JPH0422555U - - Google Patents
Info
- Publication number
- JPH0422555U JPH0422555U JP6397290U JP6397290U JPH0422555U JP H0422555 U JPH0422555 U JP H0422555U JP 6397290 U JP6397290 U JP 6397290U JP 6397290 U JP6397290 U JP 6397290U JP H0422555 U JPH0422555 U JP H0422555U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pump
- valve body
- passage
- signal auxiliary
- 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.)
- Pending
Links
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図、第２図は本考案の第１・第２実施例を
示す線図的構成説明図である。
１は主弁本体、２は第１ポンプ通路、３は第２
ポンプ通路、５は操作弁、６はスプール、７はセ
ンタバイパス弁、８は中立信号用補助弁、１０は
パラレス通路、１１は操作弁、１２はスプール、
１４，１６は第１・第２サービス弁、１８は中立
信号用操作弁、１９は弁本体。
1 and 2 are diagrammatic structural explanatory diagrams showing first and second embodiments of the present invention. 1 is the main valve body, 2 is the first pump passage, 3 is the second
Pump passage, 5 is an operation valve, 6 is a spool, 7 is a center bypass valve, 8 is an auxiliary valve for neutral signal, 10 is a parallel passage, 11 is an operation valve, 12 is a spool,
14 and 16 are first and second service valves, 18 is a neutral signal operation valve, and 19 is a valve body.
Claims (1)
に操作弁５のスプール６を設け、下流側にセンタ
バイパス弁７と中立信号用補助弁８を設けると共
に、その第１ポンプ通路２の上流側に接続したパ
ラレル通路１０を設け、 前記主弁本体１の第２ポンプ通路３に操作弁１
１のスプール１２を設け、 前記第１・第２ポンプ通路２，３に第１・第２
可変油圧ポンプＰ１，Ｐ２の吐出側をそれぞれ接
続し、 前記主弁本体１にサービス弁の弁本体を連結し
、その弁本体に中立信号用補助弁１８の弁本体１
９を連結し、該中立信号用補助弁１８及び前記中
立信号用補助弁８の中立信号によつて第１可変油
圧ポンプＰ１及び第２可変油圧ポンプＰ２の容量
をそれぞれコントロールするように構成し、 前記サービス弁の弁本体に前述のパラレル通路
１０と第２ポンプ通路３をポンプポートに接続す
る通路を形成したことを特徴とする操作弁装置。[Claims for Utility Model Registration] The spool 6 of the operating valve 5 is provided on the upstream side of the first pump passage 2 of the main valve body 1, and the center bypass valve 7 and the neutral signal auxiliary valve 8 are provided on the downstream side. A parallel passage 10 connected to the upstream side of the first pump passage 2 is provided, and the operating valve 1 is connected to the second pump passage 3 of the main valve body 1.
1 spool 12 is provided, and the first and second spools are provided in the first and second pump passages 2 and 3.
The discharge sides of the variable hydraulic pumps P 1 and P 2 are connected respectively, the valve body of the service valve is connected to the main valve body 1, and the valve body 1 of the neutral signal auxiliary valve 18 is connected to the valve body.
9 are connected to each other, and the capacities of the first variable hydraulic pump P1 and the second variable hydraulic pump P2 are controlled by the neutral signals of the neutral signal auxiliary valve 18 and the neutral signal auxiliary valve 8, respectively. An operating valve device characterized in that a passage connecting the parallel passage 10 and the second pump passage 3 to a pump port is formed in the valve body of the service valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6397290U JPH0422555U (en) | 1990-06-19 | 1990-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6397290U JPH0422555U (en) | 1990-06-19 | 1990-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0422555U true JPH0422555U (en) | 1992-02-25 |
Family
ID=31594499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6397290U Pending JPH0422555U (en) | 1990-06-19 | 1990-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422555U (en) |
-
1990
- 1990-06-19 JP JP6397290U patent/JPH0422555U/ja active Pending
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