-
公开(公告)号：US09777631B2
公开(公告)日：2017-10-03
申请号：US13251139
申请日：2011-09-30
IPC分类号： F02C7/04
CPC分类号： F02C7/04 , F02K3/075 , F02K3/077 , Y02T50/671 , Y10T137/0536
摘要： An inlet apparatus for a gas turbine engine includes: a fan duct adapted to surround at least one row of rotating fan blades, the fan duct having a circular frontal area, and defining a first inlet plane; and an outer duct surrounding the fan duct, the outer duct including: a first frontal area shape at the first inlet plane which defines, cooperatively with an exterior of the fan duct, at least one lobe through which air can pass; and a second frontal area shape at a second inlet plane located axially downstream from the forward end which is circular, and which defines, cooperatively with an exterior of the fan duct, an annulus through which air can pass.
-
公开(公告)号：US20130081375A1
公开(公告)日：2013-04-04
申请号：US13251139
申请日：2011-09-30
CPC分类号： F02C7/04 , F02K3/075 , F02K3/077 , Y02T50/671 , Y10T137/0536
摘要： An inlet apparatus for a gas turbine engine includes: a fan duct adapted to surround at least one row of rotating fan blades, the fan duct having a circular frontal area, and defining a first inlet plane; and an outer duct surrounding the fan duct, the outer duct including: a first frontal area shape at the first inlet plane which defines, cooperatively with an exterior of the fan duct, at least one lobe through which air can pass; and a second frontal area shape at a second inlet plane located axially downstream from the forward end which is circular, and which defines, cooperatively with an exterior of the fan duct, an annulus through which air can pass.
摘要翻译： 用于燃气涡轮发动机的入口装置包括：风扇管道，其适于围绕至少一排旋转风扇叶片，所述风扇管道具有圆形正面区域，并且限定第一入口平面; 以及围绕所述风扇管道的外部管道，所述外部管道包括：在所述第一入口平面处的第一正面区域形状，其与所述风扇管道的外部协调地限定空气可以通过的至少一个叶片; 并且在第二入口面处的第二正面区域形状，位于从前端轴向下游的圆形的第二入口面，并且与风扇管道的外部协调地限定空气可以通过的环形空间。
-
公开(公告)号：US20110167791A1
公开(公告)日：2011-07-14
申请号：US12642949
申请日：2009-12-21
IPC分类号： F02K3/02
CPC分类号： F02K3/075 , F01D17/162 , F02C7/042 , F02C9/18 , F02C9/20 , F02K3/077 , F05D2220/327
摘要： A gas turbine engine is disclosed having a fan system with a front stage fan rotor and an aft fan rotor coupled to a low-pressure turbine, a core having a compressor coupled to a high-pressure turbine, an annular inner bypass passage and an annular outer bypass passage. The aft fan rotor has a row of aft fan blades having an arcuate splitter that forms a portion of an inner flow passage and an outer flow passage wherein the aft fan blade pressurizes an inner flow and an outer flow and wherein the fan tip pressure ratio can be changed while the air flow into the front stage fan rotor is held substantially constant.
摘要翻译： 公开了一种燃气涡轮发动机，其具有风扇系统，其具有前级风扇转子和联接到低压涡轮机的后风扇转子，具有联接到高压涡轮机的压缩机的芯，环形内旁通通道和环形 外旁路通道。 后风扇转子具有一排后风扇叶片，其具有形成内流道的一部分的弓形分流器和外流道，其中后风扇叶片对内流和外流加压，并且其中风扇叶尖压力比可以 在进入前级风扇转子的气流保持基本恒定的同时进行更换。
-
公开(公告)号：US20110167792A1
公开(公告)日：2011-07-14
申请号：US12642967
申请日：2009-12-21
IPC分类号： F02K3/02
CPC分类号： F02K3/075 , F01D17/162 , F02C7/042 , F02K3/077
摘要： An adaptive gas turbine engine is disclosed having a convertible fan system adapted to have a variable fan pressure ratio while the air flow into the convertible fan system remains substantially constant and an adaptive core having a compressor capable of maintaining a substantially constant core pressure ratio while a core airflow flow rate is varied.
摘要翻译： 公开了一种自适应燃气涡轮发动机，其具有适于具有可变风扇压力比的可变风扇系统，同时进入可转换风扇系统的空气流保持基本恒定，并且具有压缩机的自适应型芯能够保持基本上恒定的芯压比，而 核心气流流量变化。
-
公开(公告)号：US20110171007A1
公开(公告)日：2011-07-14
申请号：US12642943
申请日：2009-12-21
IPC分类号： F01D17/00
CPC分类号： F02K3/075 , F01D17/162 , F02C7/042 , F02C9/18 , F02C9/20 , F02K3/077 , F05D2220/327
摘要： A convertible fan system is disclosed having a fan rotor with a plurality of fan blades having an arcuate splitter that forms a portion of an inner flow passage and an outer flow passage wherein an inner portion of the fan blade pressurizes an inner flow in the inner flow passage and an outer portion of the fan blade pressurizes an outer flow in the outer flow passage and a vane system having an outer vane that is adapted to be able to vary the flow in the outer flow passage such that pressure ratio of the fan system can be varied.
摘要翻译： 一种敞篷式风扇系统，其具有风扇转子，该风扇转子具有多个风扇叶片，所述风扇叶片具有形成内部流动通道的一部分的弧形分离器和外部流动通道，其中风扇叶片的内部部分对内部流动中的内部流动进行加压 通道和风扇叶片的外部部分对外部流动通道中的外部流动进行加压，以及具有外部叶片的叶片系统，其适于能够改变外部流动通道中的流动，使得风扇系统的压力比可以 变化多变
-
公开(公告)号：US08622687B2
公开(公告)日：2014-01-07
申请号：US12871073
申请日：2010-08-30
IPC分类号： F02K3/00
CPC分类号： F02K3/075 , F05D2220/323
摘要： A method of operating a compressor in an adaptive core engine is disclosed. The method comprises the steps of operating a front block compressor to increase pressure of a fluid to a first pressure ratio in a high-power mode operation; operating a rear block compressor coupled to the front block compressor such that the front block compressor and the rear block compressor operate at the same physical speed; closing a rear block stator vane located axially forward from the rear block compressor such that the flow of the fluid into the rear block compressor is substantially cut off; and keeping a blocker door opened such that substantially all of the fluid pressurized by the front block compressor flows through a bypass passage during the high-power mode operation. The operation may be transitioned from the high-power mode to a low-power mode by opening a rear block stator such that the rear block compressor receives at least a portion of the fluid flowing from the front block compressor and maintains an overall engine pressure ratio.
摘要翻译： 公开了一种在自适应核心引擎中操作压缩机的方法。 该方法包括以下步骤：在高功率模式操作中操作前部块压缩机以将流体的压力增加到第一压力比; 操作联接到前部块压缩机的后部块式压缩机，使得前部块式压缩机和后部块式压缩机以相同的物理速度运行; 关闭从后块式压缩机轴向向前定位的后块定子叶片，使得流入后块式压缩机的流体基本上被切断; 并且保持阻挡门打开，使得在大功率模式操作期间，由前块式压缩机加压的基本上所有的流体都流经旁路通道。 操作可以通过打开后挡块定子从大功率模式转换到低功率模式，使得后块式压缩机接收从前块式压缩机流出的流体的至少一部分，并保持总体发动机压力比 。
-
公开(公告)号：US20110167784A1
公开(公告)日：2011-07-14
申请号：US12642960
申请日：2009-12-21
IPC分类号： F02K3/075
CPC分类号： F02K3/075 , F01D17/162 , F02C7/042 , F02C9/18 , F02C9/20 , F02K3/077 , F05D2220/327
摘要： A method of operating a gas turbine engine is disclosed having the steps of directing a flow of air to a front fan stage at a selected fan flow rate, fan speed and front fan stage pressure ratio corresponding to a selected first operating power level, pressurizing a portion of the flow from the front fan stage in a aft fan rotor to a first tip pressure ratio to generate a first overall fan pressure ratio, selecting a second operating power level that is lower than the first operating power level and reducing the flow in the aft fan rotor and pressurizing to a second tip pressure ratio to generate a second overall pressure ratio that is substantially lower than the first overall fan pressure ratio while the flow rate in the front fan stage is held substantially constant.
摘要翻译： 公开了一种操作燃气涡轮发动机的方法，其具有以对应于所选择的第一操作功率水平的所选风扇流量，风扇速度和前风扇级压力比将空气流引导到前风扇级的步骤， 在后风扇转子中从前风扇级的流量部分到第一末端压力比，以产生第一整体风扇压力比，选择低于第一操作功率水平的第二操作功率水平并减少在第 后风扇转子并加压到第二末端压力比，以产生基本上低于第一总风扇压力比的第二总压力比，同时前风扇级中的流量保持基本上恒定。
-
公开(公告)号：US07614210B2
公开(公告)日：2009-11-10
申请号：US11352673
申请日：2006-02-13
IPC分类号： F02K3/02
CPC分类号： F02K3/072 , F02K1/08 , F02K3/075 , F02K3/077 , Y02T50/671
摘要： A variable cycle turbofan engine includes first and second fans independently joined to respective turbines. A first bypass duct surrounds a core engine disposed in flow communication with the second fan. A second bypass duct surrounds the first bypass duct in flow communication with the first fan. A first exhaust nozzle is joined to both the core engine and first bypass duct. And, a second exhaust nozzle is joined to the second bypass duct.
摘要翻译： 可变循环涡轮风扇发动机包括独立地连接到相应涡轮机的第一和第二风扇。 第一旁通管道围绕与第二风扇流动连通地设置的核心发动机。 第二旁通管道围绕与第一风扇流动连通的第一旁路管道。 第一排气喷嘴连接到核心发动机和第一旁通管道两者。 并且，第二排气喷嘴连接到第二旁通管道。
-
9.发明授权Axial flow positive displacement gas generator with combustion extending into an expansion section 有权轴向流量正位移气体发生器，其燃烧延伸到膨胀段公开(公告)号：US07530217B2
公开(公告)日：2009-05-12
申请号：US11303143
申请日：2005-12-16
IPC分类号： F02C3/02
CPC分类号： F23R3/56 , F01C1/107 , F01C11/008 , F02C3/055 , F02C5/06 , F02K5/00 , F05D2220/326 , F05D2220/327 , F05D2250/25 , F05D2260/40311 , Y02T50/671
摘要： An axial flow positive displacement engine has an inlet axially spaced apart and upstream from an outlet. Inner and outer bodies have offset inner and outer axes extend from the inlet to the outlet through first, second, and third sections of a core assembly in serial downstream flow relationship. At least one of the bodies is rotatable about its axis. The inner and outer bodies have intermeshed inner and outer helical blades wound about the inner and outer axes respectively. The inner and outer helical blades extend radially outwardly and inwardly respectively and have first, second, and third twist slopes in the first, second, and third sections respectively. The first twist slopes are less than the second twist slopes and the third twist slopes are less than the second twist slopes. A combustion section extends axially downstream from the second section through at least a portion of the third section.
摘要翻译： 轴流容积式发动机具有在出口处轴向间隔开和上游的入口。 内部和外部主体具有偏移的内部和外部轴线从入口到出口通过串联下游流动关系的芯组件的第一，第二和第三部分延伸。 至少一个主体可围绕其轴线旋转。 内外体分别围绕内轴和外轴缠绕内螺旋叶片和外螺旋叶片。 内螺旋叶片和外螺旋叶片分别径向向外和向内延伸，并且分别在第一，第二和第三部分中具有第一，第二和第三扭曲斜面。 第一扭转斜面小于第二扭转斜面，第三扭转斜面小于第二扭转斜面。 燃烧部分从第二部分轴向延伸穿过第三部分的至少一部分。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.02 秒)
