JPS6399078U - - Google Patents
Info
- Publication number
- JPS6399078U JPS6399078U JP19547386U JP19547386U JPS6399078U JP S6399078 U JPS6399078 U JP S6399078U JP 19547386 U JP19547386 U JP 19547386U JP 19547386 U JP19547386 U JP 19547386U JP S6399078 U JPS6399078 U JP S6399078U
- Authority
- JP
- Japan
- Prior art keywords
- inflow port
- communication hole
- spool
- valve
- orifice
- 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
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
図面第１図はこの考案の実施例を示す断面図、
第２図はこの実施例の制御特性を示すグラフ、第
３図は従来例の使用態様を回路図とともに示した
断面図、第４図はこの従来例の制御特性を示すグ
ラフである。
ＶＰ…可変吐出ポンプ、ＮＶ…ニユートラルバ
ルブ、６…スプリング室、７…スプリング、１６
…バルブ本体、１８…流入ポート、１９…スプー
ル、２０…チエツク弁、２１…連通孔、２５…ド
レンポート、２６…絞りとしてのチヨーク。
Figure 1 is a sectional view showing an embodiment of this invention;
FIG. 2 is a graph showing the control characteristics of this embodiment, FIG. 3 is a sectional view showing how the conventional example is used together with a circuit diagram, and FIG. 4 is a graph showing the control characteristics of this conventional example. VP...variable discharge pump, NV...neutral valve, 6...spring chamber, 7...spring, 16
... Valve body, 18 ... Inflow port, 19 ... Spool, 20 ... Check valve, 21 ... Communication hole, 25 ... Drain port, 26 ... Check yoke as a throttle.
Claims (1)
ポンプに接続する一方、上記バルブ本体に内装し
たスプールの一端を上記流入ポート側に臨ませ、
他端をスプリング室に臨ませ、かつ、このスプー
ルに連通孔を形成し、スプールがノーマル位置に
あるとき、流入ポートとバルブ本体に形成したド
レンポートとを上記連通孔を介して連通させると
ともに、その流路過程にオリフイスを設け、その
オリフイス前後の差圧に応じて、スプールがスプ
リング室に設けたスプリングに抗して移動し、上
記流入ポートとドレンポートとの連通を遮断する
構成にしたニユートラルバルブにおいて、上記流
入ポートと連通孔との間に、流入ポートから連通
孔への流通のみを許容するチエツク弁を設けると
ともに、このチエツク弁の下流側を、オリフイス
あるいはチヨーク等の絞りを介してドレンポート
に連通させてなるニユートラルバルブ。 An inflow port formed in the valve body is connected to a variable discharge pump, while one end of a spool installed in the valve body faces the inflow port side,
The other end faces the spring chamber, and a communication hole is formed in the spool, and when the spool is in the normal position, the inflow port and the drain port formed in the valve body are communicated through the communication hole, An orifice is provided in the flow path, and the spool moves against the spring provided in the spring chamber according to the differential pressure before and after the orifice, thereby blocking communication between the inflow port and the drain port. In the tral valve, a check valve that only allows flow from the inflow port to the communication hole is provided between the inflow port and the communication hole, and the downstream side of the check valve is connected through a restriction such as an orifice or a choke. A neutral valve that communicates with the drain port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19547386U JPH045816Y2 (en) | 1986-12-19 | 1986-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19547386U JPH045816Y2 (en) | 1986-12-19 | 1986-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6399078U true JPS6399078U (en) | 1988-06-27 |
| JPH045816Y2 JPH045816Y2 (en) | 1992-02-18 |
Family
ID=31153393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19547386U Expired JPH045816Y2 (en) | 1986-12-19 | 1986-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045816Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017215004A (en) * | 2016-06-01 | 2017-12-07 | ナブテスコ株式会社 | Flow rate regulating valve and valve structure |
-
1986
- 1986-12-19 JP JP19547386U patent/JPH045816Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017215004A (en) * | 2016-06-01 | 2017-12-07 | ナブテスコ株式会社 | Flow rate regulating valve and valve structure |
| KR20170136427A (en) * | 2016-06-01 | 2017-12-11 | 나부테스코 가부시키가이샤 | Flow control valve and valve structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH045816Y2 (en) | 1992-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6399078U (en) | ||
| JPS6244305U (en) | ||
| JPS6040867U (en) | flow control valve | |
| JPS6095272U (en) | hydraulic control device | |
| JPS63147902U (en) | ||
| JPH023975U (en) | ||
| JPS6077869U (en) | switching valve | |
| JPS63164605U (en) | ||
| JPH0165404U (en) | ||
| JPS58177661U (en) | Diversion valve | |
| JPH03108889U (en) | ||
| JPS5816476U (en) | Pilot type switching valve | |
| JPS5992269U (en) | hydraulic control device | |
| JPS6443204U (en) | ||
| JPH0243768U (en) | ||
| JPS60106876U (en) | Hydraulic switching valve for steering | |
| JPH01166181U (en) | ||
| JPS5849065U (en) | directional valve | |
| JPS59163554U (en) | Brake hydraulic pressure control valve | |
| JPS6217815A (en) | Three-port type pressure reducing valve | |
| JPS61101103U (en) | ||
| JPH02150478U (en) | ||
| JPS58104467U (en) | counterbalance valve | |
| JPS63169281U (en) | ||
| JPH0349118U (en) |