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公开(公告)号：WO2011056907A3
公开(公告)日：2011-05-12
申请号：PCT/US2010/055349
申请日：2010-11-04
Applicant: WOODWARD, INC. , NIEMEYER, Nathan , CARSON, Charlie
Inventor： NIEMEYER, Nathan , CARSON, Charlie
Abstract: A variable performance valve for use in a fuel nozzle is presented. The valve includes a spring, an inner spool having a port, an outer sleeve, and an orifice, which in a fuel nozzle application may be a calibration orifice. In a low flow condition, the inlet to downstream pressure is the spring force divided by the area on which the pressure acts. At low flow the orifice does not cause any appreciable pressure drop. As the flow increases, a pressure drop develops across the orifice. Since the pressure drop across the valve cannot be greater than the spring force divided by valve area, the valve is forced to open to compensate. As flow is increased, the valve will stroke completely open and the pressure drop at the port becomes negligible and the pressure drop across the orifice is nearly 100% of the pressure drop across the valve.
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公开(公告)号：WO2013028562A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051465
申请日：2012-08-17
Applicant: WOODWARD, INC. , SNODGRASS, Brett Jay , CARSON, Charlie , BAKER, Carthel C. , GARRY, Michael P.
Inventor： SNODGRASS, Brett Jay , CARSON, Charlie , BAKER, Carthel C. , GARRY, Michael P.
CPC classification number: F01D5/147 , F01D5/148 , F02C1/00 , F02C7/228 , F02C9/26 , F02C9/263 , F02C9/28 , F02C9/34 , F02G3/00 , F05D2230/51 , F05D2230/80 , F05D2240/304 , F05D2250/90 , F16K11/00 , F23K5/06 , F23K2203/105 , F23R3/34 , F23R2900/00004 , Y02T50/673 , Y10T137/0318 , Y10T137/877
Abstract: A split control unit in a distributed flow unit includes a flow inlet configured to receive a fuel flow, a first manifold having flow lines to supply fuel to one or more primary nozzles, and a second manifold having flow lines to supply fuel to one or more secondary nozzles. In an embodiment, the second manifold is in fluid communication with the flow inlet. A metering valve has a first port in fluid communication with the flow inlet and with the second manifold. The metering valve is configured to supply a metered fuel flow to the first manifold. A flow passage is in fluid communication with, and runs between, a flow line of the first manifold and a flow line of the second manifold to allow for a continuous cooling flow in the second manifold when all of the one or more secondary nozzles are closed.
Abstract translation: 分布式流量单元中的分流控制单元包括被配置为接收燃料流的流入口，具有向一个或多个主喷嘴供应燃料的流动管线的第一歧管，以及具有流线以将燃料供应到一个或多个 二次喷嘴。 在一个实施例中，第二歧管与流入口流体连通。 计量阀具有与流入口和第二歧管流体连通的第一端口。 计量阀配置成向第一歧管提供计量燃料流。 流动通道在第一歧管的流动管线和第二歧管的流动管线之间流体连通并且在其之间延伸，以允许在所有一个或多个次要喷嘴闭合时在第二歧管中进行连续的冷却流动 。
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公开(公告)号：WO2013028561A1
公开(公告)日：2013-02-28
申请号：PCT/US2012/051463
申请日：2012-08-17
Applicant: WOODWARD, INC. , SNODGRASS, Brett Jay , CARSON, Charlie , BAKER, Carthel C. , GARRY, Michael P.
Inventor： SNODGRASS, Brett Jay , CARSON, Charlie , BAKER, Carthel C. , GARRY, Michael P.
CPC classification number: F23D11/38 , F02C7/232 , F23R3/343 , F23R2900/00004
Abstract: A fuel split control arrangement is provided. The arrangement includes a staged cooling flow control valve and cooling check valve. The staged cooling flow control valve and cooling check valve is connected between the primary and secondary tips of a nozzle in a turbine engine. The staged cooling flow control valve and cooling check valve includes a valve member arrangement operable to prevent fuel flow from the secondary fuel supply manifold to the secondary tip and simultaneously allow fuel flow from the secondary fuel supply manifold to the primary tip such that the primary tip receives fuel flow from both the secondary fuel supply manifold and the primary fuel supply manifold.
Abstract translation: 提供燃料分配控制装置。 该装置包括分级冷却流量控制阀和冷却止回阀。 分级冷却流量控制阀和冷却止回阀连接在涡轮发动机中的喷嘴的主要和次要末端之间。 分级冷却流量控制阀和冷却止回阀包括阀构件装置，其可操作以防止燃料从二次燃料供应歧管流到二次顶端并同时允许燃料从第二燃料供应歧管流到主要尖端，使得主尖端 从二次燃料供应歧管和一次燃料供应歧管接收燃料流。
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公开(公告)号：WO2011056907A2
公开(公告)日：2011-05-12
申请号：PCT/US2010055349
申请日：2010-11-04
Applicant: WOODWARD INC , NIEMEYER NATHAN , CARSON CHARLIE
Inventor： NIEMEYER NATHAN , CARSON CHARLIE
CPC classification number: F02C7/232 , F16K11/0708 , Y10T137/7851 , Y10T137/7925 , Y10T137/7931
Abstract: A variable performance valve for use in a fuel nozzle is presented. The valve includes a spring, an inner spool having a port, an outer sleeve, and an orifice, which in a fuel nozzle application may be a calibration orifice. In a low flow condition, the inlet to downstream pressure is the spring force divided by the area on which the pressure acts. At low flow the orifice does not cause any appreciable pressure drop. As the flow increases, a pressure drop develops across the orifice. Since the pressure drop across the valve cannot be greater than the spring force divided by valve area, the valve is forced to open to compensate. As flow is increased, the valve will stroke completely open and the pressure drop at the port becomes negligible and the pressure drop across the orifice is nearly 100% of the pressure drop across the valve.
Abstract translation: 提出了一种用于燃料喷嘴的可变性能阀。 阀包括弹簧，具有端口的内卷轴，外套筒和孔，其在燃料喷嘴应用中可以是校准孔。 在低流量条件下，下游压力的入口是弹簧力除以压力作用的区域。 在低流量下，孔不会引起任何明显的压降。 随着流量的增加，孔口上形成压降。 由于阀门上的压降不能大于弹簧力除以阀面积，阀门被强制打开以进行补偿。 随着流量增加，阀门将完全打开，并且端口处的压降变得可忽略，并且孔口处的压降几乎接近阀门压降的100％。
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