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1. 发明授权

US4898001A Gas turbine combustor 失效
标题翻译：燃气轮机燃烧器
公开(公告)号：US4898001A
公开(公告)日：1990-02-06
申请号：US144646
申请日：1988-01-11
申请人： Michio Kuroda , Isao Sato , Yoji Ishibashi , Yoshihiro Uchiyama , Takashi Ohmori , Shigeyuki Akatsu , Fumio Kato , Yorihide Segawa , Nobuyuki Iizuka
发明人： Michio Kuroda , Isao Sato , Yoji Ishibashi , Yoshihiro Uchiyama , Takashi Ohmori , Shigeyuki Akatsu , Fumio Kato , Yorihide Segawa , Nobuyuki Iizuka
IPC分类号： F23R3/04 , F23R3/28 , F23R3/34 , F23R3/44
CPC分类号： F23R3/44 , F23R3/04 , F23R3/28 , F23R3/346
摘要： A gas turbine combustor for reducing a production of NOx. The combustor includes a head combustion chamber and a rear combustion chamber which is larger in diameter than the head combustion chamber. The head combustion chamber is provided with an axially extending hollow frustoconical tubular member to form an annular combustion space therein, air holes for axially jetting air into the annular combustion chamber, air holes formed on a peripheral wall for injecting air and a plurality of fuel nozzles projected into the annular combustion space for injecting fuel into vortex formed by the air jet and the injected air flow whereby the flame is stabilized and lean combustion can be effected. The rear combustion chamber has a fuel and air supply means on the upstream side which includes air inlets formed by whirling vanes and fuel nozzles disposed in the air inlets so that fuel and air are mixed well. The fuel and air mixture is jetted substantially axially while whirling it so that formation of hot spots is avoided and the NOx formation is extremely limited.
摘要翻译：一种用于减少NOx生产的燃气轮机燃烧器。燃烧器包括头部燃烧室和直径大于头部燃烧室的后部燃烧室。头部燃烧室设置有轴向延伸的中空截头圆锥形管状构件以在其中形成环形燃烧空间，用于将空气轴向地喷射到环形燃烧室中的气孔，形成在用于喷射空气的周壁上的气孔和多个燃料喷嘴投射到环形燃烧空间中，用于将燃料喷射到由空气射流和喷射空气流形成的涡流中，从而使火焰稳定并且可以实现贫燃。后燃烧室在上游侧具有燃料和空气供给装置，其包括由旋转叶片形成的空气入口和设置在空气入口中的燃料喷嘴，使得燃料和空气充分混合。燃料和空气混合物在旋转时基本上轴向地喷射，从而避免形成热点并且非常限制NOx的形成。

2. 发明授权

US4253800A Wheel or rotor with a plurality of blades 失效
标题翻译：具有多个叶片的车轮或转子
公开(公告)号：US4253800A
公开(公告)日：1981-03-03
申请号：US65534
申请日：1979-08-10
申请人： Yorihide Segawa , Fumio Fujisawa , Koki Shiohata
发明人： Yorihide Segawa , Fumio Fujisawa , Koki Shiohata
IPC分类号： F04D29/30 , F01D5/10 , F04D29/32 , F04D29/66
CPC分类号： F01D5/10 , F04D29/282 , F04D29/30 , F04D29/328 , F04D29/666 , F05D2260/961 , Y10S416/50
摘要： A wheel or rotor with a plurality of blades arranged at irregular or unequal pitch angles circumferentially of a disk, a hub or the like, wherein the characteristic level e.sub.k representative of the order-of-harmonic characteristic of blade pitch is defined bye.sub.k =10 log.sub.e d.sub.k +100where ##EQU1## Z=a number of blades k=1,2, . . . and n; n.gtoreq.Z.theta..sub.j =the angular position of the tip or root of each blade defined in terms of a central angle subtended at the center of a circle, which is the axis of said wheel or rotor, by an arc extended from a reference point on said circle to said tip or root of each blade on said circle, j=1,2, . . . and Z; andthe characteristic level e.sub.k satisfies the following conditions ##EQU2## where e=-13.14 log.sub.10 Z+99.70k=2,3, . . . n.
摘要翻译：具有多个叶片的轮或转子，其具有以不规则或不相等的间距角度在圆盘，轮毂等上布置，其中表示叶片间距的次谐波特性的特征水平ek由ek = 10 loge dk + 100其中 Z =刀片数k = 1,2。。。和n; n =Zθj =每个叶片的尖端或根部的角位置，其中心角度是以圆的中心为对角的中心角，圆的中心是所述车轮或转子的轴线，在所述圆上的参考点到所述圆上的每个叶片的所述尖端或根部，j = 1,2。。。和Z; 并且特征水平ek满足以下条件，其中e = -13.14log10Z + 99.70 k = 2,3。。。 n。

3. 发明授权

US5106575A Nuclear fuel assemblies 失效
标题翻译：核燃料组件
公开(公告)号：US5106575A
公开(公告)日：1992-04-21
申请号：US464151
申请日：1990-01-12
申请人： Shozo Nakamura , Tadashi Mizuno , Tetsuo Yasuda , Akira Maru , Yoshishige Kawada , Yoshihiko Yanagi , Hiromasa Hirakawa , Junjiro Nakajima , Yasuhiro Aizawa , Yorihide Segawa
发明人： Shozo Nakamura , Tadashi Mizuno , Tetsuo Yasuda , Akira Maru , Yoshishige Kawada , Yoshihiko Yanagi , Hiromasa Hirakawa , Junjiro Nakajima , Yasuhiro Aizawa , Yorihide Segawa
IPC分类号： G21C3/322
CPC分类号： G21C3/322 , G21Y2002/201 , G21Y2002/303 , G21Y2004/30 , G21Y2004/302 , Y02E30/38
摘要： A nuclear fuel assembly has a plurality of fuel rods and a lower tie plate supporting their lower ends. Coolant apertures extending through the lower tie plate. A channel box surrounds the fuel rods and receives the lower tie plate, to confine the coolant. To restrict leakage of coolant between the tie plate and the channel box, the coolant apertures include, adjacent the periphery of the lower tie plate, a plurality of peripheral apertures which are located at least partly outside the outermost fuel rods. The peripheral apertures each provide a coolant velocity peak located further from the axial center line of the tie plate than the axial center lines of the closest neighboring fuel rods. The invention also provides venturis in the leakage path between the channel box and the tie plate, to restrict deformation of the tie plate.

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