JPS6451777U - - Google Patents
Info
- Publication number
- JPS6451777U JPS6451777U JP14545287U JP14545287U JPS6451777U JP S6451777 U JPS6451777 U JP S6451777U JP 14545287 U JP14545287 U JP 14545287U JP 14545287 U JP14545287 U JP 14545287U JP S6451777 U JPS6451777 U JP S6451777U
- Authority
- JP
- Japan
- Prior art keywords
- pump shaft
- pump
- cylinder
- discharge port
- port
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案の１実施例の側断面図、第２図
は同要部の拡大正断面図、第３図は同要部の他の
姿勢における拡大正断面図、第４図、第５図はそ
れぞれ他の実施例の要部の側断面図、正断面図、
第６図は従来例の側断面図、第７図は第６図の
―線の正断面図、第８図は他の姿勢における側
断面図、第９図は他の姿勢における要部の拡大正
断面図である。
１……シリンダー、３……ポンプ軸、１７……
ポンプ室、１９……吸入口、２１……吐出口、２
３……連通路、２６……開口部、２７……押圧装
置。
Fig. 1 is a side sectional view of one embodiment of the present invention, Fig. 2 is an enlarged front sectional view of the same main part, Fig. 3 is an enlarged front sectional view of the same main part in another posture, Fig. 4, Figure 5 is a side sectional view and a front sectional view of main parts of other embodiments, respectively.
Fig. 6 is a side sectional view of the conventional example, Fig. 7 is a front sectional view taken along the - line in Fig. 6, Fig. 8 is a side sectional view in another attitude, and Fig. 9 is an enlarged view of the main parts in another attitude. FIG. 1...Cylinder, 3...Pump shaft, 17...
Pump chamber, 19...Suction port, 21...Discharge port, 2
3... Communication path, 26... Opening, 27... Pressing device.
Claims (1)
に軸方向に１往復するポンプ軸３を設け、前記シ
リンダー１の端部に、前記ポンプ軸３の端面に対
面するポンプ室１７を形成するとともに、前記シ
リンダー１の内径部に吸入口１９と吐出口２１と
を相対して開口して設け、前記吸入口１９と前記
吐出口２１とを前記ポンプ軸３の外周面によつて
閉鎖して設けるとともに、前記ポンプ室１７に１
端を連通する連通路２３を前記ポンプ軸３に設け
、前記ポンプ軸３の回転にともなつて前記吸入口
１９と前記吐出口２１とに交互に連通する開口部
２６を前記連通路２３の他端に設けたオイルポン
プにおいて、前記ポンプ軸３を前記開口部２６と
反対側方向に押圧、付勢する押圧装置２７を設け
たことを特徴とする・オインポンプ。 A pump shaft 3 is provided which rotatably fits into the cylinder 1 and reciprocates in the axial direction once every rotation, and a pump chamber 17 facing the end surface of the pump shaft 3 is formed at the end of the cylinder 1. In addition, an inlet port 19 and a discharge port 21 are provided in the inner diameter portion of the cylinder 1 to face each other, and the inlet port 19 and the discharge port 21 are closed by the outer peripheral surface of the pump shaft 3. In addition, the pump chamber 17 has a
A communication passage 23 is provided in the pump shaft 3, and as the pump shaft 3 rotates, openings 26 are formed in the communication passage 23 and communicate with the suction port 19 and the discharge port 21 alternately. An oil pump provided at an end of the oil pump, characterized in that a pressing device 27 is provided for pressing and urging the pump shaft 3 in a direction opposite to the opening 26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987145452U JPH0526316Y2 (en) | 1987-09-25 | 1987-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987145452U JPH0526316Y2 (en) | 1987-09-25 | 1987-09-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6451777U true JPS6451777U (en) | 1989-03-30 |
| JPH0526316Y2 JPH0526316Y2 (en) | 1993-07-02 |
Family
ID=31414055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987145452U Expired - Lifetime JPH0526316Y2 (en) | 1987-09-25 | 1987-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526316Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5998725B2 (en) * | 2012-08-03 | 2016-09-28 | 日立工機株式会社 | Portable work machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137883U (en) * | 1982-03-12 | 1983-09-16 | 西原 義晃 | fluid discharge device |
-
1987
- 1987-09-25 JP JP1987145452U patent/JPH0526316Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137883U (en) * | 1982-03-12 | 1983-09-16 | 西原 義晃 | fluid discharge device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526316Y2 (en) | 1993-07-02 |