Combustion – Combustion bursts or flare-ups in pulses or serial pattern
Patent
1990-03-20
1992-06-02
Price, Carl D.
Combustion
Combustion bursts or flare-ups in pulses or serial pattern
431 75, 431 79, 60247, F23C 1104
Patent
active
051182815
ABSTRACT:
In a method and apparatus for controlling total ignition delay time in a pulse combustor, and thus controlling the mixing characteristics of the combustion reactants and the combustion products in the combustor, the total ignition delay time is controlled by adjusting the inlet geometry of the inlet to the combustion chamber. The inlet geometry may be fixed or variable for controlling the mixing characteristics. A feedback loop may be employed to sense actual combustion characteristics, and, in response to the sensed combustion characteristics, the inlet geometry may be varied to obtain the total ignition delay time necessary to achieve the desired combustion characteristics. Various embodiments relate to the varying of the mass flow rate of reactants while holding the radius/velocity ratio constant.
REFERENCES:
patent: 4472132 (1984-09-01), Hisaoka et al.
patent: 4474547 (1984-10-01), Drexel et al.
patent: 4640674 (1987-02-01), Kitchen
patent: 4645448 (1987-02-01), Otto et al.
patent: 4721458 (1988-01-01), Conrad
patent: 4909731 (1990-03-01), Zinn et al.
patent: 4929172 (1990-05-01), Zinn et al.
T. Bramlette, "The Role of Fluid Dynamic Mixing in Pulse Combustors", Sandia National Laboratories Report, SAND 87-8622, Apr., 1987.
J. Keller et al., "Response of a Pulse Combustor to Changes in Fuel Compositions", 21st Symposium (International) on Combustion, The Combustion Institute, at Munich, West Germany, Aug. 3-8, 1986, Sandia National Laboratory Report SAND 86-8631 and Proceedings of the 21st Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, Pa., 1987, pp. 547-555.
J. Keller et al., "Measurements of the Combusting Flow in a Pulse Combustor", Combustion Science and Technology, vol. 53, 1987, pp. 137-163.
J. Keller et al., "Pulse Combustion: The Importance of Characteristic Times", Sandia National Laboratories Report SAND 87-8783, Jul. 1987.
J. Keller et al., "Pulse Combustion: The Quantification of Characteristic Times", Sandia National Laboratories Report SAND 87-8832, Mar. 1988.
Bramlette T. Tazwell
Keller Jay O.
Chafin James H.
Daniel Anne D.
Moser William R.
Price Carl D.
The United States of America as represented by the United States
LandOfFree
Method and apparatus for the control of fluid dynamic mixing in does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for the control of fluid dynamic mixing in , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the control of fluid dynamic mixing in will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2225650