The Omnivore Wide-range Auto-Ignition Engine: Results to Date using 98RON Unleaded Gasoline and E85 Fuels

2010-01-0846

04/12/2010

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Omnivore is a single cylinder spark ignition based research engine conceived to maximize the operating range of auto-ignition on a variety of fossil and renewable fuels.
In order to maximize auto-ignition operation, the two-stroke cycle was adopted with two independent mechanisms for control. The charge trapping valve system is incorporated as a means of varying the quantity of trapped residuals whilst a variable compression ratio mechanism is included to give independent control over the end of compression temperature. The inclusion of these two technologies allows the benefits of trapped residual gas to be maximised (to minimize NOx formation) whilst permitting variation of the onset of auto-ignition.
2000rpm and idle are the main focus of concern whilst also observing the influence of injector location. This paper describes the rational behind the engine concept and presents the results achieved at the time of writing using 98ulg and E85 fuels.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0846
Pages
29
Citation
Blundell, D., Turner, J., Pearson, R., Patel, R. et al., "The Omnivore Wide-range Auto-Ignition Engine: Results to Date using 98RON Unleaded Gasoline and E85 Fuels," SAE Technical Paper 2010-01-0846, 2010, https://doi.org/10.4271/2010-01-0846.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0846
Content Type
Technical Paper
Language
English