JPH0449672U - - Google Patents
Info
- Publication number
- JPH0449672U JPH0449672U JP8999090U JP8999090U JPH0449672U JP H0449672 U JPH0449672 U JP H0449672U JP 8999090 U JP8999090 U JP 8999090U JP 8999090 U JP8999090 U JP 8999090U JP H0449672 U JPH0449672 U JP H0449672U
- Authority
- JP
- Japan
- Prior art keywords
- pump shaft
- pump
- cylinder
- communication passage
- discharge 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.)
- Pending
Links
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
は第１図の−線の正断面図、第３図は他の姿
勢における側断面図、第４図は要部側断面、第５
図は同正面図、第６図は第４図の−線の正断
面図、第７図は従来例の側断面図、第８図は第７
図の−線の正断面図である。
１……シリンダー、３……ポンプ軸、５……ウ
オームギヤ、９……ウオームねじ、１７……ポン
プ室、１９……吸入口、２１……吐出口、２３…
…連通路。
Fig. 1 is a side sectional view of one embodiment of the present invention, Fig. 2 is a front sectional view taken along the - line in Fig. 1, Fig. 3 is a side sectional view in another posture, and Fig. 4 is a side sectional view of the main part. , 5th
6 is a front sectional view taken along the - line in FIG. 4, FIG. 7 is a side sectional view of the conventional example, and FIG.
It is a front sectional view taken along the - line in the figure. 1... Cylinder, 3... Pump shaft, 5... Worm gear, 9... Worm screw, 17... Pump chamber, 19... Suction port, 21... Discharge port, 23...
...Connection path.
Claims (1)
に軸方向に１往復運動する合成樹脂製のポンプ軸
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
ンプ軸３に、前記ポンプ室１７に１端を連通する
連通路２３を設け、前記ポンプ軸３の回転にとも
なつて前記連通路２３を前記吸入口１９と前記吐
出口２１とに交互に連通して設けたオイルポンプ
において、駆動用のウオームねじ９に噛み合う金
属製のウオームギヤ５を前記ポンプ軸３に一体的
に固着して設けたことを特徴とするオイルポンプ
。 A pump shaft 3 made of synthetic resin is provided which rotatably fits into the cylinder 1 and makes one reciprocating motion in the axial direction for each rotation, and a pump chamber 17 is provided at the end of the cylinder 1 for the end surface of the pump shaft 3. At the same time, an inlet 19 is formed in the inner diameter part of the cylinder 1.
The suction port 19 and the discharge port 21 are provided so as to be closed by the outer peripheral surface of the pump shaft 3, and the pump shaft 3 is provided with the pump chamber 17 is provided with a communication passage 23 communicating with one end thereof, and as the pump shaft 3 rotates, the communication passage 23 is provided to alternately communicate with the suction port 19 and the discharge port 21, An oil pump characterized in that a metal worm gear 5 that meshes with a driving worm screw 9 is integrally fixed to the pump shaft 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8999090U JPH0449672U (en) | 1990-08-30 | 1990-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8999090U JPH0449672U (en) | 1990-08-30 | 1990-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0449672U true JPH0449672U (en) | 1992-04-27 |
Family
ID=31824370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8999090U Pending JPH0449672U (en) | 1990-08-30 | 1990-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449672U (en) |
-
1990
- 1990-08-30 JP JP8999090U patent/JPH0449672U/ja active Pending