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Development of a Multiple-Link Variable Valve Event and Lift (VVEL) System
Published October 01, 2007 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
The VVEL system has the valve lift characteristics unique to a multiple-link mechanism. It provides large valve lift in the high-speed range combined with low friction at low engine speeds. This paper describes the structural features of the multiple-link valve mechanism that achieve such characteristics as well as the various performance levels attained with the VVEL system.