Valve stop for engine with exhaust gas recirculation
    4.
    发明公开
    Valve stop for engine with exhaust gas recirculation 有权
    VentilanschlagfürMotoren mitAbgasrückführung

    公开(公告)号:EP2535549A3

    公开(公告)日:2013-11-20

    申请号:EP12004245.2

    申请日:2012-06-04

    申请人: Caterpillar Inc.

    摘要: A butterfly valve (80) includes a body (81) with a bore (82) through which exhaust gas may flow and a valve member (84) rotatably mounted within the bore (82) for restricting flow through the bore (82). A stop (90) extends into the bore (82) to limit movement of the valve member (84) and prevent the valve member (84) from rotating to a closed position. The stop (90) defines a restricted flow position at which the valve member (84) is positioned between an open position and the closed position. An internal combustion engine utilizing the butterfly valve (80) is also provided.

    摘要翻译: 蝶形阀(80)包括具有可以流过废气的孔(82)的主体(81)和可旋转地安装在孔(82)内的用于限制流过孔(82)的阀构件(84)。 止动件(90)延伸到孔(82)中以限制阀构件(84)的移动,并防止阀构件(84)旋转到关闭位置。 止动件(90)限定了阀构件(84)位于打开位置和关闭位置之间的限制流动位置。 还提供了利用蝶阀(80)的内燃机。

    Butterfly valve, preferably for a blow off circuit of a gas turbine plant
    5.
    发明公开
    Butterfly valve, preferably for a blow off circuit of a gas turbine plant 审中-公开
    Klappventil,insbesonderefüreine Ablassleitung einer Gurburbine

    公开(公告)号:EP2295836A1

    公开(公告)日:2011-03-16

    申请号:EP10171142.2

    申请日:2010-07-28

    IPC分类号: F16K1/226 F02D9/10

    CPC分类号: F02D9/1045 F16K1/2263

    摘要: A butterfly valve (12), preferably for a blow off circuit (9) of a gas turbine plant (1), is provided with:
    a supporting ring (18), which is provided with an inner perimeter edge (25) defining a fluid flow section (27), and with an annular seat (29) arranged along the inner perimeter edge (25);
    a disc (23), which is pivoted to the supporting ring (18) and is mobile between a valve closing position (12), wherein the disc (23) obstructs the fluid flow section (27), and a valve opening position (12), wherein the disc (23) does not obstruct the fluid passage section (27) allowing the flowing of the fluid;
    a sealing ring (22) partially housed in the annular seat (29) and adapted to abut against a peripheral edge (44) of the disc (23) when the disc (23) is in the valve closing position (12); the sealing ring (22) comprising an inner annular portion (34), which is contained in the annular seat (29), and a projecting annular portion (35), which projects radially from the annular seat (29) and is hollow.

    摘要翻译: 优选地用于燃气轮机设备(1)的吹出电路(9)的蝶形阀(12)设置有:支撑环(18),其设置有限定流体的内周边缘(25) 流动部分(27)和沿着内周边缘(25)布置的环形座(29); 盘(23),其枢转到支撑环(18)并且可在阀关闭位置(12)之间移动,其中盘(23)阻挡流体流动部分(27)和阀打开位置(12) ),其中所述盘(23)不阻碍允许流体流动的流体通道部分(27); 当所述盘(23)处于所述阀关闭位置(12)时,密封环(22)部分地容纳在所述环形座(29)中并且适于抵靠所述盘(23)的周边边缘(44)。 所述密封环(22)包括容纳在所述环形座(29)中的内环形部分(34)和从所述环形座(29)径向突出并且是中空的突出环形部分(35)。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    7.
    发明授权
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:EP1959117B1

    公开(公告)日:2010-11-03

    申请号:EP06834846.5

    申请日:2006-12-11

    发明人: YAMASHITA, Akira

    摘要: An exhaust gas purification system having a low-pressure EGR device for re-circulating a portion of exhaust gas to an air inlet tube on the upstream side of a compressor of the turbocharger, the exhaust gas being gas flowing on the downstream side of a turbine of a turbocharger. In the system, a technique for suppressing occurrence of vibration and noise when an internal combustion engine is stopped is provided. A first throttle valve (13) is provided on the downstream side of a compressor housing (15a) of the air inlet tube (9). When a stop request for the internal combustion engine (1) is issued, a second throttle valve (10) is opened first and then the first throttle valve (13) is closed.

    摘要翻译: 一种废气净化系统,其具有用于使一部分废气再循环至涡轮增压器的压缩机的上游侧的空气导入管的低压EGR装置,所述废气是在涡轮的下游侧 的涡轮增压器。 在该系统中,提供了一种用于在内燃机停止时抑制振动和噪音的发生的技术。 第一节流阀(13)设置在空气入口管(9)的压缩机壳体(15a)的下游侧。 当发出内燃机(1)的停止请求时,首先打开第二节流阀(10),然后关闭第一节流阀(13)。

    Engine intake control system
    10.
    发明公开

    公开(公告)号:EP2063082A3

    公开(公告)日:2009-07-01

    申请号:EP09154883.4

    申请日:2008-06-04

    IPC分类号: F02B27/02 F02D9/10

    摘要: A valve plate is formed as a butterfly-type valve plate including a first and a second valve-plate half portions that extend in opposite directions to each other from a valve shaft. When the valve plate is at a first changeover position, the first valve-plate half portion is directed to the downstream side of a first intake passage from the valve shaft and the second valve-plate half portion is directed to the upstream side of the first intake passage from the valve shaft so that a first plate face of the valve plate forms a part of the first intake passage. When the valve plate is at a second changeover position, the first valve-plate half portion is directed to the downstream side of a second intake passage from the valve shaft and the second valve-plate half portion is directed to the upstream side of the second intake passage from the valve shaft so that a second plate face of the valve plate forms a part of the second intake passage. Accordingly, the power needed for changing over the valve plate and for keeping a predetermined changeover position can be reduced significantly.