公开(公告)号：US09200597B1

公开(公告)日：2015-12-01

申请号：US13572809

申请日：2012-08-13

Applicant: Alex Pinera

Inventor： Alex Pinera

IPC: F02K9/97 ,  F02K9/80

CPC classification number: F02K9/976 ,  F02K9/80

Abstract: An extendable nozzle for a rocket engine includes a chamber with a main combustion chamber and a throat and a main nozzle formed within a guide tube, where a nozzle extension slides over the guide tube from a stowed position to an extendable position. A locking O-ring secures the nozzle extension in a stowed position, and a locking split ring holds the nozzle extension in the extended position.

Abstract translation: 用于火箭发动机的可延伸喷嘴包括具有主燃烧室和喉部的腔室和形成在引导管内的主喷嘴，其中喷嘴延伸部从引导管从收起位置滑动到可延伸位置。 锁定O形环将喷嘴延伸部固定在收起位置，并且锁定开口环将喷嘴延伸部保持在延伸位置。

公开(公告)号：US08220267B1

公开(公告)日：2012-07-17

申请号：US12571579

申请日：2009-10-01

Applicant: Elizabeth V Stein ,  Alex Pinera

Inventor： Elizabeth V Stein ,  Alex Pinera

IPC: F02C7/24

CPC classification number: F02K9/46 ,  F02C7/24 ,  F02K9/563 ,  F05D2260/80

Abstract: A Helmholtz resonator is used to detect a presence of a two-phase flow in a conduit. The resonator is sized so that a range of frequencies it is tuned for corresponds to a change in the speed of sound as the fluid changes from all liquid, to liquid plus vapor, and to all vapor. A band-pass filter is used to cancel out any external noise that would pollute the signal from the resonator. The resonator is used to monitor for a two-phase flow occurring within a feed line leading into a turbopump of a rocket engine.

Abstract translation: 亥姆霍兹共振器用于检测导管中两相流的存在。 谐振器的尺寸使得其调谐的频率范围对应于随着流体从所有液体，液体加蒸汽和全部蒸汽变化而产生的声速变化。 使用带通滤波器来抵消会污染来自谐振器的信号的任何外部噪声。 谐振器用于监测在通向火箭发动机的涡轮泵的进料管线内发生的两相流。

公开(公告)号：US07445424B1

公开(公告)日：2008-11-04

申请号：US11409925

申请日：2006-04-22

Applicant: Todd A. Ebert ,  Alex Pinera ,  Antonio Negron

Inventor： Todd A. Ebert ,  Alex Pinera ,  Antonio Negron

IPC: F01D11/04

CPC classification number: F01D11/001 ,  F01D5/081 ,  F05D2240/56 ,  F05D2260/14 ,  F05D2300/50212 ,  F16J15/3288

Abstract: In a gas turbine engine having a rim cavity formed between a rotor disk and a stator, and a brush seal or other seal member providing an airflow seal between the stator and a side plate of the rotor disk, a thermally responsive valve device is located in the bypass passage of the stator to form a parallel air flow path with the brush seal. As the brush seal wears and the leakage airflow around the worn brush seal increases, the air flow temperature in the rim cavity would decrease. The thermally responsive valve device would detect the decreasing airflow temperature, and reduce the airflow passing through the bypass passage in order to prevent the temperature of the rim cavity from decreasing. The temperature responsive valve device makes use of a bimetallic valve member that regulates airflow based upon temperature.

Abstract translation: 在具有形成在转子盘和定子之间的边缘空腔的燃气涡轮发动机中，以及在定子和转子盘的侧板之间提供气流密封的刷密封件或其他密封构件，热响应阀装置位于 定子的旁路通道与刷密封件形成平行的空气流动路径。 当刷子密封件磨损并且磨损的刷密封件周围的泄漏气流增加时，轮辋腔中的空气流动温度将降低。 热响应阀装置将检测气流温度的降低，并且减少通过旁路通道的气流，以防止边缘腔的温度降低。 温度响应阀装置利用基于温度来调节气流的双金属阀构件。

公开(公告)号：US09709458B1

公开(公告)日：2017-07-18

申请号：US14623007

申请日：2015-02-16

Applicant: Elizabeth D Garvin ,  Timothy J Miller ,  Alex Pinera

Inventor： Elizabeth D Garvin ,  Timothy J Miller ,  Alex Pinera

IPC: G01M3/38 ,  G01J3/50 ,  G01M3/04 ,  F02K9/00

CPC classification number: G01M3/38 ,  F02K9/00 ,  G01J3/50 ,  G01M3/042 ,  G01N21/78

Abstract: A hydrocarbon leak detection sensor having a hydrocarbon indicator paint applied to a surface exposed to a flow in which the presence of a hydrocarbon is detected. The sensor is located at a low point in a static drain line that is connected to a main fuel line of a liquid propellant rocket engine between a main fuel valve and a fuel injector of a combustion chamber. The sensor includes a housing with a flow inlet port and a flow outlet port with an optical device opposed to a removable plug that secures a target disk with a hydrocarbon indicator paint applied to an exposed surface. A light source is used to illuminate the hydrocarbon indicator that changes color from white to red in the presence of a hydrocarbon.

公开(公告)号：US08083469B1

公开(公告)日：2011-12-27

申请号：US12408016

申请日：2009-03-20

Applicant: Alex Pinera

Inventor： Alex Pinera

IPC: F01D11/00

CPC classification number: F01D25/18 ,  F01D25/16 ,  F05D2260/20 ,  F05D2300/509 ,  Y02T50/671 ,  Y02T50/676 ,  Y10S384/907

Abstract: A bearing lubrication system for a high temperature bearing, such as in a small gas turbine engine for a UAV, in which the bearing and lubricant requires a long shelf life, where the bearing includes a solid lubricant movable within a chamber formed within a housing and located adjacent to the bearing. The solid lubricant is biased by a spring toward the bearing and abuts against a runner that rotates along with the rotor shaft during engine operation. A cooling air passage opens into a space formed between the bearing and the solid lubricant to supply cooling air through the bearing. When the engine operates, heat is transferred through the runner to the solid lubricant to melt the lubricant. Rubbing of the runner against the biased solid lubricant will also melt the lubricant. The melting lubricant is carried by the cooling air through the bearing to provide both cooling and lubrication for the bearing.

Abstract translation: 一种用于高温轴承的轴承润滑系统，例如在用于UAV的小型燃气涡轮发动机中，其中轴承和润滑剂需要较长的保质期，其中轴承包括在形成于壳体内的室内可移动的固体润滑剂， 位于轴承附近。 固体润滑剂由弹簧朝向轴承偏置，并与发动机运转期间与转子轴一起转动的转轮抵接。 冷却空气通道通向轴承和固体润滑剂之间形成的空间，以通过轴承供应冷却空气。 当发动机运转时，热量通过流道传递到固体润滑剂以熔化润滑剂。 将润滑剂摩擦偏压的固体润滑剂也会使润滑剂熔化。 熔化润滑剂由冷却空气通过轴承承载，为轴承提供冷却和润滑。

公开(公告)号：US07748959B1

公开(公告)日：2010-07-06

申请号：US11787559

申请日：2007-04-17

Applicant: Alex Pinera ,  Todd A. Ebert

Inventor： Alex Pinera ,  Todd A. Ebert

IPC: F01D5/08

CPC classification number: F01D5/08 ,  F02K9/48 ,  F05D2250/621 ,  F05D2300/504

Abstract: A turbine disc used in a turbo-pump that is exposed to a large thermal gradient across the sides of the rotor disc. The warm side of the turbine disc is covered by a cover plate that forms a sealed space between the turbine disc and the cover plate, and this space is evacuated or insulated to form a complete vacuum or as near as a complete vacuum as possible. The surfaces of the turbine disc and cover plate that form the vacuum space are also coated with a reflective coating such as with a highly polished surface of low emissivity in order to minimize the radiation heat loss through the vacuum space. The turbine disc can have a cover plate forming a vacuum space or insulated cavity on both sides of the turbine disc. Ribs are also used within the vacuum space as supports for the cover plate due to the difference in pressure from the ambient side and the vacuum.

Abstract translation: 在涡轮泵中使用的涡轮盘，其在转子盘的侧面上暴露于大的热梯度。 涡轮盘的温暖的一侧由盖板覆盖，该盖板在涡轮盘和盖板之间形成密封空间，并且该空间被抽空或绝缘以形成尽可能接近完全真空的完全真空。 形成真空空间的涡轮盘和盖板的表面也涂覆有诸如具有低发射率的高抛光表面的反射涂层，以便使通过真空空间的辐射热损失最小化。 涡轮盘可以具有在涡轮盘的两侧形成真空空间或绝缘腔的盖板。 由于与环境侧和真空的压力差，在真空空间内还使用肋作为盖板的支撑。

公开(公告)号：US20160333737A1

公开(公告)日：2016-11-17

申请号：US14245199

申请日：2014-04-04

Applicant: Timothy J Miller ,  Alex Pinera

Inventor： Timothy J Miller ,  Alex Pinera

IPC: F01D25/22 ,  F02B37/04

CPC classification number: F01D25/22 ,  F02B37/04 ,  F05D2220/40

Abstract: A turbocharger for an internal combustion engine, the turbocharger being supported by hydrostatic bearings in both a radial and an axial direction by a compressed air supplied from a compressor of the turbocharger and boosted in pressure by a separate boost pump to a high enough pressure to support the rotor of the turbocharger.

Abstract translation: 一种用于内燃机的涡轮增压器，所述涡轮增压器通过由涡轮增压器的压缩机供应的压缩空气在径向和轴向方向上由静压轴承支撑，并通过单独的增压泵将压力提升到足够高的压力以支撑 涡轮增压器的转子。

公开(公告)号：US08177489B1

公开(公告)日：2012-05-15

申请号：US12892142

申请日：2010-09-28

Applicant: Alex Pinera ,  Frank W Huber

Inventor： Alex Pinera ,  Frank W Huber

IPC: F01D17/00

CPC classification number: F04D13/043

Abstract: An axial tip turbine driven pump in which a first fluid pumped by an inducer is driven by a second fluid that reacts with a turbine blade extending from a shroud on the inducer. The inducer includes a set of screw thread blades and a second set of partial blades that are covered by a shroud in the aft section of the inducer. A row of turbine blades extends from the shroud and into a manifold that forms the outer casing for the pump. The fluid flow through the manifold reacts with the turbine blades and drives the inducer to pump the fluid from the inlet and through guide vanes downstream from the inducer. Fluid from a pre-burner or a gas generator used to drive a main turbine is bled off and used to drive the low pressure turbine blades and the inducer.

Abstract translation: 轴向顶端涡轮驱动泵，其中由导流器泵送的第一流体由与从引导器上的护罩延伸的涡轮叶片反应的第二流体驱动。 诱导器包括一组螺纹叶片和第二组部分叶片，其由导流器的后部中的护罩覆盖。 一排涡轮叶片从护罩延伸到形成泵的外壳的歧管中。 通过歧管的流体流动与涡轮机叶片反应并驱动引导器以将流体从入口泵送并且通过导流器从引导器下游引导。 来自用于驱动主涡轮机的预燃烧器或气体发生器的流体被排出并用于驱动低压涡轮叶片和诱导器。

公开(公告)号：US08057165B1

公开(公告)日：2011-11-15

申请号：US12131069

申请日：2008-05-31

Applicant: Elizabeth D Garvin ,  William S Walsh ,  Elizabeth V Stein ,  Alex Pinera

Inventor： Elizabeth D Garvin ,  William S Walsh ,  Elizabeth V Stein ,  Alex Pinera

IPC: F01B25/26 ,  G01M3/04

CPC classification number: G01M3/042 ,  G01M3/143

Abstract: A hydrocarbon presence sensor used to detect for the presence of a fuel in a buffer cavity of an inter-propellant seal. A sensor is formed on a rotor shaft in the buffer cavity and an optical imaging device is used to view a change in appearance of the sensor when a hydrocarbon forms on the surface. In one embodiment, the sensor is a coating of porous silicon. In other embodiments, the sensor can be a mirrored or frosted surface on the shaft. A white light source or a laser is reflected off of the sensor and an optical imaging device reads the reflected light to detect for a change in color or intensity of the light to indicate if a hydrocarbon is present on the sensor surface.

Abstract translation: 用于检测在推进剂密封件的缓冲腔中存在燃料的烃存在传感器。 传感器形成在缓冲腔中的转子轴上，并且当在表面上形成烃时，使用光学成像装置来观察传感器的外观变化。 在一个实施例中，传感器是多孔硅的涂层。 在其他实施例中，传感器可以是轴上的镜面或磨砂表面。 白光源或激光被从传感器反射出来，并且光学成像装置读取反射光以检测光的颜色或强度的变化，以指示传感器表面上是否存在烃。

公开(公告)号：US07896550B1

公开(公告)日：2011-03-01

申请号：US11799651

申请日：2007-05-02

Applicant: Alex Pinera ,  Philip C. Pelfrey

Inventor： Alex Pinera ,  Philip C. Pelfrey

IPC: F16C32/06

CPC classification number: F16C33/109 ,  F05B2220/302 ,  F05B2240/53 ,  F16C17/02 ,  F16C17/10 ,  F16C33/106 ,  F16C33/1085 ,  F16C2300/54 ,  F16C2360/00

Abstract: A hydrodynamic liquid metal bearing capable of use in a high temperature environment. The hydrodynamic bearing includes a rotating shaft with a raised portion extending into an annular groove formed within a stationary sleeve, the space formed between the two forming the liquid bearing surface. The raised portion in the shaft includes an axial passage and a radial passage to pump the liquid into a high pressure cavity formed in the annular groove. A low pressure cavity forms a recirculating passage with the high pressure cavity and the axial and radial passages such that the liquid metal recirculates with the rotation of the shaft. A collecting space formed between a labyrinth seal and a wind back seal collects any fluid that leaks into the space from the bearing. The leaked fluid is collected in a reservoir, and a pump delivers makeup liquid from the reservoir into the low pressure reservoir of the bearing. The bearing is a radial bearing, and in another embodiment is both a radial and a thrust bearing.

Abstract translation: 能够在高温环境下使用的流体动力学液态金属轴承。 流体动力轴承包括旋转轴，其具有延伸到形成在静止套筒内的环形槽中的凸起部分，形成在形成液体承载表面的两者之间的空间。 轴中的凸起部分包括轴向通道和径向通道，以将液体泵送到形成在环形槽中的高压腔中。 低压腔形成具有高压腔和轴向和径向通道的循环通道，使得液体金属随着轴的旋转而再循环。 在迷宫式密封件和回风密封件之间形成的收集空间收集从轴承泄漏到空间中的任何流体。 泄漏的流体被收集在储存器中，并且泵将补充液体从储存器输送到轴承的低压储存器中。 轴承是径向轴承，在另一个实施例中是径向轴承和止推轴承。