JPH0264774U - - Google Patents
Info
- Publication number
- JPH0264774U JPH0264774U JP14446688U JP14446688U JPH0264774U JP H0264774 U JPH0264774 U JP H0264774U JP 14446688 U JP14446688 U JP 14446688U JP 14446688 U JP14446688 U JP 14446688U JP H0264774 U JPH0264774 U JP H0264774U
- Authority
- JP
- Japan
- Prior art keywords
- arcuate edge
- discharge port
- radius
- suction port
- 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.)
- Granted
Links
Landscapes
- Rotary Pumps (AREA)
Description
図面は本発明の実施例を示すものであつて、そ
の第１図は第２図―矢視のポンプボデイーの
正面図、第２図は本考案の横断面図、第３図は第
１図―矢視断面図、第４図は第１図に使用し
たポンプボデイーの斜視図、第５図はポンプボデ
イーの別の実施例の一部正面図、第６図は本考案
の別の実施例の横断面図、第７図は第６図に使用
したポンプカバーの斜視図、第８図は従来のポン
プボデイー又はポンプカバーの正面図、第９図は
第８図―矢視断面図、第１０図は第８図―
矢視断面図、第１１図は第８図―矢視
断面図である。
１…ポンプボデイー、２…ポンプカバー、４…
アウターロータ、５…インナーロータ、６…吸入
ポート、６ａ，７ａ…外周円弧状縁、６ｂ，７ｂ
…内周円弧状縁、７…吐出ポート、ｒ０１，ｒ０
２，ｒ１，ｒ２…半径、Ｏ１，Ｏ２…半径中心。
The drawings show an embodiment of the present invention, in which Figure 1 is a front view of the pump body in the direction of the arrows in Figure 2, Figure 2 is a cross-sectional view of the invention, and Figure 3 is the same as Figure 1. -A cross-sectional view taken in the direction of the arrows, Fig. 4 is a perspective view of the pump body used in Fig. 1, Fig. 5 is a partial front view of another embodiment of the pump body, and Fig. 6 is another embodiment of the present invention. , FIG. 7 is a perspective view of the pump cover used in FIG. 6, FIG. 8 is a front view of the conventional pump body or pump cover, FIG. Figure 10 is Figure 8.
FIG. 11 is a cross-sectional view taken in the direction of arrows in FIG. 8. 1...Pump body, 2...Pump cover, 4...
Outer rotor, 5... Inner rotor, 6... Suction port, 6a, 7a... Outer circumferential arcuate edge, 6b, 7b
... Inner circumferential arcuate edge, 7... Discharge port, r 01 , r 0
2 , r 1 , r 2 ... radius, O 1 , O 2 ... radius center.
Claims (1)
イー又はポンプカバーにおいて、その吸入ポート
、吐出ポートの外周円弧状縁の半径をアウターロ
ータの歯底円径と同等に形成し、且つ吸入ポート
、吐出ポートの内周円弧状縁の半径をインナーロ
ータの歯底円径と同等に形成し、さらに、その外
周円弧状縁及び内周円弧状縁のそれぞれの半径の
中心をアウターロータの半径中心とインナーロー
タの半径中心との間に存在させ、吸入ポート、吐
出ポートの深さを略均一としたことを特徴とした
トロコイド型オイルポンプ。 In a pump body or pump cover having a suction port and a discharge port, the radius of the outer circumferential arcuate edge of the suction port and discharge port is formed to be equal to the root diameter of the outer rotor, and the inner circumference of the suction port and discharge port is The radius of the arcuate edge is formed to be equal to the root diameter of the inner rotor, and the centers of the respective radii of the outer circumferential arcuate edge and the inner circumferential arcuate edge are the radius center of the outer rotor and the radius center of the inner rotor. A trochoid type oil pump characterized by having a suction port and a discharge port of approximately uniform depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988144466U JPH0622147Y2 (en) | 1988-11-07 | 1988-11-07 | Trochoid type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988144466U JPH0622147Y2 (en) | 1988-11-07 | 1988-11-07 | Trochoid type oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0264774U true JPH0264774U (en) | 1990-05-15 |
| JPH0622147Y2 JPH0622147Y2 (en) | 1994-06-08 |
Family
ID=31412208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988144466U Expired - Lifetime JPH0622147Y2 (en) | 1988-11-07 | 1988-11-07 | Trochoid type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622147Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014066181A (en) * | 2012-09-26 | 2014-04-17 | Hitachi Automotive Systems Ltd | Oil pump |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9810223B2 (en) | 2012-09-20 | 2017-11-07 | Asmo Co., Ltd. | Electric pump |
| JP2014062482A (en) * | 2012-09-20 | 2014-04-10 | Asmo Co Ltd | Electric pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6143288A (en) * | 1984-08-08 | 1986-03-01 | Aisin Seiki Co Ltd | Internal gear pump |
-
1988
- 1988-11-07 JP JP1988144466U patent/JPH0622147Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6143288A (en) * | 1984-08-08 | 1986-03-01 | Aisin Seiki Co Ltd | Internal gear pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014066181A (en) * | 2012-09-26 | 2014-04-17 | Hitachi Automotive Systems Ltd | Oil pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622147Y2 (en) | 1994-06-08 |