RESEARCH PAPERS: Mechanisms Papers

Development of an Optimum Variable-Stroke Internal-Combustion Engine Mechanism From the Viewpoint of Kinematic Structure

[+] Author and Article Information
F. Freudenstein

Department of Mechanical Engineering, Columbia University, New York, N.Y. 10027

E. R. Maki

Mechanical Research Department, General Motors Research Laboratories, Warren, Mich. 48090

J. Mech., Trans., and Automation 105(2), 259-266 (Jun 01, 1983) (8 pages) doi:10.1115/1.3258519 History: Received May 24, 1982; Online November 19, 2009


The method of separation of kinematic structure and function has been used in the development of an optimum variable-stroke engine mechanism for automotive power plants. A systematic search procedure resulted in the structures of 39 mechanisms, one of which was judged optimal (U.S. Patent No. 4,270,495—reference [13]). The prior art, as disclosed in a number of patents and other publications, was evaluated and shown to be either included in the mechanisms created in the course of the search, or deliberately excluded by the search specification. The general nature of the approach, which combines mathematical and creative approaches, is believed to be useful in mechanical design.

Copyright © 1983 by ASME
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