Research on Combustion Noise of an Extended-Expansion-Linkage General-Purpose Engine

汎用複リンク式高膨張比エンジンの燃焼騒音に関する研究

The authors have been engaged in the research on the combustion noise of an extended expansion linkage engine. First, the authors analyzed the main noise frequency of the combustion noise source using a conventional engine. Thereby, the main noise frequency was 800Hz band radial noise from the flywheel assembled to the crankshaft. Also, the sound pressure of the combustion noise was correlated with the 800Hz frequency band excitation force acting on the crankpin. Next, the authors examined the combustion noise of the extended expansion linkage engine. As a result, the combustion noise of this engine was found to be reduced against a conventional engine because of a lower excitation force and a stronger crankshaft strength created by the linkage mechanism.複リンク式高膨張比エンジンの燃焼騒音を検証した結果，燃焼を緩慢化させる機構特性によりクランクピンへ作用する800Hz 帯加振力が低減する事と，クランク半径が低減しFW 表面の応答感度が低減する事で，燃焼騒音が低減する．これにより，燃焼騒音低減と熱効率向上との両立が可能であることを示した．

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.46.731
• Record URL:
  • http://scholar.google.com/scholar_lookup?title=Research%20on%20Combustion%20Noise%20of%20an%20Extended-Expansion-Linkage%20General-Purpose%20Engine&author=G.%20Naoe&author=A.%20Maruyama&publication_year=2015
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Naoe, Gaku
  • Maruyama, Atsushi
• Publication Date: 2015-7

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 731-736
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 46
  • Issue Number: 4
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Audio frequency; Combustion; Crankshafts; Flywheels; Frequency domain analysis; Heat engines; Internal combustion engines; Modal analysis; Noise; Noise control
• Uncontrolled Terms: Linkages
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01666807
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 23 2018 4:47PM