuous air supply, and allow for high pressure and power compression. Common applications include use in agriculture, auto body shops, welding, and more. Advantages include long life expectancy and suitability for moderate pressure uses, while disadvantages include vibration during operation and high maintenance costs due to many moving parts.

1. Vane Compressor
T . Sajarupan
Dept. Engineering Technology
Faculty of Engineering Technology
University of Ruhuna ,
Srilanka

2.  Introduction
 Operation method
 Applications
 Advantages
 Disadvantages
Table of Contents

3. INTRODUCTION
 A Compressor is a mechanical
device that increases the
pressure of a gas by reducing its
volume.
 Vane compressor is positive
displacement rotary type
compressor. It used in multi
level industrial applications.
Figure 01 : Types of Compressors

4.  Vane Compressor is also known as Rotary Vane
Compressor or Sliding Vane compressor.
 Vane Compressor was invented by Charles C. Barnes of
Canada. He patented it on 16 June 1874.
 These vanes are made of steel or synthetic fibrous material.
 If the compressor is oil-lubricated, there will be a thin
layer of oil in between the vane and housing.
 High pressure ratio requires large number of vanes ( 20 –
30 ). For a given pressure ratio, cane compressor requires
less work input than that for roots blower.
Figure 02 : First Vane Compressor
Figure 03 : Modern vane compressor
INTRODUCTION…

5.  This is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity.
The rotor is positioned eccentrically within a cylindrical housing.
 The vane-type compressor consists of a cylindrical rotor with longitudinal slots in which radial sliding
vanes are fitted.
 The spaces between adjacent vanes form pockets of decreasing volume from a fixed inlet port to a fixed
discharge port.
 Larger the number of vanes smaller the leakage of air due to small pressure difference prevailing
between the adjacent spaces around the rotor.
Figure 04 : Basic Structure of Vane compressor
INTRODUCTION…

6. 1. Air is drawn in through the intake valve.
2. Air is contained between the rotor and casing.
3. Air is compressed by decreasing volume. Lubricant is continually injected to cool, seal and
lubricate.
4. Compressed Air moves to the Outlet and vanes were released.
5. The rotor continuously rotate and Produce high Pressure Air.
OPERATION METHOD
Most of the modern compressors has Air filter system and cooling system for vane compressor.
Figure 05 : Basic Structure of Vane compressor

7. Operation Method…

8.  They are used in agriculture for operating farm equipment,
material conveying, etc.
 Used in the auto body paint shop for paint pump operation.
 Used in tire and wheel shop for tire inflation.
 Used in dry cleaning.
 Used in the operation of air knives for cutting and peeling.
 It is used in welding operations and air-operated metal and
wood working tools.
APPLICATIONS
Figure 06 : Application of Vane
compressor
Figure 07 : Application of Vane
compressor

9. • It creates a good vacuum for suction.
• Vane Compressor works well for continuous air supplied.
• High pressure and high-power compression are possible with vane compressor.
• Vane compressors have a longer life expectancy.
• They are ideally suited for moderate pressure using applications.
ADVANTAGES
Figure 08 , 09 ,10,11,12 : Different style of Vane compressor for different purposes

10.  The vibration happens during the reciprocation of the cylinder.
 Because of more number of moving parts maintenance cost is high.
DISADVANTAGES
Figure 13 : Vibration monitor report of
Vane compressor
Figure 14 : Maintenance of Vane compressor

11. References

12. Any Question ?
Thank You