Radial Compressor

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Radial Compressor

• 11/21/2005
• Created By
• Group 5
• Caleb Moreno
• Charles Davis
• Jacob Nink

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Table of Contents

• Abstract
• Design Criteria
• Specifications of Radial Compressor
• CAD Drawing
• Position Analysis
• Velocity Analysis
• Acceleration Analysis
• Working Model
• Results and Conclusions

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Abstract

• Three piston radial compressor that can be broken
  down into three separate slider-cranks.
• Due to the circular arrangement only one piston
  will be compressing at a time.
• Due to similarity between all pistons, only one
  piston will be discussed for simplicity.

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Design Criteria

• Large stroke length for increased air compression
• Piston is restricted to linear motion
• Reduced crank arm length for higher RPM operation

• Bearings and seals must be able to withstand long
  term high RPMs

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Specifications

• Crank Arm Length 20mm
• Coupler 80mm
• Stroke Length 40mm
• Piston Size 40mm diameter x 20mm depth
• Operational RPM 1200 rpm

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Radial Compressor Auto CAD
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Slider Crank Diagram
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Position, Velocity and Acceleration Data
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Animation
(Must have Slider Program and Working Model
Installed to operate)
Link
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Results and Conclusions

• Decided upon a short crank length of 20 mm to
  increase piston velocity. This lead to a shorter
  stroke length of 40mm for the piston but with a
  shorter crank, the piston can maintain a higher
  rpm.
• Three piston design for efficiency and heat
  reduction around each piston.
• High load bearings are required at all pins to
  withstand the high rpms of the crank arm.
• Seals must be able to take a vast amount of heat
  during operation.

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Resources

• Video Clip http//www.tech.purdue.edu/at/Courses/A
  EML/
• Working Model of Radial Engine taken from Design
  of Machinery CD