公开(公告)号：US09546866B2

公开(公告)日：2017-01-17

申请号：US13855312

申请日：2013-04-02

Applicant: Marco Systemanalyse und Entwicklung GmbH

Inventor： Martin Reuter

IPC: G01P21/00 ,  G01C25/00 ,  G01B21/16 ,  F15B1/24

CPC classification number: G01B21/16 ,  F15B1/08 ,  F15B1/24 ,  F15B2201/31 ,  F15B2201/415 ,  F15B2201/42 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/6343

Abstract: An apparatus for determining the position of a movable separation element which is arranged within an accumulator as a separator between a gas space and a fluid space, wherein the determination apparatus comprises at least one pressure sensor for the detection of pressure data, at least one ultrasonic sensor for the detection of ultrasonic data and at least one calculation unit for the evaluation of the data with the aid of which determination apparatus the position of the separation element can be determined.

Abstract translation: 一种用于确定作为气体空间与流体空间之间的分离器而设置在蓄能器内的可动分离元件的位置的装置，其中所述确定装置包括用于检测压力数据的至少一个压力传感器，至少一个超声波 用于检测超声波数据的传感器和至少一个用于评估数据的计算单元，借助于哪个确定装置可以确定分离元件的位置。

公开(公告)号：US20130262010A1

公开(公告)日：2013-10-03

申请号：US13855312

申请日：2013-04-02

Applicant: MACRO SYSTEMANALYSE UND ENTWICKLUNG GMBH

Inventor： Martin Reuter

IPC: G01B21/16

CPC classification number: G01B21/16 ,  F15B1/08 ,  F15B1/24 ,  F15B2201/31 ,  F15B2201/415 ,  F15B2201/42 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/6343

Abstract: An apparatus for determining the position of a movable separation element which is arranged within an accumulator as a separator between a gas space and a fluid space, wherein the determination apparatus comprises at least one pressure sensor for the detection of pressure data, at least one ultrasonic sensor for the detection of ultrasonic data and at least one calculation unit for the evaluation of the data with the aid of which determination apparatus the position of the separation element can be determined

Abstract translation: 一种用于确定作为气体空间与流体空间之间的分离器而设置在蓄能器内的可动分离元件的位置的装置，其中所述确定装置包括用于检测压力数据的至少一个压力传感器，至少一个超声波 用于检测超声波数据的传感器和至少一个用于评估数据的计算单元，借助于哪个确定装置可以确定分离元件的位置

公开(公告)号：US20020035832A1

公开(公告)日：2002-03-28

申请号：US09933724

申请日：2001-08-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Eiji Nakamura ,  Hiroshi Mizukami

IPC: B60T008/36

CPC classification number: B60T8/4081 ,  B60T8/90 ,  B60T13/148 ,  B60T17/221 ,  F15B1/08 ,  F15B19/00 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/3158 ,  F15B2201/411 ,  F15B2201/415 ,  F15B2201/505 ,  F15B2201/51 ,  Y10S303/03 ,  Y10S303/11

Abstract: A diagnosing apparatus for diagnosing an accumulator operable to store under pressure a pressurized fluid delivered from a high-pressure source and to supply the pressurized fluid to a fluid-operated actuator for operating the fluid-operated actuator, the apparatus including a pressure detecting device for detecting a pressure of the pressurized fluid in the accumulator while the accumulator is placed in a fluid-tightly sealed state in which the accumulator is isolated from both the high-pressure source and the fluid-operated actuator, and a diagnosing device operable to diagnose the accumulator on the basis of the pressure of the pressurized fluid detected by the pressure detecting device in the fluid-tightly sealed state of the accumulator.

Abstract translation: 一种用于诊断蓄能器的诊断装置，其可操作以在压力下存储从高压源输送的加压流体，并将所述加压流体供应到用于操作所述流体操作的致动器的流体操作的致动器，所述装置包括压力检测装置， 当所述蓄能器处于流体密封状态，其中所述蓄能器与所述高压源和所述流体驱动致动器隔离时，检测所述蓄能器中的加压流体的压力，以及诊断装置， 基于由压力检测装置在储液器的流体密封状态下检测到的加压流体的压力的蓄能器。

公开(公告)号：US20180209451A1

公开(公告)日：2018-07-26

申请号：US15736444

申请日：2016-06-14

Applicant: Sikorsky Aircraft Corporation

Inventor： Brian D. LeFevre

IPC: F15B19/00 ,  F15B1/08 ,  F15B21/04

CPC classification number: F15B19/005 ,  B64C27/64 ,  B64F5/60 ,  F15B1/08 ,  F15B20/005 ,  F15B21/045 ,  F15B2201/205 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2211/6306 ,  F15B2211/6343

Abstract: A method for diagnosing leaks in a hydraulic accumulator includes measuring the time required to discharge the hydraulic accumulator to determine an actual discharge duration. The method includes comparing the actual discharge duration to an expected discharge duration to generate a condition indicator. The condition indicator correlates to the presence or absence of a leak.

公开(公告)号：US4788851A

公开(公告)日：1988-12-06

申请号：US91670

申请日：1987-09-01

Applicant: Francois Brault

Inventor： Francois Brault

IPC: F17B1/26 ,  F15B1/08 ,  F17C1/00 ,  F17C13/02 ,  G01M3/16

CPC classification number: F15B1/08 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3152 ,  F15B2201/41 ,  F15B2201/415 ,  F15B2201/50 ,  F15B2201/505

Abstract: A pressure vessel comprises an enclosure in which are a liquid orifice and a gas orifice spaced from the liquid orifice. A separator divides the enclosure into two variable volume chambers. One of these is a liquid chamber communicating with the liquid orifice and the other is a gas chamber communicating with the gas orifice. The separator has a transverse wall spaced from the gas and liquid orifices and movable inside the enclosure. There is an orifice in the enclosure communicating with the gas chamber through which there is passed into the gas chamber a sensor which is responsive at one end to the presence of a liquid. In a neutral position of this transverse wall the responsive end of the sensor is nearer the transverse wall than it is to the orifice in the enclosure through which it passes into the gas chamber. The sensor preferably comprises an optical probe.

Abstract translation: 压力容器包括外壳，其中是液体孔口和与液体孔口间隔开的气体孔口。 分离器将外壳分成两个可变容积室。 其中一个是与液体孔连通的液体室，另一个是与气体孔连通的气室。 分离器具有与气体和液体孔口间隔开并在外壳内可移动的横向壁。 外壳中的孔与气室连通，通过该孔通入气室，传感器在一端响应液体的存在。 在该横向壁的中间位置，传感器的响应端比其通过气室的外壳中的孔更接近横向壁。 传感器优选地包括光学探针。

公开(公告)号：US4487226A

公开(公告)日：1984-12-11

申请号：US534321

申请日：1983-09-21

Applicant: Hugh H. Chun

Inventor： Hugh H. Chun

IPC: F15B1/08 ,  F16L55/02

CPC classification number: F15B1/08 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/4155 ,  F15B2201/505

Abstract: A failure sensing accumulator device and to a system embodying the same. The accumulator and system are characterized in that various failure situations are sensed by a capacitive sensor apparatus which is capable of detecting failures at an early stage and localizing the damage to the system resulting from such failed accumulator.

Abstract translation: 故障检测蓄电池装置和体现其的系统。 蓄电池和系统的特征在于，各种故障情况由电容式传感器装置感测到，该电容式传感器装置能够检测早期的故障并且定位由这种失效的蓄电池引起的对系统的损坏。

公开(公告)号：US20180222599A1

公开(公告)日：2018-08-09

申请号：US15888120

申请日：2018-02-05

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： Christopher PAPADOPOULOS ,  Matthew MARPLES ,  Andy MOUNTY ,  Costas FANOURAKIS ,  Graham KING

IPC: B64D45/00 ,  B64C25/22 ,  B64C25/34

CPC classification number: B64D45/0005 ,  B64C13/48 ,  B64C25/22 ,  B64C25/34 ,  B64C25/58 ,  B64D45/00 ,  B64D2045/0085 ,  B64F5/60 ,  F15B1/021 ,  F15B1/24 ,  F15B15/1409 ,  F15B19/005 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/505 ,  F15B2211/212 ,  F15B2211/6336

Abstract: A landing gear system for an aircraft includes a retractable landing gear assembly, a hydraulic actuator for actuating movement part, for example a bogie of the landing gear assembly, and an accumulator associated with the actuator. The accumulator comprises a volume of pressurised gas separated from hydraulic fluid by a separator piston. Travel of the separator piston beyond a certain position is indicative of a fault. The accumulator includes a snubbing device that acts to slow movement of the separator piston beyond that position. A monitoring system measures the time taken for the movement of the landing gear part effected by the hydraulic actuator. If the measured time is longer than a threshold time, that is indicative of a possible fault in the accumulator, that might, without the snubbing, remain undetected and/or hidden from view.

公开(公告)号：US09366269B2

公开(公告)日：2016-06-14

申请号：US13427095

申请日：2012-03-22

Applicant: Dayao Chen ,  Pengfei Ma ,  Tonglin Shang ,  Bryan J. Hillman

Inventor： Dayao Chen ,  Pengfei Ma ,  Tonglin Shang ,  Bryan J. Hillman

IPC: G01F17/00 ,  G01M3/02 ,  F15B1/033

CPC classification number: F15B1/033 ,  F15B2201/505 ,  F15B2201/51

Abstract: A system to diagnose a health of a hydraulic accumulator is provided. The hydraulic accumulator includes a first fluid chamber, a second fluid chamber, and a separator. The hydraulic accumulator has an associated pre-charge pressure. The system further includes a pressure sensor, a fluid source, a data processor, and a comparator. The pressure sensor and the fluid source are connected to the first fluid chamber. The data processor is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre-charge pressure is determined based on the transition pressure. The comparator is configured to compare at least one of the determined pre charge pressure and the frictional forces with a pre-determined threshold range of pre-charge pressure and the frictional forces associated with the hydraulic accumulator to diagnose the health of the hydraulic accumulator.

Abstract translation: 提供了一种用于诊断液压蓄能器健康的系统。 液压蓄能器包括第一流体室，第二流体室和分离器。 液压蓄能器具有相关的预充压力。 该系统还包括压力传感器，流体源，数据处理器和比较器。 压力传感器和流体源连接到第一流体室。 数据处理器被配置为确定压力变化的第一和第二速率以及第一和第二速率之间的过渡压力。 基于过渡压力确定近似预充压力。 比较器被配置为将所确定的预充气压力和摩擦力中的至少一个与预充压力的预定阈值范围和与液压蓄能器相关联的摩擦力进行比较，以诊断液压蓄能器的健康状况。

公开(公告)号：US20150217747A1

公开(公告)日：2015-08-06

申请号：US14527930

申请日：2014-10-30

Applicant: GOODRICH CORPORATION

Inventor： Eric D. Cahill ,  Paul R. Burte

IPC: B60T17/22 ,  B60T13/14

CPC classification number: B60T17/221 ,  B60T13/14 ,  F15B1/24 ,  F15B19/005 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/505 ,  F15B2201/51

Abstract: A method of detecting an accumulator failure is provided. The method may comprise measuring a first pressure on a gas-side of an accumulator, measuring a second pressure on a fluid-side of the accumulator, finding a difference between the first pressure and the second pressure, and comparing the difference to a predetermined threshold. A system for detecting an accumulator failure is also provided. The system may comprise a non-transitory memory communicating with a processor, the non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations. The operations may include receiving a first pressure measurement, receiving a second pressure measurement, determining a difference between the first pressure measurement and the second pressure measurement, and detecting the accumulator failure based on the difference.

Abstract translation: 提供了一种检测蓄电池故障的方法。 该方法可以包括测量蓄能器的气体侧上的第一压力，测量蓄能器的流体侧上的第二压力，找到第一压力和第二压力之间的差，并将差值与预定阈值进行比较 。 还提供了一种用于检测蓄电池故障的系统。 系统可以包括与处理器通信的非暂时性存储器，其中存储有指令的非瞬态存储器响应于处理器的执行使得处理器执行操作。 操作可以包括接收第一压力测量值，接收第二压力测量值，确定第一压力测量值和第二压力测量值之间的差值，以及基于该差值来检测累加器故障。

公开(公告)号：US5520053A

公开(公告)日：1996-05-28

申请号：US374720

申请日：1995-01-27

Applicant: Norbert Weber ,  Karl-Heinz Leichner

Inventor： Norbert Weber ,  Karl-Heinz Leichner

IPC: G01L11/00 ,  F15B1/08 ,  F15B1/24 ,  F15B19/00

CPC classification number: F15B19/00 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/41 ,  F15B2201/415 ,  F15B2201/505

Abstract: An ultrasound testing device for gas pressure accumulators is used to test a predeterminable set position that can be taken by a movable separating element inside an accumulator filled with gas and connected to a fluid circuit. The separating element has at least one testing body associated with a visible mark which indicates the set position of the separating element. An ultrasound testing device on a testing body can be set on the accumulator in alignment with the visible mark. This testing device allows a plurality of accumulators of the same type to be tested for their predeterminable gas pressure set value, which corresponds to the gas pre-filling pressure, by a single hand apparatus. This kind of test is economical and achieves reliable results.

Abstract translation: PCT No.PCT / EP93 / 01964。 371日期：1995年1月27日 102（e）日期1995年1月27日PCT提交1993年7月23日PCT公布。 出版物WO94 / 04898 日期为1994年3月3日。用于气体压力蓄能器的超声波测试装置用于测试可由可充分气体的蓄能器内的可移动分离元件采取的连接到流体回路的可预定的设定位置。 分离元件具有与可见标记相关联的至少一个测试体，其指示分离元件的设定位置。 测试体上的超声波检测装置可以设置在与可见标记对准的蓄电池上。 该测试装置允许通过单手装置测试相同类型的多个蓄能器对应于气体预充压力的可预定气体压力设定值。 这种测试是经济的并且可以获得可靠的结果。