公开(公告)号：US20030178849A1

公开(公告)日：2003-09-25

申请号：US10395273

申请日：2003-03-25

Applicant: Advics Co., LTD.

Inventor： Mitsuharu Hayashi ,  Kenichi Suzuki ,  Yuichiro Sakakibara

IPC: F16L015/00

CPC classification number: F16L15/008

Abstract: In a hydraulic joint structure for joining respective tubular joint portions of two members, opposed pressure-contact surfaces of the two members for preventing loosening form a downstream space on the downstream side of a seal member. A passage is formed on the pressure-contact surfaces in such a manner that when working fluid leaks from the upstream side of the seal member to the downstream space via a clearance between the seal member and the tubular joint portions, the passage permits the working fluid to flow from the downstream space to an external space in the state in which the pressure-contact surfaces are in pressure contact. The passage is formed in such a manner that the passage extends in a circumferential direction of the thread portions, and communicates at one end with the downstream space and at the other end with the external space.

Abstract translation: 在用于连接两个构件的各个管接头部分的液压接头结构中，用于防止松动的两个构件的相对的压力接触表面在密封构件的下游侧形成下游空间。 在压力接触表面上形成通道，使得当工作液体通过密封构件和管状接头部分之间的间隙从密封构件的上游侧泄漏到下游空间时，通道允许工作流体 在压力接触表面处于压力接触的状态下从下游空间流到外部空间。 通道形成为使得通道在螺纹部分的圆周方向上延伸，并且在一端与下游空间并且在另一端与外部空间连通。

公开(公告)号：US20040017105A1

公开(公告)日：2004-01-29

申请号：US10615833

申请日：2003-07-10

Applicant: ADVICS CO., LTD.

Inventor： Kenichi Suzuki ,  Kyosuke Hata ,  Yoshihiko Tada

IPC: B60T008/40

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：US20030178076A1

公开(公告)日：2003-09-25

申请号：US10395267

申请日：2003-03-25

Applicant: Advics Co., LTD.

Inventor： Kenichi Suzuki ,  Yuichiro Sakakibara

IPC: F16L055/04

CPC classification number: F15B1/103 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3153 ,  F15B2201/32 ,  F16L55/053

Abstract: A bellows-type hydraulic accumulator includes a main shell defining a pressure space, and a bellows unit sectioning the pressure space into a gas chamber and a liquid chamber. An auxiliary shell is disposed inside the liquid chamber and fixed to the main shell. The auxiliary shell has an auxiliary liquid chamber communicating with a liquid port. A movable wall member is disposed in the auxiliary shell in order to section the interior of the auxiliary shell into a first interior portion communicating with the liquid port and a second interior portion communicating with the liquid chamber via a communication passage formed in the auxiliary shell.

Abstract translation: 波纹管式液压蓄能器包括限定压力空间的主壳和将压力空间分成气室和液室的波纹管单元。 辅助壳体设置在液体室内部并固定到主壳体上。 辅助壳体具有与液体端口连通的辅助液体室。 可动壁构件设置在辅助壳体中，以便将辅助壳体的内部分成与液体端口连通的第一内部部分和通过形成在辅助壳体中的连通通道与液体室连通的第二内部部分。