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公开(公告)号：US5634328A
公开(公告)日：1997-06-03
申请号：US561335
申请日：1995-11-21
IPC分类号： F23R3/34
CPC分类号： F23R3/34
摘要： A method of supplying fuel to a combustion chamber of a turbojet engine having a low power head with a plurality of low power fuel injectors and a high power head having a plurality of high power fuel injectors is disclosed in which fuel is supplied to the plurality of low power fuel injectors during low power operation of the engine, fuel is supplied to a first fuel circuit in the plurality of high power fuel injectors during high power operation of the turbojet engine and fuel is also supplied to a second fuel circuit in the plurality of high power fuel injectors during low power operation of the turbojet engine, the second fuel circuit being separate from the first fuel circuit. This method of supplying fuel to the dual head combustion chamber optimizes operation of the combustion chamber in all modes of engine operation.
摘要翻译： 公开了一种向具有多个低功率燃料喷射器的低功率头的涡轮喷气发动机的燃烧室供给燃料的方法和具有多个高功率燃料喷射器的高功率头，其中向多个 在发动机的低功率运行期间，低功率燃料喷射器在涡轮喷气发动机的高功率操作期间向多个大功率燃料喷射器中的第一燃料回路供应燃料，并且燃料也被供给到多个涡轮喷气发动机中的第二燃料回路 所述高功率燃料喷射器在所述涡轮喷气发动机的低功率运行期间，所述第二燃料回路与所述第一燃料回路分离。 这种向双头燃烧室供应燃料的方法优化了在所有发动机运行模式下燃烧室的运行。
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公开(公告)号：US5598697A
公开(公告)日：1997-02-04
申请号：US505633
申请日：1995-07-21
IPC分类号： F23R3/00
CPC分类号： F23R3/002 , F05B2260/201 , F05B2260/202 , F05B2260/222
摘要： A wall structure for a wall bounding a combustion chamber of a gas turbine engine is disclosed having a first wall with an inner surface facing towards the interior of the combustion chamber and an outer surface facing away from the interior of the combustion chamber such that the inner surface forms a boundary of the combustion chamber and the outer surface has a surface roughness to prevent the formation of a fluid flow cooling layer which would cool the outer surface. The invention also has a second wall spaced from the outer surface of the first wall in a direction away from the interior of the combustion chamber so as to define a cooling fluid circulatory space between the first and second walls. A plurality of first perforations extend through the first wall in communication with the cooling fluid circulatory space to enable passage of cooling fluid from the space through the first perforations to form a cooling fluid film on the inner surface of the first wall.
摘要翻译： 公开了一种用于限定燃气涡轮发动机的燃烧室的壁的壁结构，其具有面向燃烧室内部的内表面的第一壁和远离燃烧室内部的外表面， 表面形成燃烧室的边界，并且外表面具有表面粗糙度，以防止形成冷却外表面的流体流动冷却层。 本发明还具有在远离燃烧室内部的方向上与第一壁的外表面隔开的第二壁，以便限定第一和第二壁之间的冷却流体循环空间。 多个第一穿孔延伸穿过与冷却流体循环空间连通的第一壁，以使冷却流体能够从空间通过第一穿孔，以在第一壁的内表面上形成冷却流体膜。
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公开(公告)号：US5341645A
公开(公告)日：1994-08-30
申请号：US44388
申请日：1993-04-08
CPC分类号： F23R3/20 , F23R3/30 , F23D2900/11001
摘要： A fuel/oxidizer pre-mixing combustion chamber for a turbojet engine is disclosed in which the pre-mixing device is incorporated into the upstream end wall structure of the combustion chamber. The upstream end portion of the combustion chamber, which is in communication with the oxidizer, has a plurality of generally radially extending, "V"-shaped members oriented such that the vertex of the "V" shape faces in an upstream direction. These members extend generally radially between the inner and outer walls which define the boundaries of the combustion chamber. The members define upstream edges and downstream edges which are axially the upstream edges. Fuel injectors extend radially inwardly between these members and are axially positioned between the locations of the upstream and downstream edges so as to spray fuel onto the adjacent sides of each of the members. The downstream edges of the members are circumferentially spaced apart so as to define a passage which is in communication with the oxidizer source and the combustion chamber.
摘要翻译： 公开了一种用于涡轮喷气发动机的燃料/氧化剂预混合燃烧室，其中预混合装置结合到燃烧室的上游端壁结构中。 与氧化剂连通的燃烧室的上游端部具有多个大致径向延伸的“V”形构件，其定向为使得“V”形顶点朝向上游方向。 这些构件在限定燃烧室的边界的内壁和外壁之间大致径向地延伸。 这些构件限定了沿着上游边缘的上游边缘和下游边缘。 燃料喷射器在这些构件之间径向向内延伸并且轴向地定位在上游和下游边缘的位置之间，以便将燃料喷射到每个构件的相邻侧面上。 构件的下游边缘周向间隔开，以便限定与氧化剂源和燃烧室连通的通道。
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4.发明授权
公开(公告)号：US5285630A
公开(公告)日：1994-02-15
申请号：US978819
申请日：1992-11-19
CPC分类号： F23R3/26 , F23R3/04 , Y02T50/675
摘要： A system for reducing nitrogen oxide emissions from a gas turbine engine is disclosed in which a portion of air in the air compressor is tapped and supplied to an inlet which introduces at least a portion of the tapped air into the primary zone of the combustion chamber. A control device is disposed between the tap and the inlet to control the air flow passing to the inlet. The inlet is located so as to inject the tapped air into the combustion chamber primary zone at the intersection of adjacent fuel sprays. The control device, which may be an adjustable flap valve or a three-way valve, may also be operatively connected to the throttle control for the gas turbine engine such that the control allows the maximum amount of air to pass into the combustion chamber under full power conditions. The control device is preferably mounted outside the engine casing enclosing the combustion chamber to allow easy access for assembly and maintenance.
摘要翻译： 本发明涉及一种涡轮发动机，其包括由相同空气流连续进给的压缩机（1），燃烧室（2）和涡轮机（3），并且还包括适于减少所述氮气氧化物形成的装置 燃烧室。 该装置包括用于取出由压缩机（1）输送的空气的一部分的装置（9a，9b），用于引入在从两个相邻碗排出的燃料锥体的交点处获取的一部分空气的装置（21） 以及用于控制作为发动机转速的函数的在燃料圆锥的交点处引入的空气流的控制装置（10）。
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5.发明授权
公开(公告)号：US5351475A
公开(公告)日：1994-10-04
申请号：US136263
申请日：1993-10-15
摘要： A fuel injection system is disclosed which incorporates a plurality of bowl or shroud members extending upstream of an end wall of the combustion chamber between the end wall and an air swirler in which the shroud member has an end joined with the end wall of the combustion chamber having a substantially elongated elliptical cross-sectional configuration. The end wall of the combustion chamber defines an elliptical shaped opening corresponding to the shape of the end of the shroud or bowl member to enable the fuel/air mixture to be atomized as it enters the combustion chamber. The bowl or shroud member may also define a plurality of openings to enable additional air to be mixed with atomized fuel cone.
摘要翻译： 公开了一种燃料喷射系统，其包括在端壁和空气旋流器之间延伸的燃烧室的端壁的上游延伸的多个碗或护罩构件，其中护罩构件具有与燃烧室的端壁连接的端部 具有基本上细长的椭圆形横截面构造。 燃烧室的端壁限定对应于护罩或碗构件的端部的形状的椭圆形开口，以使燃料/空气混合物在进入燃烧室时被雾化。 碗或护罩构件还可以限定多个开口，以使额外的空气与雾化的燃料锥体混合。
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公开(公告)号：US5311743A
公开(公告)日：1994-05-17
申请号：US059752
申请日：1993-05-12
IPC分类号： F23R3/34
CPC分类号： F23R3/34
摘要： A gas separation assembly for a gas turbine engine combustion chamber is disclosed having spaced apart partition walls which extend through an end of the combustion chamber so as to define an oxidizer chamber which communicates with a source of oxidizer. Downstream ends of the spaced apart partition walls within the combustion chamber are interconnected to a plurality of generally "V" shaped spacers oriented such that the apex of the "V" configuration faces toward the end of the combustion chamber. Downstream edges of the partition walls are notched, also in a "V" shaped configuration such that the notches extend between opposite legs of the spacers. The spacers are circumferentially spaced apart so as to define passageways which communicate with the oxidizer chamber to enable oxidizer to pass through the gas separation assembly into the combustion chamber. The notches in the downstream edges of the partition walls form a series of generally radially extending flues to facilitate heat transfer between the combustion zones by convection. The design also eliminates the hot spots of the known prior art separation assemblies.
摘要翻译： 公开了一种用于燃气涡轮发动机燃烧室的气体分离组件，其具有间隔开的分隔壁，其延伸穿过燃烧室的端部，以便限定与氧化剂源连通的氧化器室。 在燃烧室内的间隔开的分隔壁的下游端部与多个大体上为“V”形的间隔物相互连接，使得“V”构型的顶点朝向燃烧室的端部。 分隔壁的下游边缘也是“V”形构造的凹口，使得凹口在间隔物的相对腿之间延伸。 间隔件沿周向间隔开，以便限定与氧化器室连通的通道，以使氧化剂能够通过气体分离组件进入燃烧室。 分隔壁的下游边缘中的凹口形成一系列通常径向延伸的通道，以便于通过对流在燃烧区域之间的热传递。 该设计还消除了已知现有技术的分离组件的热点。
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公开(公告)号：US5592819A
公开(公告)日：1997-01-14
申请号：US400574
申请日：1995-03-08
申请人： Denis R. H. Ansart , Patrice A. Commaret , Etienne S. R. David , Michel A. A. Desaulty , Bruno M. M. Quinquenneau , Denis Sandelis
发明人： Denis R. H. Ansart , Patrice A. Commaret , Etienne S. R. David , Michel A. A. Desaulty , Bruno M. M. Quinquenneau , Denis Sandelis
CPC分类号： F23R3/12 , F23R3/286 , F23R3/32 , Y02T50/675
摘要： A pre-mixing injection system to feed a fuel/air mixture to a combustion zone in a turbojet engine combustion chamber is disclosed having a pre-mixing tube defining a convergent pre-mixing zone and a diverging intermediate zone between the fuel and air injection devices, and the combustion zone of the combustion chamber. The convergent pre-mixing zone has an inlet adjacent to the fuel injector and air swirlers to accept the fuel/air mixture into the pre-mixing tube. The pre-mixing zone converges in a direction from the inlet to an outlet which is in communication with the inlet of the divergent intermediate zone. The divergent intermediate zone has an outlet which is, in turn, in communication with the combustion zone of the turbojet engine combustion chamber. The divergent intermediate zone is defined by an inner wall and an outer wall spaced from the inner wall so as to define a generally frusto-conical chamber between them. The outer wall has a plurality of cooling holes to enable cooling air to pass through the outer wall into cooling contact with the inner wall. The frusto-conical chamber has a downstream evacuation passage to allow cooling air to pass from the frusto-conical chamber.
摘要翻译： 公开了一种用于将燃料/空气混合物供给到涡轮喷气发动机燃烧室中的燃烧区域的预混合喷射系统，其具有限定会聚预混合区域的预混合管和燃料和空气喷射装置之间的发散中间区域 和燃烧室的燃烧区域。 会聚预混合区域具有与燃料喷射器相邻的入口和空气旋流器以将燃料/空气混合物接收到预混合管中。 预混合区在从入口到与发散中间区的入口连通的出口的方向会聚。 发散中间区域具有出口，该出口又与涡轮喷气发动机燃烧室的燃烧区域连通。 发散中间区由内壁和与内壁隔开的外壁限定，以便在它们之间限定一个大致截头圆锥形的室。 外壁具有多个冷却孔，以使冷却空气能够通过外壁与内壁冷却接触。 截头圆锥室具有下游排气通道，以允许冷却空气从截头圆锥室通过。
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公开(公告)号：US5560197A
公开(公告)日：1996-10-01
申请号：US533277
申请日：1995-09-25
CPC分类号： F16B5/065 , F02K1/822 , F23R3/002 , Y02T50/675
摘要： An arrangement for removably fixing a thermal protection tile on the inside of a combustion chamber wall is described. In one form the tile is provided with a fixing stud which is arranged to pass through a hole in the wall, and a split washer is inserted under the head of the stud to lock the assembly to the wall. In another form the tile is provided with a fixing stud having a head which is arranged to be inserted in a socket welded to the inner surface of the wall and which is locked in place by a stop inserted through a hole in the wall to abut the edge of the head and prevent its removal from the socket.
摘要翻译： 描述了用于可拆卸地将热保护砖固定在燃烧室壁的内部的装置。 在一种形式中，瓦片设置有固定螺柱，其被布置成穿过壁中的孔，并且分离式垫圈插入在螺柱的头部下方以将组件锁定到壁上。 在另一种形式中，瓦片设置有固定螺柱，其具有头部，该头部被布置成插入到焊接到壁的内表面的插座中，并且通过插入壁中的孔的止动件锁定在适当的位置， 头部边缘，防止从插座上拆下。
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公开(公告)号：US5501071A
公开(公告)日：1996-03-26
申请号：US361587
申请日：1994-12-22
CPC分类号： F16B5/065 , F02K1/822 , F23R3/002 , Y02T50/675
摘要： An arrangement for removably fixing a thermal protection tile on the inside of a combustion chamber wall is described. In one form the tile is provided with a fixing stud which is arranged to pass through a hole in the wall, and a split washer is inserted under the head of the stud to lock the assembly to the wall. In another form the tile is provided with a fixing stud having a head which is arranged to be inserted in a socket welded to the inner surface of the wall and which is locked in place by a stop inserted through a hole in the wall to abut the edge of the head and prevent its removal from the socket.
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公开(公告)号：US5499499A
公开(公告)日：1996-03-19
申请号：US316338
申请日：1994-09-30
CPC分类号： F23R3/002 , F05B2260/201 , Y02T50/675
摘要： A cladded combustion chamber construction is disclosed in which the cladd tiles can be assembled and replaced without the necessity of disassembling the structural wall of the combustion chamber. The combustion chamber has a generally cylindrical wall with external and internal surfaces bounding the combustion chamber and has a plurality of cladding tiles located on one of the external and internal surfaces of the wall. To attach the cladding tiles to the combustion chamber structure, a plurality of channel shaped attaching devices are utilized extending in a generally circumferential direction around the wall of the combustion chamber and having a portion extending generally parallel to the wall, but spaced from the wall. The portion extending parallel to the wall of the combustion chamber has a circumferentially extending cut out portion whose circumferential length is slightly greater than the width of a cladding tile. The channel shaped attaching devices are spaced axially along the wall of the combustion chamber and are spaced apart a distance slightly greater than a length of a cladding tile. In order to attach the cladding tile to the combustion chamber wall, it is merely necessary to place one end of the tile in one of the channel members and to pass the other end of the tile through the circumferential cut out of the other attaching channel.
摘要翻译： 公开了一种包覆燃烧室结构，其中可以组装和更换包覆砖，而不需要拆卸燃烧室的结构壁。 燃烧室具有大致圆柱形的壁，其外表面和内表面包围燃烧室，并且具有位于壁的外表面和内表面中的一个上的多个包层砖。 为了将包层瓦片附接到燃烧室结构，利用多个通道形状的附接装置，其围绕燃烧室的壁沿大致圆周方向延伸，并具有大致平行于壁延伸但与壁间隔开的部分。 平行于燃烧室的壁延伸的部分具有周向延伸的切口部分，其圆周长度略大于覆盖层的宽度。 通道形安装装置沿着燃烧室的壁轴向间隔开，间隔开一个略大于包覆砖长度的距离。 为了将包层瓦片附接到燃烧室壁，仅需要将瓦片的一端放置在通道构件中的一个中，并使瓦片的另一端穿过另一个附接通道的圆周切口。
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