JPH01148091U - - Google Patents
Info
- Publication number
- JPH01148091U JPH01148091U JP4286388U JP4286388U JPH01148091U JP H01148091 U JPH01148091 U JP H01148091U JP 4286388 U JP4286388 U JP 4286388U JP 4286388 U JP4286388 U JP 4286388U JP H01148091 U JPH01148091 U JP H01148091U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- blade
- impeller
- flow pump
- mixed flow
- 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
- 230000002093 peripheral effect Effects 0.000 description 3
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は本考案の一実施例を示す羽根車ハブを
備えた可動羽根斜流ポンプの軸芯方向断面図、第
２図は第１図の要部の軸芯に直角の断面図、第３
図及び第４図は従来例を示す斜流ポンプの軸芯方
向断面図及び要部の軸芯に直角の断面図である。
１……羽根車ハブ、２……羽根、２′……羽根
外周面、２ａ……羽根入口ハブ端、２ｂ……羽根
出口ハブ端、１１……羽根内周面、１２，１２′
……膨らみ部、１３……ハブ表面、Ｃ，Ｃ′……
間隙、ｌ……羽根の旋回軸線、ｍ……回転軸線、
ｏ……羽根外周面の球面中心。
Fig. 1 is a sectional view in the axial direction of a movable blade mixed flow pump equipped with an impeller hub showing an embodiment of the present invention; 3
4 and 4 are a sectional view in the axial direction of a conventional mixed flow pump and a sectional view perpendicular to the axis of the main part. 1... Impeller hub, 2... Blade, 2'... Blade outer peripheral surface, 2a... Blade inlet hub end, 2b... Blade outlet hub end, 11... Blade inner peripheral surface, 12, 12'
...Bulge, 13...Hub surface, C, C'...
Gap, l: rotation axis of the blade, m: rotation axis,
o... Center of the spherical surface of the outer peripheral surface of the blade.
Claims (1)
さより大きく形成した可動羽根斜流ポンプにおい
て、羽根車のハブ表面と羽根ハブ端部とが何れの
羽根設定角度に対しても常に同一間隙となるよう
な膨らみ部を、羽根車ハブ表面に設けたことを特
徴とする可動羽根斜流ポンプの羽根車。 ２ 羽根外周面を形成する球面の中心に対し、ハ
ブ球面の中心を流れ方向に見て回転軸線上後方に
ずらせた可動羽根斜流ポンプにおいて、羽根車の
ハブ表面と羽根ハブ端部とが何れの羽根設定角度
に対しても常に同一間隙となるような膨らみ部を
、羽根車ハブ表面に設けたことを特徴とする可動
羽根斜流ポンプの羽根車。 ３ 羽根旋回軸と吸込側で鈍角で交わる母線をも
つ円錐面でハブ表面を形成した可動羽根斜流ポン
プにおいて、羽根車のハブ表面と羽根ハブ端部と
が何れの羽根設定角度に対しても常に同一間隙と
なるような膨らみ部を、羽根車ハブ表面に設けた
ことを特徴とする可動羽根斜流ポンプの羽根車。[Scope of Claim for Utility Model Registration] 1. In a movable blade mixed flow pump in which the height of the blades at the inlet of the blade is larger than the height of the blades at the outlet thereof, the hub surface of the impeller and the end of the blade hub are connected to each other. An impeller for a movable blade mixed flow pump, characterized in that a bulge is provided on the surface of the impeller hub so that the gap always remains the same regardless of the set angle. 2. In a movable blade mixed flow pump in which the center of the hub spherical surface is shifted rearward on the axis of rotation when viewed in the flow direction with respect to the center of the spherical surface forming the outer circumferential surface of the blade, the hub surface of the impeller and the blade hub end are An impeller for a movable blade mixed flow pump, characterized in that a bulge is provided on the surface of the impeller hub so that the gap is always the same even for the blade setting angle. 3. In a movable blade mixed flow pump in which the hub surface is formed of a conical surface with a generatrix that intersects the blade rotation axis at an obtuse angle on the suction side, the impeller hub surface and the blade hub end are fixed at any blade setting angle. An impeller for a movable blade mixed flow pump, characterized in that a bulge is provided on the surface of the impeller hub so that the gap is always the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042863U JPH0540313Y2 (en) | 1988-04-01 | 1988-04-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988042863U JPH0540313Y2 (en) | 1988-04-01 | 1988-04-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01148091U true JPH01148091U (en) | 1989-10-13 |
| JPH0540313Y2 JPH0540313Y2 (en) | 1993-10-13 |
Family
ID=31269264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988042863U Expired - Lifetime JPH0540313Y2 (en) | 1988-04-01 | 1988-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0540313Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017299A (en) * | 1983-07-11 | 1985-01-29 | Ebara Corp | Movable-vane mixed-flow pump |
| JPS6236281U (en) * | 1985-08-21 | 1987-03-03 | ||
| JPS62168998A (en) * | 1986-01-20 | 1987-07-25 | Kubota Ltd | Movable vane impeller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57103113A (en) * | 1980-12-17 | 1982-06-26 | Sony Corp | Magnetic recorder and reproducer |
-
1988
- 1988-04-01 JP JP1988042863U patent/JPH0540313Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6017299A (en) * | 1983-07-11 | 1985-01-29 | Ebara Corp | Movable-vane mixed-flow pump |
| JPS6236281U (en) * | 1985-08-21 | 1987-03-03 | ||
| JPS62168998A (en) * | 1986-01-20 | 1987-07-25 | Kubota Ltd | Movable vane impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0540313Y2 (en) | 1993-10-13 |