JPS59184388U - internal gear pump - Google Patents
internal gear pumpInfo
- Publication number
- JPS59184388U JPS59184388U JP8006883U JP8006883U JPS59184388U JP S59184388 U JPS59184388 U JP S59184388U JP 8006883 U JP8006883 U JP 8006883U JP 8006883 U JP8006883 U JP 8006883U JP S59184388 U JPS59184388 U JP S59184388U
- Authority
- JP
- Japan
- Prior art keywords
- bypass passage
- side bypass
- flow rate
- rate adjustment
- discharge
- 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
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、インターナルギヤポンプカバーを取外した状
態の正面図、第２図は、従来のインターナルギヤポンプ
の縦断面図、第３．４図は、従来のインターナルギヤポ
ンプの流量調整弁部分の縦断面図であり、第３図は、流
量調整弁が閉じた状態の縦断面図、第４図は、流量調整
弁が開いた状態の縦断面図、第５．６図は、本考案の第
１実施例の要部を示す縦断面図であり、第５図は、流量
調整弁が閉じた状態の縦断面図、第６図は、流量調整弁
が開いた状態の縦断面図、第７図及び第８図は、本考案
の第２実施例の要部を示す第５図及び第６図と同様の図
である。
６・・・・・・吸入ポート、７・・・・・・吐出ポート
、１１・・・・・・流量調整弁、１２・・・・・・吸入
側バイパス通路、１３・・・・・・流量調整弁受容孔、
１３ａ・・・・・・周面、１３ｂ・・・・・・奥端面、
１４・・・・・・吐出側バイパス通路、１５・・・・・
・スプリング、１７・・・・・・環状溝。
第６図
第１図−Figure 1 is a front view with the internal gear pump cover removed, Figure 2 is a longitudinal sectional view of a conventional internal gear pump, and Figures 3.4 are of the flow rate adjustment valve part of a conventional internal gear pump. 3 is a longitudinal sectional view of the flow rate regulating valve in a closed state, FIG. 4 is a longitudinal sectional view of the flow regulating valve in an open state, and FIG. 5.6 is a longitudinal sectional view of the flow regulating valve of the present invention. FIG. 5 is a vertical cross-sectional view showing the main parts of the first embodiment, FIG. 5 is a vertical cross-sectional view with the flow rate adjustment valve closed, FIG. 7 and 8 are views similar to FIGS. 5 and 6 showing the main parts of the second embodiment of the present invention. 6... Suction port, 7... Discharge port, 11... Flow rate adjustment valve, 12... Suction side bypass passage, 13...... Flow rate adjustment valve receiving hole,
13a... peripheral surface, 13b... inner end surface,
14... Discharge side bypass passage, 15...
- Spring, 17... annular groove. Figure 6 Figure 1-
Claims (1)
し、吐出ポートに連らなる吐出側バイパス通路が奥端面
に開口する流量調整弁受容孔に、流量調整弁を摺動自在
に嵌装し、該流量調整弁をスプリングで前記流量調整弁
の奥端面側に押し付けることにより吸入側バイパス通路
と吐出側バイパス通路の間を塞ぎ、−吐出側バイパス通
路め吐出圧力が設定値以上になると該圧力により前記流
量調整弁がスプリングのばね力に抗して押し下げられて
前記吸入側バイパス通路と吐出側バイパス通路が連通し
て吐出ポート側のオイル等が吸入ポート側に戻されるよ
うになっているインターナルギヤポンプにおいて、前記
吸入側バイパス通路と流量調整弁との間には、前記吸入
側バイパス通路に連通ずる環状溝を設けたことを特徴と
するインターナルギヤポンプ。 ゛The flow rate adjustment valve is slidably fitted into the flow rate adjustment valve receiving hole in which the suction side bypass passage connected to the suction port opens on the peripheral surface, and the discharge side bypass passage connected to the discharge port opens on the rear end surface. Then, by pressing the flow rate adjustment valve against the rear end surface side of the flow rate adjustment valve with a spring, the space between the suction side bypass passage and the discharge side bypass passage is closed, and when the discharge pressure in the discharge side bypass passage exceeds a set value, the The flow rate adjustment valve is pushed down by the pressure against the spring force of the spring, and the suction side bypass passage and the discharge side bypass passage communicate with each other, so that oil, etc. on the discharge port side is returned to the suction port side. An internal gear pump characterized in that an annular groove communicating with the suction side bypass passage is provided between the suction side bypass passage and the flow rate regulating valve.゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8006883U JPS59184388U (en) | 1983-05-27 | 1983-05-27 | internal gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8006883U JPS59184388U (en) | 1983-05-27 | 1983-05-27 | internal gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59184388U true JPS59184388U (en) | 1984-12-07 |
Family
ID=30210059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8006883U Pending JPS59184388U (en) | 1983-05-27 | 1983-05-27 | internal gear pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59184388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004007966A1 (en) * | 2002-06-13 | 2004-01-22 | Toyoda Koki Kabushiki Kaisha | Oil pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4982545A (en) * | 1972-12-18 | 1974-08-08 | ||
| JPS501932A (en) * | 1973-04-23 | 1975-01-10 | ||
| JPS5120449A (en) * | 1974-08-12 | 1976-02-18 | Fujita Corp | Kozobutsuniokeru taishinkako |
| JPS5687661A (en) * | 1979-12-19 | 1981-07-16 | Hitachi Ltd | Metal article coating method |
-
1983
- 1983-05-27 JP JP8006883U patent/JPS59184388U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4982545A (en) * | 1972-12-18 | 1974-08-08 | ||
| JPS501932A (en) * | 1973-04-23 | 1975-01-10 | ||
| JPS5120449A (en) * | 1974-08-12 | 1976-02-18 | Fujita Corp | Kozobutsuniokeru taishinkako |
| JPS5687661A (en) * | 1979-12-19 | 1981-07-16 | Hitachi Ltd | Metal article coating method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004007966A1 (en) * | 2002-06-13 | 2004-01-22 | Toyoda Koki Kabushiki Kaisha | Oil pump |
| JPWO2004007966A1 (en) * | 2002-06-13 | 2005-11-10 | 豊田工機株式会社 | Oil pump |
| JP4519644B2 (en) * | 2002-06-13 | 2010-08-04 | 株式会社ジェイテクト | Oil pump |
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