公开(公告)号：US6092546A

公开(公告)日：2000-07-25

申请号：US989606

申请日：1997-12-12

申请人： Ivan P. Lebrun ,  Paul W. Futa, Jr.

发明人： Ivan P. Lebrun ,  Paul W. Futa, Jr.

IPC分类号： F02C7/228 ,  F02C9/26 ,  F02C7/232

CPC分类号： F02C9/263 ,  F02C7/228 ,  Y02T50/671

摘要： A combination pressurizing valve (27) and fuel flow divider for a gas turbine is operable in three different fuel distribution modes utilizing three windows which are successively opened to control the flow distribution to the engine atomizing or start-up nozzles (23) and engine air blast or running nozzles (25) respectively by way of two fixed orifices (51, 55) in a way that satisfies the start-up flow distribution favoring the atomizing nozzles (23) as well as the need for balanced flow distribution between the different types of engine nozzles after a successful start. The first window position corresponds to an engine ignition mode and includes a range of intermediate valve spool (33, 133) positions where one outlet port (57) is open and the other outlet port (67) receives a restricted flow of fuel. The second window position includes a range of valve spool (33, 133) positions where the one outlet port (57) is open and the other outlet port (67) is open to receive a flow of fuel greater than the restricted flow. The third window position corresponds to a full power engine condition and includes a range of valve spool (33, 133) positions including the another extreme position where the one outlet port (57) is open and the other outlet port (67) is open to receive a still further increased flow of fuel.

摘要翻译： 用于燃气轮机的组合加压阀（27）和燃料分流器可在三种不同的燃料分配模式中操作，利用三个窗口，这三个窗口连续打开以控制向发动机雾化或启动喷嘴（23）和发动机空气 分别通过两个固定孔口（51,55）以满足启动流分布的方式喷射或运行喷嘴（25），有利于雾化喷嘴（23），以及需要不同类型之间的平衡流量分配 发动机喷嘴成功启动后。 第一窗口位置对应于发动机点火模式，并且包括一个中间阀阀芯（33,133）的位置，其中一个出口（57）打开，另一个出口（67）接收受限制的燃料流。 第二窗口位置包括一个阀芯（33,133）的位置，其中一个出口端口（57）打开，另一个出口端口（67）打开以接收大于限制流量的燃料流。 第三窗口位置对应于全功率发动机状态，并且包括一个阀芯（33,133）的范围，该位置包括一个出口（57）打开的另一个极限位置，另一个出口（67）打开 还会进一步增加燃油流量。

公开(公告)号：US06807875B2

公开(公告)日：2004-10-26

申请号：US09727737

申请日：2000-12-01

申请人： Ivan P. Lebrun ,  David H. Ohnesorge

发明人： Ivan P. Lebrun ,  David H. Ohnesorge

IPC分类号： F16K3700

CPC分类号： G01B7/16 ,  F15B13/0402 ,  F15B2013/0409 ,  F16K37/0041 ,  G01B7/003 ,  G01D3/036 ,  Y10T137/8242

摘要： A position sensor and a method for sensing a position of a moveable member includes at least first and second deflectable members arranged so as to allow the moveable member to pass therebetween and cause the at least first and second moveable members to deflect in proportion to the position of the moveable member relative to the first and second deflectable members. In one example of the present invention, the deflectable members are cantilever-mounted members extending in generally the same direction. The amount of resultant deflection is measured by any suitable means. For example, each deflectable member may have a Wheatstone bridge provided thereon acting as a strain gauge in a known manner, such that the strain detected is proportional to the amount of deflection. In a particular example of the present invention, some of the elements of a first Wheatstone bridge are provided on the first deflectable member and some are provided on the second deflectable member. Likewise, some of the elements of a second Wheatstone bridge are provide on the first deflectable member and some are provided on the second. This desirably provides matched redundancy as well as compensation for spurious lateral movement of the moveable member.

摘要翻译： 位置传感器和用于感测可移动构件的位置的方法包括至少第一和第二可偏转构件，其布置成允许可移动构件在它们之间通过，并使至少第一和第二可动构件与位置成比例地偏转 的可动构件相对于第一和第二可偏转构件。 在本发明的一个示例中，可偏转构件是沿大致相同方向延伸的悬臂安装构件。 通过任何合适的方式测量合成偏转量。 例如，每个可偏转构件可以具有以已知方式作为应变计提供的惠斯通电桥，使得检测到的应变与偏转量成比例。 在本发明的特定示例中，第一惠斯通电桥的一些元件设置在第一可偏转构件上，一些元件设置在第二可偏转构件上。 类似地，第二惠斯通电桥的一些元件提供在第一可偏转构件上，一些元件设置在第二可变形构件上。 这理想地提供了匹配的冗余以及对可移动构件的伪横向运动的补偿。

公开(公告)号：US5983782A

公开(公告)日：1999-11-16

申请号：US131157

申请日：1998-08-07

申请人： Ivan P. Lebrun ,  George S. Wieger

发明人： Ivan P. Lebrun ,  George S. Wieger

IPC分类号： F15B11/12 ,  F15B15/12 ,  F15B20/00 ,  F01C9/00

CPC分类号： F15B11/121 ,  F15B15/12 ,  F15B20/00

摘要： A fluid powered rotary actuator (10) having a stator (13) and a rotor (15) journalled with limited rotary motion within the stator includes at least one arcuate chamber defined between the rotor and stator and has an angularly movable vane (16) fixed to the rotor. There is a seal member (21, 23) at the vane for slidingly sealing a cylindrical sidewall surface of the stator thereby subdividing the arcuate chamber into two variable volume subchambers (25, 29; 27, 31). Pressurized fluid is ported selectively to one of the subchambers while a fluid egress path for fluid from the other of the subchambers allows the rotor to move angularly within the stator. There is a fail-safe aperture (22) in the cylindrical stator surface in a region traversed by the seal member and for conveying fluid from a selected one of the subchambers, as determined by the position of the vane, and a fail safe valve (24) coupled to and normally blocking the egress of fluid from a subchamber through the aperture (22). The fail-safe valve (24) is energized upon the occurrence of a malfunction to allow fluid flow from the subchamber through the aperture (22). The fail-safe valve (24) may further provide a pressurized fluid path (41, 45) to both subchambers with a fluid return path being provided by through the aperture (22) and fail-safe valve 24 upon the occurrence of a malfunction causing the rotor (15) to move to a neutral position upon occurrence of a malfunction.

摘要翻译： 具有定子（13）和定子内受限制的旋转运动的转子（15）的流体动力旋转致动器（10）包括限定在转子和定子之间的至少一个弧形室，并且具有固定的角度可动的叶片（16） 到转子。 在叶片处具有用于滑动地密封定子的圆柱形侧壁表面的密封构件（21,23），从而将弓形室细分成两个可变容积的子室（25,29,27,31）。 加压流体被选择性地移动到一个子室中，而来自另一个子室的流体的流体出口路径允许转子在定子内成角度地移动。 在由密封构件穿过的区域中的圆柱形定子表面中存在故障安全孔（22），并且用于根据叶片的位置确定的从所选择的一个子室输送流体和故障安全阀（ 24）耦合并且通常阻挡来自子室的流体通过孔（22）的流出。 故障安全阀（24）在故障发生时通电，以允许流体从子室流过孔（22）。 故障安全阀（24）还可以向两个副室提供加压流体路径（41,45），其中在发生故障导致时通过孔（22）和故障安全阀24提供流体返回路径 转子（15）在故障发生时移动到中立位置。