公开(公告)号：US06390133B1

公开(公告)日：2002-05-21

申请号：US09572740

申请日：2000-05-17

Applicant: Douglas T. Patterson ,  Gerd A. Baur ,  Paul H. Hanson

Inventor： Douglas T. Patterson ,  Gerd A. Baur ,  Paul H. Hanson

IPC: F16L5504

CPC classification number: F15B1/04 ,  B60T8/3615 ,  B60T8/368 ,  F15B2201/21 ,  F15B2201/312

Abstract: A hydraulic accumulator assembly for a hydraulic brake system. The accumulator assembly includes a pump housing having therein at least one accumulator bore. The accumulator bore has an axis and an inner wall. A piston is movable within the accumulator bore and divides the accumulator bore into an accumulator chamber, which is communicable with the hydraulic brake system, and a spring chamber. There is a spring in the spring chamber for biasing the piston in the direction of the accumulator chamber. A passageway in the pump housing is closely spaced from the inner wall so as to form a relatively thin wall thickness between the passageway and the inner wall. A vent bore is punched in the inner wall and communicates between the spring chamber and the passageway. The vent bore is punched in a direction away from the axis.

Abstract translation: 一种用于液压制动系统的液压蓄能器组件。 蓄能器组件包括其中具有至少一个蓄能器孔的泵壳体。 蓄能器孔具有轴线和内壁。 活塞可以在蓄能器孔内移动，并将蓄能器孔分成可与液压制动系统连通的蓄能室和弹簧室。 在弹簧室中有弹簧，用于沿蓄能器室的方向偏压活塞。 泵壳体中的通道与内壁紧密地间隔开，以便在通道和内壁之间形成相对较薄的壁厚。 通气孔在内壁冲压，并在弹簧室和通道之间连通。 通气孔沿远离轴线的方向冲压。

公开(公告)号：US5974910A

公开(公告)日：1999-11-02

申请号：US967790

申请日：1997-11-10

Applicant: Alex Paykin ,  David Dobbs

Inventor： Alex Paykin ,  David Dobbs

IPC: F15B1/02 ,  F15B1/04 ,  F15B1/24 ,  F16H61/00 ,  F16H61/06 ,  F16J9/00 ,  F16H57/02

CPC classification number: F16H61/067 ,  F15B1/24 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/413 ,  F15B2201/61 ,  Y10T74/2186

Abstract: An accumulator piston for an automatic transmission. The piston comprises two components, the first and second being cup elements welded together with their closed ends in abutting relation. The lower cup includes a curled back portion with a radial flange having an axially extending bi-directional oil seal thereon, and spaced apart recesses in the curled back portion to permit oil to flow therein. The upper cup includes a radial flange of reduced diameter compared to the lower cup flange. The flange also has a lip seal thereon. The piston is spring-loaded and moves up and down in a bore and counterbore in response to fluid flow on either side of the piston to absorb shifting shocks.

Abstract translation: 用于自动变速箱的蓄能器活塞。 活塞包括两个部件，第一和第二杯杯元件以其邻接关系的封闭端焊接在一起。 下杯包括卷曲后部，其具有径向凸缘，其上具有轴向延伸的双向油封，并且在卷曲的后部中具有间隔开的凹部，以允许油在其中流动。 上杯与下杯法兰相比，包括径向法兰缩径。 凸缘也在其上具有唇形密封。 活塞是弹簧加载的，响应于活塞两侧的流体流动而在孔和沉孔中上下移动以吸收移动冲击。

公开(公告)号：US5927178A

公开(公告)日：1999-07-27

申请号：US976775

申请日：1997-11-24

Applicant: Sven Stenquist

Inventor： Sven Stenquist

IPC: B30B1/00 ,  F15B1/02 ,  F15B1/24 ,  F15B7/08 ,  F01B7/20 ,  F15B21/04

CPC classification number: B30B1/007 ,  F15B1/02 ,  F15B1/24 ,  F15B7/08 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/215 ,  F15B2201/312 ,  F15B2201/32 ,  F15B2201/413 ,  F15B2201/4155

Abstract: A hydraulic actuator for a hydraulically driven device has a hydraulic cylinder, a first piston slidably received for reciprocation within the cylinder and defining a hydraulic fluid chamber with the cylinder, a second piston slidably received for reciprocation within a cavity in an actuator rod connected to the first piston and defining a gas chamber on one side of the second piston and an accumulator chamber on the other side of the second piston. A passage formed in the first piston communicates the hydraulic chamber with the accumulator chamber and a pressure relief valve selectively permits hydraulic fluid flow through the passage from the hydraulic chamber to the accumulator chamber to limit the maximum pressure of the hydraulic fluid within the hydraulic chamber and the hydraulically driven device. Preferably, during normal operation of the actuator and the hydraulically driven device the pressure of the hydraulic fluid is less than that required to open the pressure relief valve. The pressure of the gas in the gas chamber and acting on the second piston forces hydraulic fluid in the accumulator chamber into the hydraulic fluid chamber through a check valve when the pressure in the accumulator chamber is greater than the pressure in the hydraulic fluid chamber to reset the accumulator.

Abstract translation: 用于液压驱动装置的液压致动器具有液压缸，第一活塞可滑动地容纳以用于在缸内往复运动并且限定具有缸的液压流体室;第二活塞，其可滑动地容纳在与连接到所述缸的致动器杆内的空腔内往复运动 第一活塞并且在第二活塞的一侧上限定一个气室，在第二活塞的另一侧限定一个储气室。 形成在第一活塞中的通道将液压室与蓄能室连通，并且压力释放阀选择性地允许液压流体流过从液压室到蓄能室的通道，以限制液压室内的液压流体的最大压力， 液压驱动装置。 优选地，在致动器和液压驱动装置的正常操作期间，液压流体的压力小于打开压力释放阀所需的压力。 气室中的气体作用在第二活塞上的压力当蓄能室中的压力大于液压室中的压力以复位时，通过止回阀迫使蓄能室中的液压流体进入液压腔室 蓄能器。

公开(公告)号：US5638868A

公开(公告)日：1997-06-17

申请号：US660676

申请日：1996-06-05

Applicant: Haim Loran

Inventor： Haim Loran

IPC: F16L55/04 ,  F15B1/10 ,  F15B1/22 ,  F16L55/053

CPC classification number: F15B1/22 ,  F15B1/103 ,  F16L55/053 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F15B2201/411

Abstract: An improved hydraulic accumulator is introduced wherein a valve mechanism is used to seal a hydraulic fluid before the pressure charged piston reaches the end of the accumulator to minimize the loss of compressed gas by eliminating the pressure differential when the piston is fully extended, thereby prolonging the fatigue life of the accumulator vessel. Reduction of the pressure loading on the vessel will also prolong the life of the piston seals and metal bellows effectively extending the accumulator life and effectively allowing design for weight reduction and preservation of the integrity of the complete hydraulic or pneumatic system.

Abstract translation: 引入了一种改进的液压蓄能器，其中阀机构用于在压力充满的活塞到达蓄能器的端部之前密封液压流体，以通过消除活塞完全伸长时的压力差来最小化压缩气体的损失，从而延长 蓄能器容器的疲劳寿命。 降低容器上的压力负载也将延长活塞密封件和金属波纹管的使用寿命，有效延长了蓄能器的使用寿命，并有效地允许设计减轻重量并保持整个液压或气动系统的完整性。

公开(公告)号：US5354187A

公开(公告)日：1994-10-11

申请号：US107531

申请日：1993-08-16

Applicant: Russ W. Holland ,  Ken Garrigues

Inventor： Russ W. Holland ,  Ken Garrigues

IPC: B60T8/36 ,  B60T8/42 ,  F15B1/24 ,  F16L55/04

CPC classification number: F15B1/24 ,  B60T8/368 ,  B60T8/4275 ,  F15B2201/21 ,  F15B2201/312

Abstract: A low pressure accumulator assembly for use with a fluid pump comprises a pump housing with a longitudinally extending chamber having a base with a fluid flow opening. An accumulator is secured in the pump housing chamber. The accumulator includes an accumulator housing with a longitudinally extending bore. A piston is biased outwardly of the bore to selectively engage the base of the pump housing chamber. A protrusion extends outwardly from the piston to limit an area of engagement between the piston and the base so that fluid flowing from said opening into the chamber may engage a greater area of the piston.

Abstract translation: 与流体泵一起使用的低压蓄能器组件包括具有纵向延伸腔室的泵壳体，其具有带流体流动开口的底座。 蓄能器固定在泵容腔中。 蓄能器包括具有纵向延伸的孔的蓄能器壳体。 活塞从孔的外侧偏置以选择性地接合泵壳体的底座。 突起从活塞向外延伸以限制活塞和底座之间的接合区域，使得从所述开口流入腔室的流体可以接合活塞的较大区域。

公开(公告)号：US5341726A

公开(公告)日：1994-08-30

申请号：US40525

申请日：1993-03-31

Applicant: M. Burnell Watson

Inventor： M. Burnell Watson

IPC: B65D88/60 ,  F15B1/24 ,  F15B21/04

CPC classification number: F15B1/24 ,  B65D88/60 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/41 ,  F15B2201/4155

Abstract: An elongate tank for transport or for storage in bulk of semisolid and fluid materials, such as grease and oil. The tank has an outlet at one end thereof for discharging material contained therein, and has a generally cylindric interior surface. A generally cylindric piston is sized to slide in the tank and is movable in a direction toward the outlet thereby to place material in the tank through the outlet. The piston comprises a piston member and an elastic annular seal carried in a circumferential channel around the piston member. The seal has an annular base and an annular crown disposed radially outwardly of and joined to the base with a fluid chamber between the base and crown. The seal is expandable by introducing fluid into the fluid chamber. Expansion of the seal causes the crown to be pressed radially outwardly against the interior surface of the tank so that when the piston member slides in the tank a portion of the crown is maintained in sliding engagement with the interior surface thereby to wipe the material therefrom and to seal the piston member relative to the tank. The crown has side surfaces and an outwardly facing surface. The outwardly facing surface of the crown has two sloping surface portions and a circumferential ridge intermediate the side surfaces. The ridge is defined by the junction of the surface portions.

Abstract translation: 用于运输或储存大量半固体和流体材料（如油脂和油）的细长罐。 罐的一端具有用于排出容纳在其中的材料的出口，并且具有大致圆柱形的内表面。 大致圆柱形的活塞的尺寸被设计成在罐中滑动并且可以在朝向出口的方向上移动，从而通过出口将材料放置在罐中。 该活塞包括活塞构件和一个弹性环形密封件，该密封件围绕活塞构件周向通道。 密封件具有环形基部和环形凸台，其设置在基部和表冠之间的流体室的基部的径向外侧并与基部接合。 通过将流体引入流体室可以扩大密封。 密封件的膨胀使得表冠被径向向外压靠在罐的内表面上，使得当活塞构件在罐中滑动时，冠部的一部分保持与内表面滑动接合，从而从中擦拭材料， 以相对于罐密封活塞构件。 表冠具有侧表面和向外表面。 冠的向外表面具有两个倾斜表面部分和在侧表面之间的周向脊。 脊由表面部分的接合部限定。

公开(公告)号：US4799048A

公开(公告)日：1989-01-17

申请号：US60959

申请日：1987-06-10

Applicant: Takahiro Goshima ,  Yoshiyuki Hattori ,  Hiroji Kinbara ,  Hiromi Otsuki ,  Yoshihisa Nomura ,  Nobuyasu Nakanishi

Inventor： Takahiro Goshima ,  Yoshiyuki Hattori ,  Hiroji Kinbara ,  Hiromi Otsuki ,  Yoshihisa Nomura ,  Nobuyasu Nakanishi

IPC: F15B1/04 ,  F15B1/24 ,  G08B21/00 ,  F16K37/00

CPC classification number: F15B1/24 ,  F15B1/04 ,  B60T8/4068 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/411 ,  F15B2201/515

Abstract: An accumulator has a piston axially slidably disposed in a cylinder mounted in a casing, the cylinder and the piston jointly defining a reservoir communicating with an inlet/outlet port in the casing. A piston rod axially movably disposed in the casing has an end slidably fitted in the cylindrical hole of the piston. The piston rod is normally urged by a spring to force the piston into the reservoir. The accumulator also includes a switch mechanism for detecting the position of the piston in the cylinder. The switch mechanism may comprise a reed switch, a light-sensitive switch, a pressure-sensitive switch, or a pushbutton switch.

Abstract translation: 蓄能器具有轴向可滑动地设置在安装在壳体中的气缸中的活塞，气缸和活塞联合地限定与壳体中的入口/出口连通的储存器。 轴向可移动地设置在壳体中的活塞杆具有可滑动地装配在活塞的圆柱形孔中的端部。 活塞杆通常由弹簧推动以迫使活塞进入储存器。 蓄能器还包括用于检测活塞在气缸中的位置的开关机构。 开关机构可以包括舌簧开关，感光开关，压敏开关或按钮开关。

公开(公告)号：US4678010A

公开(公告)日：1987-07-07

申请号：US704521

申请日：1985-02-22

Applicant: Gene Purvis ,  Russell Phelps ,  Tim Dupler ,  Patrick Landoll ,  Leonard Landoll

Inventor： Gene Purvis ,  Russell Phelps ,  Tim Dupler ,  Patrick Landoll ,  Leonard Landoll

IPC: F15B1/24 ,  F16L55/04

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/41 ,  F15B2201/415

Abstract: A gas-liquid piston accumulator having improved piston lubrication by providing a plurality of blind hole lubricating passages around the periphery of the piston.

Abstract translation: 一种气液活塞蓄能器，其通过围绕活塞的周边设置多个盲孔润滑通道而具有改进的活塞润滑。

公开(公告)号：US4564048A

公开(公告)日：1986-01-14

申请号：US614334

申请日：1984-05-25

Applicant: Paul H. Taylor

Inventor： Paul H. Taylor

IPC: F15B1/04 ,  F16L55/04

CPC classification number: F15B1/04 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/41

Abstract: A pressure accumulator including a plastic cylinder having first and second cylinder ends, a piston in the cylinder, a bore in the first cylinder end, a piston rod attached to the piston and extending through the bore, a cylinder cap at the second end, a fluid inlet at the second cylinder end for conducting fluid into the cylinder, an external portion on the piston rod located outside of the cylinder, and a composite helical spring encircling the cylinder and having a first end attached proximate the cap and a second end attached to the external portion of the piston rod.

Abstract translation: 一种压力蓄能器，包括具有第一和第二气缸端的塑料圆筒，气缸中的活塞，第一气缸端中的孔，连接到活塞并延伸穿过孔的活塞杆，在第二端的气缸盖， 在第二气缸端处的流体入口用于将流体引导到气缸中，位于气缸外部的活塞杆上的外部部分和围绕气缸的复合螺旋弹簧，并且具有靠近盖附接的第一端和附接到 活塞杆的外部。

公开(公告)号：US4461322A

公开(公告)日：1984-07-24

申请号：US492203

申请日：1983-05-06

Applicant: Carl R. Mills

Inventor： Carl R. Mills

IPC: F15B1/24 ,  F16L55/05 ,  F16L55/04

CPC classification number: F15B1/24 ,  F16L55/05 ,  F15B2201/205 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/32 ,  F15B2201/411 ,  F15B2201/4155

Abstract: A piston accumulator having a piston-poppet assembly to equalize substantially the liquid-gas pressure appearing across a piston seal. The assembly projects into the hydraulic chamber from its housed position within a socket recess formed in the piston. In response to an excess pressure differential between the gas chamber and liquid chamber of the accumulator, the assembly prematurely seals off the hydraulic passage which communicates with the hydraulic chamber of the accumulator. This premature sealing operation traps and pressurizes a small portion of hydraulic liquid within the reduced hydraulic chamber so that the pressure differential which would otherwise appear across the piston seal is reduced or eliminated.

Abstract translation: 一种具有活塞提动阀组件的活塞蓄能器，其基本上等于出现在活塞密封件上的液体气体压力。 组件从形成在活塞中的插座凹部内的容纳位置突出到液压室中。 响应于储气罐的气室和液室之间的过大的压力差，组件过早地密封与储液器的液压室连通的液压通道。 这种过早的密封操作在减小的液压室内捕获和加压一小部分液压液体，从而降低或消除了否则将出现在活塞密封件上的压力差。