Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1991-02-07
1993-08-10
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60738, 60743, 60755, F23R 354
Patent
active
052338258
ABSTRACT:
In order to efficiently atomize a fuel/air mixture to reduce smoke, a fuel injection system (26) for a combustor (12) of a turbine engine (10) includes an air blast tube (16), a fuel supply passage (42), and an impingement surface (30). The air blast tube (16) is mounted in relation to an opening (18) in a wall (20) of the combustor (12) such that a first end (22) of the tube (16) is in communication with the combustor (12) and a second end (24) of the tube (16) is in communication with a source of compressed air externally of the combustor (12) to facilitate the delivery of compressed air from the source into the combustor (12). The fuel supply passage (42) is adapted to deliver fuel to a fuel supply orifice (28) by having a first end (34) in communication with the combustor (12) through the fuel supply orifice (28) and a second end ( 36) in communication with a source of fuel externally of the combustor (12) with the fuel supply orifice (28) being disposed externally of but adjacent to the air blast tube (16). The impingement surface (30) is positioned in the path of fuel discharged from the fuel supply orifice (28) to produce a fuel spray directed into the path of compressed air discharged from the air blast tube (16) at a point externally of the air blast tube (16) for producing an interaction of the fuel spray and compressed air within the combustor (12). With the unique arrangement of the air blast tube (16) and fuel supply passage (42), the fuel injection system (26) is particularly well suited for producing an atomized fuel/air mixture in an efficient smoke-reducing manner.
REFERENCES:
patent: 4018043 (1977-04-01), Clemmens
patent: 4151709 (1979-05-01), Melconian et al.
patent: 5027603 (1991-07-01), Shekleton et al.
Bertsch Richard A.
Sundstrand Corporation
Thorpe Timothy S.
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