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Intake Manifold Length Effects on Turbocharged Gasoline Downsizing Engine Performance and Fuel Economy
Technical Paper
2012-01-0714
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Downsizing of the spark ignition engine is accepted as a key contributor to reducing fuel consumption. Turbocharged engines are becoming commonplace in passenger vehicles, replacing naturally aspirated larger capacity engines. However, turbocharged engines have typically suffered from “lag” during transient operation. This perceived effect is a combination of the low speed steady state torque and a slower rate to reach maximum torque during a load step. In order to increase customer acceptance of downsized concepts it is vital that the low speed torque and transient response are optimized.
Variable Length Intake Manifolds (VLIM) have long been an established method of improving the full load performance of naturally aspirated engines. The manifold length being “tuned” to provide a high-pressure pulse at intake valve closing to maximize cylinder filling and deliver improved performance. This same approach could be applied to turbocharged engines to improve low speed torque and transient response.
This paper investigates the affects of VLIM technology applied to a 1.4-litre turbocharged gasoline direct injection engine. It demonstrates improvements in low speed torque and transient response achieved through tuning. It also investigates the tuning options available at high speed on a turbocharged engine and demonstrates the fuel consumption benefits that can be achieved through varying manifold runner length.
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Citation
Taylor, J., Gurney, D., Freeland, P., Dingelstadt, R. et al., "Intake Manifold Length Effects on Turbocharged Gasoline Downsizing Engine Performance and Fuel Economy," SAE Technical Paper 2012-01-0714, 2012, https://doi.org/10.4271/2012-01-0714.Also In
References
- Louis, J. “Well-to-Wheel Energy Use and Greenhouse Gas Emissions for Various Vehicle Technologies,” SAE Technical Paper 2001-01-1343 2001 10.4271/2001-01-1343
- Bandivadekar, Anup et. Al. “On the Road in 2035 - Reducing Transportation's Petroleum Consumption and GHG Emissions” Report Laboratory for Energy and the Environment Massachusetts Institute of Technology July 2008
- Winterbone, D.E. “Advanced thermodynamics for engineers” Arnold London 0 470 23718 X
- Heisler, H. “Advanced Engine Technology” 1995
- Broome, D. “Induction Ram” Auto. Engineer 1969
- Winterbone, D. Pearson, R. “Theory of Engine Manifold Design” Professional Engineering Publishing 2000
- Bassett, M.D et al. “Simulating the effect of gas dynamic phenomena on the performance of internal combustion engines” European Automotive Congress Bratislava 2001
- Stone, C. Etminan, Y. “Review of Induction System Design and a Comparison Between Prediction and Results from a Single Cylinder Diesel Engine,” SAE Technical Paper 921727 1992 10.4271/921727
- Turner, J. Bassett, M. Pearson, R. Pitcher, G. et al. “New Operating Strategies Afforded by Fully Variable Valve Trains,” SAE Technical Paper 2004-01-1386 2004 10.4271/2004-01-1386
- Prosser, T.G. “Induction ramming a motored high-speed four-stroke reciprocating engine - influence of inlet port pressure waves on volumetric efficiency” Proc. I. Mech. E 180 1974
- Matthews, R. Gardiner, A.W “Increasing the compression pressure in an by using a long intake pipe” NACA Technical Note No. 180 1924
- Boden, R.H Schecter, H. “Dynamics of the inlet system of a four-stroke engine” NACA Technical Note No. 935 1944
- Blair, G. Mackey, D. Ashe, M. Chatfield, G. “Exhaust Tuning on a Four-Stroke Engine; Experimentation and Simulation,” SAE Technical Paper 2001-01-1797 2001 10.4271/2001-01-1797
- Pearson, R. “Exhaust System Gas-Dynamics In Internal Combustion Engines” ASME Paper no. ICES2006-1444
- Crawford, A. Ellis, G. Fraser, N. Steeples, B. et al. “Combining High Performance with Euro IV Capability in a Naturally Aspirated Production Engine,” SAE Technical Paper 2002-01-0335 2002 10.4271/2002-01-0335
- Hirschfelder, K The First Continuously Variable Intake System in the New Eight-Cylinder Engine from BMW MTZ Worldwide Edition 2002 03
- Matsumoto, I. Ohata, A. “Variable Induction Systems to Improve Volumetric Efficiency at Low and/or Medium Engine Speeds,” SAE Technical Paper 860100 1986 10.4271/860100
- Cser, G. “Double Resonance System - a new way to improve the low-speed operation of supercharged engines” C405/013 IMechE 1990
- Gurney, D. “The Design of Turbocharged Engines Using 1D Simulation,” SAE Technical Paper 2001-01-0576 2001 10.4271/2001-01-0576
- Dr.-Ing. Ludwig Theilemann. “Die Expansionsaufladetechnik des neuen Porsche 911 GT2” Wege zur Höchstleistung
- Winterbone, D. Pearson, R. “Design Techniques for Engine Manifolds” Professional Engineering Publishing 1999
- Hancock, D. Fraser, N. Jeremy, M. Sykes, R. et al. “A New 3 Cylinder 1.21 Advanced Downsizing Technology Demonstrator Engine,” SAE Technical Paper 2008-01-0611 2008 10.4271/2008-01-0611
- Lumsden, G. OudeNijeweme, D. Fraser, N. Blaxill, H. “Development of a Turbocharged Direct Injection Downsizing Demonstrator Engine,” SAE Int. J. Engines 2 1 1420 1432 2009 10.4271/2009-01-1503
- Fraser, N. et al “MAHLE - Bosch Advanced Downsizing Demonstrator Vehicle” 19th Aachen Motorenkolloquium 2010
- King, J. Downing, J. “Fuel System Investigation and Performance Development of a Prototype V6 Gasoline Direct Injection Engine,” SAE Technical Paper 2002-01-0704 2002 10.4271/2002-01-0704