JPH0442279U - - Google Patents
Info
- Publication number
- JPH0442279U JPH0442279U JP8475290U JP8475290U JPH0442279U JP H0442279 U JPH0442279 U JP H0442279U JP 8475290 U JP8475290 U JP 8475290U JP 8475290 U JP8475290 U JP 8475290U JP H0442279 U JPH0442279 U JP H0442279U
- Authority
- JP
- Japan
- Prior art keywords
- discharge port
- spool valve
- suction port
- short
- hydraulic pump
- 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
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第１図は、本考案実施例の油圧ポンプ１０の断
面図を示す。第２図は、第１図における要部拡大
断面図を示す。第３図は、第２図とは異なる状態
の第１図における要部拡大断面図を示す。第４図
は、従来技術の油圧ポンプ６０の要部拡大正面図
を示す。
１０……油圧ポンプ、１２……吸入ポート、１
３……吐出ポート、２０……流量制御弁、２３…
…スプール弁、３０……形状記憶合金製スプリン
グ（温度感応手段）、３１……ロツド。
FIG. 1 shows a sectional view of a hydraulic pump 10 according to an embodiment of the present invention. FIG. 2 shows an enlarged sectional view of the main part in FIG. 1. FIG. 3 shows an enlarged sectional view of a main part in FIG. 1 in a state different from that in FIG. 2. FIG. FIG. 4 shows an enlarged front view of main parts of a conventional hydraulic pump 60. 10...Hydraulic pump, 12...Suction port, 1
3...Discharge port, 20...Flow rate control valve, 23...
... Spool valve, 30 ... Shape memory alloy spring (temperature sensitive means), 31 ... Rod.
Claims (1)
吐出ポートとの間に配設される流量制御弁とを有
する油圧ポンプにおいて、 前記流量制御弁は、前記吸入ポートと前記吐出
ポートとの間を短絡・非短絡と制御するスプール
弁と、該スプール弁と接触・非接触とされるロツ
ドとを備え、 前記スプール弁は前記ロツドを介して温度感応
手段により、低油温時には前記吸入ポートと前記
吐出ポートとの間を短絡する方向に付勢されるこ
とを特徴とする油圧ポンプ。[Claims for Utility Model Registration] A hydraulic pump having a suction port, a discharge port, and a flow control valve disposed between the suction port and the discharge port, wherein the flow control valve is arranged between the suction port and the discharge port. The spool valve is equipped with a spool valve that controls short-circuiting and non-short-circuiting with the discharge port, and a rod that is in contact and non-contact with the spool valve, and the spool valve is controlled by a temperature sensitive means via the rod to maintain low oil temperature. A hydraulic pump characterized in that it is sometimes biased in a direction to short-circuit between the suction port and the discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8475290U JPH0442279U (en) | 1990-08-10 | 1990-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8475290U JPH0442279U (en) | 1990-08-10 | 1990-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0442279U true JPH0442279U (en) | 1992-04-09 |
Family
ID=31633438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8475290U Pending JPH0442279U (en) | 1990-08-10 | 1990-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016089633A (en) * | 2014-10-29 | 2016-05-23 | 大豊工業株式会社 | Flow control valve |
-
1990
- 1990-08-10 JP JP8475290U patent/JPH0442279U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016089633A (en) * | 2014-10-29 | 2016-05-23 | 大豊工業株式会社 | Flow control valve |
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