公开(公告)号：EP1340942A2

公开(公告)日：2003-09-03

申请号：EP03008697.9

申请日：1998-12-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Synder, Timothy S. ,  Morford, Stephen A. ,  Sowa, William A. ,  Van Dyke, Kevin J.

IPC: F23R3/28 ,  F23R3/12 ,  F23C7/00 ,  F23D17/00

CPC classification number: F23D14/82 ,  F23C7/002 ,  F23C2900/07002 ,  F23D14/74 ,  F23D17/00 ,  F23D17/002 ,  F23D2206/10 ,  F23D2209/10 ,  F23D2209/20 ,  F23R3/12 ,  F23R3/286

Abstract: A tangential entry premixing fuel injector (10) for a gas turbine engine combustor includes a pair of offset scrolls (18) whose ends define a pair of entry slots (36) for admitting primary combustion air tangentially into a mixing chamber (28) bounded by the scrolls (18) and by longitudinally spaced endplates (14,16). An array of fuel injection passages (42) extends along the length of the slots. The passage array is configured to inject a primary fuel nonuniformly along the length of the air entry slots and to control the fuel penetration depth d in proportion to slot height H. The injector also includes a flame disgorging centerbody (48) having a bluff tip (54) longitudinally aligned with the injector's discharge plane (22) and a secondary fuel conduit (80) extending through the centerbody for discharging a secondary combustible fluid, preferably gaseous fuel, through a series of fuel discharge openings (84) in the tip (54). The flame disgorging centerbody improves fuel injector durability by resisting ingestion of combustion flame into the mixing chamber (28) and reliably disgorging any flame that is ingested.

Abstract translation: 切向入口预混合燃料喷射器（10），用于燃气涡轮发动机燃烧器包括用于沿切向接纳主燃烧空气进入由界定的混合室（28），其端部限定的一对进入槽（36）的一对偏置卷轴（18） 涡旋盘（18），并通过纵向隔开的端板（14,16）。 燃料喷射通路阵列（42），沿着所述槽的长度上延伸。 通道阵列被配置为沿所述空气进入槽的长度不均匀地喷射一次燃料，并且控制燃料贯穿深度d成正比槽高度H.因此，该喷射器包括火焰除渣中心体（48）具有钝尖（ 54）与喷射器的排放平面（22）和二次燃料导管（80）穿过所述中心体延伸，用于放电的二次可燃流体，优选气体燃料，通过一系列在尖端燃料排放口（84）的（54纵向对齐 ）。 火焰除渣中心体通过抵抗燃烧火焰吸入到混合腔（28）和可靠除渣任何火焰都被摄入提高燃料喷射器的耐久性。

公开(公告)号：EP1340942B1

公开(公告)日：2005-11-16

申请号：EP03008697.9

申请日：1998-12-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Synder, Timothy S. ,  Morford, Stephen A. ,  Sowa, William A. ,  Van Dyke, Kevin J.

IPC: F23R3/28 ,  F23R3/12 ,  F23C7/00 ,  F23D17/00

CPC classification number: F23D14/82 ,  F23C7/002 ,  F23C2900/07002 ,  F23D14/74 ,  F23D17/00 ,  F23D17/002 ,  F23D2206/10 ,  F23D2209/10 ,  F23D2209/20 ,  F23R3/12 ,  F23R3/286

公开(公告)号：EP1340942A3

公开(公告)日：2003-09-10

申请号：EP03008697.9

申请日：1998-12-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Synder, Timothy S. ,  Morford, Stephen A. ,  Sowa, William A. ,  Van Dyke, Kevin J.

IPC: F23R3/28 ,  F23R3/12 ,  F23C7/00 ,  F23D17/00

CPC classification number: F23D14/82 ,  F23C7/002 ,  F23C2900/07002 ,  F23D14/74 ,  F23D17/00 ,  F23D17/002 ,  F23D2206/10 ,  F23D2209/10 ,  F23D2209/20 ,  F23R3/12 ,  F23R3/286

Abstract: A tangential entry premixing fuel injector (10) for a gas turbine engine combustor includes a pair of offset scrolls (18) whose ends define a pair of entry slots (36) for admitting primary combustion air tangentially into a mixing chamber (28) bounded by the scrolls (18) and by longitudinally spaced endplates (14,16). An array of fuel injection passages (42) extends along the length of the slots. The passage array is configured to inject a primary fuel nonuniformly along the length of the air entry slots and to control the fuel penetration depth d in proportion to slot height H. The injector also includes a flame disgorging centerbody (48) having a bluff tip (54) longitudinally aligned with the injector's discharge plane (22) and a secondary fuel conduit (80) extending through the centerbody for discharging a secondary combustible fluid, preferably gaseous fuel, through a series of fuel discharge openings (84) in the tip (54). The flame disgorging centerbody improves fuel injector durability by resisting ingestion of combustion flame into the mixing chamber (28) and reliably disgorging any flame that is ingested.