This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
UPS Multifuel Stratified Charge Engine Development Program-Field Test
Annotation ability available
Sector:
Language:
English
Abstract
The multifuel, stratified charge engine program launched by United Parcel Service in 1978 has progressed through two years of field tests.
The mechanical and electronic experience with the field test engine is covered in detail, with problems and causes identified and solutions described.
Also included are reports on research initiated as a consequence of problems that appeared in the field test engines.
All aspects of engine performance are covered, including fuel economy, multifuel experience, emissions testing and tuning, maintenance expectations and driver reactions.
The original 350-engine field test was run with many components newly designed or modified, and relatively untested. Component and reliability problems identified in the field test have prompted modifications, and the engines are being reworked for the start of a new 200-engine field test.
Research studies conducted on the field test engine have produced very encouraging emissions data, which suggests that the low-load hydrocarbon problem historically associated with this technology is not a barrier to commercial application. The engine appears capable of passing the heavy duty gasoline engine transient test.
And throughout all of the field tests the engine has maintained its exceptional reputation as a fuel efficient power plant, it has consistently produced fuel economy improvements of 30 to 35 percent when compared with the unmodified version of this 292-cubic-inch engine.
The engine also has confirmed beyond all doubt its capacity to burn all petroleum distillates between the range of gasoline and diesel fuel, as well as alcohol.
A broad range of research and government reports identify this engine technology as among the most promising of alternatives to existing power plants.
Rapid progress in refining this technology, however, will not ensure that the considerable benefits of this type of engine are made available to users. A radically different environment exists today than was present in the fuel-short era when this project was started.
Eventual employment of this technology to its full advantage appears to depend upon government policy, which now recognizes only engines that burn gasoline or diesel fuel. There are no emissions tests for an engine that can, for instance, run on natural gas pipeline condensate.
Recommended Content
Topic
Citation
Lewis, J., "UPS Multifuel Stratified Charge Engine Development Program-Field Test," SAE Technical Paper 860067, 1986, https://doi.org/10.4271/860067.Also In
References
- Aerospace Corporation, El Segundo, California “Current Status of Alternative Automotive Power Systems and Fuels,” U.S. Environmental Protection Agency Aerospace Report No. ATR-74 (7325)-1 July 1974
- Aiperstein M. Schafer G.H. Villforth RJ. III “Tex-aco's Stratified Charge Engine-Muitifuei, Efficient, Ciean and Practical,” SAE Paper 740563 May 1974
- Balles E.N. Ekchian J.A. Heywood J.B. “Fuel Injection Characteristics and Combustion Behavior of a Direct Injection Stratified Charge Engine,” SAE Paper 84139 October 1958
- Canup R.E. “The Texaco Ignition System-A New Concept for Automotive Engines,” SAE Paper 750347 February 1975
- Coppoc W.J. “Texaco Controlled-Combustion System Provides an Engine with Clean Exhaust and Good Fuel Economy,” Swedish Engineering Society Stockholm. Sweden March 1973
- Covey R.R. Roessler W.U. “Assessment of the Texaco Controlled - Combustion System For Use In Light and Medium Duty Vehicles,” Aerospace Report No. ATR-82 (3869)-4ND November 1982
- Eng K.D. “An Engine Concept For A Viable Transition Into The Future,” Presented at The Society of Petroleum Engineers 1982 Eastern Regional Meeting Washington, D.C. November 1982
- Environmental Protection Agency. Ann Arbor, Michigan “Evaluation of the Texaco Stratified Charge (TCCS) M-151 Army Vehicle,” Report 73-27 DWP June 1973
- Giovanetti Anthony J. Ekchian Jack A. Heywood John B. “Analysis of Hydrocarbon Emissions Mechanisms in a Direct injection Spark-Ignition Engine” SAE Paper 830587 March 1983
- Gompf H.L. “Evaluation of the Texaco Stratified Charge (TCP) M-151 Army Vehicle,” Environmental Protection Agency Ann Arbor, Michigan Report 73-3 August 1972
- Hirakj H. Rife J. “Performances and NOx Model of a Direct Injection Stratified Charge Engine,” SAE Paper 800050 February 1980 SAE Transactions 89 1980
- Jain B.C. Rife J.M. Keck J.C. “A Performance Model for the Texaco Controlied Combustion Stratified Charge Engine,” SAE Paper 760116 February 1976 SAE Transactions 85 1976
- Lewis J.M. “United Parcel Service Applies Texaco Stratified Charge Engine Technology to Power Parcel Delivery Vans - Progress Report,” SAE Paper 801429 November 1980 SAE Transactions 89 1981
- Lewis J.M. McBride T.K. “UPS Muitifuei Stratified Charge Engine Development Progress Report,” SAE Paper 831782 November 1983 SAE Transactions 92 1984
- Mitcheli E. Aiperstein M. Cobb J.M. Faist C.H. “A Stratified Charge Muitifuei Military Engine -A Progress Report,” SAE Paper 720051 January 1972
- Mitchell E. “Texaco Controlled-Combustion System-Multifuei, Efficient, Clean and Practical,” Combustion Science and Technology, Vol. 8, Gordon and Breach Science Publishers, Ltd. The United Kingdom 1973
- Mitchell E. Cobb J.M. Frost R.A. “Design and Evaluation of a Stratified Charge Muitifuei Military Engine,” SAE Paper 680042 January 1968
- Miyake M. “Developing a New Stratified Charge Combustion System with Fuel Injection for Reducing Exhaust Emissions in Small Farm and Industrial Engines,” SAE Paper 720196 January 1972
- Ricardo and Company Engineers (1927), Ltd., Bridgeworks. Shoreham-By-Sea. Sussex, England BN4 5FG “A Study of Stratified Charge For Light Duty Power Plants,” EPA-4601 374-011 A October 1975
- Solomon A. S.P. “A Photographic Study of Fuel Spray ignition in a Rapid Compression Machine” SAE Paper 860065 February 1986
- Thomas R.L. Cornell Jack J. “Transportation Fuels and Engines for Optimum Energy Utilization” Department of Energy August 1985
- Tierney W.T. Mitchell E. Aiperstein M. “The Texaco Controlled-Combustion System - A Stratified Charge Engine Concept ∼ Review and Current Status,” Presented at The Institution of Mechanical Engineers Power Plants and Future Fuels Conference London, England January 1975