专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5906097A Engine flow control device 失效
标题翻译：发动机流量控制装置
公开(公告)号：US5906097A
公开(公告)日：1999-05-25
申请号：US825827
申请日：1997-03-29
申请人： Leonard J. Hebert , Jerry Piro , Michael W. Su , Ronald L. Balzer , Michael L. Sangwin , Jeff P. Lewis , Robert E. Moody
发明人： Leonard J. Hebert , Jerry Piro , Michael W. Su , Ronald L. Balzer , Michael L. Sangwin , Jeff P. Lewis , Robert E. Moody
IPC分类号： B64C23/00 , B64D33/04 , F02C7/20 , F02K3/02
CPC分类号： B64C23/00 , B64D29/02 , B64D33/04
摘要： A fencing assembly (66) for prohibiting circulation of primary and/or fan airflows (52), (54) into a bounded low pressure region of a jet engine installation. The fencing assembly includes one or more flow control fences. In an exemplary application, the fencing assembly includes a number of fences positioned around the sides of a batcave (48) bounded low pressure region that is located between a primary exhaust nozzle (20) and strut fairings (30). The fencing assembly includes five fences, each fence being connected to either the primary exhaust nozzle or the strut fairings. The five fences include single fences (70), (72) positioned along each lateral side of the batcave; two rear fences (74), (74') positioned circumferentially about rear regions of the batcave; and an arcuate fence (76) positioned near the two rear fences to form a half circle. The fences include a foot portion (78) and an upright portion (80).
摘要翻译：一种用于禁止将主风扇和/或风扇气流（52），（54）循环到喷气发动机装置的有界低压区域中的围栏组件（66）。围栏组件包括一个或多个流动控制栅栏。在示例性应用中，围栏组件包括围绕位于主排气喷嘴（20）和支柱整流罩（30）之间的限定低压区域的窖（48）的侧面周围的多个栅栏。围栏组件包括五个栅栏，每个围栏连接到主排气喷嘴或支柱整流罩。五个围栏包括沿着蝙蝠的每个侧面定位的单篱笆（70），（72）两个后围栏（74），（74'）围绕所述蝙蝠的后部区域周向定位; 以及位于两个后挡板附近的弓形围栏（76）以形成半圆形。围栏包括脚部（78）和直立部（80）。

2. 发明授权

US6050527A Flow control device to eliminate cavity resonance 失效
标题翻译：流量控制装置消除腔体共振
公开(公告)号：US6050527A
公开(公告)日：2000-04-18
申请号：US183812
申请日：1997-12-19
申请人： Leonard J. Hebert , Wendell R. Miller , Eric H. Nesbitt , Jerry Piro , Michael L. Sangwin
发明人： Leonard J. Hebert , Wendell R. Miller , Eric H. Nesbitt , Jerry Piro , Michael L. Sangwin
IPC分类号： B64C23/00 , B64D33/02 , B64C21/06
CPC分类号： B64D33/02 , B64C23/00 , B64C2230/06 , B64C2230/20 , B64D2033/026 , Y02T50/166
摘要： A flow control device and method for eliminating flow-induced cavity resonance within a closed or nearly closed end flow passage (20) having an inlet opening (30) defined between an upstream inlet edge (32) and a downstream inlet edge (34). The passage accepts exterior fluid flow (38) therein via the opening (30). The flow control device includes a stationary inlet guide vane (44) having a leading edge (46), a trailing edge (48), and a number of support members (50) to connect the vane to the inlet. The vane (44) is positioned such that the vane leading edge intercepts the exterior fluid flow shear layer, and the vane trailing edge extends into the passage at the inlet. In a preferred embodiment, the inlet guide vane is located approximately midway between the upstream and downstream inlet edges. The inlet guide vane is cross-sectionally shaped as a cambered airfoil. Flow-induced cavity resonance is reduced or eliminated in the closed or nearly closed end passage through the interception of the free shear layer passing over the inlet opening with an inlet guide vane flow control device.
摘要翻译：一种流动控制装置和方法，用于消除闭合或近闭合的端部流动通道（20）内的流动感应腔共振，该流动通道具有限定在上游入口边缘（32）和下游入口边缘（34）之间的入口（30）。通道经由开口（30）接收其中的外部流体流（38）。流量控制装置包括具有前缘（46），后缘（48）和用于将叶片连接到入口的多个支撑构件（50）的固定入口引导叶片（44）。叶片（44）被定位成使得叶片前缘拦截外部流体流动剪切层，并且叶片后缘延伸到入口处的通道中。在优选实施例中，入口引导叶片位于上游和下游入口边缘之间的大致中间位置。入口导向叶片的横截面形状为弧形翼型。通过通过入口引导叶片流量控制装置拦截通过入口开口的自由剪切层，在闭合或近闭合的端部通道中减少或消除了流动诱发的腔共振。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式