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Latchcam: A Camshaft Integrated 2-Mode Variable Valve Actuation System
Technical Paper
2005-01-0769
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
This paper describes the concept, analysis and preliminary rig proving of a 2-mode mechanical variable-valve-actuation system, “Latchcam”, designed initially for prototype bucket-tappet overhead-cam applications. The rig-test data allows the prototype Latchcam performance to be compared to a state-of-art 2-mode system in a current cylinder-head application. Some general design implications and issues are reviewed.
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Authors
- J. Eaton - Southwest Research Institute
- I. Gilbert - Southwest Research Institute
- D. Lacy - Southwest Research Institute
- C. Lacy - Southwest Research Institute
- M. J. McClelland - Southwest Research Institute
- R. Meldolesi - Southwest Research Institute
- J-P. Pirault - Southwest Research Institute
- G. Roberts - Southwest Research Institute
Citation
Eaton, J., Gilbert, I., Lacy, D., Lacy, C. et al., "Latchcam: A Camshaft Integrated 2-Mode Variable Valve Actuation System," SAE Technical Paper 2005-01-0769, 2005, https://doi.org/10.4271/2005-01-0769.Also In
References
- Dresner, T. Barkan, P. A Review of Variable Valve Timing Benefits and Modes of Operation SAE 891676
- Demmelbauer-Ebner, W. Dachs, A Lenz, H.P. Variable Valve Actuation Systems for the Optimisation of Engine Torque SAE 910447
- Bruestle, C. Porsche 911 Turbo with VarioCam Plus AutoTechnology 5 2001