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公开(公告)号：JPH11257665A
公开(公告)日：1999-09-21
申请号：JP37287298
申请日：1998-12-28
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HOKE JAMES B , SEGALMAN IRVING , SISKIND KENNETH S , SMITH REID D C , STURGESS GEOFFREY J
Abstract: PROBLEM TO BE SOLVED: To contribute to the reduction of discharging of NOx in a gas turbine engine by a method wherein the air stream of a specified amount is introduced from the air port of a combustor at the downstream of a dome by a specified distance into a fuel air spray pattern. SOLUTION: A combustion chamber 6 is provided with side walls 7, 8, connected to a dome or an end surface 9, so as to form a slender and annular combustion chamber 11. Fuel and a first specified amount of air stream are injected into the combustion chamber 6 to form uniformly distributed fuel air spray pattern, flowing at the downstream of the combustion chamber 6 and mixed so as to contain highly rich fuel. A second specified amount of air stream is introduced from the dome 9 into the fuel air spray pattern through the air port 17 of a combustor at the downstream of the dome 9 by a first specified distance. In this case, the first specified distance is 0.75 times of the height of the dome 9 and the second specified amount of air stream is the amount of dilute air enough to cause rapid mixing and quenching of mixture of fuel and air in the mixture of dilute fuel and air.
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公开(公告)号：DE69834621T2
公开(公告)日：2006-10-05
申请号：DE69834621
申请日：1998-12-31
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SEGALMAN IRVING , HOKE JAMES B , SISKIND KENNETH S , STURGESS GEOFFREY J , SMITH REID D C
Abstract: In a method of combusting fuel in the combustion chamber (11) of a gas turbine engine, fuel and a first predetermined amount of air are injected into the combustion chamber to form a fuel-rich mixture, and a second predetermined amount of air is injected downstream, to mix with the mixture and form a lean fuel-air mixture. The combustion chamber (11) has a fuel injector (10) and inlets (17, 19) downstream thereof to allow the air to be injected.
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公开(公告)号：DE69834621D1
公开(公告)日：2006-06-29
申请号：DE69834621
申请日：1998-12-31
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SEGALMAN IRVING , HOKE JAMES B , SISKIND KENNETH S , STURGESS GEOFFREY J , SMITH REID D C
Abstract: In a method of combusting fuel in the combustion chamber (11) of a gas turbine engine, fuel and a first predetermined amount of air are injected into the combustion chamber to form a fuel-rich mixture, and a second predetermined amount of air is injected downstream, to mix with the mixture and form a lean fuel-air mixture. The combustion chamber (11) has a fuel injector (10) and inlets (17, 19) downstream thereof to allow the air to be injected.
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