公开(公告)号：US20130213029A1

公开(公告)日：2013-08-22

申请号：US13773082

申请日：2013-02-21

Applicant: Magneti Marelli S.p.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B1/027

CPC classification number: F15B1/027 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/305

Abstract: A hydraulic servo-control of a servo-controlled gearbox comprises hydraulic actuators defining chambers, a storing tank containing control fluid used by the actuators at room pressure, a hydraulic accumulator containing control fluid under pressure, a motor pump drawing the fluid from the tank and feeding it under pressure to the accumulator, and solenoid valves selectively connecting the chambers to the tank and accumulator. The accumulator includes an outer housing defining an inner cylindrical surface defining a first diameter, a piston arranged and axially slidable and mobile inside the housing and defining there a first variable-volume chamber for a gas and second variable-volume chamber for the fluid under pressure, and a limit stopper arranged at an open end of the housing, acting as a striker for the piston, and having an annular circlip defining an opening and overall second diameter approximating by excess the first diameter of the surface of the housing.

Abstract translation: 伺服控制齿轮箱的液压伺服控制装置包括液压致动器限定腔室，储存罐，容纳由室内致动器使用的控制流体;液压蓄能器，其容纳压力下的控制流体;电动泵，其从罐中抽取流体; 在压力下将其供给到蓄能器，并且电磁阀选择性地将室连接到罐和蓄能器。 蓄能器包括外壳，其限定限定第一直径的内圆柱形表面，活塞布置并且在壳体内部可轴向滑动和移动，并且在其中限定用于气体的第一可变容积室和用于压力下的流体的第二可变容积室 以及设置在所述壳体的开口端处的限位挡板，用作所述活塞的撞针，并且具有限定开口的环形卡环，并且具有通过所述壳体的所述表面的第一直径过大的总体第二直径。

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。

公开(公告)号：US08428832B2

公开(公告)日：2013-04-23

申请号：US12641631

申请日：2009-12-18

Applicant: Sameer S. Marathe ,  John J. Baldauf

Inventor： Sameer S. Marathe ,  John J. Baldauf

IPC: E01C7/06

CPC classification number: E02F9/2271 ,  E02F9/2217 ,  E02F9/264 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/4056 ,  F15B2201/415 ,  F15B2201/515 ,  G01G19/10 ,  G01G23/3728

Abstract: An apparatus for determining the weight of a payload in a bucket of a machine where the bucket is attached to a chassis of the machine by a linkage. The apparatus comprises an energy storage device for storing potential energy of the bucket, payload, and linkage when the bucket is moved from a first suspended position to a second suspended position. A mechanism provides physical data corresponding to a physical change in the energy storage device caused by storage of the potential energy and a processor calculates the weight of the payload using the physical data.

Abstract translation: 一种用于确定机器的铲斗中的有效载荷的重量的装置，其中铲斗通过联动装置附接到机器的底盘。 该装置包括用于在铲斗从第一悬挂位置移动到第二悬挂位置时存储铲斗的有效能量，有效载荷和联动装置的能量存储装置。 一种机制提供对应于能量存储装置中通过存储潜在能量引起的物理变化的物理数据，并且处理器使用该物理数据计算有效载荷的权重。

公开(公告)号：US20120266590A1

公开(公告)日：2012-10-25

申请号：US13093701

申请日：2011-04-25

Applicant: Matthew C. Janes ,  Douglas D. Reelie ,  Bradley E. Vansickle ,  Stewart G. Page

Inventor： Matthew C. Janes ,  Douglas D. Reelie ,  Bradley E. Vansickle ,  Stewart G. Page

IPC: F15B1/027 ,  B23P11/00 ,  F16L55/02

CPC classification number: F15B1/14 ,  F15B1/10 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/312 ,  F15B2201/3151 ,  Y02E60/15 ,  Y10T137/0402

Abstract: A method and apparatus for reducing undesirable pressure fluctuations over predetermined pressure and frequency ranges in a working fluid system, facilitating maintenance of appropriate levels of stored energy in the fluid system. Embodiments may be employed within a fluid system to dampen pressure fluctuations over an adequately large pressure range, for example in a resonant vibratory system. In such systems, pressures vary dramatically depending on whether resonance is achieved. An apparatus comprises a pressure vessel having a self equilibrating flexible piston device. The piston separates a gas volume from a fluid volume exposed to the system flow. The piston translates within the pressure vessel to equilibrate the gas and fluid pressures. A flexible portion of the piston deflects at high frequency and adequate volume to reduce undesirable pressure fluctuations. The flexible portion translates force via its outer periphery to a ring portion which translates within the pressure vessel.

Abstract translation: 一种用于减少在工作流体系统中的预定压力和频率范围内的不期望的压力波动的方法和装置，便于在流体系统中维持适当水平的储存能量。 可以在流体系统内采用实施例来抑制在适当大的压力范围上的压力波动，例如在共振振动系统中。 在这样的系统中，压力根据是否达到谐振而急剧变化。 一种装置包括具有自平衡柔性活塞装置的压力容器。 活塞将气体体积与暴露于系统流量的流体体积分离。 活塞在压力容器内平移以平衡气体和流体压力。 活塞的柔性部分以高频率和足够的体积偏转以减少不期望的压力波动。 柔性部分通过其外周将力转换成在压力容器内平移的环部分。

公开(公告)号：US07464799B2

公开(公告)日：2008-12-16

申请号：US11346563

申请日：2006-02-03

Applicant: Shigeru Kojima ,  Tomohiko Baba

Inventor： Shigeru Kojima ,  Tomohiko Baba

IPC: F16F9/52

CPC classification number: F16F9/081 ,  F15B1/103 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F16F9/067

Abstract: A gas chamber (G) and a liquid chamber (R) are separated by a free piston (2) in a cylinder (1) of a hydraulic damper. The free piston (2) comprises a hollow main body (3), a metal bellows (4) which elongates and contracts according to a pressure balance between the gas chamber (G) and liquid chamber (R), and a stopper (8) fixed to the main body (3) for preventing the metal bellows (4) from elongating beyond a predetermined length. By compensating for variation in the capacity of the liquid chamber (R) caused by a displacement of the piston (10) in the cylinder (1) by elongation or contraction of the metal bellows (4), the damping characteristic of the damper is prevented from becoming unstable due to a frictional force acting on the free piston (2). The stopper (8) prevents excessive stress from being exerted on the metal bellows (4).

Abstract translation: 气室（G）和液室（R）由液压阻尼器的气缸（1）中的自由活塞（2）分开。 自由活塞（2）包括中空主体（3），根据气室（G）和液室（R）之间的压力平衡伸长和收缩的金属波纹管（4）和止动件（8） 固定到主体（3），用于防止金属波纹管（4）伸长超过预定长度。 通过补偿由于金属波纹管（4）的伸长或收缩使活塞（10）在气缸（1）中的位移而导致的液体室（R）容量的变化，阻尼器的阻尼特性被阻止 由于作用在自由活塞（2）上的摩擦力而变得不稳定。 止动件（8）防止过大的应力施加在金属波纹管（4）上。

公开(公告)号：US07395838B2

公开(公告)日：2008-07-08

申请号：US10544110

申请日：2004-01-22

Applicant: Norbert Weber ,  Herbert Baltes

Inventor： Norbert Weber ,  Herbert Baltes

IPC: F16L55/04

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312

Abstract: A piston-type accumulator includes an accumulator housing provided in the form of a cylinder tube (1). A separating piston (15) separates two working spaces (5) and (6) from one another in the housing and can be displaced in an axial direction within a piston stroke area (19) of the cylinder tube (1). The cylindrical tube is closed at one axial end by a closure part (7). The closure part is defined by deforming a deforming area (9) of the wall of the cylinder tube (1). The deforming area adjoining the piston stroke area (19) is provided in the form of part that exists as a single piece with the housing. A stop body (25), which limits the movement of the separating piston (15) before reaching the deforming area (9), is provided inside the cylinder tube (1) at the location where the piston stroke area (19) transitions into the deforming area (9).

Abstract translation: 活塞式蓄能器包括以气缸管（1）的形式设置的蓄能器壳体。 分离活塞（15）将壳体中的两个工作空间（5）和（6）彼此分开，并且可以在气缸管（1）的活塞冲程区域（19）内沿轴向移位。 圆柱形管在一个轴向端部处由封闭部件（7）封闭。 闭合部分通过使气缸管（1）的壁的变形区域（9）变形来限定。 与活塞冲程区域（19）相邻的变形区域以与壳体一体式存在的部分的形式提供。 在活塞冲程区域（19）转变为位置的位置，在气缸筒（1）的内部设置限制分离活塞（15）在到达变形区域（9）之前的运动的止挡体（25） 变形区域（9）。

公开(公告)号：US20070181199A1

公开(公告)日：2007-08-09

申请号：US10588821

申请日：2005-03-09

Applicant: Norbert Weber

Inventor： Norbert Weber

IPC: F16L55/04

CPC classification number: F15B1/106 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/415

Abstract: The invention relates to a hydraulic accumulator with an accumulator housing provided in the form of a tube (1), inside of which a separating element, preferably a piston (9), which can be displaced in the axial direction (7) of the tube, separates pressure chambers (13, 15) located on either side of the separating piston. In addition, the tube (1) is closed at at least one end by a cover-like closing part (5) having a contact surface for joining to the respective end edge of the tube (1). The contact surface has a flat part provided in the form of an annular surface (39), which projects inside the tube (1) and which serves to positively brace the tube wall against radial forces, and the contact surface has an annular surface (41), which extends in a radial direction and which serves to positively brace the tube wall against axial forces.

Abstract translation: 本发明涉及一种液压蓄能器，其具有以管（1）的形式设置的蓄能器壳体，其中分离元件，优选为活塞（9），该分离元件可沿管的轴向（7）移位 分离位于分离活塞两侧的压力室（13,15）。 此外，管（1）在至少一端处被具有用于接合到管（1）的相应端边缘的接触表面的盖状封闭部分（5）封闭。 接触表面具有以环形表面（39）的形式设置的平坦部分，该环形表面突出在管（1）内部，并且用于抵抗径向力正向地支撑管壁，并且接触表面具有环形表面（41） ），其在径向方向上延伸并且用于抵抗轴向力正向地支撑管壁。

公开(公告)号：US07152931B2

公开(公告)日：2006-12-26

申请号：US10615833

申请日：2003-07-10

Applicant: Kenichi Suzuki ,  Kyosuke Hata ,  Yoshihiko Tada

Inventor： Kenichi Suzuki ,  Kyosuke Hata ,  Yoshihiko Tada

IPC: B60T17/04 ,  F16L55/04

CPC classification number: F15B1/22 ,  B60T13/148 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F15B2201/32 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/415 ,  F16L55/053 ,  F16L55/055

Abstract: A hydraulic circuit includes an accumulator having an inflow passage which introduces a hydraulic fluid which is discharged from a hydraulic pump into a hydraulic fluid chamber and a discharge passage which discharges the hydraulic fluid from the hydraulic fluid chamber to a hydraulic actuator. The hydraulic circuit includes a valve mechanism which restricts the supply of hydraulic fluid from the hydraulic fluid chamber to the hydraulic actuator when the pressure in the hydraulic fluid chamber is less than a set pressure and which releases the restriction of the supply of hydraulic fluid to the hydraulic actuator when the pressure in the hydraulic fluid chamber is at least the set pressure. The valve mechanism may be installed inside the accumulator.

Abstract translation: 液压回路包括具有将从液压泵排出的液压流体引入液压流体室的流入通路的蓄压器和将液压流体从液压流体室排出到液压致动器的排出通路。 液压回路包括一个阀机构，当液压流体室中的压力小于设定压力时，该阀机构限制液压流体从液压流体腔向液压致动器的供应，并释放液压流体供应到 当液压流体室中的压力至少为设定压力时，液压致动器。 阀机构可以安装在蓄能器内部。

公开(公告)号：US20040108008A1

公开(公告)日：2004-06-10

申请号：US10314361

申请日：2002-12-09

Inventor： Benton F. Baugh

IPC: F16L055/04

CPC classification number: F15B21/041 ,  E21B33/0355 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/32 ,  F15B2201/411 ,  F15B2201/415

Abstract: The method of providing a piston type accumulator with a controlled depth liquid shield on the top of a piston with seals separating a pressurized gas from the seals sealing the pressurized liquid comprising providing a portion of the gas in a chamber portion above said piston and a portion of the gas in a chamber portion not above said piston such that liquids accumulating in the chamber above the piston can be vented into the chamber not above the piston for venting to a location outside said chambers.

公开(公告)号：US06634386B1

公开(公告)日：2003-10-21

申请号：US09969543

申请日：2001-10-02

Applicant: Brian Maloney ,  John Cassidy ,  Joseph A. Starr

Inventor： Brian Maloney ,  John Cassidy ,  Joseph A. Starr

IPC: F16L5504

CPC classification number: F15B1/08 ,  B60T8/34 ,  B60T8/3685 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/413 ,  Y10S303/11

Abstract: A hydraulic control unit (HCU) for a vehicle brake system having an HCU body and an accumulator mounted in the HCU body. A grommet is provided for mounting the HCU body to a vehicle body and resiliently separating the HCU body from the vehicle body. The grommet defines a vent path for the accumulator and includes a hollow generally cylindrical shaft. The shaft has a closed end and an open end, and the closed end has an opening therethrough. An enlarged annular head is formed on the open end of the shaft and has an inner surface defining an axial bore therethrough. The axial bore is in fluid communication with the hollow shaft, the annular head further has a crown cut geometry providing radially extending grooves within an axial face of the annular head, the radially extending grooves being in fluid communication with the axial bore of the annular head.

Abstract translation: 一种用于车辆制动系统的液压控制单元（HCU），其具有HCU本体和安装在HCU体内的蓄能器。 提供了一种用于将HCU主体安装到车体并将HCU主体与车体弹性分离的索环。 垫圈限定了蓄能器的通气路径，并且包括中空的大​​致圆柱形的轴。 轴具有封闭端和开口端，并且封闭端具有穿过其中的开口。 在轴的开口端上形成一个扩大的环形头部，并且具有限定穿过其中的轴向孔的内表面。 轴向孔与空心轴流体连通，环形头还具有冠形切割几何形状，其在环形头部的轴向面内提供径向延伸的凹槽，径向延伸的凹槽与环形头部的轴向孔流体连通 。