JPH048786U - - Google Patents
Info
- Publication number
- JPH048786U JPH048786U JP4909090U JP4909090U JPH048786U JP H048786 U JPH048786 U JP H048786U JP 4909090 U JP4909090 U JP 4909090U JP 4909090 U JP4909090 U JP 4909090U JP H048786 U JPH048786 U JP H048786U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- teeth
- oil pump
- jetty
- outer rotor
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
第１図は本考案によるオイルポンプの一実施例
を示す第２図の−断面図、第２図は第１図の
−断面図、第３図は同実施例のアウタロータ
の要部を示す斜視図、第４図ａ〜ｆは吸入行程に
おけるボリユウム室の変化を説明するロータの作
動状態を示す図である。
１１……ケーシング、１２……カバー、１４…
…インナロータ、１５……アウタロータ、１５ａ
……段差部、１６……外歯、１７……内歯、１８
……ボリユウム室、２０……吸入口、２２……吐
出口、２３……噛合い部、２４……閉じ込み部、
２５，２６……突堤。
1 is a cross-sectional view of FIG. 2 showing an embodiment of the oil pump according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a perspective view showing essential parts of the outer rotor of the same embodiment. Figures 4a to 4f are diagrams showing the operating state of the rotor to explain changes in the volume chamber during the suction stroke. 11...Casing, 12...Cover, 14...
...Inner rotor, 15...Outer rotor, 15a
...Stepped portion, 16... External teeth, 17... Internal teeth, 18
... Volume chamber, 20 ... Suction port, 22 ... Discharge port, 23 ... Engagement part, 24 ... Confinement part,
25, 26... Jetty.
Claims (1)
合するアウタロータとインナロータとを偏心状態
で回転可能に収容し、上記アウタロータとインナ
ロータの回転に伴ない上記内歯と外歯との間に形
成されるボリユウム室の容積を変化させて、吸入
および吐出作用を行なうオイルポンプにおいて、
上記アウタロータの一側面で、カバー側に面した
外周部には段付形状の段差部を形成し、上記アウ
タロータの段差部に嵌合する突堤をカバーの内面
に突設し、上記突堤を少なくともロータの閉じ込
み部に位置させたことを特徴とするオイルポンプ
。 An outer rotor and an inner rotor, whose inner teeth and outer teeth mesh with each other, are rotatably housed inside the casing in an eccentric state, and as the outer rotor and inner rotor rotate, a rotor is formed between the inner teeth and the outer teeth. In an oil pump that performs suction and discharge by changing the volume of the volume chamber,
On one side of the outer rotor, a stepped portion is formed on the outer peripheral portion facing the cover side, and a jetty that fits into the stepped portion of the outer rotor is provided protruding from the inner surface of the cover, and the jetty is connected to at least one part of the rotor. An oil pump characterized in that it is located in a confinement part of the oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909090U JPH048786U (en) | 1990-05-14 | 1990-05-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4909090U JPH048786U (en) | 1990-05-14 | 1990-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048786U true JPH048786U (en) | 1992-01-27 |
Family
ID=31566486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4909090U Pending JPH048786U (en) | 1990-05-14 | 1990-05-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048786U (en) |
-
1990
- 1990-05-14 JP JP4909090U patent/JPH048786U/ja active Pending