Title:
流量調整弁及び弁構造体
Document Type and Number:
Japanese Patent JP6773455
Kind Code:
B2
Abstract:
The invention provides a flow adjust valve and a valve structure, wherein the flow adjust valve works both as a flow control valve and a load-maintain check valve. The flow adjust valve comprises a mobile valve body that changes place position based on pressure of work oil of a first connection channel and a second connection channel; a first cylindrical part that can change an opening area of a second opening part where the work oil can pass by according to the place position of the mobile valve body; a mobile sealing part that changes the place position according to the work oil of the first connection channel and the second connection channel, and obstructs a guiding channel formed in the mobile valve body according to the place position. When the pressure of the work oil of the first connection channel higher than the pressure of the work oil of the second connection channel and gap between the pressure of the work oil of the first connection channel and the pressure of the work oil of the second connection channel is higher than a first pressure gap, the opening area of the second opening part of the first cylindrical part is reduced.
Inventors:
Hitoshi Iwasaki
Ryoma Shoya
Ryoma Shoya
Application Number:
JP2016110325A
Publication Date:
October 21, 2020
Filing Date:
June 01, 2016
Export Citation:
Assignee:
Nabtesco Co., Ltd.
International Classes:
F16K17/30; F15B11/00; F16K15/04
Domestic Patent References:
| JP63099078U | ||||
| JP58177661U | ||||
| JP2004293597A |
Foreign References:
| US6073652 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Murakoshi Taku
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Murakoshi Taku