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.