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Hyperbar System of High Supercharging
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English
Abstract
This paper presents a new concept for very high supercharging of engines. Based on a novel combination of engine and turbocompressor, this concept enables the overall supercharge efficiency to be increased considerably which, taking into account recent advances in the field of gas turbines, can achieve pressure ratios of 9-10 without increasing the exhaust temperature of the engine.
Applied to engines of very low compression ratios (between 5 and 7), this method of supercharging enables continuous operation to be envisaged at a bmep of 35 kg/cm2, without increasing thermal and mechanical loads on the engine and without appreciable degradation of its efficiency.
Test results are presented, applied on a fast engine at 26 kg/cm2 bmep and on an engine of average speed at 30 kg/cm2.
Topic
Citation
Melchior, J. and Andre-Talamon, T., "Hyperbar System of High Supercharging," SAE Technical Paper 740723, 1974, https://doi.org/10.4271/740723.Also In
References
- Morris R. E. Kenny D. P. “High Pressure Ratio Centrifugal Compressors for Small Gas Turbine Engines.” UACL 31st Meeting of Propulsion and Energetics Panel of AGARD Ottawa June 1968
- Erwin J. R. Vitale N. G. “The Radial Outflow Compressor.” ASME Gas Turbine Conference Cleveland March 1969
- “Advanced Compressors.” AGARD Lecture Series June 1970
- “Small Gas Turbines for Helicopters and Surface Transport.” AGARD Lecture Series May 1971
- “5 to 1 Ratio Turbocharger.” Gas and Oil Power Spring 1974 38