公开(公告)号：US09874233B2

公开(公告)日：2018-01-23

申请号：US14665816

申请日：2015-03-23

Applicant: Eaton Corporation

Inventor： QingHui Yuan ,  Ankur Ganguli

IPC: F16D31/02 ,  F15B13/044 ,  B29C45/82 ,  F04B49/00 ,  F04B49/10 ,  F15B1/033 ,  F15B1/26 ,  F15B21/08

CPC classification number: F15B13/044 ,  B29C45/82 ,  F04B49/002 ,  F04B49/10 ,  F04B49/103 ,  F15B1/033 ,  F15B1/26 ,  F15B21/08 ,  F15B2201/50

Abstract: A hydraulic drive system for driving a load includes a drive shaft; first and second hydraulic pumps driven by the drive shaft, and a control system that operates the hydraulic drive system in a plurality of modes including: a) a first mode where the second hydraulic pump pumps hydraulic fluid from a supply line to an accumulator; b) a second mode where the second hydraulic pump pumps hydraulic fluid from the accumulator to the supply line; c) a third mode where the second hydraulic pump pumps hydraulic fluid from the supply line to a reservoir; and d) a fourth mode where the second hydraulic pump pumps hydraulic fluid from the reservoir to the supply line. At least the second hydraulic pump is a variable displacement bidirectional pump.

公开(公告)号：US09652902B2

公开(公告)日：2017-05-16

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 ,  B64C25/60 ,  F15B1/24 ,  F15B19/00 ,  F15B20/00

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.

公开(公告)号：US20170051763A1

公开(公告)日：2017-02-23

申请号：US14830208

申请日：2015-08-19

Applicant: Caterpillar Global Mining Equipment LLC

Inventor： Saeid Mirzaei ,  Suresh V. Venna ,  Anshu Srivastava

IPC: F15B1/027 ,  F15B11/08 ,  F15B1/04

CPC classification number: F15B1/027 ,  B60H1/00435 ,  B60H1/3222 ,  E02F9/2095 ,  E02F9/2217 ,  F15B1/00 ,  F15B1/024 ,  F15B1/04 ,  F15B11/08 ,  F15B21/14 ,  F15B2201/50 ,  F15B2211/212 ,  F15B2211/40515 ,  F15B2211/41572 ,  F15B2211/50563 ,  F15B2211/5151 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/85 ,  Y02P80/13

Abstract: A hydraulic circuit is pressurized by a hydraulic pump driven by a power source in a machine. The hydraulic circuit is configured to use pressurized fluid from an accumulator to drive a hydraulic accessory when the hydraulic pump is inactive and the power source is shut down for fuel savings during idle operations. A valve may be configured to selectively supply pressurized hydraulic fluid to the accessory when the pump is inactive.

Abstract translation: 液压回路由机器中由动力源驱动的液压泵加压。 液压回路构造成当液压泵不活动时使用来自蓄能器的加压流体来驱动液压附件，并且关闭电源以在空转操作期间节省燃料。 当泵不活动时，阀可构造成选择性地将供给加压的液压流体供应到附件。

公开(公告)号：US09279432B2

公开(公告)日：2016-03-08

申请号：US13261771

申请日：2012-04-07

Applicant: Matthias Leo Jirgal ,  Horst Mannebach ,  Martin Groben

Inventor： Matthias Leo Jirgal ,  Horst Mannebach ,  Martin Groben

IPC: F15B1/16

CPC classification number: F15B1/165 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/50

Abstract: A media separating device (1), in particular a hydraulic accumulator (3), has a movable separator (5) separating two media (7, 9) received in media chambers (11, 13) and differing from each other. A measuring apparatus (15, 115) can detect an overflow of at least one medium (7, 9) from a medium chamber (11, 13) via the separator (5) into the other medium chamber (11, 13) having the other medium (9, 7).

Abstract translation: 介质分离装置（1）特别是液压蓄能器（3）具有分离容纳在介质室（11,13）中并且彼此不同的两个介质（7,9）的可移动分离器（5）。 测量装置（15,115）可以检测至少一个介质（7,9）从介质室（11,13）经由分离器（5）到另一个介质室（11,13）的溢流到另一个介质室 中等（9,7）。

公开(公告)号：US20130263584A1

公开(公告)日：2013-10-10

申请号：US13442415

申请日：2012-04-09

Applicant: Paul G. Otanez ,  Zhen J. Zhang ,  Casie M. Bockenstette

Inventor： Paul G. Otanez ,  Zhen J. Zhang ,  Casie M. Bockenstette

IPC: B60K23/00 ,  F16D31/00 ,  F17D3/00

CPC classification number: F16H61/4096 ,  B60W2510/107 ,  F15B1/024 ,  F15B2201/50 ,  F15B2201/51 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6343 ,  F16H2061/0034 ,  Y10T137/0318

Abstract: A system and method for controlling an accumulator for use with a hydraulic circuit is provided. The system and method is configured to determine a set of accumulator temperature indicators and discharge and charge the accumulator as a function of the set of accumulator temperature indicators.

Abstract translation: 提供了一种用于控制用于液压回路的蓄能器的系统和方法。 该系统和方法被配置为根据蓄电池温度指示器的组合来确定一组蓄电池温度指示器并对蓄电池进行充电和充电。

公开(公告)号：WO2015150478A2

公开(公告)日：2015-10-08

申请号：PCT/EP2015/057228

申请日：2015-04-01

Applicant: GE OIL & GAS UK LIMITED

Inventor： SANKEY, Chad ,  JEFFERIS, Julian James ,  DAVEY, Peter John ,  GOUGH, Robert John

CPC classification number: F15B1/08 ,  E21B33/0355 ,  F15B2201/31 ,  F15B2201/3152 ,  F15B2201/50 ,  F15B2201/505 ,  F15B2201/51 ,  F15B2201/515 ,  Y02E60/15

Abstract: A hydraulic accumulator assembly (1) in which a hydraulic accumulator (2) is associated with at least one sensing device (4, 7, 11 or 12) configured to provide an indication of the displacement of an internal divider (3 or 10) within the accumulator to provide an indication of the volume of gas within the hydraulic accumulator.

Abstract translation: 液压蓄能器组件（1），其中液压蓄能器（2）与至少一个感测装置（4,7,11或12）相关联，所述至少一个感测装置（4,7,11或12）被配置成提供内部分隔器（3或10）的位移指示 所述蓄能器提供所述液压蓄能器内的气体的体积的指示。

公开(公告)号：WO2010127660A3

公开(公告)日：2011-09-15

申请号：PCT/DE2010000474

申请日：2010-04-26

Applicant: SCHAEFFLER TECHNOLOGIES GMBH ,  STAUDINGER MARTIN ,  MUELLER ERIC ,  GLAS RONALD

Inventor： STAUDINGER MARTIN ,  MUELLER ERIC ,  GLAS RONALD

IPC: F15B1/04

CPC classification number: F15B1/04 ,  F15B2201/21 ,  F15B2201/305 ,  F15B2201/50

Abstract: The present invention relates to a hydraulic accumulator (1) for a hydraulic system containing a pressurized fluid, comprising at least one pressure chamber (13) which is formed between two opposing displaceable delimiting surfaces, each surface comprising a spring cover (4, 5) and a disk spring (2, 3), and at least one fixed delimiting surface, wherein both the disk spring (2, 3) and the spring cover (4, 5) are each associated with a sealing ring (18, 20) and a tilt ring (17, 19), wherein an electronic controller (9, 10) is disposed inside the accumulator (1).

Abstract translation: 本发明涉及一种液压蓄压器（1），用于容纳液压系统具有至少一个压力室（13），这是两个相对的边界表面之间移动的加压流体，每个包括一个弹簧盖（4,5）和一个盘形弹簧（2,3） 包括，以及被至少形成了固定的边界表面，其中，每个所述板的弹簧（2,3）和所述弹簧罩（4,5）每一个都具有密封环（18，20）和倾斜环（17，19）内的相关，其特征在于 的电子控制（9，10）设置蓄压器（1）。

公开(公告)号：EP2627906B1

公开(公告)日：2018-12-05

申请号：EP11776047.0

申请日：2011-10-14

Applicant: Eaton Corporation

Inventor： YUAN, Qinghui ,  GANGULI, Ankur

IPC: F04B49/00 ,  F04B49/10

CPC classification number: F15B13/044 ,  B29C45/82 ,  F04B49/002 ,  F04B49/10 ,  F04B49/103 ,  F15B1/033 ,  F15B1/26 ,  F15B21/08 ,  F15B2201/50

Abstract: A hydraulic drive system for driving a load includes a drive shaft; first and second hydraulic pumps driven by the drive shaft, and a control system that operates the hydraulic drive system in a plurality of modes including: a) a first mode where the second hydraulic pump pumps hydraulic fluid from a supply line to an accumulator; b) a second mode where the second hydraulic pump pumps hydraulic fluid from the accumulator to the supply line; c) a third mode where the second hydraulic pump pumps hydraulic fluid from the supply line to a reservoir; and d) a fourth mode where the second hydraulic pump pumps hydraulic fluid from the reservoir to the supply line. At least the second hydraulic pump is a variable displacement bidirectional pump.

公开(公告)号：EP3149385A4

公开(公告)日：2018-01-17

申请号：EP15800263

申请日：2015-05-27

Applicant: AMTROL LICENSING INC

Inventor： VAN HAAREN CHRISTOPHER A ,  CERPOVICZ KENNETH ,  KAMPF CHRISTOPHER

IPC: F24D3/10 ,  F16L55/04 ,  F16L55/053 ,  G01M3/00 ,  G01M3/04

CPC classification number: F24D3/1008 ,  F15B1/10 ,  F15B2201/50 ,  F16J3/02 ,  F16L55/053 ,  F16L2201/30 ,  F24D3/1016 ,  G01M3/00 ,  G01M3/042

Abstract: Disclosed is an expansion tank having an internal cavity separated by a flexible diaphragm to form an upper pressurized gas portion and a lower pressurized fluid portion, and an indicator positioned at an upper part of the expansion tank in communication with the contents of the upper pressurized gas portion. The indicator is configured so as to display a first color if the operating conditions are normal in the pressurized gas portion, and a second color if the amount of moisture detected in the pressurized gas portion greater than or equal to a predetermined amount. Further disclosed is a method for detecting whether there is an excessive amount of moisture in a pressurized gas portion of an expansion tank by allowing pressurized gas from the pressurized gas portion to come into contact with the indicator, and viewing the color displayed by the indicator. As such, the tank can be simply visually inspected to determine whether there is a potential failure in the tank.

公开(公告)号：EP2484919A3

公开(公告)日：2013-03-13

申请号：EP12153400.2

申请日：2012-01-31

Applicant: Hamilton Sundstrand Corporation

Inventor： Snider, Terrance R. ,  Doughty, Kurt J.

IPC: F15B1/04

CPC classification number: F15B1/04 ,  F15B2201/205 ,  F15B2201/305 ,  F15B2201/415 ,  F15B2201/50

Abstract: An accumulator (10) for a fluid system comprises a pressure vessel (12) with a baffle (16) oriented at a skew angle (θ). The baffle (16) divides the vessel (12) into first and second volumes (V1, V2). A first port (28) is provided to introduce a pressurizing fluid (14) into the first volume (V1), and a second port (32) is provided to circulate a working fluid (15) within the second volume (V2). A purge aperture (20) is provided to purge the pressurizing fluid (14) from the second volume (V2) across the baffle (16) into the first volume (V1), and a flow aperture (22) is provided to transfer the working fluid (15) through the baffle (16) between the first and second volumes (V1, V2).