Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1992-10-23
1994-01-11
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60737, 60738, 60743, F23R 332, F02C 722
Patent
active
052770222
ABSTRACT:
In order to enhance fuel injection efficiency, and particularly to atomize low fuel flows at high velocity with low fuel pressure, a fuel injection system 24 for a combustor 22 of a turbine engine 20 has an air blast tube 48 and a fuel supply tube 76. The air blast tube 48 is mounted at an acute angle relative to a wall 26 of the combustor 22 and has a first end 50 in communication with the combustor 22 and a second, enlarged end 52 disposed at an acute angle to an axis 54 of the air blast tube 48 in communication with a source of compressed air externally of the wall 26 of the combustor 22. The air blast tube 48 is operable to deliver compressed air from the source into the combustor 22. The fuel supply tube 76 delivers fuel through a fuel supply orifice 58 to a point at or near the first end 50 of the air blast tube 48 and has a first end 60 in communication with the combustor 22 through the fuel supply orifice 58 and a second end 62 in communication with a source of fuel externally of the wall 26 of the combustor 22. With this arrangement, the fuel supply tube 76 extends to a point communicating internally with the air blast tube 48 but adjacent a discharge opening 64 of the air blast tube 48 to produce an enhanced atomized fuel/air mixture thereby.
REFERENCES:
patent: 3099134 (1963-07-01), Calder et al.
patent: 3968644 (1976-07-01), Fehler
patent: 4549402 (1085-10-01), Samtsbury et al.
patent: 4928481 (1990-05-01), Joshi et al.
patent: 4967563 (1990-11-01), Shekleton
Shekleton Jack R.
Sledd Michael W.
Bertsch Richard A.
Sundstrand Corporation
Thorpe Timothy S.
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