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

Abstract

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.