Pressure-gain combustion apparatus and method

    公开(公告)号:US10060618B2

    公开(公告)日:2018-08-28

    申请号:US14441098

    申请日:2013-11-07

    发明人: Alejandro Juan

    摘要: A pressure gain combustor comprises a detonation chamber, a pre-combustion chamber, an oxidant swirl generator, an expansion-deflection (E-D) nozzle, and an ignition source. The detonation chamber has an upstream intake end and a downstream discharge end, and is configured to allow a supersonic combustion event to propagate therethrough. The pre-combustion chamber has a downstream end in fluid communication with the detonation chamber intake end, an upstream end in communication with a fuel delivery pathway, and a circumferential perimeter between the upstream and downstream ends with an annular opening in communication with an annular oxidant delivery pathway. The oxidant swirl generator is located in the oxidant delivery pathway and comprises vanes configured to cause oxidant flowing past the vanes to flow tangentially into the pre-combustion chamber thereby creating a high swirl velocity zone around the annular opening and a low swirl velocity zone in a central portion of the pre-combustion chamber. The E-D nozzle is positioned in between the pre-combustion chamber and detonation chamber and provides a diffusive fluid pathway therebetween. The ignition source is in communication with the low swirl velocity zone of the pre-combustion chamber. This configuration is expected to provide a combustor with a relatively low total run-up DDT distance and time, thereby enabling high operating frequencies and corresponding high combustor performance.

    Positive displacement expander
    3.
    发明授权
    Positive displacement expander 有权
    正位移扩张器

    公开(公告)号:US09121275B2

    公开(公告)日:2015-09-01

    申请号:US13720084

    申请日:2012-12-19

    摘要: Provided herein are multiple variations, applications, and variations for producing electrical power from a flowing fluid such as a gas or liquid under pressure, for example natural gas flowing through a pipeline, by means of one or more positive displacement devices that drive one or more electrical generators. The electrical generators may be immersed in the flow stream together with the positive displacement devices as disclosed, or alternately may be isolated from the flow stream, such as by magnetic coupling, in order to promote longevity and to decrease the risk of accidental discharge or explosion of the fluid in the flow stream. To further decrease such risks, the positive displacement devices may isolate the drive fluid from the environment without the use of dynamic seals.

    摘要翻译: 本文提供了多种变化,应用和变化,用于通过一个或多个驱动一个或多个位置的正位移装置从流动的流体(例如压力下的气体或液体,例如流过管道的天然气)产生电力 发电机 发电机可以与所公开的正位移装置一起浸入流动流中,或者可以例如通过磁耦合与流动流隔离,以促进寿命并降低意外排放或爆炸的风险 的流体中的流体。 为了进一步减少这种风险,正排量装置可以将驱动流体与环境隔离,而不使用动态密封。

    Apparatus and Method for Controlling a Pressure Gain Combustor
    4.
    发明申请
    Apparatus and Method for Controlling a Pressure Gain Combustor 审中-公开
    用于控制增压燃烧器的装置和方法

    公开(公告)号:US20140260294A1

    公开(公告)日:2014-09-18

    申请号:US14114697

    申请日:2012-04-27

    发明人: Soheil Farshchian

    摘要: A method of controlling operation of a pressure gain combustor comprises: determining a fuel injector duty cycle and a combustion frequency that meets a target load set point and a target fill fraction of the combustor; determining a fuel supply pressure setting, a fuel injector timing setting and an ignition timing setting that achieves the determined fuel injector duty cycle and combustion frequency; and sending a fuel supply pressure control signal with the fuel supply pressure setting to a fuel pressurizing means of the combustor, a fuel injector control signal with the fuel injector timing setting to a fuel injector of the combustor, and an ignition timing control signal with the ignition timing setting to an ignition assembly of the combustor.

    摘要翻译: 一种控制压力增益燃烧器的操作的方法包括:确定燃料喷射器占空比和燃烧频率,其满足燃烧器的目标负荷设定点和目标填充部分; 确定燃料供应压力设置,燃料喷射器正时设置和实现所确定的燃料喷射器占空比和燃烧频率的点火正时设置; 以及向所述燃烧器的燃料加压装置发送具有所述燃料供给压力设定的燃料供给压力控制信号,将燃料喷射器正时设定为燃料喷射器定时的燃料喷射器控制信号设定到所述燃烧器的燃料喷射器,以及点火正时控制信号, 点火正时设置到燃烧器的点火组件。

    Positive Displacement Expander
    7.
    发明申请
    Positive Displacement Expander 有权
    正位移扩张器

    公开(公告)号:US20130200634A1

    公开(公告)日:2013-08-08

    申请号:US13720084

    申请日:2012-12-19

    IPC分类号: F01C19/00 H02K7/18 F01C21/00

    摘要: Provided herein are multiple variations, applications, and variations for producing electrical power from a flowing fluid such as a gas or liquid under pressure, for example natural gas flowing through a pipeline, by means of one or more positive displacement devices that drive one or more electrical generators. The electrical generators may be immersed in the flow stream together with the positive displacement devices as disclosed, or alternately may be isolated from the flow stream, such as by magnetic coupling, in order to promote longevity and to decrease the risk of accidental discharge or explosion of the fluid in the flow stream. To further decrease such risks, the positive displacement devices may isolate the drive fluid from the environment without the use of dynamic seals.

    摘要翻译: 本文提供了多种变化,应用和变化,用于通过一个或多个驱动一个或多个位置的正位移装置从流动的流体(例如压力下的气体或液体,例如流过管道的天然气)产生电力 发电机 发电机可以与所公开的正位移装置一起浸入流动流中,或者可以例如通过磁耦合与流动流隔离,以促进寿命并降低意外排放或爆炸的风险 的流体中的流体。 为了进一步减少这种风险,正排量装置可以将驱动流体与环境隔离,而不使用动态密封。

    Rotary Fluid Flow Device
    8.
    发明申请

    公开(公告)号:US20190271317A1

    公开(公告)日:2019-09-05

    申请号:US16219692

    申请日:2018-12-13

    IPC分类号: F04C29/04 F04C18/56

    摘要: A positive displacement device that converts energy, namely positive displacement compressors that rotate in a single rotational direction to displace working fluid contained in operating chambers. The device described herein is particularity advantageous for the ability to achieve high compression ratios in combination with high discharge pressure and high volumetric throughput in a single stage.

    Dual Axis Rotor
    10.
    发明申请
    Dual Axis Rotor 有权
    双轴转子

    公开(公告)号:US20140271301A1

    公开(公告)日:2014-09-18

    申请号:US13840514

    申请日:2013-03-15

    IPC分类号: F04C2/00

    摘要: This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor.

    摘要翻译: 本公开涉及具有高功率质量比和低生产成本的先进的章动正位移装置。 在一个示例中,该装置形成示例性泵,如将在下面详细讨论的。 本文公开的实例是旋转正位移型,但是在一个类中。 这些装置由具有包括裂片和谷部的面的章动转子和固定的定子构成,该定子还具有带有凸起和谷部的面。 转子的表面与定子的表面相反并配合。 相对的面限定了随转子旋转而改变体积的室。