- Category Technical paper
- Related event International Congress : SIA Powertrain - Versailles 2015 - 27-28 May 2015
- Edition SIA
- Date 05/27/2015
- Author M. Bassett, J. Hall, P. Freeland - Mahle | K. Gray, B. Richards - Aeristech Limited
- Language English
-
Type PDF file (553.66 Ko)
(Downloadable immediately on receipt of online payment) - Number of pages 8
- Code R-2015-04-18
- Fee from 8.00 € to 10.00 €
The next generation of heavily downsized-gasoline engines will demand advanced charge-delivery systems. High-pressure charge-air is required across a broad engine speed range, and to meet driveability requirements, this high pressure charge-air needs to be available almost instantly. Gasoline engine downsizing is already established as a proven technology for reducing CO2 emissions by up to 25 %.
Further benefits are possible through greater downsizing. However, there is a trade-off between the CO2 reduction achieved and vehicle driveability, which currently limits the level of engine downsizing adopted. An objective of this project was to demonstrate a high specific power and torque output combination for a gasoline engine targeted for the road car market, whilst retaining an excellent drivability and fuel economy.
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