Overview of Current Continuously Variable Valve Lift Systems for Four-Stroke Spark-Ignition Engines and the Criteria for their Design Ratings University of Applied Sciences, Iserlohn

Format:

Conference/Event

Author/Creator:

Hannibal, Wilhelm, author.

Conference Name:

SAE 2004 World Congress & Exhibition (2004-03-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

This paper provides an up-to-date overview of variable valve control systems that permit valve lift and opening time to be continuously varied, and of the choice of the valve lift function needed for engine load control. In recent years in particular, following the introduction on a volume production scale of a system with continuously variable valve lift, development activity on valve control systems of this kind has been stepped up considerably. This overview refers to the principal systems known to be under development and to recent patent applications. It describes the design criteria and ratings needed for continuously variable valve lift systems, discusses the criteria that are of importance if such valve control systems are to be adopted on production vehicles and indicates the factors that have to be taken into account before the severe requirements imposed by series-production engines can be satisfied. Design details are described to indicate the potential that exists for these systems to be applied to high-volume production engines

Notes:

Vendor supplied data

Publisher Number:

2004-01-1263

Access Restriction:

Restricted for use by site license