This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Pressure Compounding a Four Cycle Diesel Engine
Annotation ability available
Sector:
Language:
English
Abstract
A computer simulation program was used to explore the concept of pressure compounding and turbopressure compounding a four-cycle diesel engine. Pressure compounding is a refinement of the Miller Cycle. Ralph Miller used early intake valve closing to reduce the peak compression temperatures of large natural gas engines, allowing them to operate at higher compression ratios without detonation. To maintain the same air flow, the inlet charge is boosted to compensate for the reduced inlet duration. Analysis demonstrates the shorter inlet event duration with the same mass flow results in added positive work during the inlet stroke. The overall result is a predicted 5% to 7% improvement in overall performance, depending upon the efficiency of the turbomachinery and the energy in the engine exhaust.
Recommended Content
Topic
Citation
Chute, R., "Pressure Compounding a Four Cycle Diesel Engine," SAE Technical Paper 851520, 1985, https://doi.org/10.4271/851520.Also In
References
- Miller R. H. “Supercharging and Internal Cooling for High Output Transactions,” ASME 69-1947 453 457
- Brinson, L. “High Performance Gas Burning Engines.” CIMAC Congress 1965
- Kamata, M. Komami, Y. Nakayama, T. Sakai, H. Kanesaka, H. “A New Type of Miller Cycle Gasoline Engine.” JSAE Review July 1983
- Meier, E. “The Miller System - A Possible Solution to Present Problems with Highly Charged Four Stroke Engines.” Brown Boveri Review 4-77 235 242
- Miller, R.H. “Nordberg Supairthernial Diesel, Dual Fuel and Gas Engines Operating on the Miller Supercharging System,” ASME petroleum Division Conference Tulsa, Oklahoma September 24-26 1951
- Miller, R.H. “A Low Temperature Supercharging System for Compression, Pilot Oil and Spark Ignition Engines,” ASME Paper #57-A-250