JPH0176580U - - Google Patents
Info
- Publication number
- JPH0176580U JPH0176580U JP1987171444U JP17144487U JPH0176580U JP H0176580 U JPH0176580 U JP H0176580U JP 1987171444 U JP1987171444 U JP 1987171444U JP 17144487 U JP17144487 U JP 17144487U JP H0176580 U JPH0176580 U JP H0176580U
- Authority
- JP
- Japan
- Prior art keywords
- teeth
- oil pump
- rotor
- edge
- pump casing
- 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
- 238000005192 partition Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
Landscapes
- Rotary Pumps (AREA)
Description
第１図はこの考案の実施例を示す第４図のＡ―
Ａ線方向からみた正面図、第２図は第１図のＢ―
Ｂ線断面図、第３図は第４図のＡ―Ａ線方向から
みた正面図、第４図はこの実施例のオイルポンプ
を断面して示す側面図、第５図は従来のオイルポ
ンプを示す正面図、第６図はこの従来のオイルポ
ンプの要部を示す拡大図、第７図は第６図のＣ―
Ｃ線断面図である。
１１……ポンプケーシング、１４……インナロ
ータ、１５……アウタロータ、１６……外歯、１
７……内歯、１８……密閉空間、１９……吸入口
、２０……吐出口、２１，２２……切欠面。
Figure 1 shows an embodiment of this invention.
Front view as seen from line A, Figure 2 is B- in Figure 1.
3 is a front view taken along line A--A in FIG. 4, FIG. 4 is a side view showing the oil pump of this embodiment in cross section, and FIG. 5 is a conventional oil pump. 6 is an enlarged view showing the main parts of this conventional oil pump, and FIG. 7 is a front view showing the main parts of this conventional oil pump.
It is a sectional view taken along line C. 11... Pump casing, 14... Inner rotor, 15... Outer rotor, 16... External tooth, 1
7... Internal teeth, 18... Sealed space, 19... Suction port, 20... Discharge port, 21, 22... Notch surface.
Claims (1)
シングの内部に、互いの内歯と外歯が噛み合うア
ウタロータとインナロータとを回転可能に収納し
、上記アウタロータとインナロータの回転に伴い
上記内外歯に形成される密閉空間の容積を変化さ
せてポンプ作用を行なうオイルポンプであつて、
上記内歯と外歯とのいずれか一方あるいは両方の
回転方向側の内端縁と、上記吸入口の後端部を仕
切る上記ポンプケーシングの端縁とのうち、少な
くともいずれか一方に切欠面を形成したことを特
徴とするオイルポンプ。 An outer rotor and an inner rotor whose internal and external teeth mesh with each other are rotatably housed inside a pump casing that has an inlet and an outlet on both sides, and as the outer rotor and inner rotor rotate, the inner and outer teeth engage with each other. An oil pump that performs a pumping action by changing the volume of a sealed space formed,
A cutout surface is formed on at least one of the inner edge of one or both of the internal teeth and external teeth on the rotational direction side, and the edge of the pump casing that partitions the rear end of the suction port. An oil pump characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171444U JPH0631191Y2 (en) | 1987-11-10 | 1987-11-10 | Oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171444U JPH0631191Y2 (en) | 1987-11-10 | 1987-11-10 | Oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0176580U true JPH0176580U (en) | 1989-05-24 |
| JPH0631191Y2 JPH0631191Y2 (en) | 1994-08-22 |
Family
ID=31463279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171444U Expired - Lifetime JPH0631191Y2 (en) | 1987-11-10 | 1987-11-10 | Oil pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631191Y2 (en) |
-
1987
- 1987-11-10 JP JP1987171444U patent/JPH0631191Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0631191Y2 (en) | 1994-08-22 |