公开(公告)号：US20190107169A1

公开(公告)日：2019-04-11

申请号：US15743134

申请日：2016-07-13

Applicant: KYB Corporation

Inventor： Shinichi HAGIDAIRA ,  Atsushi SAKUTA

IPC: F16F9/46 ,  F16K31/42 ,  F16K31/06 ,  F16F9/34 ,  F16K27/02

Abstract: A damping valve includes: an electromagnetic valve having: a pressure control valve that controls a pressure of an upstream side of the pressure control passage; a shut-off valve integrated into the pressure control valve and provided in an upstream side of the pressure control valve of the pressure control passage to open and close the pressure control passage; and a single solenoid that controls the pressure control valve and the shut-off valve; and a first failsafe valve provided in a first failsafe passage to apply a resistance to a flow of fluid passing therethrough. When the solenoid is not energized, the pressure control valve opens the pressure control passage and the shut-off valve closes the pressure control passage.

公开(公告)号：US20190093730A1

公开(公告)日：2019-03-28

申请号：US16094241

申请日：2017-04-19

Applicant: KYB CORPORATION

Inventor： Atsushi SAKUTA ,  Shinichi HAGIDAIRA ,  Ryouta GOMI

IPC: F16F9/32 ,  F16F9/34

Abstract: A shock absorber includes a cap which covers a joint portion between a piston connection member connecting an outer circumference of a rod to a piston and is attached to the outer circumference of the rod and the piston connection member without a gap.

公开(公告)号：US20160236533A1

公开(公告)日：2016-08-18

申请号：US15025611

申请日：2014-10-03

Applicant: KYB CORPORATION

Inventor： Yasuhiro INAGAKI ,  Shinichi HAGIDAIRA ,  Ryousuke KAMAKURA

IPC: B60G17/08 ,  F16F9/348 ,  F16F9/46

CPC classification number: B60G17/08 ,  B60G13/08 ,  F16F9/06 ,  F16F9/19 ,  F16F9/348 ,  F16F9/46

Abstract: A hydraulic shock absorber includes: an expansion-side passage and a contraction-side passage that connect an expansion-side chamber with a contraction-side chamber; an expansion-side valve body configured to open or close the expansion-side passage; a contraction-side valve body configured to open or close the contraction-side passage; an expansion-side back-pressure chamber configured to bias the expansion-side valve body; a contraction-side back-pressure chamber configured to bias the contraction-side valve body; a communicating channel that communicates with the expansion-side back-pressure chamber through an expansion-side resistance element, the communicating channel communicating with the contraction-side back-pressure chamber through a contraction-side resistance element; an expansion-side pressure introduction passage that connects the expansion-side chamber with the contraction-side back-pressure chamber; a contraction-side pressure introduction passage that connects the contraction-side chamber with the expansion-side back-pressure chamber; a regulating passage connected to the communicating channel; and a solenoid pressure control valve provided in the regulating passage to control a pressure in the upstream of the regulating passage. An expansion-side load for biasing the expansion-side valve body by virtue of the pressure of the expansion-side back-pressure chamber is larger than a contraction-side load for biasing the contraction-side valve body by virtue of the pressure of the contraction-side back-pressure chamber.

Abstract translation: 液压减震器包括：膨胀侧通道和收缩侧通道，其将膨胀侧室与收缩侧室连接; 膨胀侧阀体，其构造成打开或关闭所述膨胀侧通路; 构造成打开或关闭收缩侧通道的收缩侧阀体; 膨胀侧背压室，其构造成偏压膨胀侧阀体; 收缩侧背压室，构造成偏压收缩侧阀体; 连通通道，其通过膨胀侧电阻元件与膨胀侧背压室连通，所述连通通道通过收缩侧电阻元件与收缩侧背压室连通; 膨胀侧压力引入通道，其将膨胀侧室与收缩侧背压室连接; 收缩侧压力引入通道，其将收缩侧室与膨胀侧背压室连接; 连接到所述通信通道的调节通道; 以及设置在调节通道中以控制调节通道上游的压力的螺线管压力控制阀。 由于膨胀侧背压室的压力而使膨胀侧阀体偏压的膨胀侧负荷大于由于压缩侧的压力而使收缩侧阀体偏压的收缩侧负荷 收缩侧背压室。

公开(公告)号：US20160230832A1

公开(公告)日：2016-08-11

申请号：US15021731

申请日：2014-09-17

Applicant: KYB CORPORATION

Inventor： Shinichi HAGIDAIRA

IPC: F16F9/348 ,  F15B13/043 ,  F16F9/50

CPC classification number: F16F9/348 ,  F15B13/0433 ,  F16F9/34 ,  F16F9/3481 ,  F16F9/46 ,  F16F9/50 ,  F16F2228/066

Abstract: A damping valve includes a valve seat member that includes a port and a first valve seat, a shaft member disposed on the valve seat member, an annular main valve element that is mounted on the shaft member, seats on and separates from the first valve seat, and includes a second valve seat on an opposite side of the valve seat member, a sub valve element that is mounted on the shaft member, and seats on and separates from the second valve seat, a valve-element-between chamber that is disposed between the main valve element and the sub valve element, and on an inner peripheral side of the second valve seat, a restrictive passage that causes the port to be communicated with the valve-element-between chamber to provide a resistance to a flow of a passing fluid, a main valve element biasing part biasing the main valve element to the valve seat member side, and a sub valve element biasing part biasing the sub valve element to the main valve element side. The restrictive passage is formed of a ring-shaped gap between the main valve element and the shaft member.

Abstract translation: 阻尼阀包括阀座构件，其包括端口和第一阀座，设置在阀座构件上的轴构件，安装在轴构件上的环形主阀元件，位于第一阀座上并与第一阀座分离 ，并且包括在阀座构件的相对侧上的第二阀座，安装在轴构件上的副阀元件，并且位于第二阀座上并与第二阀座分离;副阀元件，其设置在 在主阀元件和副阀元件之间以及在第二阀座的内周侧上具有限制通道，该通道使端口与腔室之间的阀元件连通以提供对阀 将主阀元件偏置到阀座构件侧的主阀元件偏压部以及将副阀元件向主阀元件侧施力的副阀元件偏压部。 限制通道由主阀元件和轴构件之间的环形间隙形成。

公开(公告)号：US20160223043A1

公开(公告)日：2016-08-04

申请号：US15022355

申请日：2014-09-09

Applicant: KYB CORPORATION

Inventor： Shinichi HAGIDAIRA ,  Yoshifumi KOBAYASHI

IPC: F16F9/34 ,  F16K31/06

CPC classification number: F16F9/34 ,  F16F9/187 ,  F16F9/46 ,  F16F9/50 ,  F16F2230/24 ,  F16K31/06

Abstract: A damping valve includes a main valve opening and closing a main passage, and a pilot passage reducing a pressure of the upstream of the main passage by a throttle to guide as a back-pressure biasing the main valve to the closing direction. A pressure control valve being disposed on the downstream of the throttle and including a seating portion controlling the back-pressure, and a switching valve including a circular depressed portion opening and closing the pilot passage are integrated and controlled by a single solenoid. The damping valve includes fail passages being branched from the downstream of the throttle to bypass the main valve, and a fail valve opening and closing the fail passage. The switching valve is arranged on the upstream of the pressure control valve in the pilot passage. The fail passages are branched from the upstream of the switching valve of the pilot passage.

Abstract translation: 阻尼阀包括主阀，主阀和主阀通路，以及引导通道，通过节流阀将主通道的上游压力降低，作为使主阀向关闭方向偏压的背压。 压力控制阀设置在节流阀的下游，并且包括控制背压的安置部，并且包括打开和关闭引导通道的圆形凹陷部的切换阀由单个螺线管集成和控制。 阻尼阀包括从节气门的下游分支以绕过主阀的故障通道，以及打开和关闭故障通道的故障阀。 切换阀设置在先导通路中的压力控制阀的上游。 故障通道从先导通道的切换阀的上游分支。