Rotary Vane compressor

Rotary Vane Compressor-Definition, Working principle ,Application, PDF

Amrit Kumar Fluid Mechanics and Machinery Leave a Comment

Are you looking for the Rotary Vane Compressor? So today we will study the Definition, Working principle, Application, Advantages, Disadvantages, and PDF. Here you will get the articles of Mechanical Engineering in brief with some key points and you will get to know an enormous amount of knowledge from It. So If you find this articles helpful, please let us know in the comment box, either if any correction required too, also let us know in the comment box.

Rotary Vane Compressor:

It was invented by Charles C. Barnes of Sackville, New Brunswick, who patented it on  16 June 1874.

Rotary Vane Compressor Definition: 

This is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity.

The vane-type compressor consists of a cylindrical rotor with longitudinal slots in which radial sliding vanes are fitted.

The rotor is positioned eccentrically within a cylindrical housing.

Rotary Vane compressor

The spaces between adjacent vanes form pockets of decreasing volume from a fixed inlet port to a fixed discharge port.

Compressor inlet and discharge valves are not employed in the design.

A vane compressor always compresses the gas to the design pressure defined by the manufacturer, regardless of the pressure in the system in which the compressor is discharging.

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Rotary Vane Compressor Working principle:

Rotary compressors are another type of famous compressors. It uses two Asymmetrical rotors that are also called helical screws to compress the air.

The rotors have a very special shape and they turn in opposite directions with very little clearance between them.

The rotors are covered by cooling jackets. Two shafts on the rotors have placed that transfer their motion with the help of timing gears that are attached at the starting point of the shafts/compressor (as shown in the image).

Rotary Vane compressor

Air sucked in at one end and gets trapped between the rotors and get pushed to another side of the rotors.

The air is pushed by the rotors that are rotating in the opposite direction and compression is done when it gets trapped in clearance between the two rotors.

Then it pushed towards the pressure side.

Rotary screw compressors are of two types oil-injected and oil-free.

Oil-injected is cheaper and most common than oil-free rotary screw compressors.

Rotary Vane Compressor Application:

  1. Agriculture
  2. Body shop and Automotives
  3. Dry cleaning
  4. Energy
  5. Food and beverages
  6. Manufacturing
  7. Medical and Dental
  8. Read more Application

Rotary vane Compressor Advantages:

  • This is oil-free air output.
  • This is suitable for continuous air supplied.
  • High power (up to 500 hp) high pressure (up to 85 bar) compression is possible.

Preparing for Competitive Exam? If Yes, then must go for this book:

The most valuable and trusted Mechanical Objective book by R S Khurmi 5000+ Objective.

Rotary Vane Compressor Disadvantages:

Maintenance cost is high because have more moving parts.

Vibration causes when reciprocation of the cylinder.

Rotary Vane compressor PDF:

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About the Author

Amrit Kumar

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Amrit is a Co-founder of Learn Mechanical Portal (Previously owned "Engramritkumar.com"). He completed his diploma in Mechanical Engineering from Acharya Polytechnic Bangalore and also completed his B-Tech from Delhi. Amrit is now preparing for Govt. exams. If you need help, you can ask him regarding any suggestions in the mechanical engineering field. He loves to meet new people.

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