JPH0457686U - - Google Patents
Info
- Publication number
- JPH0457686U JPH0457686U JP9923690U JP9923690U JPH0457686U JP H0457686 U JPH0457686 U JP H0457686U JP 9923690 U JP9923690 U JP 9923690U JP 9923690 U JP9923690 U JP 9923690U JP H0457686 U JPH0457686 U JP H0457686U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- cover member
- annular
- pump
- end surface
- 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
図面は本考案の実施例を示すもので、第１図は
自動変速機の要部切欠き正面図、第２図はオイル
ポンプの分解斜視図、第３図はカバー部材を取り
除いた状態におけるオイルポンプの側面図、第４
図はオイルポンプの縦断面図である。
２……オイルポンプ、４……ハウジング、４ａ
……内周壁部、５……カバー部材、８……内歯歯
車、１０……外歯歯車、１８……環状溝、１９…
…環状部材、２０……環状〓間。
The drawings show an embodiment of the present invention. Fig. 1 is a cutaway front view of the main parts of an automatic transmission, Fig. 2 is an exploded perspective view of the oil pump, and Fig. 3 shows the oil with the cover member removed. Pump side view, 4th
The figure is a longitudinal sectional view of the oil pump. 2...Oil pump, 4...Housing, 4a
...Inner peripheral wall portion, 5...Cover member, 8...Internal gear, 10...External gear, 18...Annular groove, 19...
...Annular member, 20...Annular space.
Claims (1)
ロータと、ハウジングに締結されたカバー部材と
を備えたポンプにおいて、 上記ハウジング及びカバー部材が軽合金で構成
され、ロータは鉄系金属で構成され、 上記ロータの外周面に対向するハウジングの内
周壁部の外側にはカバー部材側へ開口する環状溝
が形成され、 上記環状溝内には内周壁部の半径方向への熱膨
張を抑制する環状部材が装着されていることを特
徴とするポンプ構造。 (2) 上記環状溝の奥端面と環状溝に対向するカ
バー部材の端面との少なくとも一方と環状部材の
端面間に環状〓間が形成されていることを特徴と
する第１請求項に記載のポンプ構造。[Claims for Utility Model Registration] (1) A pump comprising a housing, a rotor housed in the housing, and a cover member fastened to the housing, wherein the housing and cover member are made of a light alloy, and the rotor is made of ferrous metal, and an annular groove opening toward the cover member is formed on the outside of the inner circumferential wall of the housing that faces the outer circumferential surface of the rotor. A pump structure characterized by being equipped with an annular member that suppresses thermal expansion of the pump. (2) An annular gap is formed between at least one of the inner end surface of the annular groove and the end surface of the cover member facing the annular groove, and the end surface of the annular member. pump structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990099236U JP2538505Y2 (en) | 1990-09-20 | 1990-09-20 | Pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990099236U JP2538505Y2 (en) | 1990-09-20 | 1990-09-20 | Pump structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0457686U true JPH0457686U (en) | 1992-05-18 |
| JP2538505Y2 JP2538505Y2 (en) | 1997-06-18 |
Family
ID=31841021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990099236U Expired - Fee Related JP2538505Y2 (en) | 1990-09-20 | 1990-09-20 | Pump structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538505Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5126504U (en) * | 1974-08-20 | 1976-02-26 | ||
| JPS57136801U (en) * | 1981-02-20 | 1982-08-26 |
-
1990
- 1990-09-20 JP JP1990099236U patent/JP2538505Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5126504U (en) * | 1974-08-20 | 1976-02-26 | ||
| JPS57136801U (en) * | 1981-02-20 | 1982-08-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538505Y2 (en) | 1997-06-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |