公开(公告)号：US20150096291A1

公开(公告)日：2015-04-09

申请号：US14384399

申请日：2013-03-25

Applicant: KAYABA INDUSTRY CO., LTD.

Inventor： Tooru Takeuchi

IPC: E02F9/22 ,  F15B13/042 ,  F15B13/04 ,  F15B11/00 ,  F15B13/02

CPC classification number: E02F9/2285 ,  E02F9/2203 ,  E02F9/2221 ,  E02F9/2225 ,  E02F9/2267 ,  F15B11/003 ,  F15B11/044 ,  F15B13/01 ,  F15B13/021 ,  F15B13/0402 ,  F15B13/042 ,  F15B13/0422 ,  F15B2211/20576 ,  F15B2211/30515 ,  F15B2211/30565 ,  F15B2211/3157 ,  F15B2211/329 ,  F15B2211/353 ,  F15B2211/355 ,  F15B2211/365 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/46 ,  F15B2211/50545 ,  F15B2211/5151 ,  F15B2211/575 ,  F15B2211/7053 ,  F15B2211/715 ,  F15B2211/761 ,  F16K11/0716 ,  F16K31/1221

Abstract: A fluid pressure control device includes a switching valve that operates in conjunction with a control valve by a pilot pressure to switch an operation of an operated check valve. The switching valve includes a spool that moves according to the pilot pressure of a pilot chamber, and a piston that is accommodated in the pilot chamber and imparts a thrust force to the spool upon receiving the pilot pressure. The piston includes a first piston that is slidingly accommodated in the pilot chamber and is acted upon by the pilot pressure, and a second piston whose distal end faces the spool and is inserted into an accommodating hole formed in the first piston. A spherical protrusion is provided on a center of either one of a bottom surface of the accommodating hole of the first piston and a back surface of the second piston.

Abstract translation: 流体压力控制装置包括切换阀，其通过先导压力与控制阀一起操作以切换操作的止回阀的操作。 切换阀包括根据先导室的先导压力移动的阀芯和容纳在先导室中的活塞，并且在接收到先导压力时向阀芯施加推力。 活塞包括滑动地容纳在先导室中并被先导压力作用的第一活塞，以及第二活塞，其顶端面向阀芯并插入形成在第一活塞中的容纳孔中。 在第一活塞的容纳孔的底表面和第二活塞的后表面的中心上设置有球形突起。

公开(公告)号：US20160054742A1

公开(公告)日：2016-02-25

申请号：US14443547

申请日：2013-12-03

Applicant: KAYABA INDUSTRY CO., LTD.

Inventor： Yoshinari Nakamura ,  Tooru Takeuchi

IPC: G05D16/06 ,  F16K31/126

CPC classification number: G05D16/06 ,  F16K31/126 ,  G05D16/0663 ,  G05D16/185

Abstract: A control valve includes a poppet valve moving in an axial direction relative to a seat hole so as to change a flow-path cross-sectional area of the seat hole and a spring disc biasing the poppet valve in a valve opening direction against the return spring. The spring disc includes: a secondary-pressure receiving surface being a portion moving along with a movement of the poppet valve, the secondary-pressure receiving surface configured to receive secondary pressure introduced to the secondary port; and a pilot-pressure receiving surface configured to receive pilot pressure serving as a reference pressure. The spring disc deforms elastically in accordance with pressure difference between the secondary pressure and the pilot pressure to cause the poppet valve to move in the axial direction.

Abstract translation: 控制阀包括提升阀，所述提升阀相对于座孔沿轴向方向移动，以便改变座孔的流路横截面面积;以及弹簧盘，其以阀打开方向抵靠复位弹簧 。 弹簧盘包括：二次压力接收表面，其是与提升阀的运动一起移动的部分，二次压力接收表面构造成接收引入次要端口的二次压力; 以及被配置为接收作为基准压力的先导压力的先导压力接收表面。 弹簧盘根据二次压力和先导压力之间的压力差而弹性地变形，使得提升阀沿轴向移动。

公开(公告)号：US09684315B2

公开(公告)日：2017-06-20

申请号：US14443547

申请日：2013-12-03

Applicant: KAYABA INDUSTRY CO., LTD.

Inventor： Yoshinari Nakamura ,  Tooru Takeuchi

IPC: F16K31/126 ,  G05D16/06 ,  G05D16/18

CPC classification number: G05D16/06 ,  F16K31/126 ,  G05D16/0663 ,  G05D16/185

Abstract: A control valve includes a poppet valve moving in an axial direction relative to a seat hole so as to change a flow-path cross-sectional area of the seat hole and a spring disc biasing the poppet valve in a valve opening direction against the return spring. The spring disc includes: a secondary-pressure receiving surface being a portion moving along with a movement of the poppet valve, the secondary-pressure receiving surface configured to receive secondary pressure introduced to the secondary port; and a pilot-pressure receiving surface configured to receive pilot pressure serving as a reference pressure. The spring disc deforms elastically in accordance with pressure difference between the secondary pressure and the pilot pressure to cause the poppet valve to move in the axial direction.

公开(公告)号：US09518378B2

公开(公告)日：2016-12-13

申请号：US14384399

申请日：2013-03-25

Applicant: KAYABA INDUSTRY CO., LTD.

Inventor： Tooru Takeuchi

IPC: F16D31/02 ,  E02F9/22 ,  F15B13/01 ,  F15B11/00 ,  F15B11/044 ,  F16K11/07 ,  F15B13/02 ,  F15B13/04 ,  F15B13/042

CPC classification number: E02F9/2285 ,  E02F9/2203 ,  E02F9/2221 ,  E02F9/2225 ,  E02F9/2267 ,  F15B11/003 ,  F15B11/044 ,  F15B13/01 ,  F15B13/021 ,  F15B13/0402 ,  F15B13/042 ,  F15B13/0422 ,  F15B2211/20576 ,  F15B2211/30515 ,  F15B2211/30565 ,  F15B2211/3157 ,  F15B2211/329 ,  F15B2211/353 ,  F15B2211/355 ,  F15B2211/365 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/46 ,  F15B2211/50545 ,  F15B2211/5151 ,  F15B2211/575 ,  F15B2211/7053 ,  F15B2211/715 ,  F15B2211/761 ,  F16K11/0716 ,  F16K31/1221

Abstract: A fluid pressure control device includes a switching valve that operates in conjunction with a control valve by a pilot pressure to switch an operation of an operated check valve. The switching valve includes a spool that moves according to the pilot pressure of a pilot chamber, and a piston that is accommodated in the pilot chamber and imparts a thrust force to the spool upon receiving the pilot pressure. The piston includes a first piston that is slidingly accommodated in the pilot chamber and is acted upon by the pilot pressure, and a second piston whose distal end faces the spool and is inserted into an accommodating hole formed in the first piston. A spherical protrusion is provided on a center of either one of a bottom surface of the accommodating hole of the first piston and a back surface of the second piston.

Abstract translation: 流体压力控制装置包括切换阀，其通过先导压力与控制阀一起操作以切换操作的止回阀的操作。 切换阀包括根据先导室的先导压力移动的阀芯和容纳在先导室中的活塞，并且在接收到先导压力时向阀芯施加推力。 活塞包括滑动地容纳在先导室中并被先导压力作用的第一活塞，以及第二活塞，其顶端面向阀芯并插入形成在第一活塞中的容纳孔中。 在第一活塞的容纳孔的底表面和第二活塞的后表面的中心上设置有球形突起。