Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1996-04-17
1998-07-07
Thorpe, Timothy
Power plants
Combustion products used as motive fluid
Combustion products generator
60757, 60755, F23R 300, F02K 182
Patent
active
057751080
ABSTRACT:
A combustion chamber, particularly for a turbomachine, has at least one generally axially extending wall provided with a plurality of through holes defining a multi-hole cooling system for the wall. The wall also has a plurality of dilution holes which affect locally the flow of burnt gases in the chamber, and the cooling through holes are oriented according to the local flow of burnt gases in the chamber. In particular the wall is subdivided into first zones, downstream of the dilution holes, in which the through holes are oriented substantially in countercurrent to the overall flow direction of the burnt gases in the chamber, second zones and third zones which are disposed on opposite sides of the first zones and in which the orientation of the through holes is inclined both axially and circumferentially, and a fourth zone covering the remainder of the wall and in which the through holes are inclined axially in the overall flow direction of the burnt gases.
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Jurgen Kohler, et al., "Calculation of the Disturbance to Combustion Chamber Film Cooling due to Air injection through a Row of Jets", Zeitschrift Fur Flugwissenschaften Und Weltraumforschung, vol. 9, No. 1, Feb. 1985, (pp. 34-42).
S. J. Stevens, et al., "Experimental Studies of Combustor Dilution Zone Aerodynamics, Part I: Mean Flowfields", Journal of Propulsion and Power, vol.6, No. 3, May 1, 1990, (pp. 297-304).
Ansart Denis Roger Henri
Ciccia Patrick Samuel Andre
Desaulty Michel Andre Albert
Kim Ted
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
Thorpe Timothy
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