This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Continuously Variable Displacement Drive for Engines Part 2, Design, Analysis, and Test
Technical Paper
2021-01-0451
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
A new type of drive system has been designed, analyzed, patented, prototyped, and tested. The drive’s unique capabilities include the ability to vary the bottom dead center position to reduce the stroke, and simultaneously vary the top dead center position to achieve the desired compression ratio with one simple, low friction mechanism. The purpose of the concept is to reduce losses associated with operation at partial load as most engines spend a preponderance of their operating life at partial load. This paper covers the design and analysis, prototyping, and testing of the unit as an air compressor.
Engine simulation of the unit configured as a gasoline engine showed a ~30% improvement in fuel economy on a 10-mode weighted cycle and is covered in SAE 2021-01-0442, “Continuously Variable Displacement Drive for Engines Part 1, Performance Simulation.”
Citation
Arnold, S. and Riesland, D., "Continuously Variable Displacement Drive for Engines Part 2, Design, Analysis, and Test," SAE Technical Paper 2021-01-0451, 2021, https://doi.org/10.4271/2021-01-0451.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Alsterfalk , M. , Filipi , Z.S. , and Assanis , D.N. The Potential of the Variable Stroke Spark-Ignition Engine SAE Technical Paper 970067 1997 https://doi.org/10.4271/970067
- Knezek , R. and Pastucek , M. Jan. 10, 2017
- Sanderson , A. and Dieckmann , J. Feb. 19, 2008
- Scalzo , J.
- Scalzo , J. 1988
- Arnold , S. Aug. 20, 2013
- Arnold , S. Jul. 21, 2020
- Heywood , J.B.