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Valve Selector Hardware
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English
Abstract
A mechanism has been developed which deactivates selected valves on a spark ignition engine. Greater fuel economy results from reduced throttling losses when using fewer cylinders under light load conditions. Several approaches were considered, with the releasable fulcrum proving to be the most effective concept. Subsequent engineering efforts refined the design to develop a simple bolt-on device which would meet specific performance requirements.
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Citation
Mueller, R. and Uitvlugt, M., "Valve Selector Hardware," SAE Technical Paper 780146, 1978, https://doi.org/10.4271/780146.Also In
References
- Callahan Joseph M. “Fuel Economy” Auto Industries December 1 1973
- Engine Modifications Michigan State University Department of Information Services February 21 1974
- Bates Bradford “Variable Displacement by Engine Valve Control,” SAE Paper 1978 SAE Congress and Exposition February 28 1978