公开(公告)号：US20140366717A1

公开(公告)日：2014-12-18

申请号：US14478035

申请日：2014-09-05

Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.

Inventor： Koichiro TSUKANE

IPC: F15B15/14

CPC classification number: F15B15/14 ,  E02F9/2217 ,  E02F9/2292 ,  F04F13/00 ,  F15B11/032 ,  F15B15/1466 ,  F15B2201/51 ,  F15B2211/212 ,  F15B2211/214 ,  F15B2211/7055 ,  F15B2211/7107 ,  F15B2211/761 ,  F15B2211/88

Abstract: A fluid pressure increasing/decreasing machine can continuously supply an output pressure to a destination of supply by converting an input pressure from a source of supply. A control device selects at least one input pressure chamber and at least one output pressure chamber from among at least three pressure chambers in a fluid pressure cylinder or a plurality of fluid pressure cylinders operating inter-connectedly, the input pressure chamber being supplied with the input pressure, the output pressure chamber creating the output pressure including a pressure higher than the input pressure and a pressure lower than the input pressure. A flow control valve causes the selected input pressure chamber to communicate with the source of supply, and the selected output pressure chamber to communicate with the destination of supply. At least one of the pressure chambers is capable of being either of the input pressure chamber and the output pressure chamber.

Abstract translation: 通过转换来自供应源的输入压力，流体压力增加/减少机器可以连续地向供给目的地提供输出压力。 控制装置从流体压力缸中的至少三个压力室或相互连接的多个流体压力缸中选择至少一个输入压力室和至少一个输出压力室，输入压力室被供给输入 输出压力室产生包括高于输入压力的压力和低于输入压力的压力的输出压力。 流量控制阀使所选择的输入压力室与供应源连通，并且所选择的输出压力室与供应的目的地通信。 至少一个压力室能够是输入压力室和输出压力室中的任一个。

公开(公告)号：US20140318115A1

公开(公告)日：2014-10-30

申请号：US13261904

申请日：2012-12-03

Applicant: HYDAC FLUIDTECHNIK GMBH

Inventor： Frank Schulz ,  Peter Bruck

IPC: F15B21/14 ,  E02F9/22 ,  F15B1/24

CPC classification number: F15B21/14 ,  E02F9/2217 ,  F15B1/024 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/413 ,  F15B2201/51 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/7052 ,  F15B2211/88 ,  Y02E60/15

Abstract: The invention relates to a system for improving the energy efficiency in hydraulic systems, comprising an actuator (49) which, in an operating state, operates as a consumer of hydraulic energy and, in a different operating state, as a generator of hydraulic energy, and a hydraulic accumulator (1) which, when in an operating state of the actuator (49), can be charged by the same for storing energy and, when in a different operating state, can be discharged for delivering energy to the actuator (49). The invention is characterized in that at least one hydraulic accumulator in the form of an adjustable hydropneumatic piston accumulator (1) is provided, in which a are formed a plurality of pressure chambers (19, 21, 23, 25) which adjoin effective surfaces (11, 13, 15, 17) of different sizes on the fluid side of the accumulator piston (5), and an adjusting arrangement (51) is provided which connects a selected pressure chamber (19, 21, 23, 25) or a plurality of selected pressure chambers (19, 21, 23, 25) of the piston accumulator (1) to the actuator (49) as a function of the pressure level that prevails respectively on the gas side of the piston accumulator (1) and on the actuator (49).

Abstract translation: 本发明涉及一种用于提高液压系统能量效率的系统，该系统包括致动器（49），该致动器在操作状态下作为液压能量消耗器运行，并且在不同的运行状态下作为液压能量发生器， 以及液压蓄能器（1），当处于致动器（49）的操作状态时，液压蓄能器（1）能够通过其被充电以存储能量，并且当处于不同的操作状态时，可以将其释放以向致动器（49 ）。 本发明的特征在于，提供至少一个液压蓄能器（1）的可调式液压活塞蓄能器（1），其中a形成有多个与有效表面相邻的压力室（19,21,23,25） 在蓄能器活塞（5）的流体侧上具有不同尺寸的阀（11,13,15,17），并且提供一个调节装置（51），其连接选定的压力室（19,21,23,25）或多个 （1）的活塞蓄能器（1）的选定的压力室（19,21,23,25）与致动器（49）之间的压力水平的函数分别对应于活塞蓄能器（1）的气体侧上的压力水平 致动器（49）。

公开(公告)号：US20140130924A1

公开(公告)日：2014-05-15

申请号：US13676900

申请日：2012-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Leonid Basin ,  Edward W. Mellet ,  Carlos E. Marin

IPC: F16L55/04

CPC classification number: B60T8/00 ,  F15B1/04 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/4053 ,  F15B2201/51 ,  Y02E60/15

Abstract: A composite accumulator includes a base defining a first cavity and having a closed end, an open end, and a fluid port in communication with the first cavity for communicating a hydraulic fluid in or out of the first cavity, a cover disposed over the open end of the base, the cover defining a second cavity, an insert disposed within the second cavity, a piston disposed within the first cavity and the second cavity, the piston sealed to the insert and translatable along an axis, and a biasing member disposed axially between the piston and the insert, the biasing member configured to bias the piston towards the base. Both the base and the cover are a plastic and the insert is a metal.

Abstract translation: 复合蓄能器包括限定第一腔并具有闭合端，开口端和与第一空腔连通的流体端口的底座，用于将液压流体连通到第一空腔内或从第一空腔中流出的基座，设置在开口端 所述盖限定第二空腔，设置在所述第二空腔内的插入件，设置在所述第一空腔和所述第二空腔内的活塞，所述活塞密封到所述插入件并且可沿着轴线平移;以及偏压构件， 所述活塞和所述插入件，所述偏置构件构造成朝向所述基座偏置所述活塞。 基座和盖子均为塑料，插入件为金属。

公开(公告)号：US20080292483A1

公开(公告)日：2008-11-27

申请号：US12097397

申请日：2006-12-08

Applicant: Cornelius Johannes De Koning

Inventor： Cornelius Johannes De Koning

IPC: F04B11/00 ,  F16L55/04 ,  F16L55/053

CPC classification number: F15B1/021 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/413 ,  F15B2201/51 ,  F16L55/053

Abstract: The invention relates to a device for damping discharge pulsations in a medium being pumped through a system of pipes in a pulsating manner by a displacement pump that operates with a specific discharge characteristic, which device at least comprises a housing with an at least partially gas-filled damping chamber having a certain volume present therein, which housing can be connected to the system of pipes, in such a manner that an interface layer is present between the medium and the gas in the damping chamber during operation, which damping chamber has a desired gas pressure characteristic that partially depends on the discharge characteristic of the displacement pump, wherein the gas volume that is present in the damping chamber varies in time between a minimum compression volume and a maximum expansion volume under the influence of said discharge pulsations during operation, as well as adjusting means that supply gas to or discharge gas from the damping chamber The present invention provides a simpler and less complicated construction both for pulsation dampers provided with a separating element and for air boxes not provided with a separating element. In order to achieve an optimised damping of the discharge pulsations, the adjusting means are according to the invention arranged for determining the desired gas pressure characteristic in the damping chamber on the basis of the discharge characteristic of the displacement pump and determining the current gas pressure characteristic in the damping chamber, and comparing the current gas pressure characteristic as determined with the desired gas pressure characteristic of the damping chamber and determining the current position of the interface layer in the damping chamber on the basis of said comparison.

Abstract translation: 本发明涉及一种用于阻止介质中的排出脉动的装置，其通过位移泵以脉动的方式泵送，该位移泵以特定的排放特性运行，该装置至少包括具有至少部分气体 - 其中存在一定体积的填充阻尼室，该壳体可以连接到管道系统，使得界面层在操作期间在介质和阻尼室中的气体之间存在，该阻尼室具有期望的 气体压力特性部分地取决于排量泵的排放特性，其中存在于阻尼室中的气体体积在操作期间在所述排出脉动的影响下在最小压缩体积和最大膨胀体积之间随时间变化，如 以及用于向阻尼室供应气体或从其中排出气体的调节装置本发明 n为具有分离元件的脉动阻尼器和未设置有分离元件的空气箱提供更简单且更不复杂的结构。 为了实现放电脉动的优化的阻尼，根据本发明的调节装置被设置成基于排量泵的排放特性来确定阻尼室中的期望的气体压力特性，并且确定当前的气体压力特性 在所述阻尼室中，并且根据所述阻尼室的期望气体压力特性来比较当前气体压力特性，并且基于所述比较来确定所述阻尼室中的界面层的当前位置。

公开(公告)号：US06619325B2

公开(公告)日：2003-09-16

申请号：US10000022

申请日：2001-12-04

Applicant: Charles L. Gray, Jr.

Inventor： Charles L. Gray, Jr.

IPC: F16L5504

CPC classification number: F15B1/22 ,  B60K6/12 ,  F15B1/18 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/43 ,  F15B2201/51 ,  F15B2201/615 ,  F16K31/1221 ,  F16K31/1225 ,  Y02T10/6208 ,  Y10T137/7782

Abstract: A hydraulic accumulator is equipped with a novel shut-off valve. The shut off-valve includes a valve body having a cylindrical hollow with a valve seat surrounding one end. The main piston including a piston head has a central opening and is slidably mounted within the cylindrical hollow of the valve body. A poppet valve has a valve head which mates with the valve seat and a valve stem which extends through the central opening of the piston to guide axial movement of the poppet valve relative to the piston. A spring is mounted between the valve head and the main piston head for urging the valve head away from the piston head. A control valve moves the piston relative to the valve body between open and closed positions responsive to signals from a computer which signals valve closing upon determination that flow rate through the valve exceeds a maximum period. The spring between the poppet valve head and the piston head exerts a force approximately equal to that of a pressure drop across the poppet valve at a predetermined maximum flow rate.

公开(公告)号：US20030136123A1

公开(公告)日：2003-07-24

申请号：US10053661

申请日：2002-01-24

Inventor： Carl Seguin

IPC: F16D031/02

CPC classification number: F15B1/24 ,  F15B1/10 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/3151 ,  F15B2201/3153 ,  F15B2201/3158 ,  F15B2201/32 ,  F15B2201/413 ,  F15B2201/51

Abstract: A hydraulic fluid reservoir comprises a body defining a variable volume chamber having one end portion movable with the level of fluid in the chamber. A biasing member acting on a traction rod extending from the movable end portion restrains movement thereof under fluid pressure. The fluid pressure in the variable volume chamber advantageously counterbalances the force of reaction in the biasing member.

Abstract translation: 液压流体储存器包括限定可变容积室的主体，该容积室具有可与腔室中的液体水平面移动的一个端部部分。 作用在从可动端部延伸的牵引杆上的偏压构件在流体压力下限制其运动。 可变容积室中的流体压力有利地抵消了偏置构件中的反作用力。

公开(公告)号：US20030102041A1

公开(公告)日：2003-06-05

申请号：US10000022

申请日：2001-12-04

Inventor： Charles L. Gray JR.

IPC: F16L055/04

CPC classification number: F15B1/22 ,  B60K6/12 ,  F15B1/18 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/43 ,  F15B2201/51 ,  F15B2201/615 ,  F16K31/1221 ,  F16K31/1225 ,  Y02T10/6208 ,  Y10T137/7782

Abstract: A hydraulic accumulator is equipped with a novel shut-off valve. The shut off-valve includes a valve body having a cylindrical hollow with a valve seat surrounding one end. The main piston including a piston head has a central opening and is slidably mounted within the cylindrical hollow of the valve body. A poppet valve has a valve head which mates with the valve seat and a valve stem which extends through the central opening of the piston to guide axial movement of the poppet valve relative to the piston. A spring is mounted between the valve head and the main piston head for urging the valve head away from the piston head. A control valve moves the piston relative to the valve body between open and closed positions responsive to signals from a computer which signals valve closing upon determination that flow rate through the valve exceeds a maximum period. The spring between the poppet valve head and the piston head exerts a force approximately equal to that of a pressure drop across the poppet valve at a predetermined maximum flow rate.

Abstract translation: 液压蓄能器装有一个新的截止阀。 截止阀包括具有圆柱形中空的阀体，其具有围绕一端的阀座。 包括活塞头的主活塞具有中心开口并且可滑动地安装在阀体的圆柱形中空部内。 提升阀具有与阀座配合的阀头和延伸穿过活塞的中心开口的阀杆，以引导提升阀相对于活塞的轴向运动。 在阀头和主活塞头之间安装有弹簧，用于将阀头推离活塞头。 控制阀根据来自计算机的信号，相对于阀体在打开和关闭位置之间移动活塞，该计算机在确定通过阀的流量超过最大周期时信号阀闭合。 提升阀头和活塞头之间的弹簧以预定的最大流量施加大致等于提升阀上的压降的力。

公开(公告)号：US20020162381A1

公开(公告)日：2002-11-07

申请号：US10118429

申请日：2002-04-09

Inventor： Kenichi Suzuki ,  Tetsuya Sato ,  Tadao Saito ,  Takashi Kurokawa ,  Yasunori Sakata

IPC: G01F025/00

CPC classification number: B60T17/06 ,  B60T13/14 ,  B60T17/18 ,  F15B1/08 ,  F15B1/103 ,  F15B19/005 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/413 ,  F15B2201/51

Abstract: A malfunction detection device of a bellows type accumulator for pressurized fluid includes malfunction judgment unit for judging a malfunction of the bellows type accumulator on the basis of a detection output of the pressure sensor. The malfunction judgment unit judges that the malfunction of the seal member generates when the difference between a peak pressure value appeared before a predetermined time is past after the starting of the pressure increase from a value below a predetermined value in the inlet and outlet port and a stable fluid pressure appeared after the appearance of the peak pressure value is not within a predetermined range and/or when the peak pressure value does not appear before the progress of the predetermined time.

Abstract translation: 用于加压流体的波纹管式蓄能器的故障检测装置包括故障判断单元，用于基于压力传感器的检测输出来判断波纹管式蓄电池的故障。 当压力增加开始之前出现的预定时间之前出现的峰值压力值与入口和出口之间的预定值以下的值之间出现的峰值压力值之间的差异为1时，故障判断单元判断密封构件的故障， 在峰值压力值的出现不在预定范围内和/或当在预定时间的进行之前没有出现峰值压力值时，出现稳定的流体压力。

公开(公告)号：US06298767B1

公开(公告)日：2001-10-09

申请号：US09505036

申请日：2000-02-16

Applicant: Don B. Porter

Inventor： Don B. Porter

IPC: F15B2104

CPC classification number: E21B33/064 ,  E21B33/0355 ,  E21B34/16 ,  F15B1/024 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3151 ,  F15B2201/411 ,  F15B2201/4155 ,  F15B2201/51 ,  F15B2201/515

Abstract: A system for remotely controlling an undersea device. The system employs a gas-pressurized liquid reservoir that can be recharged from at least one replaceable gas bottle. A pressure-regulating valve is employed to control the pressure of the liquid leaving the reservoir. A number of one-shot units, each in the form of a squib-actuated valve coupled with a piston accumulator, are employed to create a hydraulic pilot for a hydraulic direction control valve. The control valve functions to direct pressurized liquid from the reservoir to a hydraulic actuator or other type of hydraulic device.

Abstract translation: 用于远程控制海底设备的系统。 该系统采用可从至少一个可更换气瓶再充电的气体加压液体储存器。 使用压力调节阀来控制离开储存器的液体的压力。 采用多个一体式单元，每个单元均采用与活塞式蓄能器结合的点火致动阀，形成用于液压方向控制阀的液压先导。 控制阀用于将加压液体从储存器引导到液压致动器或其它类型的液压装置。

公开(公告)号：US4784182A

公开(公告)日：1988-11-15

申请号：US104507

申请日：1987-10-05

Applicant: Nobuyuki Sugimura

Inventor： Nobuyuki Sugimura

IPC: F15B1/08 ,  F16L55/02

CPC classification number: F15B1/08 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/4155 ,  F15B2201/43 ,  F15B2201/51 ,  F15B2201/515

Abstract: A bladder is disposed coaxially within a cylindrical container main body, a holder projecting into the bladder is provided on a top wall plate of the container main body, a sensor opposed to a bottom portion of the bladder and positioned within a moving locus region of the bottom portion or a deformable portion of the bladder is disposed at the bottom portion of the holder, and thereby, when the bladder deforms in response to variation of a liquid pressure the bottom portion of the bladder or the deformable portion of the bladder would actuate the sensor.

Abstract translation: 气囊同轴地设置在圆筒形容器主体内，突出到气囊中的保持器设置在容器主体的顶壁板上，与囊的底部相对的传感器，位于所述容器主体的移动轨迹区域内 膀胱的底部或可变形部分设置在保持器的底部，并且因此当膀胱响应于液体压力的变化而变形时，膀胱的底部部分或囊的可变形部分将致动 传感器。