公开(公告)号：US12018704B2

公开(公告)日：2024-06-25

申请号：US16982250

申请日：2019-03-27

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroshi Mizukami ,  Naohito Nakano ,  Mieko Yanagida

IPC: F15B1/04 ,  B21D22/20 ,  B21D51/24 ,  B23K26/21 ,  F15B1/10 ,  B21D35/00 ,  B21D51/16

CPC classification number: F15B1/04 ,  B21D22/20 ,  B21D51/24 ,  B23K26/21 ,  F15B1/103 ,  F15B1/106 ,  B21D35/006 ,  B21D51/16 ,  F15B2201/3153 ,  F15B2201/405 ,  F15B2201/4056 ,  F15B2201/605

Abstract: A shell member 10 constituting an accumulator 100 including a cover member 30, a shell member 10 having a cylindrical portion 11, an opening portion 13 formed at one end of the cylindrical portion 11 and welded to the cover member 30, and a closed portion 12 formed at another end of the cylindrical portion 11, and an accumulation part 70 accommodated in the shell member 10. The cylindrical portion 11 includes an upper end portion 11a, and a protruding portion 11c having the opening portion 13. The protruding portion 11c is thicker than the upper end portion 11a.

公开(公告)号：US20240200546A1

公开(公告)日：2024-06-20

申请号：US18593562

申请日：2024-03-01

Applicant: Baxter International Inc. ,  Baxter Healthcare SA

Inventor： Charles Wayne Boylan

IPC: F04B43/06 ,  A61M1/26 ,  A61M1/28 ,  A61M1/34 ,  A61M39/22 ,  F04B7/02 ,  F04B9/12 ,  F04B9/123 ,  F04B9/127 ,  F04B23/02 ,  F04B23/08 ,  F04B39/10 ,  F04B41/02 ,  F04B43/073 ,  F04B53/06 ,  F04B53/10 ,  F15B1/04

CPC classification number: F04B43/06 ,  A61M1/267 ,  A61M1/28 ,  A61M1/3413 ,  A61M39/22 ,  F04B23/02 ,  F04B23/08 ,  F04B53/06 ,  F15B1/04 ,  A61M2205/07 ,  F04B7/0275 ,  F04B9/12 ,  F04B9/123 ,  F04B9/1276 ,  F04B39/10 ,  F04B41/02 ,  F04B43/073 ,  F04B53/10 ,  F15B2201/3152 ,  F15B2201/3156 ,  F15B2201/40 ,  F15B2201/405

Abstract: A medical fluid delivery machine including: a medical fluid pump including a pneumatically actuated pump chamber and first and second pneumatically actuated medical fluid valve chambers located respectively upstream and downstream of the pneumatically actuated pump chamber; a vacuum pump for creating negative pressure; and an accumulator storing the negative pressure for operation with at least one of the pneumatically actuated pump chamber, the first pneumatically actuated medical fluid valve chamber or the second pneumatically actuated medical fluid valve chamber, the accumulator holding an elastic bladder that inflates under negative pressure from the vacuum pump applied to an outside of the elastic bladder, creating additional negative pressure that increases the amount of negative pressure that the accumulator can provide.

公开(公告)号：US20240159256A1

公开(公告)日：2024-05-16

申请号：US18284255

申请日：2022-03-25

Applicant: HUSCO International, Inc.

Inventor： Tom Peterson ,  Andrew Kundert ,  Casey Buschkopf

IPC: F15B21/04 ,  E02F9/22

CPC classification number: F15B21/04 ,  E02F9/2267 ,  F15B2201/405 ,  F15B2211/322 ,  F15B2211/41536 ,  F15B2211/45 ,  F15B2211/50554 ,  F15B2211/5154 ,  F15B2211/555 ,  F15B2211/7121

Abstract: A return manifold includes a housing having a first workport, a second workport, a third workport, and a fourth workport, and defining a first chamber and a second chamber. The return manifold includes a back-pressure disk arranged between the first workport and the first chamber, a bypass disk arranged between the first chamber and the second chamber, a back-pressure spring biased between the back-pressure disk and the bypass disk, and a bypass spring biased against the bypass disk. The back-pressure disk and the bypass disk are hydro-mechanically coupled so that movement of the bypass disk alters a force on the back-pressure disk and movement of the back-pressure disk alters a force on the bypass disk.

公开(公告)号：US20160369822A1

公开(公告)日：2016-12-22

申请号：US15028715

申请日：2014-09-28

Applicant: Qixing Chen ,  Qiyu Luo

Inventor： Qixing Chen ,  Qiyu Luo

IPC: F15B1/24 ,  F15B13/044 ,  F15B11/08

CPC classification number: F15B1/24 ,  F15B11/08 ,  F15B13/044 ,  F15B20/005 ,  F15B2201/312 ,  F15B2201/405 ,  F15B2201/411 ,  F15B2201/50 ,  F15B2211/205 ,  F15B2211/275 ,  F15B2211/625 ,  F15B2211/7051

Abstract: A liquid seal energy-accumulator and hydraulic system thereof based on liquid-collector and sandwich piston is provided. The liquid seal energy-accumulator includes a piston cylinder (HSG) and a high pressure gas-tank (QTG). When a piston (HS) moves to a top of the piston cylinder, the leaked pressure liquid accumulated on the top of the piston flows into the gas-tank through a gas-liquid channel (TD), so as to timely clean up the pressure liquid accumulated on the top of the piston. The pressure liquid collected at the bottom of the gas-tank is increased for upwardly moving a buoy (FT), when the buoy presses a collected-liquid sensor (JYG), a signal is sent for opening an electronically-controlled-valve (DKF), the leaked pressure liquid flows from the liquid leakage pipe (LYG) back to the liquid-container (SYT).

Abstract translation: 提供了一种基于液体收集器和夹层活塞的液体密封蓄能器及其液压系统。 液体密封蓄能器包括活塞气缸（HSG）和高压气罐（QTG）。 当活塞（HS）移动到活塞气缸的顶部时，积聚在活塞顶部的泄漏压力液体通过气液通道（TD）流入气罐，以便及时清除压力 液体积聚在活塞的顶部。 当浮筒按压收集液体传感器（JYG）时，在气罐底部收集的压力液体增加以向上移动浮标（FT），发送信号以打开电子控制阀（DKF ），泄漏的压力液体从液体泄漏管（LYG）流回液体容器（SYT）。

公开(公告)号：US20160333896A1

公开(公告)日：2016-11-17

申请号：US15111203

申请日：2014-12-19

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Herbert BALTES ,  Peter KLOFT

IPC: F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/31 ,  F15B2201/405 ,  F15B2201/605

Abstract: The invention relates to an accumulator device, in particular in the form of a piston accumulator, having a dividing piston (22) which inside an accumulator housing (2) separates two media chambers (26, 28) from each other, and in particular separates a chamber (28) containing a working gas, such as nitrogen, from a chamber (26) containing a working fluid, such as hydraulic oil. The invention is characterized in that the dividing piston (22) is longitudinally movably guided in a guide device (24) and that the guide device (24) is arranged inside the accumulator housing (2) and extends at least partially along the longitudinal axis (10) thereof.

Abstract translation: 本发明涉及一种蓄能器装置，特别是活塞式蓄能器的形式，其具有分隔活塞（22），所述分隔活塞在储存器壳体（2）的内部彼此分离两个介质室（26,28），并且特别地分离 从包含工作流体（例如液压油）的室（26）中容纳诸如氮的工作气体的室（28）。 本发明的特征在于，分离活塞（22）在引导装置（24）中纵向移动地被引导，并且引导装置（24）布置在蓄能器壳体（2）的内部并且至少部分地沿着纵向轴线 10）。

公开(公告)号：US20160273192A1

公开(公告)日：2016-09-22

申请号：US15032005

申请日：2014-11-04

Applicant: CATERPILLAR SARL

Inventor： Shigeo Kajita ,  Kouji Kishida ,  Naoki Sawada ,  Nobuaki Matoba

IPC: E02F9/22 ,  E02F3/32 ,  F15B11/08 ,  F15B13/04 ,  F15B1/04 ,  F15B1/02

CPC classification number: E02F9/2217 ,  E02F3/32 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/024 ,  F15B1/04 ,  F15B11/024 ,  F15B11/08 ,  F15B13/0401 ,  F15B21/14 ,  F15B2201/405 ,  F15B2201/411 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/3058 ,  F15B2211/50 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/7058 ,  F15B2211/7128 ,  F15B2211/7135 ,  F15B2211/761 ,  F15B2211/88

Abstract: Provided is a hydraulic circuit capable of efficiently recovering one and the other hydraulic energies for utilization by separating and recovering the same, one hydraulic energy being extruded from a hydraulic cylinder and the other hydraulic energy being extruded in starting and stopping rotation of a hydraulic motor, so as to allow an energy density of an accumulator to increase. The hydraulic circuit has: a first accumulator that accumulates pressure of hydraulic oil extruded from a boom cylinder; and a second accumulator that accumulates one pressure of the hydraulic oil relieved when the rotation of a swing motor is started and another pressure of the hydraulic oil extruded from a motor driving circuit with inertial rotation of the swing motor when rotation of the swing motor is stopped. A solenoid switch valve in passages that connect the first second accumulators closes the passages when pressure is accumulated in the second accumulator opens when the pressure in the second accumulator is discharged.

Abstract translation: 本发明提供一种液压回路，其能够通过分离回收利用的液压能力而有效地回收利用的一个液压能量，一个液压能量从液压缸中挤出，另一个液压能量在液压马达的起动和停止旋转中被挤出， 以便允许蓄能器的能量密度增加。 液压回路具有：第一蓄能器，累积从动臂缸挤出的液压油压力; 以及第二蓄能器，其累积当回转马达的旋转开始时释放的液压油的一个压力，并且当所述回转马达的旋转停止时从所述回转马达的惯性旋转的马达驱动回路挤出的所述液压油的另一压力 。 当第二蓄能器中的压力被释放时，连接第一第二蓄能器的通道中的电磁开关阀封闭通道，当压力累积在第二蓄能器中时，开路。

公开(公告)号：US20160230781A1

公开(公告)日：2016-08-11

申请号：US15012837

申请日：2016-02-01

Applicant: Vanderbilt University

Inventor： Eric J. Barth ,  John M. Tucker

IPC: F15B1/16

CPC classification number: F15B1/165 ,  B60T1/10 ,  B60T7/042 ,  B60T8/42 ,  F15B1/04 ,  F15B2201/20 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/405 ,  F16D61/00 ,  Y02E60/15

Abstract: The present invention is a distributed piston elastomeric accumulator which stores energy when its elastomeric member stretches from its original length in response to the flow of a pressurized fluid. The stored energy is returned when the fluid flow is reversed and the accumulator discharges the fluid as its elastomeric member returns to its original length and moves the piston to its initial position. At least one part of the novelty of the invention is that the accumulator is not subject to radial strain gradients and the accumulator allows for precise pressure and linear position measurements. Accordingly, the invention allows for optimization of the energy strain storage capacity of a given elastomer.

公开(公告)号：US09038668B2

公开(公告)日：2015-05-26

申请号：US13027850

申请日：2011-02-15

Applicant: Carlos E. Marin ,  Leonid Basin

Inventor： Carlos E. Marin ,  Leonid Basin

IPC: F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/405

Abstract: An accumulator assembly is includes a piston located within a pressure canister. The pressure canister has a piston stop therein. The piston stop is located radially outboard of a biasing member or spring located within the pressure canister between the pressure canister and the piston. A support bracket is disposed on an end of the pressure canister in alignment with the spring. The outboard piston stop and the support bracket reduce the stresses due to reaction forces when the accumulator assembly is fully charged. By reducing the stresses due to reaction forces, the accumulator assembly can be made from steel casting or plastic molding without sacrificing the charge capacity of the accumulator assembly.

Abstract translation: 储液器组件包括位于压力罐内的活塞。 压力罐在其中具有活塞止动件。 活塞止动件位于位于压力罐和活塞之间的压力罐内的偏置构件或弹簧的径向外侧。 支撑托架设置在与弹簧对准的压力罐的端部上。 当蓄能器组件充满电时，外侧活塞止动器和支撑支架减小由于反作用力引起的应力。 通过减少由于反作用力引起的应力，蓄能器组件可以由铸钢或塑料模制而成，而不会牺牲蓄能器组件的充电能力。

公开(公告)号：US20150000949A1

公开(公告)日：2015-01-01

申请号：US13928589

申请日：2013-06-27

Applicant: Caterpillar Inc.

Inventor： Cody Moore

IPC: B25D9/14 ,  B25D9/12 ,  B25D9/16 ,  F15B1/12

CPC classification number: B25D9/145 ,  B25D9/12 ,  B25D2209/002 ,  F15B1/106 ,  F15B1/12 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/405 ,  F15B2201/41 ,  F15B2201/43

Abstract: A hydraulic hammer is disclosed that includes at least one accumulator that is connectable to a hydraulic circuit disposed in the housing of the hammer. The accumulator includes an annular base coupled to a cover with a diaphragm sandwiched therebetween. The annular base includes a proximal end and a distal end. The proximal end of the annular base defines a first central opening. The proximal end of the base in the housing define an annular inlet that encircles the first central opening and that is in communication with the first central opening. The cover also includes a proximal end and a distal end. The proximal end of the cover is coupled to the distal end of the base with the outer periphery of the diaphragm sandwiched therebetween.

Abstract translation: 公开了一种液压锤，其包括至少一个可连接到设置在锤的壳体中的液压回路的蓄能器。 蓄能器包括联接到盖的环形基座，其间夹有隔膜。 环形基座包括近端和远端。 环形基部的近端限定第一中心开口。 壳体中的基部的近端限定环绕第一中心开口并且与第一中心开口连通的环形入口。 盖子还包括近端和远端。 盖的近端连接到基座的远端，隔膜的外周夹在其间。

公开(公告)号：US08474488B2

公开(公告)日：2013-07-02

申请号：US13107395

申请日：2011-05-13

Applicant: Dong Yo Ryu ,  Min Geun Song

Inventor： Dong Yo Ryu ,  Min Geun Song

IPC: F16L55/04

CPC classification number: B60T8/4275 ,  B60T7/102 ,  B60T8/368 ,  B60T8/4291 ,  F15B1/04 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/312 ,  F15B2201/405

Abstract: A low pressure accumulator for an anti-lock brake system of a vehicle. The low pressure accumulator includes a cylinder having one end communicated with a fluid path connected to a valve and a pump and an opposite end formed with an opening, a piston moving back and forth in the cylinder, a spring installed in the cylinder to elastically support the piston, and a plug installed in the opening of the cylinder to support one end of the spring. The plug includes a vent to ventilate air through an inside and an outside of the cylinder.

Abstract translation: 一种用于车辆防抱死制动系统的低压蓄能器。 低压蓄能器包括一个气缸，其一端与连接到阀的流体路径和泵连通，并且形成有开口的相对端，在气缸中前后移动的活塞，安装在气缸中以弹性支撑的弹簧 活塞和安装在气缸的开口中以支撑弹簧的一端的塞子。 塞子包括通气孔，以使空气通过气缸的内部和外部。