JPS6180855U - - Google Patents
Info
- Publication number
- JPS6180855U JPS6180855U JP16378184U JP16378184U JPS6180855U JP S6180855 U JPS6180855 U JP S6180855U JP 16378184 U JP16378184 U JP 16378184U JP 16378184 U JP16378184 U JP 16378184U JP S6180855 U JPS6180855 U JP S6180855U
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- pumps
- work
- work machine
- 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.)
- Pending
Links
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図は作用を示す線図、第３図は他の実施例を示
す回路図、第４図イ，ロは従来の説明図である。
１，２，３は固定ポンプ、４はエンジン、５は
切換え弁、６は作業機操作弁、７は作業機シリン
ダ。
Fig. 1 is a circuit diagram showing one embodiment of this invention, Fig. 2 is a line diagram showing the operation, Fig. 3 is a circuit diagram showing another embodiment, and Fig. 4 A and B are conventional explanatory diagrams. be. 1, 2, and 3 are fixed pumps, 4 is an engine, 5 is a switching valve, 6 is a work machine operation valve, and 7 is a work machine cylinder.
Claims (1)
作業機操作弁６を介して作業機シリンダへ供給す
るものにおいて、上記固定ポンプを複数基の固定
ポンプ１，２，３より構成すると共に、これら固
定ポンプ１，２，３と作業機操作弁の間に、作業
内容に応じて上記各固定ポンプ１，２，３の吐出
圧を合流させる切換弁５を設けてなる建設機械の
作業機油圧回路。 In a device that supplies the discharge pressure of a pump driven by an engine 4 to a work machine cylinder via a work machine operation valve 6, the fixed pump is composed of a plurality of fixed pumps 1, 2, and 3, and these fixed pumps are 1, 2, 3 and a work equipment operating valve, a switching valve 5 is provided to combine the discharge pressures of the fixed pumps 1, 2, 3 according to the work content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16378184U JPS6180855U (en) | 1984-10-31 | 1984-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16378184U JPS6180855U (en) | 1984-10-31 | 1984-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6180855U true JPS6180855U (en) | 1986-05-29 |
Family
ID=30721644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16378184U Pending JPS6180855U (en) | 1984-10-31 | 1984-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6180855U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586907A (en) * | 1978-12-22 | 1980-07-01 | Japan Steel Works Ltd:The | Three-pump hydraulic circuit for construction machinery or the like |
-
1984
- 1984-10-31 JP JP16378184U patent/JPS6180855U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586907A (en) * | 1978-12-22 | 1980-07-01 | Japan Steel Works Ltd:The | Three-pump hydraulic circuit for construction machinery or the like |
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