JPH0365892U - - Google Patents
Info
- Publication number
- JPH0365892U JPH0365892U JP12844589U JP12844589U JPH0365892U JP H0365892 U JPH0365892 U JP H0365892U JP 12844589 U JP12844589 U JP 12844589U JP 12844589 U JP12844589 U JP 12844589U JP H0365892 U JPH0365892 U JP H0365892U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- housing
- water pump
- bearing
- sealing means
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は、本考案実施例のウオーターポンプ１
０の断面図を示す。第２図は、第１図における要
部拡大断面図を示す。第３図は、本考案第２実施
例のウオーターポンプ５０の断面図を示す。
１０，５０……ウオーターポンプ、１１……シ
ヤフト、１２……ハウジング、１３……ベアリン
グ、１５……インペラ、１６……メカニカルシー
ル（シール手段）、１９……背室、２０……空気
還流手段、２１……連通路、２２……フアン、２
３，５１……還流部材、２３ａ，５１ａ……入口
、２３ｂ，５１ｂ……出口、Ａ……隙間。
Figure 1 shows a water pump 1 according to an embodiment of the present invention.
0 is shown. FIG. 2 shows an enlarged sectional view of the main part in FIG. 1. FIG. 3 shows a sectional view of a water pump 50 according to a second embodiment of the present invention. 10, 50... Water pump, 11... Shaft, 12... Housing, 13... Bearing, 15... Impeller, 16... Mechanical seal (sealing means), 19... Back chamber, 20... Air recirculation means , 21... Communication path, 22... Fan, 2
3, 51... Reflux member, 23a, 51a... Inlet, 23b, 51b... Outlet, A... Gap.
Claims (1)
を介して支承されるシヤフトと、該シヤフトの一
端に嵌装されるインペラと、前記シヤフト上の前
記ベアリングと該インペラとの間に配設されるシ
ール手段と、前記ハウジング内部の前記ベアリン
グと該シール手段との間に形成される背室とを有
するウオーターポンプにおいて、前記背室内の前
記ベアリングと前記シール手段との間に空気還流
手段を配設し、前記ハウジングの該空気還流手段
より前記シール手段側に前記背室と外部とを連通
する連通孔を穿設したウオーターポンプ。 (2) 前記空気還流手段は、前記シヤフト上に配
設されたフアンと、前記ハウジングに固設され入
口及び出口を有し前記シヤフトとの間に隙間を形
成する還流部材とから成ることを特徴とする請求
項(1)記載のウオーターポンプ。[Claims for Utility Model Registration] (1) A housing, a shaft supported by the housing via a bearing, an impeller fitted to one end of the shaft, and a combination of the bearing on the shaft and the impeller. In the water pump, the water pump has a sealing means disposed between the bearing and the sealing means, and a back chamber formed between the bearing inside the housing and the sealing means. A water pump further comprising: an air recirculation means, and a communication hole that communicates the back chamber with the outside on a side of the housing closer to the sealing means than the air recirculation means. (2) The air recirculation means is characterized by comprising a fan disposed on the shaft, and a recirculation member that is fixed to the housing, has an inlet and an outlet, and forms a gap between it and the shaft. The water pump according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12844589U JPH0365892U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12844589U JPH0365892U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365892U true JPH0365892U (en) | 1991-06-26 |
Family
ID=31676152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12844589U Pending JPH0365892U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365892U (en) |
-
1989
- 1989-10-31 JP JP12844589U patent/JPH0365892U/ja active Pending