Design Opt of Engine Valve

Topics: Internal combustion engine, Automobile, Carbon steel Pages: 2 (305 words) Published: August 11, 2011

The main object of this project is to reduce the material from profile radius and dish parameter. This project mainly concentrates on design and analysis of stress, buckling analysis, fatigue analysis, heat treatment condition on wear resistance and comparing the results with the current valve results.

In order to save material several design principles are explained. These are derived from the properties of material, the kind of mechanical stress, the solution to the design problem, the structure, the manufacturing technology and the product use. The recommendations have a more qualitative and strategic character and have to be optimized and adapted to the individual designs. With a design the engineer strongly influences the required amount and kind of material necessary to build the product. Using several examples, this article gives an overview of the general strategies and principles for a material-saving design, which helps to combine knowledge of mechanics and design methodology and supports their application in industry.

Recently, it has been expected that high carbon alloy valves will be adopted at extremely high rate to car engines where higher engine performance is required than in automobiles. However, there were difficulties with respect to reliability required for motorcycle engines. The reason for this is that engine valves of car engines are not only smaller in stem diameter, but also used at a higher maximum engine speed than those of automobile engines. This study is about a material reduction of high carbon alloy engine valves that meet reliability requirements in motorcycle engines.

Project scope:
Since, lighter in weight than conventional heat resistant steel engine valves, they possess a number of advantages promising increase in engine power, downsizing of engine, improvement of acceleration response, fuel economy, and...
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