公开(公告)号：US20160377098A1

公开(公告)日：2016-12-29

申请号：US15125138

申请日：2015-02-13

Applicant: KYB Corporation

Inventor： Masayuki NAKAMURA ,  Syota MIZUKAMI

IPC: F15B13/04 ,  F15B13/02 ,  F16K15/02 ,  F16K27/04 ,  F16K11/07

CPC classification number: F15B13/0402 ,  F15B13/026 ,  F15B13/0417 ,  F15B2211/20546 ,  F15B2211/25 ,  F16K11/0716 ,  F16K15/021 ,  F16K27/041

Abstract: A valve structure includes a switching valve; and a compensator valve configured to maintain a flow dividing ratio determined by a switching amount of the switching valve to be constant irrespective of a load change of an actuator connected to the switching valve. An axis line of a main spool provided in the switching valve and an axis line of a compensator spool provided in the compensator valve are parallel to each other.

Abstract translation: 阀结构包括切换阀; 以及补偿阀，被配置为将切换阀的切换量确定的分流比保持为恒定，而与连接到切换阀的致动器的负载变化无关。 设置在切换阀中的主阀芯的轴线和设置在补偿阀中的补偿阀芯的轴线彼此平行。

公开(公告)号：US20200332907A1

公开(公告)日：2020-10-22

申请号：US16623014

申请日：2018-09-28

Applicant: KYB Corporation

Inventor： Masanari KOJIMA ,  Masayuki NAKAMURA ,  Takeshi TERAO

IPC: F16K11/07 ,  F15B13/04

Abstract: A fluid pressure control device includes a neutral passage, a control valve provided in the neutral passage, a first supply passage, and a discharge passage, the control valve has, a switching valve configured to control a flow of a working fluid to the discharge passage from the first actuator in accordance with a pressure in a pilot chamber to which a part of the working fluid supplied from the first supply passage to the first actuator is led, and a throttle portion configured to throttle the flow of the working fluid supplied to the first actuator from the first supply passage, and the pressure on an upstream side of the throttle portion is led to the pilot chamber.

公开(公告)号：US20200096121A1

公开(公告)日：2020-03-26

申请号：US16619323

申请日：2018-09-28

Applicant: KYB Corporation

Inventor： Masanari KOJIMA ,  Masayuki NAKAMURA ,  Takeshi TERAO

IPC: F16K11/07 ,  F15B13/042

Abstract: A control valve includes a housing formed with first and second supply ports, first and second actuator ports, and a pilot port, and a spool accommodated slidably in the housing, and the spool is configured to allow the first supply port and the pilot port to communicate with each other both at the first communication position and the second communication position.

公开(公告)号：US20160138620A1

公开(公告)日：2016-05-19

申请号：US14898161

申请日：2015-04-13

Applicant: KYB Corporation

Inventor： Takeshi TERAO ,  Masayuki NAKAMURA

IPC: F15B11/16 ,  F15B13/06 ,  F15B21/00 ,  F15B13/02

CPC classification number: F15B11/163 ,  F15B11/162 ,  F15B13/026 ,  F15B13/06 ,  F15B21/005 ,  F15B2211/20546 ,  F15B2211/253 ,  F15B2211/3054 ,  F15B2211/351 ,  F15B2211/40515 ,  F15B2211/40553 ,  F15B2211/50572 ,  F15B2211/5756 ,  F15B2211/71 ,  F15B2211/781

Abstract: A pump discharge amount is divided in accordance with switch amounts of respective switch valves (V1, V2) by leading load pressures of actuators (A1, A2) to which compensator valves (C1, C2) are connected to respective first pressure chambers (9, 10) of the compensator valves (C1, C2), leading a maximum load pressure selected by a selection unit (4) to respective second pressure chambers (11, 12) of the compensator valves (C1, C2), and controlling respective openings of the compensator valves (C1, C2) in accordance with respective pressure actions between the respective pressure chambers (9, 10, 11, 12). A drain passage (13) is provided to connect the first pressure chamber (10) of the compensator valve (C2) to a tank (T), and a flow dividing ratio modification valve (CV) is provided to control a pressure in the first pressure chamber (10).

Abstract translation: 泵排出量根据各个开关阀（V1，V2）的开关量通过将补偿阀（C1，C2）连接到各个第一压力室（9， 补偿阀（C1，C2）的第二压力室（C1，C2）的各个开口，将由选择单元（4）选择的最大负载压力引导到补偿阀（C1，C2）的各个第二压力室（11,12） 补偿阀（C1，C2）根据各个压力室（9,10,11,12）之间的各自的压力作用。 排水通道（13）设置成将补偿阀（C2）的第一压力室（10）与罐（T）连接起来，并设置有分流比变更阀（CV），以控制第一 压力室（10）。