Development of Laser-Clad Valve Seats that enabled high-speed combustion and global production

Laser-clad valve seats directly deposit wear-resistant alloy onto cylinder head. This direct deposition process enhances knocking resistance by raising thermal conductivity, and improves combustion efficiency by increasing design flexibility around the ports. This technology enables innovative cylinder head design that helps to improve the trade-off relationship between tumble flow and intake resistance. As a result, it helps greatly increase engine thermal efficiency and specific power. To enable the application of this technology as a global, a new wear-resistant material was designed for use with alternative fuels. in addition, a new energy-saving manufacturing process for worldwide production was developed.

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.50.648
• Record URL:
  • https://www.jstage.jst.go.jp/article/jsaeronbun/50/3/50_20194320/_pdf
• 
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=Development%20of%20Laser-Clad%20Valve%20Seats%20that%20enabled%20high-speed%20combustion%20and%20global%20production&author=H.%20Aoyama&author=M.%20Kawasaki&author=N.%20Miyara&author=N.%20Sugiyama&author=K.%20Andou&author=K.%20Yanaka&author=T.%20Oshima&publication_year=2019
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Aoyama, Hironori
  • Kawasaki, Minoru
  • Miyara, Naoyuki
  • Sugiyama, Natsuki
  • Andou, Kimihiko
  • Yanaka, Kohei
  • Oshima, Tadashi
• Publication Date: 2019-5

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 648-653
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 50
  • Issue Number: 3
  • 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: Clad metals; Cylinder heads; Internal combustion engines; Lasers; Thermal efficiency; Vehicle design; Wear resistant alloys
• Candidate Terms: Turbulent flow
• Subject Areas: Design; Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01712121
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jul 22 2019 8:01PM