JPS63133604U - - Google Patents
Info
- Publication number
- JPS63133604U JPS63133604U JP2659387U JP2659387U JPS63133604U JP S63133604 U JPS63133604 U JP S63133604U JP 2659387 U JP2659387 U JP 2659387U JP 2659387 U JP2659387 U JP 2659387U JP S63133604 U JPS63133604 U JP S63133604U
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- valve
- poppet
- control valve
- outlet
- 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
- 239000012530 fluid Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Fluid-Driven Valves (AREA)
Description
第１図は本考案のポペツト形流体制御弁を使用
した油圧回路図、第２図及び第３図は第１図に示
すポペツト形流体制御弁の作動状態をそれぞれ示
す説明図で弁は断面図で示されており、第４図は
従来のポペツト形流体制御弁を使用した油圧回路
図である。
１……ポペツト弁、１ａ，３ａ……パイロツト
室、１ｂ，３ｂ……スプリング、３……第２ポペ
ツト弁、７……第１流路、８……第２流路、１０
……ポペツト形流体制御弁、１１……制御弁入口
、１２……第１出口、１５，１６，１７……パイ
ロツト流路、１９……第２出口、２０……制御弁
、２１……貫通オリフイス、２２……スプール、
２３……スプリング。
Fig. 1 is a hydraulic circuit diagram using the poppet type fluid control valve of the present invention, and Figs. 2 and 3 are explanatory diagrams showing the operating states of the poppet type fluid control valve shown in Fig. 1, and the valve is a sectional view. FIG. 4 is a hydraulic circuit diagram using a conventional poppet type fluid control valve. 1...Poppet valve, 1a, 3a...Pilot chamber, 1b, 3b...Spring, 3...Second poppet valve, 7...First flow path, 8...Second flow path, 10
... Poppet type fluid control valve, 11 ... Control valve inlet, 12 ... First outlet, 15, 16, 17 ... Pilot channel, 19 ... Second outlet, 20 ... Control valve, 21 ... Penetration Orifice, 22...spool,
23...Spring.
Claims (1)
流路を開閉可能に配置された第１ポペツト弁と、
第２の流路を開閉可能に配置された第２ポペツト
弁と、各前記ポペツト弁を制御する各パイロツト
室にパイロツト圧油を制御弁を介して供給するパ
イロツト流路を含み、前記制御弁は貫通オリフイ
スを有する摺動可能なスプール、前記オリフイス
を介して制御弁入口と前記第１ポペツト弁パイロ
ツト室とを常時連通する第１出口、及びオリフイ
ス前後に差圧がないときスプリングに押圧された
スプールが開口してオリフイスを介して制御弁入
口と前記第２ポペツト弁パイロツト室とを連通す
る第２出口、を含み、前記オリフイス前後の圧力
損失がスプリングの力より大きいとき前記スプー
ルは前記第２出口を閉止するようにされたことを
特徴とするポペツト形流体制御弁。 a first poppet valve arranged to be able to open and close a first flow path from the pressure fluid supply side to the actuator;
It includes a second poppet valve arranged to be able to open and close the second flow path, and a pilot flow path that supplies pilot pressure oil to each pilot chamber that controls each of the poppet valves via a control valve, and the control valve is A slidable spool having a through orifice, a first outlet that constantly communicates the control valve inlet and the first poppet valve pilot chamber through the orifice, and a spool that is pressed by a spring when there is no differential pressure across the orifice. a second outlet that opens and communicates the control valve inlet with the second poppet valve pilot chamber through an orifice, and when the pressure loss across the orifice is greater than the spring force, the spool opens the second outlet. A poppet-type fluid control valve characterized in that the valve is configured to close the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2659387U JPH0625682Y2 (en) | 1987-02-25 | 1987-02-25 | Poppet type fluid control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2659387U JPH0625682Y2 (en) | 1987-02-25 | 1987-02-25 | Poppet type fluid control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63133604U true JPS63133604U (en) | 1988-09-01 |
| JPH0625682Y2 JPH0625682Y2 (en) | 1994-07-06 |
Family
ID=30827820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2659387U Expired - Lifetime JPH0625682Y2 (en) | 1987-02-25 | 1987-02-25 | Poppet type fluid control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625682Y2 (en) |
-
1987
- 1987-02-25 JP JP2659387U patent/JPH0625682Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0625682Y2 (en) | 1994-07-06 |