JPH01158803U - - Google Patents
Info
- Publication number
- JPH01158803U JPH01158803U JP5353988U JP5353988U JPH01158803U JP H01158803 U JPH01158803 U JP H01158803U JP 5353988 U JP5353988 U JP 5353988U JP 5353988 U JP5353988 U JP 5353988U JP H01158803 U JPH01158803 U JP H01158803U
- Authority
- JP
- Japan
- Prior art keywords
- poppet valve
- opening
- valve
- closing
- pilot
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第1図は本考案の第1実施例を示す断面図、第
1a図は同じくその一部拡大図、第2図は本考案
の第2実施例を示す断面図、第2a図は同じくそ
の部分的拡大図である。
1……メインバルブ、2……油圧パイロツト弁
、3……主スプール、5……縦穴、6……横穴、
8A,8B……ノンリーク弁、8a……筒状ケー
シング、8b……主流路開閉用のポペツト弁、8
c……スプリング、8e……パイロツト用ポペツ
ト弁、8f……ピストン、30,30′……端部
ステム、40a,40a′,40b,40b′…
…シリンダ通路、A,B……シリンダポート。
Fig. 1 is a sectional view showing the first embodiment of the present invention, Fig. 1a is a partially enlarged view thereof, Fig. 2 is a sectional view showing the second embodiment of the invention, and Fig. 2a is the same part thereof. This is an enlarged view. 1...Main valve, 2...Hydraulic pilot valve, 3...Main spool, 5...Vertical hole, 6...Horizontal hole,
8A, 8B... Non-leak valve, 8a... Cylindrical casing, 8b... Poppet valve for opening/closing main flow path, 8
c... Spring, 8e... Pilot poppet valve, 8f... Piston, 30, 30'... End stem, 40a, 40a', 40b, 40b'...
...Cylinder passage, A, B...Cylinder port.
Claims (1)
を切換える形式の弁装置において、先端に絞りを
有する主流路開閉用のポペツト弁と、これを常時
閉じ側に付勢するスプリングと、このポペツト弁
のばね室の圧力を制御するパイロツト用ポペツト
弁と、該パイロツト用ポペツト弁を開閉するピス
トンを備えたノンリーク弁を、主流路開閉用のポ
ペツト弁がシリンダポートに到る通路と交差する
ように取付け、かつ、主スプールの切欠き構成が
パイロツト油圧を主スプールに加えたときに同時
にそのパイロツト油圧が主スプール端近傍のノン
リーク弁のピストンに作用し、主流路開閉用のポ
ペツト弁を開弁するようになつていることを特徴
とする油圧制御装置。 A valve device that operates the main spool with pilot oil pressure to switch the oil path includes a poppet valve with a throttle at the tip for opening and closing the main flow path, a spring that always biases the poppet valve toward the closed side, and a spring for the poppet valve. A pilot poppet valve for controlling the chamber pressure and a non-leak valve equipped with a piston for opening and closing the pilot poppet valve are installed so that the poppet valve for opening and closing the main flow path intersects with the passage leading to the cylinder port, and When the notch structure of the main spool applies pilot oil pressure to the main spool, the pilot oil pressure simultaneously acts on the piston of the non-leak valve near the end of the main spool, opening the poppet valve for opening and closing the main flow path. A hydraulic control device characterized by:
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988053539U JPH0747604Y2 (en) | 1988-04-22 | 1988-04-22 | Hydraulic control device |
US07/341,357 US4958553A (en) | 1988-04-22 | 1989-04-20 | Hydraulic controller |
DE19893913460 DE3913460C2 (en) | 1988-04-22 | 1989-04-24 | Hydraulic reversing valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988053539U JPH0747604Y2 (en) | 1988-04-22 | 1988-04-22 | Hydraulic control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01158803U true JPH01158803U (en) | 1989-11-02 |
JPH0747604Y2 JPH0747604Y2 (en) | 1995-11-01 |
Family
ID=31279511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988053539U Expired - Lifetime JPH0747604Y2 (en) | 1988-04-22 | 1988-04-22 | Hydraulic control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0747604Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011526347A (en) * | 2008-07-04 | 2011-10-06 | ハイダック フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Hydraulic valve device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5410869A (en) * | 1977-06-27 | 1979-01-26 | Kobe Steel Ltd | Locking valve gear for oil hydraulic actuator |
JPS54140067A (en) * | 1978-04-19 | 1979-10-30 | Caterpillar Tractor Co | Check valveecombined flow control valve for hydraulic system |
JPS6182105U (en) * | 1984-11-05 | 1986-05-31 |
-
1988
- 1988-04-22 JP JP1988053539U patent/JPH0747604Y2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5410869A (en) * | 1977-06-27 | 1979-01-26 | Kobe Steel Ltd | Locking valve gear for oil hydraulic actuator |
JPS54140067A (en) * | 1978-04-19 | 1979-10-30 | Caterpillar Tractor Co | Check valveecombined flow control valve for hydraulic system |
JPS6182105U (en) * | 1984-11-05 | 1986-05-31 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011526347A (en) * | 2008-07-04 | 2011-10-06 | ハイダック フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Hydraulic valve device |
Also Published As
Publication number | Publication date |
---|---|
JPH0747604Y2 (en) | 1995-11-01 |