CN101960147A - Floatable pump unit - Google Patents
Floatable pump unit Download PDFInfo
- Publication number
- CN101960147A CN101960147A CN2009801080706A CN200980108070A CN101960147A CN 101960147 A CN101960147 A CN 101960147A CN 2009801080706 A CN2009801080706 A CN 2009801080706A CN 200980108070 A CN200980108070 A CN 200980108070A CN 101960147 A CN101960147 A CN 101960147A
- Authority
- CN
- China
- Prior art keywords
- machine unit
- unit shell
- pump assembly
- pump
- floating condition
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/066—Floating-units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
- F04D15/0272—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being wear or a position
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a pump unit that is floatable and has an electric drive motor (16), a centrifugal pump driven by the same, a drive motor (16), and a unit housing (2) accommodating the centrifugal pump. Furthermore, the pump unit has at least one inlet opening (8) disposed below the fluid surface (6) in the floating state, and at least one outlet opening (10, 12). The unit housing (2) is configured and disposed such that it varies the alignment thereof compared to the floating position upon reaching a contact surface (44), wherein position-controlled switching means are provided inside the unit housing (2).
Description
Technical field
The present invention relates to the floatingpump unit of the given feature of a kind of preamble with claim 1.
Background technique
Floatingpump (schwimmfaehige Pump) can be considered as existing technology, and it swims on the liquid level of container and water body, pumping liquid or water from container or water body.If container or water body seal, and the liquid that is sucked is mixed with solid particle, then uses this pump to be proved to be problematic.This is based on the following fact: by pump operation liquid level or drawdown, make pump drop to the zone near the bottom of container or water body, the solid content in this zone can improve usually significantly.Strengthened solid particle thus and entered the risk of pump and block pumps by the inlet opening, this is related to necessary maintenance, is related to the cleaning work of cost costliness at least.
Summary of the invention
Under this background, the objective of the invention is to propose a kind of floatingpump unit that is applicable to the liquid that is mixed with solid particle, wherein, at least significantly reduced the risk that pump assembly stops up.
Purpose of the present invention realizes that by the pump assembly with the given feature of claim 1 the preferred expansion scheme of this pump assembly is provided by dependent claims, following description and accompanying drawing.
The pump in accordance with the present invention unit is relocatable, and has electric drive motor and by this motor-driven centrifugal pump and the machine unit shell that is used to hold this drive motor and centrifugal pump.In addition, this pump assembly also has at least one be arranged on inlet opening and at least one delivery outlet below the liquid level under floating condition.With machine unit shell design and be set to, make machine unit shell arrive supporting surface according to the present invention
The time change its orientation (Ausrichtung) with respect to floating position, wherein, the switch gear of positioning control is set in machine unit shell.
At this, the present invention is based on following thought: with the design of the machine unit shell of pump assembly and be set to, when the liquid level that descends owing to the operation by pump makes machine unit shell arrive supporting surface, for example during the bottom section of container bottom or water body, machine unit shell is not in fixing state there, promptly be not in stable state of equilibrium, therefore the orientation of machine unit shell is changed along with the further decline of liquid level, at this, along with this switch gear of variation of machine unit shell orientation also changes the position, and preferably close pump assembly or pump assembly is switched to the state that can stay described solid particle or can also be switched to the state that thereupon extracts in case of necessity.Machine unit shell and the change in orientation that is positioned at machine unit shell switch inside device typically realize by the inclination of machine unit shell with respect to its floating position.Worthily, at least one inlet opening of pump assembly is arranged on the machine unit shell like this, makes when machine unit shell arrival supporting surface, this inlet opening in liquid, be arranged in the basic sediment that forms by solid particle that is expected at that container or water body occur above.In this way, utilize the pump in accordance with the present invention unit can prevent in a preferred manner that centrifugal pump from sucking excessive solid particle, these solid particles might the block pumps unit.Another advantage of pump in accordance with the present invention unit is that this design proposal can prevent the running dry (Trockenlaufen) of centrifugal pump.Thus, the pump in accordance with the present invention unit has very high operational reliability.
In order when machine unit shell arrives supporting surface, to make machine unit shell with respect to its floating position change orientation, preferably machine unit shell is designed to, it can be tilted in the buoyancy of liquid direction around the axis normal in the contact area that is arranged between machine unit shell and the supporting surface.After tilting, the machine unit shell that is positioned on the supporting surface can its stable inclination attitude obtain the plane earth supporting.For this reason, machine unit shell preferably the lower section under floating condition have the plane of inclination.In the present invention, the plane of inclination is interpreted as, utilizes this plane of inclination that machine unit shell is being positioned on the supporting surface after the inclination.Wherein, the notion of plane of inclination is arranged on the plane on the machine unit shell with being not limited to entity, comprises that also machine unit shell is positioned on the supporting surface with the posture that tilts on these aspects by at least two planes that isolated point forms outside machine unit shell, the imagination.
Preferably machine unit shell is designed to, its lower section under floating condition is tapered downwards.That is to say that machine unit shell comes to a point gradually in this lower section downwards.Therefore, the lower section of machine unit shell can for example be designed to taper or wedge shape, and at this, the tip of cone of Xing Chenging or wedge-like body is the part of machine unit shell worthily like this, and this part at first arrives the supporting surface in container or the water body when liquid level reduces.Such tip must be enough blunt, in case penetrate supporting surface; This tip also must be enough sharp, to guarantee to tilt.Like this, described tip has constituted the part of tilt axis or tilt axis, and machine unit shell can center on this axis tilt.At this, the outside of the tapered lower section of machine unit shell can constitute the plane of inclination, and machine unit shell can be positioned on the supporting surface after the inclination on this plane of inclination.Worthily, the lower section of machine unit shell is tapered like this, makes machine unit shell can not keep inserting in the muddy substrate on container or the water bottom and can not change the orientation of machine unit shell by this way at floating condition where necessary.
For state is inserted in this maintenance under floating condition of the lower section that prevents machine unit shell, preferably the underpart of this section of machine unit shell is made smooth or circular.Therewith relatively, the preferred extension of pump in accordance with the present invention unit is the bottom surface of machine unit shell to be made the arch of protrusion.Machine unit shell for example can be under floating condition on lower section balling-up be tapered crownly, and tilt around the summit of its vault.At this, the outside of arch area can constitute a part that is bearing in the plane of inclination on the supporting surface.
In another preferred design of pump assembly, can on the bottom surface of machine unit shell, form the protuberance of preferred directed downwards.This protuberance designs aptly and is set to, and it at first arrives the supporting surface that forms there in the pump assembly that descends in container or water body, and machine unit shell free end around this protuberance when continuing to descend tilts then.In this case, the plane of inclination of machine unit shell typically is made of the plane of the imagination, the free end of protuberance and at least one other, be positioned on the plane of this imagination with the point in the isolated machine unit shell of this protuberance outside.Particularly preferably be, this protuberance is arranged on like this on the bottom surface of machine unit shell, make protuberance spaced apart along the center of gravity of the direction of liquid level and pump assembly, thereby make the gravity of pump assembly when protuberance arrives supporting surface, on pump assembly, apply heeling moment in the floating position of pump assembly.Can realize that thus machine unit shell always tilts towards the same side.Correspondingly, in this design proposal, machine unit shell has a uniquely defined plane of inclination.
Oblique switch (Neigungsschalter) preferably is set as the position controlling switch device, the design of this switch gear also is set to: when the orientation of machine unit shell departed from orientation under floating condition, this switch gear cut out centrifugal pump.Oblique switch can have the assembly that is installed in movably in this switch, wherein, this component design also is set to, it makes oblique switch when pump assembly is on the floating position centrifugal pump be placed on-state, and this assembly makes the position change of oblique switch when the change in orientation of machine unit shell, and make oblique switch switch to the position that centrifugal pump cuts out thus.In order to make these parts that are arranged on movably in the oblique switch have good mobility, that these parts preferably rotate and be preferably designed for spheroid.
In another preferred embodiment, the zone that is arranged under floating condition more than the liquid level of machine unit shell has the delivery outlet of at least one direction perpendicular to liquid level.This delivery outlet can be configured on the interface that is used for fixing flexible pipe, utilize this flexible pipe the liquid in container or the water body can be drawn.In addition, the pump in accordance with the present invention unit can also utilize the delivery outlet of such setting to form for example fountain., the pump assembly floating ground can be applied in pond or the pond for this reason, and the water column that when connecting centrifugal pump, stretches perpendicular to the water surface from the delivery outlet ejection.
According to governable space in the container,, also be favourable if delivery outlet is arranged on other positions of machine unit shell and has other orientation where necessary.Therefore, the pump in accordance with the present invention unit preferably has at least one is arranged essentially parallel to liquid level or also can points to liquid level sideling under floating condition delivery outlet.
Particularly preferably be, machine unit shell has at least two delivery outlets, wherein, can select a delivery outlet to be connected with the compression-side pipeline of centrifugal pump in these two delivery outlets.Correspondingly, a kind of device is set, utilizes this device can close, and open the stream that leads to another delivery outlet from the stream of delivery side of pump to a delivery outlet.In this case, for example can use 3/2 selector valve (Wegeventil).
Be close to situation about being emptied completely in order to make the pump in accordance with the present invention unit be used for container where necessary, preferably the part that constitutes the plane of inclination in the machine unit shell be arranged to removablely, and cover the attachment face that is arranged on the pump assembly
In this design proposal, only need unload the part of the machine unit shell that constitutes the plane of inclination, this part for example connects (Rastverbindung) by draw-in groove and is connected with the remaining part of machine unit shell, the pump assembly that makes the attachment face with exposure thus can rest on the supporting surface in container or the water body under the situation that does not change its orientation and the switching position.
In order to make the pump in accordance with the present invention unit not change its position on liquid level under floating condition, preferably the lower section of the machine unit shell under floating condition is provided with fixing device.This fixing device for example can be connecting plate (Lasche) or buttonhole, for example earth anchor (Bodenanker) can be fixed on this connecting plate or the buttonhole.
In another kind of preferred implementation, pump assembly has operating grip.This operating grip can be arranged on the outside of machine unit shell, perhaps is made of machine unit shell self, for example is made of the undercutting that is arranged on the machine unit shell.
Description of drawings
Below the present invention is described further by the accompanying drawing illustrated embodiment.In the accompanying drawings:
Fig. 1 shows the side view of unsteady pump assembly,
Fig. 2 shows second side view of pump assembly shown in Figure 1,
Fig. 3 shows the perspective view of pump assembly shown in Figure 1,
Fig. 4 shows pump assembly shown in Figure 1 at the perspective view that rotates with respect to Fig. 3 after 180 °,
Fig. 5 shows the sectional arrangement drawing of pump assembly shown in Figure 1,
Fig. 6 shows the pump assembly shown in Figure 1 of the lower section of pulling down machine unit shell,
Fig. 7 shows and is positioned at pump assembly on the supporting surface, shown in Figure 6,
Fig. 8 shows the pump assembly shown in Figure 1 that is in first heeling condition,
Fig. 9 shows the pump assembly shown in Figure 1 that is in second heeling condition.
Embodiment
Pump assembly shown in the figure has machine unit shell 2.Pump assembly is designed to relocatable, and wherein, under floating condition, more than 6, machine unit shell parts 4b then immerses in the middle of the liquid major part of machine unit shell parts 4a fully at liquid level.In order to produce buoyancy, in machine unit shell parts 4a, be provided with inflation 7a of buoyancy chamber and 7b (Fig. 5).Weight distribution in the pump assembly makes the longitudinal axis A of machine unit shell 2 be basically perpendicular to liquid level 6 orientations on the floating position of pump assembly.
Machine unit shell parts 4a and 4b are rotational symmetric with respect to longitudinal axis A basically.Machine unit shell parts 4a has the big external diameter than machine unit shell parts 4b, wherein, is provided with recessed 9 (Fig. 4) in the end on the zone of the external diameter that exceeds machine unit shell parts 4b of machine unit shell parts 4a.Circumferentially be provided with the handle 11 that is used for the operate pump unit at this end in recessed.
On machine unit shell parts 4b, be provided with two inlet openings 8 that come space on the longitudinal axis A direction with distributing on the whole circumference of machine unit shell parts 4b.The discharge pipe joint 10 and 12 of the delivery outlet of two formation pump assemblys is set on machine unit shell parts 4a.Discharge pipe joint 10 stretches out with one heart from longitudinal axis A on machine unit shell parts 4a, discharge pipe joint 12 then extends radially outwardly with respect to longitudinal axis A in the zone of machine unit shell parts 4a, when pump assembly was in floating condition, discharge pipe joint 12 was positioned under the liquid level 6. Discharge pipe joint 10 and 12 has outside thread respectively, thereby flexible pipe can be connected on these discharge pipe joints by AN connector where necessary.The delivery outlet of discharge pipe joint 10 is by nut 14 sealings that are screwed on the discharge pipe joint 10.Also can select to use nut 14 to seal the delivery outlet of discharge pipe joint 12.
In machine unit shell parts 4b, be provided with by electric drive motor 16 centrifugal pumps that drive, that have impeller 20.For to drive motor 16 power supplies, can connect the electric connection 21 of electricity cable and actuating cable in the arranged outside of machine unit shell parts 4b.Utilize centrifugal pump liquid can be extracted from container or water body by inlet opening 8, and arrive pump assembly through the stream that marks by direction arrow B therefrom.
A part of stream of centrifugal pump outlet side is made of the turning slide valve 20 that mainly is arranged among the machine unit shell parts 4a.But turning slide valve 20 has the rotation diverter valve 22 of the hollow cylinder of percolation, and rotation diverter valve 22 has first groove 24 and second groove 26 on its circumference.The position of groove 24 is corresponding with flow channel by discharge pipe joint 12, and the position of groove 26 is corresponding with the position of the flow channel that leads to discharge pipe joint 10.Diverter valve is rotatable is installed in movably among the machine unit shell parts 4a in rotation.The groove 24 and 26 90 ° of angles of staggering each other in a circumferential direction.By being arranged on the functional unit 28 machine unit shell parts 4a outside, that fixedly connected with rotation diverter valve 20, rotation diverter valve 20 can rotate under first state, under this state, the stream that groove 24 discharges in the discharge pipe joint 12 is closed the stream that leads to discharge pipe joint 10 simultaneously.The stream that exports to the delivery outlet that forms at discharge pipe joint 12 from centrifugal pump that produces under this state of rotation diverter valve is represented with direction arrow C among Fig. 3.When turning slide valve 20 half-twists, the stream that then leads to discharge pipe joint 12 is closed, and leads to the stream unlatching of discharge pipe joint 10.
On the floating position of pump assembly, above electric drive motor 16, be provided with oblique switch, this oblique switch has bowl-type working surface 30, ball 32 and microswitch 34.Microswitch 34 is below the groove that is located at formation on the working surface 30 on the floating position of pump assembly.On floating position, can make the Metal Ball 32 that is designed to whole ball or hemisphere be positioned at the top of the groove of working surface 30, and compressing microswitch 34, the switching position that microswitch 34 is in centrifugal pump is connected.If machine unit shell 2 changes its orientations perpendicular to its longitudinal axis A, then ball 32 can be on working surface 30 from groove to outer rolling, and correspondingly no longer oppress microswitch 34, microswitch 34 is in makes the centrifugal pump closing state.
Machine unit shell parts 4b is tapered downwards on floating position, at first is conical, overarches with outside protrusion of spherical crown shape in lower section 36 then.On the outside of this section 36 of machine unit shell parts 4b, protuberance 38 outwards stretches with one heart with the longitudinal axis A of machine unit shell 2.On this protuberance 38, constitute the groove 40 that forms connecting plate.This connecting plate constitutes fixing device, utilizes this fixing device the pump assembly that floats can be fixed on the bottom of container or water body by means of hawser or chain, thereby makes pump assembly no longer change its position under floating condition.In addition, machine unit shell parts 4a has many fixed connecting plates 42 that are distributed on its periphery equally, by means of these fixed connecting plates, can fix pump assembly by hawser or wire equally.
The working principle of pump assembly is as follows:
Pump assembly swims on floating position in container or the water body, and the longitudinal axis A of machine unit shell 2 is perpendicular to liquid level 6 orientations on this position.In this floating position, the ball 32 of oblique switch directly is placed at the top of the groove that forms on the working surface 30, and the microswitch 34 that will be arranged under the groove is urged to the switching position of connecting centrifugal pump.Centrifugal pump is exported liquid from container or water body.The liquid level 6 of container or water body is reduced, and therefore make the protuberance 38 of pump assembly on the lower section 36 that is arranged on machine unit shell parts 4b touch the supporting surface 44 that forms in the bottom of container or water body.Pump assembly is not the fixing state that is on supporting surface 44, but by protuberance 38 perpendicular to the edge of the longitudinal axis A of machine unit shell 2 to lopsidedness (Fig. 8 and 9).Here, the zone of the lower section 36 of the edge of protuberance 38 and machine unit shell parts 4b has constituted the plane of inclination, and pump assembly is positioned on the supporting surface 44 with this plane of inclination.The ball 32 of oblique switch is outwards moving from the groove that forms at this working surface on working surface 30 under the specific inclined angle alpha, and no longer contacts microswitch 34 thus, thereby makes microswitch 34 close centrifugal pump.Liquid level 6 is closed for when centrifugal pump is tilted switch apart from the height of supporting surface 44, and this depends on the setting of oblique switch to a great extent.Therefore can be set to by oblique switch, when inclined angle alpha is big, just make ball 32 leave itself and microswitch 34 contacted states, and close centrifugal pump (Fig. 9) when making liquid height at distance supporting surface 44 very low thus.
In order to utilize the pump in accordance with the present invention unit to be close to fully emptying receptacles or water body, the lower section 36 of machine unit shell parts 4b is set to, unclamp the draw-in groove connection by button 46 after is detachable, at this, lower section 36 just shows a smooth basically attachment face 48 that is arranged on the machine unit shell parts 4b, this attachment face vertical with the longitudinal axis A of machine unit shell (Fig. 6) after being removed.Utilize this smooth attachment face 48 pump assembly is on the supporting surface 44 and do not overturn (Fig. 7), thereby do not shut down.
Reference numerals list
2 machine unit shells
4a, 4b machine unit shell parts
6 liquid levels
7a, the 7b buoyancy chamber
8 input ports
9 ends, are recessed
10 delivery pipe joints
11 handles
12 delivery pipe joints
14 nuts
16 drive motor
18 impellers
20 turning slide valves
21 interfaces
22 rotation diverter valves
24 grooves
26 grooves
28 functional units
30 working surfaces
32 balls
34 microswitches
36 sections
38 protuberances
40 grooves
42 fixed connecting plates
44 supporting surfaces
46 buttons
48 attachment faces
The A longitudinal axis
The B direction arrow
The C direction arrow
The α tilt angle
Claims (12)
1. relocatable pump assembly, centrifugal pump that has electric drive motor (16), drives by this drive motor (16) and the machine unit shell (2) that holds described drive motor (16) and described centrifugal pump, described pump assembly also has at least one and be positioned at inlet opening (8) and at least one delivery outlet (10 under the liquid level (6) under floating condition, 12), it is characterized in that, described machine unit shell (2) designs and is set to, when arriving supporting surface (44), change its orientation and the switch gear that positioning control is set in this machine unit shell (2) with respect to floating condition.
2. pump assembly as claimed in claim 1 is characterized in that, described machine unit shell (2) has the plane of inclination on the lower section that is under the floating condition.
3. pump assembly as claimed in claim 1 or 2 is characterized in that, is tapered downwards in the lower section of described machine unit shell (2) under being in floating condition.
4. pump assembly as claimed in claim 3 is characterized in that, the arch that the bottom surface of described machine unit shell (2) becomes to protrude.
5. pump assembly as claimed in claim 3 is characterized in that, is provided with protuberance (38) on the bottom surface of described machine unit shell (2).
6. as each described pump assembly in the claim of front, it is characterized in that described switch gear is arranged to oblique switch, this switch gear design also is set to, when the orientation of described machine unit shell (2) departed from orientation under floating condition, this switch gear cut out centrifugal pump.
7. as each described pump assembly in the claim of front, it is characterized in that described machine unit shell (2) has the delivery outlet (10) of at least one orientation perpendicular to described liquid level (6) under floating condition in the zone of described liquid level (6) top.
8. as each described pump assembly in the claim of front, it is characterized in that described machine unit shell (2) has at least one delivery outlet (12) that is arranged essentially parallel to described liquid level (6) orientation under floating condition.
9. as each described pump assembly in the claim of front, it is characterized in that described machine unit shell (2) has at least two delivery outlets (10,12), wherein, a delivery outlet of selecting in described two delivery outlets (10,12) is connected with the pressurized effluent of described centrifugal pump.
10. as each described pump assembly in the claim of front, it is characterized in that portion's section (36) of the described plane of inclination of formation of described machine unit shell (2) is arranged to removable, and cover the attachment face (48) that is arranged on the described pump assembly.
11. pump assembly as claimed in claim 10 is characterized in that, is provided with fixing device at described machine unit shell (2) on the lower section under the floating condition (36).
12., it is characterized in that described pump assembly has operating grip (11) as each described pump assembly in the claim of front.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08004212A EP2098732A1 (en) | 2008-03-07 | 2008-03-07 | Buoyant pump power unit |
| EP08004212.0 | 2008-03-07 | ||
| PCT/EP2009/001261 WO2009109305A2 (en) | 2008-03-07 | 2009-02-21 | Floatable pump unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101960147A true CN101960147A (en) | 2011-01-26 |
| CN101960147B CN101960147B (en) | 2013-03-06 |
Family
ID=39712510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801080706A Expired - Fee Related CN101960147B (en) | 2008-03-07 | 2009-02-21 | Floatable pump unit |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110123357A1 (en) |
| EP (1) | EP2098732A1 (en) |
| CN (1) | CN101960147B (en) |
| WO (1) | WO2009109305A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456933A (en) * | 2020-05-08 | 2020-07-28 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852817B (en) * | 2011-06-27 | 2016-01-27 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| US11015359B2 (en) * | 2013-05-23 | 2021-05-25 | Scott Tarvyd MacDonald | Swimming pool water exchange device |
| JP6285117B2 (en) * | 2013-07-10 | 2018-02-28 | 株式会社荏原製作所 | Portable drainage pump |
| US9714665B2 (en) * | 2013-12-13 | 2017-07-25 | Asia Connection LLC | Pool pump with multiple outlets |
| US10907638B2 (en) | 2015-07-27 | 2021-02-02 | Wayne/Scott Fetzer Company | Multi-outlet utility pump |
| US20170122325A1 (en) * | 2015-11-03 | 2017-05-04 | Black & Decker Inc. | Cordless Fluid Pump |
| USD823345S1 (en) | 2015-12-17 | 2018-07-17 | Wayne/Scott Fetzer Company | Pump |
| CN106089787A (en) * | 2016-06-28 | 2016-11-09 | 四川中以润华灌溉科技有限公司 | A kind of bottom valve device |
| US11326608B2 (en) * | 2017-08-14 | 2022-05-10 | Wayne/Scott Fetzer Company | Thermally controlled utility pump and methods relating to same |
| CA3094775A1 (en) | 2019-09-30 | 2021-03-30 | Wayne/Scott Fetzer Company | Pump assembly and related methods |
| USD942512S1 (en) | 2020-09-29 | 2022-02-01 | Wayne/Scott Fetzer Company | Pump part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1909578A (en) * | 1930-02-05 | 1933-05-16 | Octrooi Mij Hermes Nv | Pump |
| US4778957A (en) * | 1987-06-05 | 1988-10-18 | Raritan Engineering Co., Inc. | Mercury float switch |
| CN2118844U (en) * | 1992-04-29 | 1992-10-14 | 安徽省无为电机厂 | Floating electric pump |
| US5625344A (en) * | 1994-02-25 | 1997-04-29 | Shukla; Ashok K. | Low fluid level warning device |
| FR2753236B1 (en) * | 1996-09-10 | 1998-12-04 | Conseilray Sa | MINIATURE PERISTALTIC PUMP |
| EP1010894B1 (en) * | 1998-12-19 | 2004-03-03 | GARDENA Kress + Kastner GmbH | Pond insert with pump |
| US7118354B2 (en) * | 2001-12-15 | 2006-10-10 | Fe Petro, Inc. | System and method for improving petroleum dispensing station dispensing flow rates and dispensing capacity |
| US7264449B1 (en) * | 2002-03-07 | 2007-09-04 | Little Giant Pump Company | Automatic liquid collection and disposal assembly |
| US6729847B2 (en) * | 2002-07-29 | 2004-05-04 | Attwood Corporation | Bilge pump seal and float actuator |
| DE202006005866U1 (en) * | 2006-04-06 | 2006-08-31 | Alfred Kärcher Gmbh & Co. Kg | Immersion pump for pumping liquids from containers, shafts and rooms in buildings comprises a pump housing which is immersed in a liquid to be pumped, a suction inlet for suctioning liquid and a pressure outlet |
| US20080260557A1 (en) * | 2007-04-23 | 2008-10-23 | Austin Timothy L | Floating pump for irrigation and other applications |
-
2008
- 2008-03-07 EP EP08004212A patent/EP2098732A1/en not_active Withdrawn
-
2009
- 2009-02-21 US US12/920,466 patent/US20110123357A1/en not_active Abandoned
- 2009-02-21 CN CN2009801080706A patent/CN101960147B/en not_active Expired - Fee Related
- 2009-02-21 WO PCT/EP2009/001261 patent/WO2009109305A2/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456933A (en) * | 2020-05-08 | 2020-07-28 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
| CN111456933B (en) * | 2020-05-08 | 2022-03-08 | 河海大学常州校区 | Method for detecting idle state of automobile electronic water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009109305A2 (en) | 2009-09-11 |
| EP2098732A1 (en) | 2009-09-09 |
| CN101960147B (en) | 2013-03-06 |
| WO2009109305A3 (en) | 2010-05-27 |
| US20110123357A1 (en) | 2011-05-26 |
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