JPWO2020161862A1 - 圧力制御弁 - Google Patents
圧力制御弁 Download PDFInfo
- Publication number
- JPWO2020161862A1 JPWO2020161862A1 JP2020570293A JP2020570293A JPWO2020161862A1 JP WO2020161862 A1 JPWO2020161862 A1 JP WO2020161862A1 JP 2020570293 A JP2020570293 A JP 2020570293A JP 2020570293 A JP2020570293 A JP 2020570293A JP WO2020161862 A1 JPWO2020161862 A1 JP WO2020161862A1
- Authority
- JP
- Japan
- Prior art keywords
- relief valve
- seat member
- pilot relief
- balance piston
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
2 スプリング
3 シート部材
5 キャップ部材
5a オリフィス
8 バランスピストン
8c オリフィス
9 スプリング
10 スリーブ
11 中間室
12 ダンピング室
20 高圧ライン
30 低圧ライン
100 ハウジング
Claims (1)
- バランスピストン型の圧力制御弁において、
高圧ラインに連通するオリフィスが形成され、内部に中間室を有するバランスピストンと、
前記バランスピストンと当接する弁座を備え、前記バランスピストンをスライド可能に収納するスリーブと、
前記バランスピストンにおけるオリフィスから前記中間室への作動液の流入を制御するためのパイロットリリーフ弁と、
前記パイロットリリーフ弁と当接する弁座を備えるシート部材と、
前記パイロットリリーフ弁および前記シート部材との間にダンピング室を形成するとともに、前記中間室と前記ダンピング室とを連通するオリフィスが形成され、前記シート部材と当接する位置と前記シート部材から離隔する位置との間を移動可能なキャップ部材と、
を備えたことを特徴とする圧力制御弁。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2019/004438 WO2020161862A1 (ja) | 2019-02-07 | 2019-02-07 | 圧力制御弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020161862A1 true JPWO2020161862A1 (ja) | 2021-10-07 |
JP7078140B2 JP7078140B2 (ja) | 2022-05-31 |
Family
ID=71947709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020570293A Active JP7078140B2 (ja) | 2019-02-07 | 2019-02-07 | 圧力制御弁 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP7078140B2 (ja) |
WO (1) | WO2020161862A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62167977U (ja) * | 1986-04-14 | 1987-10-24 | ||
JP2005240993A (ja) * | 2004-02-25 | 2005-09-08 | Volvo Construction Equipment Holding Sweden Ab | パイロット作動型リリーフバルブ |
JP2008045746A (ja) * | 2006-08-16 | 2008-02-28 | Volvo Construction Equipment Ab | 圧力制御弁 |
US20160326721A1 (en) * | 2013-12-26 | 2016-11-10 | Doosan Infracore Co., Ltd. | Pressure peak reduction valve for excavator and pressure peak reduction system for excavator comprising same |
WO2017046955A1 (ja) * | 2015-09-18 | 2017-03-23 | 株式会社 島津製作所 | 圧力制御弁 |
JP2017067095A (ja) * | 2015-09-28 | 2017-04-06 | ナブテスコ株式会社 | リリーフ弁 |
-
2019
- 2019-02-07 WO PCT/JP2019/004438 patent/WO2020161862A1/ja active Application Filing
- 2019-02-07 JP JP2020570293A patent/JP7078140B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62167977U (ja) * | 1986-04-14 | 1987-10-24 | ||
JP2005240993A (ja) * | 2004-02-25 | 2005-09-08 | Volvo Construction Equipment Holding Sweden Ab | パイロット作動型リリーフバルブ |
JP2008045746A (ja) * | 2006-08-16 | 2008-02-28 | Volvo Construction Equipment Ab | 圧力制御弁 |
US20160326721A1 (en) * | 2013-12-26 | 2016-11-10 | Doosan Infracore Co., Ltd. | Pressure peak reduction valve for excavator and pressure peak reduction system for excavator comprising same |
WO2017046955A1 (ja) * | 2015-09-18 | 2017-03-23 | 株式会社 島津製作所 | 圧力制御弁 |
JP2017067095A (ja) * | 2015-09-28 | 2017-04-06 | ナブテスコ株式会社 | リリーフ弁 |
Also Published As
Publication number | Publication date |
---|---|
JP7078140B2 (ja) | 2022-05-31 |
WO2020161862A1 (ja) | 2020-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5539986B2 (ja) | 調整可能な緩衝弁 | |
JP5952760B2 (ja) | 減衰弁 | |
JP5592641B2 (ja) | 電気油圧ポペットパイロット弁によって操作されるポペット弁 | |
JP5461986B2 (ja) | 双方向力フィードバックポペット弁 | |
CN106812857B (zh) | 具有阻尼阀的能调节的阻尼阀装置 | |
JP5952762B2 (ja) | 減衰弁 | |
JP6114667B2 (ja) | 減衰弁 | |
JP5369400B2 (ja) | 流量制御弁 | |
JP5966094B2 (ja) | ソレノイドバルブ | |
JP2016516957A (ja) | バルブ装置 | |
JP7078140B2 (ja) | 圧力制御弁 | |
JP4842716B2 (ja) | パイロットチェック弁及びこれを備えた流体圧回路 | |
JP6059548B2 (ja) | ソレノイドバルブ | |
JP2005307972A (ja) | 流体用レギュレータ | |
JP2012215186A (ja) | ソレノイドバルブ | |
JP6059549B2 (ja) | ソレノイドバルブ | |
JP4998375B2 (ja) | 優先弁 | |
JP4199644B2 (ja) | ノッチによる流体力を低減する構造のスプール弁 | |
US6957660B2 (en) | Pressure relief valve with bidirectional damping | |
US11339807B2 (en) | Priority flow control valve | |
JP6068203B2 (ja) | 圧力制御弁 | |
JP2013173438A (ja) | レベリングバルブ | |
US10378665B2 (en) | Pressure control valve | |
JP2007092774A (ja) | ロードセンシング制御装置 | |
JP4817964B2 (ja) | プライオリティバルブ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210315 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211214 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220118 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220222 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220405 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20220419 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220502 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 7078140 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |