JPH0387977U - - Google Patents
Info
- Publication number
- JPH0387977U JPH0387977U JP15137589U JP15137589U JPH0387977U JP H0387977 U JPH0387977 U JP H0387977U JP 15137589 U JP15137589 U JP 15137589U JP 15137589 U JP15137589 U JP 15137589U JP H0387977 U JPH0387977 U JP H0387977U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- hydraulic fluid
- actuator
- cooling device
- path
- 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
- 238000001816 cooling Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Details Of Reciprocating Pumps (AREA)
Description
第１図ａ〜ｂは本考案による液圧ポンプユニツ
ト装置の回路図、第２図ａ〜ｂは従来の液圧ポン
プユニツト装置の回路図である。
ＰＭ……ポンプモータ、Ｐ……液圧ポンプ、１
……液圧タンク、２……方向弁、Ａ……アクチユ
エータ循環路、３……往路、４……復路、５……
冷却装置 冷却装置を付勢・消勢する手段、ＳＶ
……ソレノイド弁、ＳＣ……ソレノイドコイル、
Ｃ３……電磁接点Ｍ。
1A to 1B are circuit diagrams of a hydraulic pump unit device according to the present invention, and FIGS. 2A to 2B are circuit diagrams of a conventional hydraulic pump unit device. PM...Pump motor, P...Hydraulic pump, 1
... Hydraulic pressure tank, 2 ... Directional valve, A ... Actuator circulation path, 3 ... Outbound path, 4 ... Return path, 5 ...
Cooling device Means for energizing/deenergizing the cooling device, SV
... Solenoid valve, SC ... Solenoid coil,
C3 ...Magnetic contact M.
Claims (1)
圧タンクからアクチユエータへ液圧流体を供給す
る往路と、前記アクチユエータから前記液圧タン
クへ前記液圧流体を帰流させる復路とからなる循
環路を備え、前記循環路上に前記液圧流体を冷却
する冷却装置を設けると共に、前記ポンプモータ
の起動・停止に連動して前記冷却装置を付勢・消
勢する手段を設けたことを特徴とする液圧ポンプ
ユニツト装置。 A circulation path consisting of an outgoing path for supplying hydraulic fluid from a hydraulic tank to an actuator by a hydraulic pump driven by a pump motor, and a return path for returning the hydraulic fluid from the actuator to the hydraulic tank, A hydraulic pump characterized in that a cooling device for cooling the hydraulic fluid is provided on the circulation path, and means for energizing and deenergizing the cooling device in conjunction with starting and stopping of the pump motor. unit equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15137589U JPH0387977U (en) | 1989-12-27 | 1989-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15137589U JPH0387977U (en) | 1989-12-27 | 1989-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0387977U true JPH0387977U (en) | 1991-09-09 |
Family
ID=31697677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15137589U Pending JPH0387977U (en) | 1989-12-27 | 1989-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0387977U (en) |
-
1989
- 1989-12-27 JP JP15137589U patent/JPH0387977U/ja active Pending
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