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Optimal Design for New Rotary Engine with Geometric Shape Functions on Combustion Chamber and Ports

Author

Listed:
  • Young-Jic Kim

    (Department of Mechanical Engineering, Inha University, Incheon 22212, Republic of Korea)

  • Tae-Joon Park

    (Department of Mechanical Engineering, Inha University, Incheon 22212, Republic of Korea)

  • Ji-Hyuck Yang

    (Department of Mechanical Engineering, Inha University, Incheon 22212, Republic of Korea)

  • Chang-Eon Lee

    (Department of Mechanical Engineering, Inha University, Incheon 22212, Republic of Korea)

Abstract

This study presents an optimal design for a new rotary engine. Instantaneous shape functions were applied to the combustion chamber, and intake and exhaust ports were derived based on the rotor and housing design functions; then optimized design parameters were derived for a rotary engine. The three main parameters were shape distance, eccentric distance and rotor thickness. The design process for the optimized internal shape was subsequently defined considering target specifications for the rotary engine, and a prototype engine was designed and fabricated with a 336 cm 3 intake volume. The compression pressure for the prototype engine was compared with the motoring test and calculated. These outcomes confirmed the new engine’s feasibility, and the derived geometric shape functions will be helpful to ensure optimal design for rotary engines using one- or three-dimensional computational fluid dynamics.

Suggested Citation

  • Young-Jic Kim & Tae-Joon Park & Ji-Hyuck Yang & Chang-Eon Lee, 2024. "Optimal Design for New Rotary Engine with Geometric Shape Functions on Combustion Chamber and Ports," Energies, MDPI, vol. 17(7), pages 1-17, April.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:7:p:1754-:d:1370960
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