Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2005-01-25
2005-01-25
Freay, Charles G. (Department: 3746)
Power plants
Combustion products used as motive fluid
Process
C060S039450
Reexamination Certificate
active
06845620
ABSTRACT:
A rotary ejector enhanced wave rotor pulsed detonation (WRPDE) engine and method are provided. The rotary-ejector-WRPDE includes a housing, one or more inlet ports in the housing, and a rotor mounted within the housing. The rotor includes a plurality of shrouded forward combustion passages in which detonative combustion occurs. Each forward combustion passage has an inlet end for communication with the inlet port. The rotor also includes a plurality of rear combustion passages which are in gaseous communication with the forward combustion passages. The rotor further includes a plurality of transitional combustion passages which join the forward combustion passages to the rear combustion passages and communicate with a source of bypass gas to provide a rotary ejector.
REFERENCES:
patent: 2399394 (1946-04-01), Seippel
patent: 2705867 (1955-04-01), Lewis
patent: 3401676 (1968-09-01), Wanzenberg
patent: 3809020 (1974-10-01), Takitani
patent: 3931553 (1976-01-01), Stich et al.
patent: 4240394 (1980-12-01), Lay
patent: 4500260 (1985-02-01), Mayer et al.
patent: 4646704 (1987-03-01), Gora et al.
patent: 4719746 (1988-01-01), Keller
patent: 4744213 (1988-05-01), El-Nashar
patent: 4860547 (1989-08-01), Maldague
patent: 4887942 (1989-12-01), Hauge
patent: 4924637 (1990-05-01), Ikimi et al.
patent: 5051064 (1991-09-01), Konert
patent: 5154583 (1992-10-01), Althaus
patent: 5197276 (1993-03-01), Keller
patent: 5267432 (1993-12-01), Paxson
patent: 5274994 (1994-01-01), Chyou et al.
patent: 5297384 (1994-03-01), Paxson
patent: 5313785 (1994-05-01), Althaus et al.
patent: 5338158 (1994-08-01), Hauge
patent: 5339635 (1994-08-01), Iwai
patent: 5381653 (1995-01-01), Althaus
patent: 5513489 (1996-05-01), Bussing
patent: 5522217 (1996-06-01), Zauner
patent: 5894719 (1999-04-01), Nalim
patent: 5916125 (1999-06-01), Snyder
patent: 6449939 (2002-09-01), Snyder
patent: 6460342 (2002-10-01), Nalim
patent: WO0068566 (2000-11-01), None
patent: WO 03023203 (2003-03-01), None
Kentfield, J.A.C., “Circumferential Cell-Dividers in Wave-Rotors,” 34th AiAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Cleveland, OH, AIAA98-3397, Jul. 13-15, 1998.
Nalim, N. Razi, “Pulse Combustion and Wave Rotors for High-Speed Propulsion Engines,” 8th International Space Planes annm;d Hypersonic Systems and Technologies Conference, Norfolk, VA, Apr. 27-30, 1998.
Nalim, M. Razi, “Numerical Study of Stratified Charge Combustion in Wave Rotors,” 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Seattle, WA, AIAA-97-3141, Jul. 6-9, 1997.
Bussing, T.R.A., “A Rotary Valve Multiple Pulse Detonation Engine (RVMPDE)”, 31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, San Diego, CA, AIAA95-2577, Jul. 10-12, 1995.
Goldstein, et al., “Ideal Performance of Valved-Combustors and Applicability to Several Engine Types,” Trans. of the American Society of Mechancial Engineers, 80, Jul. 1958, pp. 1027-1036.
Nalim, et al., “A Numerical Investigation of Premized Combustion in Wave Rotors,” 41st Gas Turbine and Aeroengine Congress sponsored by the International Gas Turbine Institute of the American Society of Mehanical Engineers, Birmingham, United Kingdom, Jun. 10-13, 1996.
Berchtold, et al., “Supercharging with Comprex. Application and Experience,” cite unknown.
Comprex, “The Comprex Pressure Wave Supercharger . . . ” Informative advertisement from Comprex AG, CH-5507 Melligen, Switzerland.
Schapker, R.L., “Analysis of a Wave Combustor Designed for Time-Steady Inlet and Discharge Conditions,” AGT—Technical Information Series No. DF58AGT387, Flight Propulsion Laboratory Department, Aircraft Gas Turbine Division, General Electric, Cincinnati, Ohio, Jun., 1958.
Nalim, M.R., “Assesment of Combustion Modes for Internal Combustion Wave Rotors,” Journal of Engineering for Gas Turbines and Power, Apr. 1999, vol. 121, pp. 265-271.
Vickers Catalog, “Comprex, the pressure wave supercharger” advertisement for Model CX 93.
Tabaczynski, R., “Turbulence and Turbulent Combustion in Spark-Ignition Engines” Prog. Energy Combust. Sci., vol. 2, pp. 143-165 (1976).
Biligin, M. et al., “Ignition and Flame Propagation Process with Rotating Hote Jets in a Simulated Wave Engineer Test Cell” 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Cleveland, OH AIAA-98-3399, Jul. 13-15, 1998.
Welch, G., “Wave-Rotor-Enhanced Gas Turbine Engines” Journal of Engineering for Gas Turbines and Power, vol. 119 (Apr. 1997).
Nalim, M.R., “Wave Cycle Design for Wave Rotors Engines with Limited Nitrogen Oxide Emissions” Cornell University, 1994.
Dann Dorfman Herrell & Skillman
Freay Charles G.
Nalim Mohamed Razi
Piper, Jr., Esq. Donald R.
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