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Transient Response of Turbocharged Diesel Engines
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English
Abstract
The problem of highly rated turbocharged diesel engines operating under transient load conditions is now well known, and is due to the inability of the turbocharger to supply sufficient air for good combustion.
In Part 1, two methods are discussed for reducing turbocharger lag-air injection onto the compressor rotor and oil injection onto a small pelton wheel mounted on the turbocharger shaft. Results are given showing the benefit of fitting these devices to an engine on a test bed. Engine response is improved in all respects particularly smoke and overall response time.
In Part 2, a simulation study of a turbocharged diesel engine installed in a 32 tonne truck is presented to investigate the engine performance during load and speed changes. It is shown that by injecting compressed air on to the turbocharger compressor rotor tip, smoke emissions from the engine during load changes are reduced. The size of air compressor and receiver required for air injection is the same order as for a conventional truck air braking system. Some preliminary engine tests on a computer-controlled test bed confirm the simulation modelling and results.
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Authors
- D. E. Winterbone - The University of Manchester Institute of Science and Technology (United Kingdom)
- R. S. Benson - The University of Manchester Institute of Science and Technology (United Kingdom)
- A. G. Mortimer - The University of Manchester Institute of Science and Technology (United Kingdom)
- P. Kenyon - The University of Manchester Institute of Science and Technology (United Kingdom)
- A. Stotter
Topic
Citation
Winterbone, D., Benson, R., Mortimer, A., Kenyon, P. et al., "Transient Response of Turbocharged Diesel Engines," SAE Technical Paper 770122, 1977, https://doi.org/10.4271/770122.Also In
References
- Benson R.S. Mortimer A.G. Stotter A. Winterbone D.E. “Transient response of turbocharged diesel engines. Part II Application to a Heavy truck: a study of the dynamic performance of the engine” 1977 SAE Automotive Engineering Congress Detroit 28 Feb 4 Mar
- Marzouk M. Watson N. “Some problems in diesel engine research with special reference to computer control and data acquisition” Proc. Instn. Mech. Engrs. 190 23 76 137 151 1976
- Winterbone D.E. Benson R.S. Closs G.D. Mortimer A.G. “A comparison between experimental and analytical transient test results for a turbocharged diesel engine” I.Mech.E. 1976
- Benson R.S. Winterbone D.E. Shamsi S.S. “A real-time analogue computer simulation of turbocharged diesel engine” ASME Paper No. 76-WA/DGP-1 1976
- Bowns D.E. Cave P.R. Hargreaves M.O. Wallace F.J. “Transient characteristics of turbocharged diesel engines” Conference on ‘Engine performance modelling’ Instn. Mech. Engrs. London 1973
- Timoney S.G. “High pressure turbocharging of two stroke engines” Paper 690747 SAE National Powerplant Meeting Cleveland, Ohio October 1969
- Benson R.S. “Performance characteristics of radial gas turbines” UMIST computer program package 1973
- Benson R.S. Fisher A.J. Ledger J.D. Munro N. “Design and testing of a controller for a turbocharged diesel engine with air injection” I.Mech.E. 1976
- Benson R.S. Pick R. “Recent advances in internal combustion engine instrumentation with particular reference to high speed data acquisition and automated test bed” Paper 740695 SAE Conference (Engine Testing Session) Milwaukee 1974
- Ledger J.D. Benson R.S. Furukawa H. “Improvement in transient performance of a turbocharged diesel engine by air injection into the compressor” Paper 730665 SAE Combined Commercial Vehicle Engineering and Operations and Powerplant Meetings Chicago June 18-22 1973
- Ledger J.D. Walmsley S. “Computer Simulation of a Turbocharged Diesel Engine Operating Under Transient Load Conditions.” Paper 710177 presented at S.A.E. Automotive Engineering Congress Detroit Jan. 1971
- Ledger J.D. Benson R.S. Whitehouse N.D. “Dynamic Modelling of a Turbocharged Diesel Engine.” I.Mech.E. Conference on Engine Performance Modelling London May 1972
- Ledger J.D. Benson R.S. Furukawa H. “Improvement in Transient Performance of a Turbocharged Diesel Engine by Air Injection into the Compressor.” Paper 730665 S.A.E. National Powerplant Meeting Chicago June 1973
- Benson R.S. Ledger J.D. Whitehouse N.D. Walmsley S. “Comparison of Experimental and Simulated Transient Responses of a Turbocharged Diesel Engine.” Paper 730668 S.A.E. National Powerplant Meeting Chicago June 1973
- Ledger J.D. Benson R.S. Furukawa H. “Performance Characteristics of a Centrifugal Compressor with Air Injection.” Proc. I.Mech.E. 187 35 73 425 434
- Winterbone D.E. Benson R.S. Shamsi S.S. “A Real-Time Analogue Computer Simulation of a Turbocharged Diesel Engine.” ASME Paper 76-WA/DGP-1 1976
- Winterbone D.E. Benson R.S. Closs G.D. Mortimer A.G. “A Comparison Between Experimental and Analytical Transient Test Results for a Turbocharged Diesel Engine.” I.Mech.E.
- Benson R.S. Fisher A.J. Ledger J.D. Munro N. “Design and Testing of a Controller for a Turbocharged Diesel Engine with Air Injection.” I.Mech.E.
- Winterbone D.E. Benson R.S. “Transient Response of Turbocharged Diesel Engines - Part I: A Comparison of Two Methods of Improving Response.” 1977 S.A.E. Automotive Engineering Congress Detroit 28 Feb 4 Mar
- Benson R.S. Pick R. “Recent Advances in I.C. Engine Instrumentation with Particular Reference to High Speed Data Acquisition and Automated Test Bed.” Paper 740695 S.A.E. Conference (Engine Testing Session) Milwaukee 1974
- Slevin M. “A Control System for Turbocharger Auxiliary Energy.” M.Eng.Sc. Thesis National University of Ireland Dublin 1973
- Myers P.S. “The Diesel Engine for Truck Application.” S.A.E. Paper No. 750128 1975
- Smith G.L. “Commercial Vehicle Performance and Fuel Economy.” S.A.E. Paper No. 700194 1970
- O'Neill G. “Measurement and Prediction of Exhaust Smoke of a Turbocharged Diesel Engine.” M.Sc. Thesis UMIST. 1974