US20060078447A1 - Electric water pump rotating in the correct direction - Google Patents
Electric water pump rotating in the correct direction Download PDFInfo
- Publication number
- US20060078447A1 US20060078447A1 US11/074,534 US7453405A US2006078447A1 US 20060078447 A1 US20060078447 A1 US 20060078447A1 US 7453405 A US7453405 A US 7453405A US 2006078447 A1 US2006078447 A1 US 2006078447A1
- Authority
- US
- United States
- Prior art keywords
- impeller
- chamber
- vanes
- volume
- water pump
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
- F04D29/2244—Free vortex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Definitions
- This invention is directed to the structure of non-positive-displacement rotary pump, especially involving fitting dimensions of impeller and chamber of the radial pump for liquids and particularly involving chamber dimensions of the single-phase electric centrifugal water pump.
- the non-positive-displacement rotary pumps include the radial and axial pumps for liquids. Most of the existing radial pumps for liquids are centrifugal water pumps as shown in FIG. 1 .
- Impeller 42 rotates inside the water chamber 3 and said impeller 42 is usually installed in the same shaft of the permanent magnet rotor 41 of the electric motor to form the impeller assembly 4 .
- Structure of said impeller 42 is in the structure of many vertical impeller vanes 45 on a rotating disc 44 as shown in FIG. 2 .
- Rotary water pumps can be driven by machines or hydraulic power, however, most centrifugal pumps are driven by electricity and existing electric motors driving centrifugal water pumps are basically single-phase AC synchronous or asynchronous motors for common applications of small power.
- the permanent magnet rotor single-phase synchronous motors are simple in structure, light in weight and low in cost, especially appropriate for driving centrifugal water pumps in common applications.
- the single-phase synchronous or asynchronous motors usually don't have, or have little, starting torque, and the rotating direction is not definite when the motors are just started.
- rotating direction of the single-phase synchronous or asynchronous motors is indefinite while said centrifugal water pumps need a definite rotating direction, i.e., to the direction against that of all the impeller vanes 45 bend to, as shown by the arrow R in FIG. 2 . Only in this way, can the water pumps have higher output efficiency.
- Prior art solves the problem in the following way: inserting two sets of windings into stators of said electric motors to make said driving motors run as two-phase electric motors by utilization of split-phase capacitors, thus making the motors have definite rotating direction. This approach not only increases costs of said electric motors, but also needs a capacitor added, which is not an ideal solution.
- This invention aims to overcome demerits of the prior art by an electrically driven water pump that can rotate in the correct direction automatically, i.e., the direction against that of all the impeller vanes bending to, in order to provide the markets with a kind of electrically driven high-efficient water pump that is simple in structure, low in cost and easy in using single-phase electrical power supply, which can ensure correct rotating direction.
- design and manufacture a kind of electric water pump comprising a water pump body, that has a chamber, which is basically cylindrical in shape, and a chamber cover, which is fitted at the axial outward end of said chamber; an impeller is accommodated and rotates inside said chamber coaxially; said impeller includes at least two impeller vanes that project from the impeller disc surface and said impeller vanes bend to the same direction around the rotating axis OO′ of said disc surface.
- the electric water pump in the current invention has a correct design in relations of geometrical parameters between its chamber volume and the impeller rotating inside said chamber, making said impeller have to rotate in the correct direction, i.e., against the bending direction of said impeller vanes, to realize the minimum liquid resistance and higher output efficiency, thus making it possible to install the single-phase synchronous or asynchronous motors, which are simple in structure and low in cost, to drive said water pumps while ensuring correct rotating direction each time when said water pumps are started with high output.
- FIG. 1 is an exploded view of structure of the current invention, an electric water pump that can rotate in the correct direction required.
- the arrow A in the figure indicates the direction in which the driving electric motor is inserted into the pump body;
- FIG. 2 is a three-dimensional sketch of the impeller 42 in the current invention of electric water pump
- FIG. 3 is a three-dimensional sketch of the water pump body 2 ;
- FIG. 4 is an orthographic front view of said water pump body 2 ;
- FIG. 5 is a cross-section M-M of the water pump body 2 in FIG. 4 ;
- FIG. 6 is an orthographic front view of the impeller 42 inside said water pump
- FIG. 7 is a right view of the impeller 42 in FIG. 6 .
- FIG. 1 to FIG. 7 The current invention of an electric water pump that can rotate in the correct direction required as shown in FIG. 1 to FIG. 7 , comprising a water pump body 2 , in which there is a chamber 3 basically cylindrical in shape and a chamber cover 8 is installed at the axial outward end of said chamber 3 ; said impeller 42 is accommodated and rotates co-axially in chamber 3 ; said impeller 42 has at least two vanes 45 projecting vertically on the rotating disc 44 of the impeller, and all the vanes 45 bend to the same direction around the rotating axis OO′ of said disc 44 . Assuming V as the inner volume of said chamber 3 and v as the volume enveloped by all the said impeller vane 45 when said impeller 42 rotates.
- the same electric water pump that can rotate in the correct direction required as shown in FIG. 1 to FIG. 7 , comprising a water pump body 2 , in which there is a chamber 3 basically cylindrical in shape and a chamber cover 8 is installed at the axial outward end of said chamber 3 ; said impeller 42 is accommodated and rotates co-axially in chamber 3 ; said impeller 42 has at least two vanes 45 standing vertically on the rotating disc 44 of the impeller, and all the vanes 45 bend to the same direction around the rotating axis OO′ of said disc 44 .
- Preferred embodiment of the current invention can also be the same electric water pump that can rotate in the correct direction required as shown in FIG. 1 to FIG. 7 , and design the geometrical parameters of volume of said electric water pump chamber 3 and said impeller 42 rotating inside said chamber to meet the following relations at the same time.
- quantity of the vanes 45 on the electric water pump impeller 42 is 2 to 8 as shown in FIGS. 2 and 6 .
- the most representative ones have the following parameters:
- the diameter D of said chamber 3 is 45 mm, the axial height H 16 mm; the diameter d of said impeller 42 rotating inside said chamber is 29 mm and the axial height h of said impeller vanes 6 mm.
- the quantity of said impeller vanes is 5.
- the diameter D of said chamber 3 is 48 mm, the axial height H 20.7 mm; the diameter d of said impeller 42 rotating inside said chamber is 32.5 mm and the axial height h of said impeller vanes 8 mm.
- the quantity of said impeller vanes is 5.
- the diameter D of said chamber 3 is 56 mm, the axial height H 23 mm; the diameter d of said impeller 42 rotating inside said chamber is 38 mm and the axial height h of said impeller vanes 8.5 mm.
- the quantity of said impeller vanes is 5.
- the diameter D of said chamber 3 is 60 mm, the axial height H 26 mm; the diameter d of said impeller 42 rotating inside said chamber is 42 mm and the axial height h of said impeller vanes 10 mm.
- the quantity of said impeller vanes is 5, too.
- the said quantity of the vanes 45 on the electric water pump impeller 42 is permitted to be in the range of 2 to 15.
Abstract
An electric water pump rotating in the correct direction, comprising a water pump body (2) that has a chamber (3), which is basically cylindrical in shape, and a chamber cover (8), which is fitted at the axial outward end of said chamber (3); an impeller (42) is accommodated and rotates inside said chamber (3) coaxially; said impeller (42) includes at least two impeller vanes (45) that project from the impeller disc surface (44) and said impeller vanes (45) bend to the same direction around the rotating axis OO′ of said disc surface (44); Assuming V as the volume inside said chamber (3) and v as the volume enveloped by all the said impeller vanes (45) when said impeller (42) rotates, a design can be made about relations of geometrical parameters between volume of said chamber (3) in said electric water pump and said volume enveloped by all the impeller vane (45) rotating inside said chamber (3) to be in the following range, i.e., ratio between volume enveloped by all the said impeller vane (45) in rotation and volume of said chamber (3):
v/V=0.08˜0.18,
then said impeller (42) will rotate in the direction against that of all the impeller vane (45) bend to, and liquid resistance will be less and water output higher at this time.
v/V=0.08˜0.18,
then said impeller (42) will rotate in the direction against that of all the impeller vane (45) bend to, and liquid resistance will be less and water output higher at this time.
The said electric water pump has a correct design in relations of geometrical parameters between the volume of said chamber (3) and the volume of said impeller (42) rotating inside said chamber (3), thus making it possible to install the single-phase synchronous or asynchronous motors, which are simple in structure and low in cost, to drive said water pumps while ensuring correct rotating direction each time when said water pumps are started with high output.
Description
- This invention is directed to the structure of non-positive-displacement rotary pump, especially involving fitting dimensions of impeller and chamber of the radial pump for liquids and particularly involving chamber dimensions of the single-phase electric centrifugal water pump.
- The non-positive-displacement rotary pumps include the radial and axial pumps for liquids. Most of the existing radial pumps for liquids are centrifugal water pumps as shown in
FIG. 1 .Impeller 42 rotates inside thewater chamber 3 and saidimpeller 42 is usually installed in the same shaft of the permanent magnet rotor 41 of the electric motor to form the impeller assembly 4. Structure ofsaid impeller 42 is in the structure of manyvertical impeller vanes 45 on a rotatingdisc 44 as shown inFIG. 2 . Considering liquid dynamic characteristics and improvement of water output efficiency, it is a common practice to design the intersection lines of saidimpeller vanes 45 and said rotatingdisc 44 to be arcs facing to the same rotating direction, in another word, saidimpeller vanes 45 have arc surfaces bending to the same direction around the rotating axis OO′ of saiddisc 44. Obviously, only when saidimpeller 42 rotates against the bending direction of said impeller vanes in saidchamber 3, can water output be at a higher efficiency and the resistance against the driving machine caused by the liquid be less. - Rotary water pumps can be driven by machines or hydraulic power, however, most centrifugal pumps are driven by electricity and existing electric motors driving centrifugal water pumps are basically single-phase AC synchronous or asynchronous motors for common applications of small power. The permanent magnet rotor single-phase synchronous motors are simple in structure, light in weight and low in cost, especially appropriate for driving centrifugal water pumps in common applications. However, the single-phase synchronous or asynchronous motors usually don't have, or have little, starting torque, and the rotating direction is not definite when the motors are just started. Any disturbance will cause the rotors rotate in either direction and continue to rotate faster and faster in the same direction, in another word, rotating direction of the single-phase synchronous or asynchronous motors is indefinite while said centrifugal water pumps need a definite rotating direction, i.e., to the direction against that of all the impeller vanes 45 bend to, as shown by the arrow R in
FIG. 2 . Only in this way, can the water pumps have higher output efficiency. Prior art solves the problem in the following way: inserting two sets of windings into stators of said electric motors to make said driving motors run as two-phase electric motors by utilization of split-phase capacitors, thus making the motors have definite rotating direction. This approach not only increases costs of said electric motors, but also needs a capacitor added, which is not an ideal solution. - This invention aims to overcome demerits of the prior art by an electrically driven water pump that can rotate in the correct direction automatically, i.e., the direction against that of all the impeller vanes bending to, in order to provide the markets with a kind of electrically driven high-efficient water pump that is simple in structure, low in cost and easy in using single-phase electrical power supply, which can ensure correct rotating direction.
- Technical approach of the current invention to said problem can be realized by the following embodiment: design and manufacture a kind of electric water pump that can rotate in the correct direction automatically, comprising a water pump body that has a chamber, which is basically cylindrical in shape, and a chamber cover, which is fitted at the axial outward end of said chamber; an impeller is accommodated and rotates inside said chamber coaxially; said impeller includes at least two impeller vanes that project from the impeller disc surface and said impeller vanes bend to the same direction around the rotating axis OO′ of said disc surface. Assuming V as the volume inside said chamber and v as the volume enveloped by all the said impeller vane when said impeller rotates, a design can be made about relations of geometrical parameters between volume of said chamber in said electric water pump and said volume enveloped by all the impeller vane rotating inside said chamber to be in the following range, i.e., ratio between volume enveloped by all the said impeller vane in rotation and volume of said chamber:
v/V=0.08˜0.18.
then said impeller will rotate in the direction against that of all the impeller vanes bend to, and liquid resistance will be less and water output higher at this time. - Technical problems that the current invention aims to approach can be solved by a similar technical embodiment: design and manufacture a kind of electric water pump, comprising a water pump body, that has a chamber, which is basically cylindrical in shape, and a chamber cover, which is fitted at the axial outward end of said chamber; an impeller is accommodated and rotates inside said chamber coaxially; said impeller includes at least two impeller vanes that project from the impeller disc surface and said impeller vanes bend to the same direction around the rotating axis OO′ of said disc surface. Assuming D and H as the internal diameter and axial height of said chamber, d and h as the diameter of volume enveloped by all the the impeller vane and axial height of all the impeller vane when said impeller rotates, a design can be made about relations of geometrical parameters between volume inside said chamber and said volume enveloped by all the impeller vane rotating inside said chamber to be in the following range, i.e., ratio between diameter of the volume enveloped by all the said impeller vanes in rotation and diameter of volume of said chamber:
- d/D=0.618˜0.820, and ratio between axial height of the vanes and axial height of the chamber,
h/H=0.12˜0.38.
then said impeller will rotate in the direction against that of all the impeller vane bend to, and liquid resistance will be less and water output higher at this time. - Compared with the prior art, the electric water pump in the current invention has a correct design in relations of geometrical parameters between its chamber volume and the impeller rotating inside said chamber, making said impeller have to rotate in the correct direction, i.e., against the bending direction of said impeller vanes, to realize the minimum liquid resistance and higher output efficiency, thus making it possible to install the single-phase synchronous or asynchronous motors, which are simple in structure and low in cost, to drive said water pumps while ensuring correct rotating direction each time when said water pumps are started with high output.
-
FIG. 1 is an exploded view of structure of the current invention, an electric water pump that can rotate in the correct direction required. The arrow A in the figure indicates the direction in which the driving electric motor is inserted into the pump body; -
FIG. 2 is a three-dimensional sketch of theimpeller 42 in the current invention of electric water pump; -
FIG. 3 is a three-dimensional sketch of thewater pump body 2; -
FIG. 4 is an orthographic front view of saidwater pump body 2; -
FIG. 5 is a cross-section M-M of thewater pump body 2 inFIG. 4 ; -
FIG. 6 is an orthographic front view of theimpeller 42 inside said water pump; -
FIG. 7 is a right view of theimpeller 42 inFIG. 6 . - Further introduction is made in combination with the attached drawings. The current invention of an electric water pump that can rotate in the correct direction required as shown in
FIG. 1 toFIG. 7 , comprising awater pump body 2, in which there is achamber 3 basically cylindrical in shape and achamber cover 8 is installed at the axial outward end of saidchamber 3; saidimpeller 42 is accommodated and rotates co-axially inchamber 3; saidimpeller 42 has at least twovanes 45 projecting vertically on the rotatingdisc 44 of the impeller, and all thevanes 45 bend to the same direction around the rotating axis OO′ of saiddisc 44. Assuming V as the inner volume of saidchamber 3 and v as the volume enveloped by all the saidimpeller vane 45 when saidimpeller 42 rotates. Under the condition of said chamber being basically cylindrical or truncated cone with small taper in shape, there will be
design the geometrical parameters of volume of said electricwater pump chamber 3 and saidimpeller 42 rotating inside said chamber to meet the following relation, i.e., ratio between the volume enveloped by all the impeller vanes when said impeller rotates and the volume of the chamber shall be
v/V=0.08˜0.18,
then saidimpeller 42 will rotate in the direction against that of all the impeller vanes bend to, and the liquid resistance will be smaller and water output higher. - The same electric water pump that can rotate in the correct direction required as shown in
FIG. 1 toFIG. 7 , comprising awater pump body 2, in which there is achamber 3 basically cylindrical in shape and achamber cover 8 is installed at the axial outward end of saidchamber 3; saidimpeller 42 is accommodated and rotates co-axially inchamber 3; saidimpeller 42 has at least twovanes 45 standing vertically on the rotatingdisc 44 of the impeller, and all thevanes 45 bend to the same direction around the rotating axis OO′ of saiddisc 44. Assuming D and H as the inner diameter of saidchamber 3 and its axial height, respectively; assuming d and h as the diameter of the volume enveloped by all the saidimpeller vane 45 when saidimpeller 42 rotates and axial height of said impeller vanes, respectively. Design the geometrical parameters of volume of said electricwater pump chamber 3 and saidimpeller 42 rotating inside said chamber to meet the following relation, i.e., diameter of the volume enveloped by all the said impeller vane to diameter of the said chamber when said impeller rotates shall be - d/D=0.618˜0.820, and the axial height of impeller vanes to the height of chamber shall be
h/H=0.12˜0.38,
then saidimpeller 42 will rotate in the direction against that the impeller vanes 45 bend to, and the liquid resistance will be smaller and water output higher. - Preferred embodiment of the current invention can also be the same electric water pump that can rotate in the correct direction required as shown in
FIG. 1 toFIG. 7 , and design the geometrical parameters of volume of said electricwater pump chamber 3 and saidimpeller 42 rotating inside said chamber to meet the following relations at the same time. - {circle around (1)} Diameter of the volume enveloped by all the said impeller vanes to diameter of said chamber when said impeller rotates shall be d/D=0.618˜0.820, and the axial height of impeller vanes to the height of chamber shall be h/H=0.12˜0.38; and also
- {circle around (2)} The volume enveloped by all the said impeller vane to volume of the said chamber when said impeller rotates shall be v/V=0.08˜0.18. In these conditions, said
impeller 42 will rotate in the direction against that the impeller vanes 45 bend to, and the liquid resistance will be smaller and water output higher. - In the current invention, quantity of the
vanes 45 on the electricwater pump impeller 42 is 2 to 8 as shown inFIGS. 2 and 6 . Among the preferred embodiments of the electric water pumps designed by matching the geometrical parameters of thechamber 3 and saidimpeller 42, the most representative ones have the following parameters: - 1. The diameter D of
said chamber 3 is 45 mm, the axial height H 16 mm; the diameter d of saidimpeller 42 rotating inside said chamber is 29 mm and the axial height h of said impeller vanes 6 mm. The quantity of said impeller vanes is 5. - 2. The diameter D of
said chamber 3 is 48 mm, the axial height H 20.7 mm; the diameter d of saidimpeller 42 rotating inside said chamber is 32.5 mm and the axial height h of saidimpeller vanes 8 mm. The quantity of said impeller vanes is 5. - 3. The diameter D of
said chamber 3 is 56 mm, the axial height H 23 mm; the diameter d of saidimpeller 42 rotating inside said chamber is 38 mm and the axial height h of said impeller vanes 8.5 mm. The quantity of said impeller vanes is 5. - 4. The diameter D of said
chamber 3 is 60 mm, the axial height H 26 mm; the diameter d of saidimpeller 42 rotating inside said chamber is 42 mm and the axial height h of said impeller vanes 10 mm. The quantity of said impeller vanes is 5, too. - The said quantity of the
vanes 45 on the electricwater pump impeller 42 is permitted to be in the range of 2 to 15. - It has been proved by practice that electric water pumps in the above-mentioned preferred embodiments of the current invention can automatically rotate in the correct direction required and go into normal operation status right after connected to a single-phase power supply network.
Claims (9)
1. An electric water pump rotating in the correct direction, comprising
v/V=0.08˜0.18,
a water pump body that has a chamber, which is basically cylindrical in shape, and a chamber cover, which is fitted at the axial outward end of said chamber;
an impeller is accommodated and rotates inside said chamber coaxially;
said impeller includes at least two impeller vanes that project from the impeller disc surface and said impeller vanes bend to the same direction around the rotating axis OO′ of said disc surface;
being characterized in that,
Assuming V as the volume inside said chamber and v as the volume enveloped by all the said impeller vanes when said impeller rotates, a design can be made about relations of geometrical parameters between volume of said chamber in said electric water pump and said volume enveloped by all the impeller vanes rotating inside said chamber to be in the following range, i.e., ratio between volume enveloped by all the said impeller vanes in rotation and volume of said chamber:
v/V=0.08˜0.18,
then said impeller will rotate in the direction against that of all the impeller vanes bend to, and liquid resistance will be less and water output higher at this time.
2. An electric water pump according to claim 1 , being characterized in that,
d/D=0.618˜0.820,
h/H=0.12˜0.38.
Assuming D and H as the internal diameter and axial height of said chamber, d and h as the diameter of volume enveloped by all the impeller vanes and axial height of all the impeller vanes when said impeller rotates, a design can be made also about relations of geometrical parameters between volume of said chamber in said electric water pump and said volume enveloped by all the impeller vanes rotating inside said chamber to be in the following range, i.e., ratio between diameter of the volume enveloped by all the said impeller vanes in rotation and diameter of volume of said chamber:
d/D=0.618˜0.820,
and ratio between axial height of the vanes and axial height of the chamber,
h/H=0.12˜0.38.
then said impeller will rotate in the direction against that of all the impeller vanes bend to, and liquid resistance will be less and water output higher at this time.
3. An electric water pump rotating in the correct direction, comprising:
d/D=0.618˜0.820,
h/H=0.12˜0.38.
a water pump body that has a chamber, which is basically cylindrical in shape, and a chamber cover, which is fitted at the axial outward end of said chamber;
an impeller is accommodated and rotates inside said chamber coaxially;
said impeller includes at least two impeller vanes that project from the impeller disc surface and said impeller vanes bend to the same direction around the rotating axis OO′ of said disc surface;
being characterized in that,
Assuming D and H as the internal diameter and axial height of said chamber, d and h as the diameter of volume enveloped by all the impeller vanes and axial height of all the impeller vanes when said impeller rotates, a design can be made also about relations of geometrical parameters between volume of said chamber in said electric water pump and said volume enveloped by all the impeller vanes rotating inside said chamber to be in the following range, i.e., ratio between diameter of the volume enveloped by all the said impeller vanes in rotation and diameter of volume of said chamber:
d/D=0.618˜0.820,
and ratio between axial height of the vanes and axial height of the chamber,
h/H=0.12˜0.38.
then said impeller will rotate in the direction against that of all the impeller vanes bend to, and liquid resistance will be less and water output higher at this time.
4. An electric water pump according to claim 1 , being characterized in that quantity of the vanes on the electric water pump impeller is 2 to 8.
5. An electric water pump according to claim 1 , being characterized in that the diameter D of said chamber is 45 mm, the axial height H 16 mm; the diameter d of said impeller rotating inside said chamber is 29 mm and the axial height h of said impeller vanes 6 mm; the quantity of said impeller vanes is 5.
6. An electric water pump according to claim 1 , being characterized in that the diameter D of said chamber is 48 mm, the axial height H 20.7 mm; the diameter d of said impeller rotating inside said chamber is 32.5 mm and the axial height h of said impeller vanes 8 mm; the quantity of said impeller vanes is 5.
7. An electric water pump according to claim 1 , being characterized in that the diameter D of said chamber is 56 mm, the axial height H 23 mm; the diameter d of said impeller rotating inside said chamber is 38 mm and the axial height h of said impeller vanes 8.5 mm; the quantity of said impeller vanes is 5.
8. An electric water pump according to claim 1 , being characterized in that the diameter D of said chamber is 60 mm, the axial height H 26 mm, the diameter d of said impeller rotating inside said chamber is 42 mm and the axial height h of said impeller vanes 10 mm; the quantity of said impeller vanes is 5.
9. An electric water pump according to claim 1 , being characterized in that quantity of the vanes on the electric water pump impeller is 2 to 15.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420088569 CN2736561Y (en) | 2004-09-24 | 2004-09-24 | Motor water pump |
CN200420088569.X | 2004-09-24 | ||
CNB2004100523458A CN100363627C (en) | 2004-11-17 | 2004-11-17 | Automatic rotating electric water pump according to correct direction |
CN200410052345.8 | 2004-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060078447A1 true US20060078447A1 (en) | 2006-04-13 |
Family
ID=34933826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/074,534 Abandoned US20060078447A1 (en) | 2004-09-24 | 2005-03-08 | Electric water pump rotating in the correct direction |
Country Status (2)
Country | Link |
---|---|
US (1) | US20060078447A1 (en) |
EP (1) | EP1640617A3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012180828A (en) * | 2011-02-07 | 2012-09-20 | Aisan Industry Co Ltd | Electric pump |
US20140127040A1 (en) * | 2011-06-22 | 2014-05-08 | Shenzhen Xingrisheng Industrial Co., Ltd. | Single-phase permanent magnet rotor electric water pump only rotating in right direction and its realization method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5441535A (en) * | 1992-11-27 | 1995-08-15 | Urawa Kohgyo Co., Ltd. | Blood pump |
US5711657A (en) * | 1994-07-15 | 1998-01-27 | Oase-Pumpen Wuebker Soehne Gmbh & Co. Maschinenfabrik | Centrifugal pump, particularly for fountains |
US6988873B2 (en) * | 2000-07-06 | 2006-01-24 | Askoll Holding S.R.L. | Monodirectional impeller with flexible vanes |
US7044720B1 (en) * | 2004-12-10 | 2006-05-16 | Toshiba Home Technology Corporation | Fan motor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3339490A (en) * | 1966-04-04 | 1967-09-05 | Allis Chalmers Mfg Co | Rotary pump |
US3759628A (en) * | 1972-06-14 | 1973-09-18 | Fmc Corp | Vortex pumps |
JPS58210395A (en) * | 1982-05-31 | 1983-12-07 | Ebara Corp | Volute pump |
JPS59165891A (en) * | 1983-03-10 | 1984-09-19 | Ebara Corp | Vortex pump |
-
2005
- 2005-02-18 EP EP05003526A patent/EP1640617A3/en not_active Withdrawn
- 2005-03-08 US US11/074,534 patent/US20060078447A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5441535A (en) * | 1992-11-27 | 1995-08-15 | Urawa Kohgyo Co., Ltd. | Blood pump |
US5711657A (en) * | 1994-07-15 | 1998-01-27 | Oase-Pumpen Wuebker Soehne Gmbh & Co. Maschinenfabrik | Centrifugal pump, particularly for fountains |
US6988873B2 (en) * | 2000-07-06 | 2006-01-24 | Askoll Holding S.R.L. | Monodirectional impeller with flexible vanes |
US7044720B1 (en) * | 2004-12-10 | 2006-05-16 | Toshiba Home Technology Corporation | Fan motor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012180828A (en) * | 2011-02-07 | 2012-09-20 | Aisan Industry Co Ltd | Electric pump |
US20130034455A1 (en) * | 2011-02-07 | 2013-02-07 | Masaki Ikeya | Electric pump |
US20140127040A1 (en) * | 2011-06-22 | 2014-05-08 | Shenzhen Xingrisheng Industrial Co., Ltd. | Single-phase permanent magnet rotor electric water pump only rotating in right direction and its realization method |
Also Published As
Publication number | Publication date |
---|---|
EP1640617A2 (en) | 2006-03-29 |
EP1640617A3 (en) | 2012-08-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100588087C (en) | Single-phase induction motor | |
CN100526655C (en) | Impeller for fuel oil pump and fuel oil pump using the same | |
CN105370584B (en) | Electrodynamic pump | |
CN101230863A (en) | Magnetic suspension pump | |
EP3032723B1 (en) | Pump and cleaning apparatus | |
EP3032706A2 (en) | Pump and cleaning apparatus | |
US20060078447A1 (en) | Electric water pump rotating in the correct direction | |
US20080231140A1 (en) | Electric machine having claw pole stator | |
JP2016116442A (en) | Rotor, motor, pump and cleaning apparatus | |
CN201492732U (en) | Lantern ring tail guide vane axial-flow pump heart-assist device | |
CN208862694U (en) | A kind of series excited machine | |
CN102654128B (en) | Magnetic-suspension underwater electric pump | |
CN100363627C (en) | Automatic rotating electric water pump according to correct direction | |
CN108512319A (en) | A kind of switched reluctance machines | |
CN204357719U (en) | Recycle pump | |
JP4340632B2 (en) | Permanent magnet type rotating electric machine and compressor using the same | |
CN208169143U (en) | Self power generation fluid rotating mechanism and turbine pump | |
CN109088515A (en) | A kind of series excited machine | |
CN201474995U (en) | Water pump of permasyn motor | |
JP2001522434A (en) | Transport equipment for fuel | |
CN201943967U (en) | Magnetic-suspension underwater electric pump | |
CN201027667Y (en) | Magnetic suspension pump | |
CN214616854U (en) | Generator for faucet | |
CN110345069A (en) | A kind of motor and the integrated novel lobe pump of the pump housing | |
CN204992985U (en) | Vertical axis dual drive power generating equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SHENZHEN XING RISHENG INDUSTRIAL CO., LTD., CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DENG, PEIXING;REEL/FRAME:016370/0994 Effective date: 20050126 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |