JPH0351198U - - Google Patents
Info
- Publication number
- JPH0351198U JPH0351198U JP11168589U JP11168589U JPH0351198U JP H0351198 U JPH0351198 U JP H0351198U JP 11168589 U JP11168589 U JP 11168589U JP 11168589 U JP11168589 U JP 11168589U JP H0351198 U JPH0351198 U JP H0351198U
- Authority
- JP
- Japan
- Prior art keywords
- blades
- pump chamber
- impeller
- cover
- fixed
- 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
- 238000010586 diagram Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
第１図及び第２図は本考案に係わるポンプの一
実施例を示す断面図、第３図は固定インペラとカ
バーと可動インペラとを示す分解斜視図、第４図
は第３図のカバーのＡ−Ａ線断面図、第５図は揚
程と吐出水量との関係図、第６図及び第７図は従
来の１段式ポンプを示す断面図、第８図は第６図
に示すカバーの平面図である。
４０……ケーシング、４２……吸入口、４４…
…第一ポンプ室、４６……吐出口、４８……第二
ポンプ室、５６……羽根、５８……固定インペラ
、６０……カバー、６２……可動インペラ、６６
……筒状部、７２……羽根、８２……アクチユエ
ータ。
1 and 2 are cross-sectional views showing one embodiment of the pump according to the present invention, FIG. 3 is an exploded perspective view showing a fixed impeller, a cover, and a movable impeller, and FIG. 4 is an exploded perspective view of the cover shown in FIG. 3. A sectional view taken along the line A-A, Fig. 5 is a diagram showing the relationship between the pumping head and the amount of water discharged, Figs. 6 and 7 are sectional views showing a conventional single-stage pump, and Fig. 8 is a diagram of the cover shown in Fig. 6. FIG. 40...Casing, 42...Intake port, 44...
...First pump chamber, 46...Discharge port, 48...Second pump chamber, 56...Blade, 58...Fixed impeller, 60...Cover, 62...Movable impeller, 66
...Cylindrical portion, 72...Blade, 82...Actuator.
Claims (1)
連絡する通路とその通路途中に設けられる第一ポ
ンプ室とを内部に形成し、その第一ポンプ室内に
複数個の羽根を突出させた固定インペラを備えた
ポンプにおいて、前記通路途中に前記第一ポンプ
室と直列に設けた第二ポンプ室と、前記固定イン
ペラの羽根の有効長さを調節するために羽根の長
さ方向に摺動自在なカバーと、前記羽根を外部と
連絡しない状態で内部に収容するための前記カバ
ーに一体に形成された筒状部と、前記第二ポンプ
室内に突出可能な羽根を有する前記カバーに固定
された可動インペラと、前記カバーと可動インペ
ラとを移動させるためのアクチユエータとを有し
、高出力低速回転時に第一ポンプ室内の固定イン
ペラの羽根の有効長さを大きくするようにカバー
を移動させると共に、前記可動インペラの羽根を
第二ポンプ室に突出させるようにし、低出力時に
は固定インペラの羽根を前記筒状部内に収容して
第一ポンプ室内に露出しないようにすると共に、
前記可動インペラの羽根を第二ポンプ室に突出さ
せないようにしたことを特徴とする多段式可変ポ
ンプ。 A suction port, a discharge port, a passage connecting the two, and a first pump chamber provided in the middle of the passage are formed inside the casing, and a fixed impeller with a plurality of blades protruding inside the first pump chamber is formed inside the casing. A pump comprising: a second pump chamber provided in series with the first pump chamber in the middle of the passage; and a cover slidable in the length direction of the blades to adjust the effective length of the blades of the fixed impeller. a cylindrical portion integrally formed with the cover for accommodating the blades therein without communicating with the outside; and a movable impeller fixed to the cover having blades that can protrude into the second pump chamber. and an actuator for moving the cover and the movable impeller, which moves the cover so as to increase the effective length of the blades of the fixed impeller in the first pump chamber during high output and low speed rotation, and an actuator for moving the cover and the movable impeller. The blades of the impeller are made to protrude into the second pump chamber, and when the output is low, the blades of the fixed impeller are housed in the cylindrical part so as not to be exposed in the first pump chamber,
A multi-stage variable pump characterized in that the blades of the movable impeller do not protrude into the second pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11168589U JPH0351198U (en) | 1989-09-26 | 1989-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11168589U JPH0351198U (en) | 1989-09-26 | 1989-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351198U true JPH0351198U (en) | 1991-05-17 |
Family
ID=31660157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11168589U Pending JPH0351198U (en) | 1989-09-26 | 1989-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351198U (en) |
-
1989
- 1989-09-26 JP JP11168589U patent/JPH0351198U/ja active Pending