公开(公告)号：US20190120257A1

公开(公告)日：2019-04-25

申请号：US16310489

申请日：2017-04-11

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Horst MANNEBACH ,  Peter KLOFT

IPC: F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/31 ,  F15B2201/515

Abstract: A hydropneumatic piston accumulator, with an accumulator housing (1), which comprises a cylindrical tube (3) defining a longitudinal axis (11), wherein the cylindrical tube (3) is closed at both ends by a housing cover (5, 7) at each end and wherein a piston (9) is longitudinally movable in the cylindrical tube (3) and, in the housing, separates a working chamber (13) for a compressible medium, such as a working gas, from a working chamber for an incompressible medium, such as hydraulic fluid, and with a displacement measuring device for determining the position of the piston (9) in the housing in a contact-free manner. The invention is characterised in that the displacement measuring device comprises a non-magnetic measuring tube (29), which extends along the longitudinal axis (11) from one housing cover (5) to the other housing cover (7) through a passage (31) formed in the piston (9) and is sealed against the interior of the housing (1), and in that in the tube (29) a position sensor (57) is movably guided and follows the piston movements in the measuring tube (29) using a magnetic force acting between the piston sensor (57) and the piston (9), and in that a transmitter/receiver (65) for the displacement measuring device is positioned on one of the housing covers (5, 7) and emits a measurement beam through the open end (25, 26) of the measuring tube (29) to the position sensor (57) and receives reflected radiation from same.

公开(公告)号：US09879700B1

公开(公告)日：2018-01-30

申请号：US14510416

申请日：2014-10-09

Applicant: Google Inc.

Inventor： Zachary John Jackowski ,  Stephen Berard ,  Alex Khripin ,  Alfred Anthony Rizzi

IPC: F15B1/04 ,  F15B21/00 ,  F15B1/033

CPC classification number: F15B1/04 ,  F15B1/033 ,  F15B21/001 ,  F15B2201/51 ,  F15B2201/515 ,  Y10S901/22

Abstract: A control system may receive sensor data indicative of respective fluid levels of two or more hydraulic accumulators configured to operate at respective target fluid levels within a hydraulic system. The control system may determine respective errors of the hydraulic accumulators based on the respective fluid levels and respective target fluid levels of the hydraulic accumulators. The respective errors may correspond to pressure errors, fluid volume errors, or other types of errors of the hydraulic accumulators. Responsive to determining the respective errors, the control system may determine that the error of a given hydraulic accumulator is greater than errors of the other hydraulic accumulators and provide instructions to control a hydraulic valve to supply fluid from a single pump of the hydraulic system to the given hydraulic accumulator.

公开(公告)号：US20160356290A1

公开(公告)日：2016-12-08

申请号：US15171692

申请日：2016-06-02

Applicant: Hydril USA Distribution LLC

Inventor： Thomas David Beales ,  Michael James Connor, JR.

IPC: F15B1/04 ,  F15B15/28 ,  F15B1/02 ,  E21B41/00 ,  G01F17/00

CPC classification number: F15B1/04 ,  E21B33/062 ,  E21B33/064 ,  E21B41/0007 ,  F15B1/022 ,  F15B1/24 ,  F15B15/2876 ,  F15B2201/31 ,  F15B2201/515 ,  G01F17/00

Abstract: A laser piston position sensor for determining the position of a piston within an accumulator, the laser piston position sensor configured to attach to an end of the accumulator, and the accumulator having an aperture in the end thereof exposing the piston within the accumulator to the laser piston position sensor. The laser piston position sensor including a sensor housing enclosing a cavity containing a low pressure gas, and defining an opening from the cavity toward the accumulator, a laser sensor positioned within the cavity for emitting a laser toward the piston of the accumulator via the opening in the sensor housing and the aperture in the accumulator, and a transparent lens positioned between the laser sensor and the accumulator to allow passage of the laser from the laser sensor to the piston, and to separate gases in the accumulator from gases in the cavity of the sensor housing.

Abstract translation: 一种用于确定活塞在蓄能器内的位置的激光活塞位置传感器，所述激光活塞位置传感器被配置为附接到蓄能器的端部，并且所述蓄能器在其末端具有孔，将所述蓄能器内的活塞暴露于所述激光器 活塞位置传感器。 所述激光活塞位置传感器包括传感器壳体，所述传感器壳体包围含有低压气体的空腔，并且限定从所述空腔朝向所述蓄能器的开口;位于所述空腔内的激光传感器，用于经由所述开口向所述蓄能器的活塞发射激光 传感器外壳和蓄能器中的孔，以及位于激光传感器和蓄电池之间的透明透镜，以允许激光从激光传感器通过活塞，并将蓄能器中的气体与气体中的气体分离 传感器外壳。

公开(公告)号：US20160123356A1

公开(公告)日：2016-05-05

申请号：US14895018

申请日：2014-04-12

Applicant: HYDAC ELECTRONIC GMBH

Inventor： Mathias Leo JIRGAL ,  Joerg STEFFENSKY ,  Horst MANNEBACH ,  Thomas HAHN-JOSE

IPC: F15B15/28 ,  F15B1/24

CPC classification number: F15B15/2884 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/515

Abstract: The invention relates to an ultrasonic displacement measurement system (1), which in particular can be used for hydraulic accumulators (3) having at least one movable separating element (5), which separates two media chambers (9, 11) from each other preferably in a media-tight manner within a housing (7), wherein the one media chamber (9) holds a compressible fluid or an incompressible fluid and the other media chamber (11) holds a compressible fluid, in particular in the form of a working gas, wherein the particular position of the movable separating element (5) within the housing (7) can be detected by means of at least one ultrasonic sensor (13), is characterized in that the at least one ultrasonic sensor (13) performs the position detection of the separating element (5) on the side of the other media chamber (11) having the compressible fluid. The invention further relates to a method for ultrasonic displacement measurement by means of such a system.

Abstract translation: 本发明涉及一种超声波位移测量系统（1），其特别地可用于具有至少一个可移动分离元件（5）的液压蓄能器（3），其将两个介质室（9,11）优选地彼此分离 在壳体（7）内以介质密封的方式，其中所述一个介质室（9）保持可压缩流体或不可压缩流体，并且所述另一介质室（11）保持可压缩流体，特别是以工作形式 气体，其中所述可移动分离元件（5）在所述壳体（7）内的特定位置可以通过至少一个超声波传感器（13）检测，其特征在于，所述至少一个超声波传感器（13）执行 在具有可压缩流体的另一介质室（11）侧的分离元件（5）的位置检测。 本发明还涉及通过这种系统进行超声位移测量的方法。

公开(公告)号：US20160027225A1

公开(公告)日：2016-01-28

申请号：US14522105

申请日：2014-10-23

Applicant: GOODRICH CORPORATION

Inventor： AMIR M. FAZELI ,  ADNAN CEPIC ,  SUSANNE M. REBER

IPC: G07C5/08 ,  B64D45/00

CPC classification number: G07C5/0808 ,  B64C25/60 ,  B64D45/00 ,  B64D2045/0085 ,  F15B1/24 ,  F15B19/005 ,  F15B20/005 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/625 ,  F15B2211/7054 ,  F15B2211/857

Abstract: A method includes detecting at least one position measurement of a separator piston of a pitch trim actuator. The method includes detecting at least one pressure measurement of a gas. The method includes detecting at least one temperature measurement of the gas. The method includes storing at least one position value based on the at least one position measurement of the separator piston, at least one pressure value based on the at least one pressure measurement of the gas and at least one temperature value based on the at least one temperature measurement of the gas. The method includes determining a volume of an oil within an oil chamber of the pitch trim actuator and a pressure of the gas within the gas chamber of the pitch trim actuator, based on the at least one position value, the at least one pressure value and the at least one temperature value.

Abstract translation: 一种方法包括检测间距调节致动器的分离器活塞的至少一个位置测量。 该方法包括检测气体的至少一个压力测量。 该方法包括检测气体的至少一个温度测量。 该方法包括基于分离器活塞的至少一个位置测量来存储至少一个位置值，基于气体的至少一个压力测量的至少一个压力值和至少一个温度值 气体的温度测量。 所述方法包括基于所述至少一个位置值，所述至少一个压力值和所述至少一个压力值来确定所述俯仰调节致动器的油室内的油的体积和所述俯仰调节致动器的气体室内的气体的压力，以及 所述至少一个温度值。

公开(公告)号：US20140360360A1

公开(公告)日：2014-12-11

申请号：US14370024

申请日：2012-12-27

Applicant: Robert Bosch GmbH

Inventor： Richard Bauer ,  Christoph Weisser ,  Ingo Bork ,  Stefan Weiss ,  Bernhard Zickgraf ,  Susanne Spindler

IPC: F15B19/00

CPC classification number: F15B19/005 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/515

Abstract: The invention relates to a piston accumulator (1) and a method for determining a position of a piston (5) that can be moved inside a housing (3) of the piston accumulator (1). One or more inductive sensors (15) are arranged on an exterior surface (21) of the housing (3) and configured to detect a movement of the piston (5) inside the housing (3) caused by electromagnetic induction. In this way, a determination of the current position of the piston (5), which is technically simple to realise and contact-free, can be implemented and used, for example, to monitor a charge state of the piston pressure accumulator (1).

Abstract translation: 本发明涉及一种活塞蓄能器（1）和一种用于确定能够在活塞蓄能器（1）的壳体（3）内移动的活塞（5）的位置的方法。 一个或多个感应传感器（15）布置在壳体（3）的外表面（21）上，并且被配置为检测由电磁感应引起的壳体（3）内的活塞（5）的运动。 以这种方式，可以实现并且使用例如监测活塞蓄压器（1）的充电状态的活塞（5）的当前位置的确定，其在技术上易于实现和无接触， 。

公开(公告)号：US08365651B2

公开(公告)日：2013-02-05

申请号：US10542781

申请日：2004-01-17

Applicant: Walter Dorr

Inventor： Walter Dorr

IPC: F01B31/12

CPC classification number: F15B1/08 ,  F15B1/24 ,  F15B15/2807 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3158 ,  F15B2201/515

Abstract: A piston-type accumulator has: a) an accumulator housing in the form of a cylinder tube (1) made of magnetizable material, which defines an axial direction of the housing; b) a piston (3), which can be axially displaced over a stroke path inside the cylinder tube (1) and which forms a moving separating element that, inside the accumulator housing, separates two working spaces (7 and 9) from one another; c) a magnet arrangement (29, 31, 35), placed on the piston (3) and generating a field on the wall of the cylinder tube (1), and; d) a magnetic field sensor device located on the exterior of the cylinder tube (1) and having at least one Hall sensor (51). The Hall sensor is mounted on the exterior of the cylinder tube (1) and responds to the field generated by the magnet arrangement (29, 31, 35) on the piston (3) to determine the position of the piston (3) along the stroke path.

Abstract translation: 活塞式蓄能器具有：a）以可磁化材料制成的缸筒（1）形式的蓄能器壳体，其限定所述壳体的轴向; b）活塞（3），其可以在气缸管（1）内的行程路径上轴向移位，并且形成移动的分离元件，其在蓄能器壳体内部将两个工作空间（7和9）彼此分开 ; c）放置在活塞（3）上并在气缸管（1）的壁上产生场的磁体布置（29,31,35）;以及 d）位于气缸管（1）的外部并具有至少一个霍尔传感器（51）的磁场传感器装置。 霍尔传感器安装在气缸管（1）的外部，并响应由活塞（3）上的磁体装置（29,31,35）产生的磁场，以确定活塞（3）沿着活塞 行程路径。

公开(公告)号：US20100307233A1

公开(公告)日：2010-12-09

申请号：US12792396

申请日：2010-06-02

Applicant: Richard O. Glasson ,  Kedar D. Kulkarni

Inventor： Richard O. Glasson ,  Kedar D. Kulkarni

IPC: G01M19/00

CPC classification number: F15B1/08 ,  F15B1/103 ,  F15B1/165 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3152 ,  F15B2201/515

Abstract: A linear position sensor is installed inside the pressure vessel of a hydraulic accumulator to provide positional information for the moveable element inside of the accumulator. The positional information provides accumulator charge condition data for use in hydraulic systems such as vehicular regenerative braking systems and generalized industrial accumulator systems. Charge condition data allows for optimized control and operation of the hydraulic system.

Abstract translation: 线性位置传感器安装在液压蓄能器的压力容器内部，以提供蓄能器内部的可移动元件的位置信息。 位置信息提供用于诸如车辆再生制动系统和广义工业蓄能器系统的液压系统中的蓄能器充电状态数据。 充电条件数据可以优化液压系统的控制和操作。

公开(公告)号：US07234490B2

公开(公告)日：2007-06-26

申请号：US10548469

申请日：2004-01-22

Applicant: Walter Dorr

Inventor： Walter Dorr

IPC: F16L55/04

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3158 ,  F15B2201/41 ,  F15B2201/4155 ,  F15B2201/515

Abstract: A hydraulic accumulator includes an accumulator housing (1) formed of a non-magnetizable material and defining an axial direction of the housing. A separating element (9) can be axially displaced in the accumulator housing (1) and separates two working chambers (5, 7) from each other in the accumulator housing (1). A field-generating magnetic configuration (29) is arranged on the separating element. A series of magnetic field sensors (35) are arranged on the outer side of the accumulator housing (1), extend along the path of the axial movement of the separating element (9) and react to the field of the magnetic configuration (29) on the separating element (9) to characterize its position along the series of magnetic field sensors (35).

Abstract translation: 液压蓄能器包括由不可磁化材料形成并限定壳体的轴向方向的蓄能器壳体（1）。 分离元件（9）可以在储存器壳体（1）中轴向位移，并且在蓄能器壳体（1）中分离两个工作室（5,7）。 在分离元件上布置有场产生磁性构造（29）。 一系列磁场传感器（35）布置在蓄能器壳体（1）的外侧上，沿着分离元件（9）的轴向移动的路径延伸并响应于磁性构造（29）的场， 在分离元件（9）上以表征其沿着一系列磁场传感器（35）的位置。

公开(公告)号：US5024250A

公开(公告)日：1991-06-18

申请号：US462407

申请日：1990-01-09

Applicant: Masao Nakamura

Inventor： Masao Nakamura

IPC: F15B1/08 ,  F15B1/24

CPC classification number: F15B1/08 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/41 ,  F15B2201/4155 ,  F15B2201/515 ,  Y10S91/04

Abstract: A piston type accumulator has a detection device that informs a user about the position of the piston incorporated therein. Abnormalities in the hydraulic system operations e.g., a gas leak from a gas chamber bounded by the piston or the sudden turning on of a fluid-actuated device in the system, can cause an excessive movement of the piston; likewise, clogging of lines or the sudden stoppage of a fluid-actuated device may cause a fluid pressure rise in the system and, consequently, a displacement of the piston to actuate the detection device. In this invention, the position of the piston is detected by use of a permanent magnet that actuates a reed relay or moves a magnetic inductive indicator installed on the outside of a accumulator shell to be readily visible thereat.

Abstract translation: 活塞式蓄能器具有检测装置，其向使用者通知其中结合的活塞的位置。 液压系统操作中的异常，例如来自由活塞限定的气体室的气体泄漏或系统中流体致动装置的突然转动，可能引起活塞的过度运动; 同样地，线路的堵塞或流体致动装置的突然停止可能导致系统中的流体压力升高，并且因此导致活塞的移动来致动检测装置。 在本发明中，通过使用驱动簧片继电器的永久磁铁或安装在蓄电池壳体外部的磁感应指示器来移动活塞的位置，以便在那里容易地看见活塞的位置。