JPH03122283U - - Google Patents
Info
- Publication number
- JPH03122283U JPH03122283U JP3145590U JP3145590U JPH03122283U JP H03122283 U JPH03122283 U JP H03122283U JP 3145590 U JP3145590 U JP 3145590U JP 3145590 U JP3145590 U JP 3145590U JP H03122283 U JPH03122283 U JP H03122283U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- inner rotor
- recess
- teeth
- 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
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Description
第１図は第２図の−線断面説明図、第２図
はこの考案の実施例を示す断面説明図、第３図は
第４図の−線断面説明図、第４図は従来のオ
イルポンプを示す断面説明図である。
１……アウターローター、２……インナーロー
ター、３……ケーシング、４……ケーシングカバ
ー、１２……内歯、２１……外歯、２３……凹所
、３２……突部、Ｐ……オイルポンプ。
Fig. 1 is an explanatory cross-sectional view taken along the - line in Fig. 2, Fig. 2 is an explanatory cross-sectional view showing an embodiment of this invention, Fig. 3 is an explanatory cross-sectional view taken along the - line in Fig. 4, and Fig. 4 is a conventional oil It is a cross-sectional explanatory view showing a pump. DESCRIPTION OF SYMBOLS 1... Outer rotor, 2... Inner rotor, 3... Casing, 4... Casing cover, 12... Internal teeth, 21... External teeth, 23... Recess, 32... Protrusion, P... oil pump.
Claims (1)
歯より少ない歯数の外歯が形成されたインナーロ
ーターと、これら一対のローターを収容するケー
シングと、上記一対のローターの外側面を覆うケ
ーシングカバーとを有し、上記インナーローター
は上記アウターローターに対して偏心した状態で
内接して噛合わされ、上記インナーローターの回
転によりオイルの吸込みおよび吐出が行われるよ
うに構成されたオイルポンプにおいて、上記イン
ナーローターにはケーシングとの相対向面に環状
の凹所が形成され、この凹所と相対向するケーシ
ングの部分には上記凹所の内面と互いに摺動可能
に内接する環状の突起が形成され、上記インナー
ローターは上記突起によつて回転可能に支持され
ていることを特徴とするオイルポンプ。 an outer rotor formed with internal teeth, an inner rotor formed with external teeth having a smaller number of teeth than the internal teeth, a casing that accommodates the pair of rotors, and a casing cover that covers the outer surface of the pair of rotors. In the oil pump, the inner rotor is configured to be inwardly engaged with the outer rotor in an eccentric state, and suction and discharge of oil is performed by rotation of the inner rotor. An annular recess is formed on a surface facing the casing, and an annular projection is formed in a portion of the casing facing the recess so as to be slidably inscribed with the inner surface of the recess. An oil pump characterized in that the inner rotor is rotatably supported by the projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3145590U JPH03122283U (en) | 1990-03-26 | 1990-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3145590U JPH03122283U (en) | 1990-03-26 | 1990-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122283U true JPH03122283U (en) | 1991-12-13 |
Family
ID=31534225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3145590U Pending JPH03122283U (en) | 1990-03-26 | 1990-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122283U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011058588A (en) * | 2009-09-11 | 2011-03-24 | Advics Co Ltd | Seal structure for oil pump |
| JP2018127918A (en) * | 2017-02-07 | 2018-08-16 | 株式会社ジェイテクト | Motor pump |
-
1990
- 1990-03-26 JP JP3145590U patent/JPH03122283U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011058588A (en) * | 2009-09-11 | 2011-03-24 | Advics Co Ltd | Seal structure for oil pump |
| JP2018127918A (en) * | 2017-02-07 | 2018-08-16 | 株式会社ジェイテクト | Motor pump |