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The Design of the NOMAD Advanced Concepts Research Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
Annotation ability available
The design of a new multi-cylinder gasoline research engine with a high degree of flexibility in the way it can be configured to test advanced charging systems, variable valve trains and air hybrid layouts is discussed. The rationale of adopting a small swept volume DI diesel engine as the donor for the block, crankshaft and pumps is explained, together with the engineering reasons for the final choice of donor engine and the reverse engineering necessary to fit the gasoline-specific parts to the original diesel components. Analysis of the cylinder head cooling jacket based upon assumed flow patterns in the cylinder block is presented, together with the results of structural analysis of the cylinder head. There is also some discussion on the engine's initial durability under the arduous high-load conditions provided by the first area of investigation, turboexpansion.
CitationTurner, J., Kalafatis, A., and Atkins, C., "The Design of the NOMAD Advanced Concepts Research Engine," SAE Technical Paper 2006-01-0193, 2006, https://doi.org/10.4271/2006-01-0193.
- Turner, J. Pearson, R. Kenchington, S. “Concepts for Improved Fuel Economy from Spark Ignition Engines” Int. J. Engine Res. 6 2005
- Turner, J. Pearson, R. Bassett, M. Oscarsson, J. “Performance and Fuel Economy Enhancement of Pressure Charged SI Engines through Turboexpansion - An Initial Study” SAE paper number 2003-01-0401
- Taitt, D. Garner, C. Swain, E. Pearson, R. Bassett, M. Turner, J “An Automotive Engine Charge-Air Intake Conditioner System: Thermodynamic Analysis of Performance Characteristics” Proc. Instn Mech. Engrs
- Milovanovic, M. Chen, R. Turner, J. “Influence of variable valve timings on the gas exchange process in a controlled auto-ignition engine” Proc. Instn Mech. Engrs 218 2004
- Turner, J Kenchington, S. Stretch, D. “Production AVT development: Lotus and Eaton's electrohydraulic closed-loop fully variable valve train system” 25th Vienna Motor Symposium 2004
- Turner, J. Bassett, M. Pearson, R. Pitcher, G. Douglas, K. “New operating strategies afforded by fully variable valve trains” SAE paper number 2004-01-1386
- Wilson, N. Allen, J. Muddell, G. “Future valve train systems to reduce performance compromises” I.Mech.E. paper number C389/120 1992
- Law, D. Kemp, D. Allen, J. Kirkpatrick, G. Copland, T. “Controlled Combustion in an IC-Engine with a Fully Variable Valve Train” SAE paper number 2000-01-0251
- Drangel, H. Bergsten, L. “The new Saab SVC Engine - An interaction of variable compression ratio, high pressure supercharging and downsizing for considerably reduced fuel consumption” Aachen Colloquium 2000
- Moller, C.E. Johansson, P. Grandin, B. Lindstrom, F. “Divided Exhaust Period - A Gas Exchange System for Turbocharged SI Engines” SAE paper number 2005-01-1150
- Sweetland, P. Grissom T. “Regulated 2-stage (R2S) charging system for future passenger car and LDV diesel engines” Global Powertrain Congress 2003
- Arnold, S. “Turbocharging technologies to meet critical performance demands of ultra-low emissions diesel engines” 19th Cliff Garrett Turbomachinery Award Lecture, SAE paper number 2004-01-1359
- Higelin, P. Vasile, I. Charlet, A. Chamaillard, Y. “Parametric optimization of a new hybrid pneumatic-combustion engine concept” Int. J. Engine Res. 5 2
- Turner, J. Pearson, R. Bassett, M. Blundell, D. Taitt, D. “The Turboexpansion Concept - Initial Dynamometer Results” SAE paper number 2005-01-1853
- Turner, J. Pearson, R. Watson, I. Taitt, D. “Advanced Charging Systems for Downsized Engines” Haus der Technik Munich 16 17 March 2005