公开(公告)号：US20180058218A1

公开(公告)日：2018-03-01

申请号：US15250312

申请日：2016-08-29

申请人： Caterpillar Inc.

发明人： Sunil J. Bean ,  Alan R. Stockner ,  Mingchun Dong

IPC分类号： F01B23/08 ,  F04B9/103 ,  F04B15/08 ,  F04B23/02 ,  F01B1/01 ,  F01B25/00 ,  F01B31/28

CPC分类号： F04B23/021 ,  F04B9/103 ,  F04B15/08 ,  F04B2015/081

摘要： A cryogenic fluid pump includes a drive assembly and a pumping assembly. The drive assembly includes a cylinder. The cylinder includes an annular dump channel formed in and extending about an interior wall of the cylinder. A piston is reciprocatable within the cylinder between a first and second position. A hydraulic pressure chamber is defined by the cylinder and the piston. The piston includes an axial spill passage in communication with the pressure chamber and a transverse spill passage in communication with the axial spill passage. The transverse spill passage includes a piston dump port which is sealed to the cylinder in the first position and in the second position unsealed to the cylinder to permit fluid exit from the pressure chamber. The second position includes an over travel state and the dump area of the piston dump port when unsealed to the cylinder increases as the piston advances.

公开(公告)号：US09816378B1

公开(公告)日：2017-11-14

申请号：US13843456

申请日：2013-03-15

申请人： Exelis Inc.

发明人： Keith C. Sneddon

IPC分类号： F01B25/00 ,  F01B17/02 ,  F02C6/16

CPC分类号： F01B25/00 ,  F01B17/02 ,  F01B25/02 ,  F02C6/16 ,  Y02E10/46 ,  Y02E20/14 ,  Y02E60/142 ,  Y02E60/145 ,  Y02E60/15

摘要： A compressor/motor has fluid processing stages, each having ports through which a fluid is accepted in one volume and expelled in another volume. A system of valves selectively couples the ports to define, for a first process of a cycle, a unidirectional fluid path through the fluid processing stages that expels the fluid from path-adjacent fluid processing stages in incrementally smaller volumes. In a second process of the cycle, a reverse unidirectional fluid path is defined by the valves where the fluid expelled from path-adjacent fluid processing stages is in incrementally larger volumes. A mechanical interface coupled to the fluid processing stages conveys a force to the fluid processing stages to compel the fluid through the fluid path in the first process or conveys the force from the fluid processing stages that is compelled by the fluid traversing the reverse fluid path.

公开(公告)号：US20160305246A1

公开(公告)日：2016-10-20

申请号：US14686556

申请日：2015-04-14

申请人： General Electric Company

发明人： Lori Jean Meidenbauer Welch ,  John M. Burant

IPC分类号： F01B25/00 ,  G05B15/02

CPC分类号： F01B25/00 ,  G05B15/02 ,  G06Q10/06 ,  G06Q10/20 ,  G06Q50/04 ,  Y02P90/30

摘要： A method includes retrieving an engine fingerprint of engine components, wherein, for each of the engine components, the engine fingerprint includes a first identifier uniquely identifying each of the engine components. The method also includes querying a plurality of the engine components configured to be disposed in an engine system. Further, the method includes determining if a first engine component is a replacement component, a new component, or an originally installed component based on the engine fingerprint, the first identifier, and the query.

摘要翻译： 一种方法包括检索发动机部件的发动机指纹，其中，对于每个发动机部件，发动机指纹包括唯一地标识每个发动机部件的第一标识符。 该方法还包括查询被配置为设置在发动机系统中的多个发动机部件。 此外，该方法包括基于引擎指纹，第一标识符和查询来确定第一引擎组件是替换组件，新组件还是原始安装的组件。

公开(公告)号：US09188024B2

公开(公告)日：2015-11-17

申请号：US13773670

申请日：2013-02-22

申请人： Pratt & Whitney Canada Corp.

发明人： Marc Tardif

IPC分类号： F01B25/00 ,  F01D25/24 ,  F02K1/48 ,  F01D11/00 ,  F02K1/80

CPC分类号： F01D25/24 ,  F01D11/003 ,  F02K1/48 ,  F02K1/80 ,  F02K1/805 ,  F05D2260/30 ,  Y02T50/671

摘要： A turbine exhaust section comprises a turbine exhaust case having radially outer and inner ducts defining therebetween an annular exhaust portion for the hot exhaust gases, and an exhaust mixer projecting axially rearwardly from the turbine exhaust case for mixing the hot exhaust gases with a cooler bypass duct flow. The upstream end of the exhaust mixer surrounds a downstream end of the outer duct and defines therewith an axially extending overlap joint with a radial play between the outer duct and the exhaust mixer. A sliding attachment in the radial direction is provided between the outer duct and the exhaust mixer for accommodating differences in thermal growth during engine operation. The sliding attachment includes a circumferential array of sliding guides extending radially through the axially extending overlap joint. A resilient sealing ring seals the radial play between the outer duct and the exhaust mixer at the overlap joint.

摘要翻译： 涡轮机排气部分包括具有径向外部和内部管道的涡轮机排气外壳，在其间限定用于热废气的环形排气部分，以及从涡轮机排气箱轴向向后突出的排气混合器，用于将热废气与冷却器旁通管 流。 排气混合器的上游端围绕外部管道的下游端，并且在外部管道和排气混合器之间具有径向游隙的轴向延伸的重叠接头。 在外管和排气混合器之间设置径向滑动附件，用于容纳发动机运转期间的热增长差异。 滑动附件包括沿轴向延伸的重叠接头径向延伸的周向排列的滑动引导件。 弹性密封环在重叠接头处密封外管道和排气混合器之间的径向游隙。

公开(公告)号：US20150081101A1

公开(公告)日：2015-03-19

申请号：US14347025

申请日：2011-09-28

申请人： Satoru Watanabe

发明人： Satoru Watanabe

IPC分类号： F01B25/00 ,  G05B15/02

CPC分类号： F01B25/00 ,  F02D41/068 ,  F02D41/2416 ,  F02D41/2422 ,  F02D41/266 ,  F02D2200/021 ,  F02D2200/0414 ,  F02D2200/501 ,  G05B15/02

摘要： It is a task of the invention to make it possible to calculate a control target value of one actuator or control target values of a plurality of actuators regarding engine control at a high speed through the use of a multicore processor. With a view to accomplishing this task, a plurality of lattice points that are arranged on a two-dimensional orthogonal coordinate system having axes representing a first operating condition and a second operating condition respectively are associated respectively with at least one or some of a plurality of cores that are arranged in a latticed manner on the multicore processor on one-on-one level on a same line as on the two-dimensional orthogonal coordinate system, and a calculation program for calculating an optimal control value at the associated lattice point or calculation programs for calculating optimal control values at the associated lattice points are allocated respectively to at least one or some of the plurality of the cores. In addition, each of the cores with which the lattice points are associated respectively is programmed, in a case where an operation area on the two-dimensional orthogonal coordinate system to which a current operating point belongs is an area that is defined by the lattice point associated with each of the cores itself, to transmit, to an interpolation calculation core, an optimal control value at the relevant lattice point that is calculated by each of the cores itself. The interpolation calculation core is programmed to perform an interpolation calculation of an optimal control value at the current operating point using optimal control values at all the lattice points that define the operation area on the two-dimensional orthogonal coordinate system to which the current operating point belongs. In addition, the multicore processor outputs the optimal control value at the current operating point, which is obtained from the interpolation calculation core, as a control target value of each of the actuators.

公开(公告)号：US08689552B2

公开(公告)日：2014-04-08

申请号：US13508085

申请日：2009-11-17

申请人： Akitoshi Iwata

发明人： Akitoshi Iwata

IPC分类号： F02B33/44 ,  F01B25/00

CPC分类号： F04D29/462 ,  F05D2250/52

摘要： A centrifugal compressor is provided with: a housing which houses a compressor wheel therein; a spiral scroll arranged in an outer periphery of the compressor wheel; and a diffuser portion provided as a path space communicating with the scroll from an outlet side of the compressor wheel and formed by a compressor housing and a center housing. The centrifugal compressor is also provided with a movable vane which is movable between a projecting position where the movable vane projects from the compressor housing and a housing position where the movable vane houses in a housing portion provided in compressor housing, and an actuator which drives the movable vane between the projecting position and the housing position. The actuator is provided in the center housing.

摘要翻译： 一种离心式压缩机设有：一个容纳压缩机叶轮的壳体; 设置在所述压缩机叶轮的外周的螺旋形涡卷; 以及扩散部，其设置为从压缩机叶轮的出口侧与涡旋件连通并由压缩机壳体和中心壳体形成的路径空间。 离心式压缩机还设置有可动叶片，该活动叶片可在可动叶片从压缩机壳体突出的突出位置与可移动叶片容纳在设置在压缩机壳体中的壳体部分中的壳体位置之间移动;以及致动器， 活动叶片在突出位置和壳体位置之间。 致动器设置在中心壳体中。

公开(公告)号：US08522524B2

公开(公告)日：2013-09-03

申请号：US13121303

申请日：2009-08-19

申请人： Aaron J. Stevens ,  David S. Knott

发明人： Aaron J. Stevens ,  David S. Knott

IPC分类号： F02C7/00 ,  F01B25/00

CPC分类号： E21B41/0064 ,  C01B32/50 ,  Y02C10/14 ,  Y10T137/86035 ,  Y10T137/86131 ,  Y10T137/86163

摘要： A compressor is provided for pressurizing carbon dioxide produced by a carbon dioxide production plant and introducing the pressurized carbon dioxide to a carbon dioxide sequestration system. The compressor has a measuring system which determines the amount of carbon dioxide produced by the production plant. It also has a control system which varies the power of the compressor depending on the determined amount of produced carbon dioxide.

摘要翻译： 提供压缩机，用于对由二氧化碳生产设备生产的二氧化碳进行加压，并将加压的二氧化碳引入二氧化碳封存系统。 压缩机具有测量系统，该系统确定生产工厂生产的二氧化碳的量。 它还具有根据所确定的产生的二氧化碳量来改变压缩机的功率的控制系统。

公开(公告)号：US20130192453A1

公开(公告)日：2013-08-01

申请号：US13876134

申请日：2011-10-18

申请人： Franck Bonny

发明人： Franck Bonny

IPC分类号： F01B25/00

CPC分类号： F01B25/00 ,  B64C13/503

摘要： The invention provides a motor-driven movement system for moving a movable element, the system comprising at least two actuators, each provided with means connecting it to the movable element and each dimensioned to be capable, on its own, of driving the movable element, a central control unit being connected to the two actuators in order to be capable of sending a position setpoint (Pos1, Pos2) to one or other of the actuators. According to the invention, the system further comprises control means for simultaneously controlling both actuators in terms of force in response to the position setpoint sent to one of the actuators. The invention also provides a method of driving such a system and a method of testing such a system.

摘要翻译： 本发明提供了一种用于移动可移动元件的电机驱动运动系统，该系统包括至少两个致动器，每个致动器设置有将其连接到可移动元件的装置，并且每个致动器的尺寸设计成能够自行驱动可移动元件， 中央控制单元连接到两个致动器，以便能够向一个或另一个致动器发送位置设定点（Pos1，Pos2）。 根据本发明，该系统还包括控制装置，用于响应于发送到致动器中的一个的位置设定，同时控制两个致动器的力。 本发明还提供了一种驱动这种系统的方法和一种测试这种系统的方法。

公开(公告)号：US08249826B1

公开(公告)日：2012-08-21

申请号：US13445046

申请日：2012-04-12

申请人： Robb G. Anderson ,  Thomas L. Beck

发明人： Robb G. Anderson ,  Thomas L. Beck

IPC分类号： G06F11/30 ,  F04B49/06 ,  F01B25/00

CPC分类号： G01F1/80 ,  E21B47/042 ,  F04D13/10 ,  F04D15/0066 ,  F04D15/0088 ,  G01F1/78 ,  G01F23/00 ,  G01F23/22 ,  G05B17/02 ,  G05D9/12

摘要： A method and apparatus for determining a fluid level and/or output flow during operation of a centrifugal pump, are provided, which may be used for production of gas and/or oil from a well, and include a vector feedback model to derive values of torque and speed from signals indicative of instantaneous current and voltage drawn by the pump motor, a pump model which derives values of the fluid flow rate and the head pressure for the pump from torque and speed inputs, a pumping system model that derives, from the estimated values of the pump operating parameters, an estimated value of fluid level and other pumping system parameters. Controllers responsive to the estimated values of the pumping system parameters control the pump to maintain fluid level at the pump input, near an optimum level, or within a safe operating range and/or output flow from the pump.

公开(公告)号：US08235647B2

公开(公告)日：2012-08-07

申请号：US12314329

申请日：2008-12-08

申请人： Arnaud Pisseloup ,  Brian Giessel

发明人： Arnaud Pisseloup ,  Brian Giessel

IPC分类号： F01B25/00

CPC分类号： F02C7/06 ,  F01D25/16 ,  F01D25/18

摘要： A gas turbine has a rear bearing chamber 2 including a bearing arrangement 1. A vent valve 14 vents the bearing chamber 2 as a function of relative pressure of the bearing chamber.

摘要翻译： 燃气轮机具有包括轴承装置1的后轴承室2.排气阀14作为轴承室的相对压力的函数排出轴承室2。