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公开(公告)号：EP0656109A1
公开(公告)日：1995-06-07
申请号：EP93917633.0
申请日：1993-07-23
Applicant: HYDAC TECHNOLOGY GMBH
Inventor： WEBER, Norbert , LEICHNER, Karl-Heinz
CPC classification number: F15B19/00 , F15B1/08 , F15B2201/205 , F15B2201/312 , F15B2201/41 , F15B2201/415 , F15B2201/505
Abstract: An ultra-sound testing device for gas pressure accumulators is used to test a predeterminable set position that can be taken by a movable separating element (20) inside an accumulator (10) that can be filled with gas and connected to a fluid circuit. The separating element (20) has at least one testing body associated with a visible mark (34) which indicates the set position of the separating element (20), and on the basis of which an ultra-sound testing device provided for the respective testing body can be set on the accumulator (10). 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 means of a single hand apparatus. This kind of test is economical and achieves reliable results.
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公开(公告)号：JP2013224735A
公开(公告)日：2013-10-31
申请号：JP2013076124
申请日：2013-04-01
Applicant: Marco Systemanalyse Und Entwicklung Gmbh , マルコ ズュステームアナリューゼ ウント エントヴィックルング ゲーエムベーハーMarco Systemanalyse und Entwicklung GmbH
Inventor： REUTER MARTIN
CPC classification number: G01B21/16 , F15B1/08 , F15B1/24 , F15B2201/31 , F15B2201/415 , F15B2201/42 , F15B2201/505 , F15B2201/51 , F15B2201/515 , F15B2211/6343
Abstract: PROBLEM TO BE SOLVED: To precisely determine the position of a separation element with a simplified manner of construction.SOLUTION: A position determination apparatus is an apparatus for determining the position of a movable separation element 10 which is arranged within an accumulator 12 as a separator between a gas space 14 and a fluid space 16, wherein the determination apparatus includes at least one pressure sensor 26 for detection of pressure data, at least one ultrasonic sensor 28 for detection of ultrasonic data and at least one calculation unit 30 for evaluation of the data, with the aid of which determination apparatus, the position of the separation element 10 can be determined. The determination apparatus further includes at least one temperature sensor 32 for detection of temperature data.
Abstract translation: 要解决的问题：以简化的结构方式精确地确定分离元件的位置。解决方案：位置确定装置是用于确定可移动分离元件10的位置的装置，该可移动分离元件10布置在作为分离器的蓄能器12内 在气体空间14和流体空间16之间，其中确定装置包括用于检测压力数据的至少一个压力传感器26，用于检测超声波数据的至少一个超声波传感器28和用于评估超声波数据的至少一个计算单元30 借助于该确定装置可以确定分离元件10的位置的数据。 确定装置还包括用于检测温度数据的至少一个温度传感器32。
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公开(公告)号：JP3513096B2
公开(公告)日：2004-03-31
申请号：JP2000290644
申请日：2000-09-25
Applicant: トヨタ自動車株式会社 , 日本発条株式会社
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
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公开(公告)号：US09533667B2
公开(公告)日：2017-01-03
申请号：US14527930
申请日：2014-10-30
Applicant: GOODRICH CORPORATION
Inventor： Eric D. Cahill , Paul R. Burte
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。
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公开(公告)号：US20140060030A1
公开(公告)日：2014-03-06
申请号：US13908012
申请日：2013-06-03
Applicant: Caterpillar Inc.
Inventor： Pengfei Ma , Dayao Chen , Randal Peterson
IPC: E02F9/12
CPC classification number: E02F9/123 , E02F9/2025 , E02F9/2217 , E02F9/2296 , F15B1/024 , F15B1/033 , F15B1/24 , F15B19/005 , F15B2201/31 , F15B2201/505 , F15B2201/51 , F15B2211/625 , F15B2211/6306 , F15B2211/6653 , F15B2211/7058 , F15B2211/855 , F15B2211/857 , F15B2211/87
Abstract: A system and method to diagnose the operational health of a hydraulic accumulator are provided. The system can include a hydraulic accumulator selectively coupled to a hydraulic actuator, such as a swing motor. The accumulator can be charged by movement of the actuator. A pressure sensor can be associated with the accumulator to determine an accumulator pressure. A controller can be connected to the pressure sensor. The controller can determine a charge curve based on a relationship between an actuator operational parameter associated with the actuator movement and the accumulator pressure. The controller can compare the charge curve to a previously defined charge curve or range to determine an error between the charge curve and the previously defined charge curve or range. The degree of the error can be associated with the operational health of the accumulator, and if too large, the operator may be notified of the status.
Abstract translation: 提供了一种用于诊断液压蓄能器的操作健康的系统和方法。 该系统可以包括选择性地联接到诸如回转马达的液压致动器的液压蓄能器。 蓄能器可以由致动器的移动来充电。 压力传感器可以与蓄能器相关联，以确定蓄能器的压力。 控制器可以连接到压力传感器。 控制器可以基于与致动器运动相关联的致动器操作参数与蓄能器压力之间的关系来确定充气曲线。 控制器可以将充电曲线与先前定义的充电曲线或范围进行比较，以确定充电曲线与先前定义的充电曲线或范围之间的误差。 错误的程度可以与累加器的运行状况相关联，如果过大，可能会向操作员通知状态。
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Patent Agency Ranking
公开(公告)号：US20130253854A1
公开(公告)日：2013-09-26
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: G06F19/00
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。
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公开(公告)号：US20030056711A1
公开(公告)日：2003-03-27
申请号：US09963775
申请日：2001-09-26
Inventor： Brian R. Tranter
IPC: G01L019/10
CPC classification number: F15B1/08 , F15B2201/205 , F15B2201/30 , F15B2201/505 , F15B2201/51 , G01L7/061 , G01L7/063
Abstract: A pressure indication device including a housing with an opening in communication with a pressure vessel, a plunger moveable in the housing between a pressurized position and a non-pressurized position, a seal between the opening and the plunger, an indicator over the plunger and biased into a flag position, and a locking mechanism for holding the indicator in a set position until the plunger moves to the non-pressurized position whereupon the indicator returns to the flag position.
Abstract translation: 压力指示装置，包括具有与压力容器连通的开口的壳体，可在所述壳体中在加压位置和非加压位置之间移动的柱塞，所述开口和所述柱塞之间的密封件，所述柱塞上的指示器和偏置 以及用于将指示器保持在设定位置的锁定机构，直到柱塞移动到非加压位置，从而指示器返回到标志位置。
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28.发明授权公开(公告)号：US06494545B2
公开(公告)日：2002-12-17
申请号：US09933724
申请日：2001-08-22
Applicant: Eiji Nakamura , Hiroshi Mizukami
Inventor： Eiji Nakamura , Hiroshi Mizukami
IPC: B60T1704
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.
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公开(公告)号：US4428401A
公开(公告)日：1984-01-31
申请号：US407564
申请日：1982-08-12
Applicant: Hugh H. Chun
Inventor： Hugh H. Chun
CPC classification number: F15B1/08 , F15B2201/205 , F15B2201/3152 , F15B2201/411 , F15B2201/4155 , F15B2201/505 , F15B2201/515
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 resulting from such failure to the 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，通过能够在早期阶段检测故障并将由此故障引起的损坏定位到故障蓄能器的电容式传感器装置感测到各种故障情况。
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公开(公告)号：WO2015110160A1
公开(公告)日：2015-07-30
申请号：PCT/EP2014/051339
申请日：2014-01-23
Applicant: ABB TECHNOLOGY AG
Inventor： MUHONEN, Jukka , MISSING, Kim , VIRTANEN, Esa , LAUNONEN, Markku , MERILÄINEN, Tapio
CPC classification number: H01F27/14 , F15B2201/3153 , F15B2201/505 , F16J3/046 , G01M3/027 , G01M3/225 , G01M3/227
Abstract: A subsea pressure compensator, comprising an inner bellows (222), and an outer bellows (224) encompassing the inner bellows (222), which inner bellows (222) and outer bellows (224) are arranged at least partly overlapping each other. The subsea pressure compensator comprises a test assembly for testing the tightness of the space (228) between the inner bellows (222) and the outer bellows (224).
Abstract translation: 一个海底压力补偿器，包括内部波纹管（222）和包围内部波纹管（222）的外部波纹管（224），该内部波纹管（222）和外部波纹管（224）至少部分地彼此重叠。 海底压力补偿器包括用于测试内部波纹管（222）和外部波纹管（224）之间的空间（228）的紧密度的测试组件。
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