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    • 1. 发明授权
    • Quiet bleed valve for gas turbine engine
    • 燃气轮机引擎安静排气阀
    • US09175577B2
    • 2015-11-03
    • US13438662
    • 2012-04-03
    • Dimitri PapamoschouFeng Liu
    • Dimitri PapamoschouFeng Liu
    • F02C9/18F01D17/10F02C6/08F02K3/075
    • F01D17/105F02C6/08F02C9/18F02K3/075F05D2260/96
    • A bleed valve that expels a gas from a compressed region includes a valve section and a muffler section coupled to and located downstream from the valve section. The valve section includes a centerbody and a housing. The centerbody supports a plunger that controls opening and closing of the bleed valve. The centerbody is coupled to the housing by at least one strut disposed substantially radially. The at least one strut may have a cross-section that reduces or suppresses flow separation and vortex shedding from the at least one strut. The muffler section may include a baffle plate and a dome plate. A honeycomb may be installed between the baffle plate and the dome plate. The bleed valve may also include a middle plate on a face of the honeycomb and a conical diverter immediately upstream from the baffle plate. Other embodiments are also described.
    • 从压缩区域排出气体的放气阀包括连接到阀部分并位于阀部分下游的阀部分和消声器部分。 阀部分包括中心体和壳体。 中心体支撑一个控制放气阀打开和关闭的柱塞。 中心体通过基本上径向设置的至少一个支柱联接到壳体。 至少一个支柱可以具有减小或抑制从至少一个支柱的流动分离和涡流脱落的横截面。 消音器部分可以包括挡板和圆顶板。 在挡板和圆顶板之间可以安装蜂窝体。 泄放阀还可以包括在蜂窝的表面上的中间板和紧邻挡板上游的锥形转向器。 还描述了其它实施例。
    • 2. 发明申请
    • QUIET BLEED VALVE FOR GAS TURBINE ENGINE
    • 气体涡轮发动机QUIET BLEED VALVE
    • US20120256107A1
    • 2012-10-11
    • US13438662
    • 2012-04-03
    • Dimitri PapamoschouFeng Liu
    • Dimitri PapamoschouFeng Liu
    • F16L55/02
    • F01D17/105F02C6/08F02C9/18F02K3/075F05D2260/96
    • A bleed valve that expels a gas from a compressed region includes a valve section and a muffler section coupled to and located downstream from the valve section. The valve section includes a centerbody and a housing. The centerbody supports a plunger that controls opening and closing of the bleed valve. The centerbody is coupled to the housing by at least one strut disposed substantially radially. The at least one strut may have a cross-section that reduces or suppresses flow separation and vortex shedding from the at least one strut. The muffler section may include a baffle plate and a dome plate. A honeycomb may be installed between the baffle plate and the dome plate. The bleed valve may also include a middle plate on a face of the honeycomb and a conical diverter immediately upstream from the baffle plate. Other embodiments are also described.
    • 从压缩区域排出气体的放气阀包括连接到阀部分并位于阀部分下游的阀部分和消声器部分。 阀部分包括中心体和壳体。 中心体支撑一个控制放气阀打开和关闭的柱塞。 中心体通过基本上径向设置的至少一个支柱联接到壳体。 至少一个支柱可以具有减小或抑制从至少一个支柱的流动分离和涡流脱落的横截面。 消音器部分可以包括挡板和圆顶板。 在挡板和圆顶板之间可以安装蜂窝体。 泄放阀还可以包括在蜂窝的表面上的中间板和紧邻挡板上游的锥形转向器。 还描述了其它实施例。
    • 10. 发明授权
    • Forming machine without pattern casting
    • 成型机无图案铸造
    • US09144838B2
    • 2015-09-29
    • US14357621
    • 2011-11-14
    • Zhongde ShanLimin LiuFeng Liu
    • Zhongde ShanLimin LiuFeng Liu
    • B22C9/02B22C23/00B22C13/00
    • B22C9/02B22C9/12B22C13/00B22C23/00
    • The disclosure provides a forming machine without pattern casting, including: a multi-axis motion system; a cutting system, connected with the multi-axis motion system; a driving system, driving the multi-axis motion system to move; and a machining base, wherein the machining base includes a fixing seat and a turnover mechanism, wherein the turnover mechanism is revolvably connected with the fixing seat. Since the forming machine without pattern casting of the disclosure adopts a tilting type and needs no working platform, most of the waste sand grains generated from cutting fall freely into the shakeout groove arranged below the fixing seat, and will not fly into the multi-axis motion system, and will not cause stop failure; thus the precision and service life of the forming machine without pattern casting are improved.
    • 本公开提供了一种无图案铸造的成型机,包括:多轴运动系统; 与多轴运动系统连接的切割系统; 驱动系统,驱动多轴运动系统移动; 以及加工基座,其中所述加工基座包括固定座和翻转机构,其中所述翻转机构与所述固定座可旋转地连接。 由于本公开的无图案铸造的成形机采用倾斜式而不需要工作台,所以大部分由切割产生的废砂颗粒自由落入设在固定座下方的摆动槽内,不会飞入多轴 运动系统,不会导致停机故障; 从而提高了无图案铸造的成型机的精度和使用寿命。