EP2181264A1 - Kreiselmotorpumpe - Google Patents
KreiselmotorpumpeInfo
- Publication number
- EP2181264A1 EP2181264A1 EP08801683A EP08801683A EP2181264A1 EP 2181264 A1 EP2181264 A1 EP 2181264A1 EP 08801683 A EP08801683 A EP 08801683A EP 08801683 A EP08801683 A EP 08801683A EP 2181264 A1 EP2181264 A1 EP 2181264A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pump according
- motor
- vibration
- damping element
- 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
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
- 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
- F04D13/0606—Canned motor pumps
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Definitions
- the invention relates to a centrifugal motor pump in particular in Najimatirbauart whose electric motor rotor drives the pump impeller with its shaft and is surrounded by the motor stator.
- the object of the invention is in a centrifugal motor pump of the type mentioned in a structurally simple way to reduce air and structure-borne noise emissions with high efficiency and this particular for pumps with small external dimensions. It is another object of the invention to provide a simple way electrical connections to the electric motor.
- At least one vibration-damping element is electrically conductive and forms an electrical connection to the electric motor of the pump.
- cables inside the motor housing are not required.
- the invention makes it possible to dispense with the power cables that can transmit structure-borne noise from the engine to the housing. This also eliminates the sealing measures at the exit of the cable from the motor housing. Furthermore, the assembly is facilitated.
- the material of the vibration damping element may be electrically conductive and in particular made of metal or of a conductive plastic.
- the material of the vibration-damping element is electrically non-conductive and in particular made of plastic and that at least one electrical conductor is arranged in or on the vibration-damping element. It is preferably proposed that the vibration-damping element and / or the electrical conductor (s) have electrical insulation.
- FIG. 1 shows a first embodiment with individual vibration dampers between the motor stator and the outer motor housing
- Fig. 2 shows a second embodiment with an elastic molding compound between the motor stator and the motor housing
- Fig. 3 shows a third embodiment similar to Figure 2 with a the
- FIG. 4 shows a fourth embodiment similar to Figure 3 with individual
- FIG. 5 shows a fifth embodiment of a tube pump, wherein the inner
- Fig. 6 is a sixth embodiment similar to Figure 5, wherein the
- FIG. 7 shows a seventh embodiment with electrically conductive damping
- the motor stator 17 forms a cylindrical inner space 18, which is flowed through by the conveying liquid and in which a rotor 7 is rotatably mounted with an engine shaft 21.
- the motor stator 17 On both sides of the casing 11, the motor stator 17 is surrounded by an engine inner housing 19. This case 19 may be missing and through the sheath 11 to be replaced. In all embodiments, the motor inner housing 19 is shown as part of the motor stator 17.
- the motor stator 17 is surrounded by an outer motor housing 3 at a distance such that there is an intermediate space 22 between the stator 17 and the housing 3.
- individual vibration dampers are fastened in particular as spring elements 10 which decouple the stator 17 from the motor housing 3 and thus ensure that vibrations generated by the stator or rotor are essentially not transmitted to the motor housing 3.
- the vibration damping element may be formed by a gel.
- the gel can form elements that are surrounded by a socket and / or a natural skin.
- the pump interior 20 adjoins the intermediate space 22 with the outer pump housing 1, which is preferably helical and has an axial suction opening 23 and an outlet opening 24.
- the liquid flowing through the pump interior 20 also flows through the gap 22 and thus flows around the motor stator 17 so that it is cooled not only via the rotor chamber 15 on the inside but also on the outside.
- the outer pump housing 1 is connected to the outer motor housing 3 via flanges 2. Further, the motor connection cable 4 is guided through a seal 16 through the wall of the outer motor housing 3 to the outside.
- the second embodiment of FIG. 2 differs from the first in that the gap 22 is partially or completely filled by an elastic molding compound 12 which dampens the motor stator 17 in the outer motor housing 3.
- the elastic molding compound 12 is liquid-permeable, so that a flushing of the stator 17 takes place.
- the molding compound may consist of an open-cell plastic foam.
- the third embodiment of FIG. 3 differs from that of FIG.
- the pump impeller 5 is surrounded by a spiral housing 13 that is attached to the stator 17 in particular on the motor inner housing 19.
- a gap 25 which surrounds the spiral housing 13 and is connected to the intermediate space 22.
- a vibration damper 14 may be located, which is designed as a sleeve-shaped seal and bridges the inlet connection between the suction port 23 and the suction port 26 in the motor inner housing.
- the outlet opening 27 in the spiral housing 13 is arranged without such a seal, so that liquid emerging from the spiral housing 13 enters the intermediate spaces 22 and 25 and thus flows around the spiral housing 13 and the stator 17 on the outside.
- the fourth embodiment of FIG. 4 differs from that of FIG.
- the fifth embodiment of FIG. 5 differs from that of FIG. 3 in that the design of a pipe pump was selected, wherein the conveying liquid flows through the gap 22 in its entirety to an outlet opening 24, which on the other side of the motor pump coaxial with Suction opening 23 is arranged.
- the pump impeller 5 is surrounded by a spiral housing 13, so that both a gap 22 and a gap 25 is made.
- the stator 17 is supported by vibration dampers 10, 12b.
- the vibration damper 10 can serve as a guide of the flow.
- the embodiment of FIG. 6 again shows a tube pump and differs from that of FIG. 5 only in that a volute casing 13 is missing.
- the storage of the motor inside the flooded with heating water motor housing is realized by a metal or plastic spring.
- the stiffness of the springs is adjusted so that the natural frequency of the elastically mounted motor is below the excitation frequency, and thus is decoupled subcritical.
- the material of the springs has temperature and corrosion resistance.
- the material of the vibration-damping spring elements 28 is electrically conductive, in particular made of metal or a conductive plastic. With non-electrically conductive material, a power line 29 is integrated so that the mechanical properties are not affected.
- the spring is used to establish an electrical connection between the engine and the power supply and / or with sensors arranged in or on the engine. Since the springs are in the water, appropriate measures to isolate the spring and the electrical connections to the medium are provided.
- the springs therefore assume several functions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007040461A DE102007040461A1 (de) | 2007-08-28 | 2007-08-28 | Kreiselmotorpumpe |
| PCT/EP2008/006951 WO2009030391A1 (de) | 2007-08-28 | 2008-08-25 | Kreiselmotorpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2181264A1 true EP2181264A1 (de) | 2010-05-05 |
| EP2181264B1 EP2181264B1 (de) | 2018-04-18 |
Family
ID=39941603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08801683.7A Active EP2181264B1 (de) | 2007-08-28 | 2008-08-25 | Kreiselmotorpumpe |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2181264B1 (de) |
| CN (1) | CN101790645B (de) |
| DE (1) | DE102007040461A1 (de) |
| WO (1) | WO2009030391A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009014639A1 (de) * | 2009-03-24 | 2010-09-30 | Wilo Se | Kreiselmotorpumpe |
| EP2397699A1 (de) * | 2010-06-16 | 2011-12-21 | Behr France Rouffach SAS | Gebläse für eine Klimaanlage eines Kraftfahrzeuges |
| DE102012213598B3 (de) * | 2012-08-01 | 2013-11-14 | Eberspächer Climate Control Systems GmbH & Co. KG | Gebläse, insbesondere Verbrennungsluftgebläse für ein Fahrzeugheizgerät |
| CN106593820B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| CN106593819B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| CN106593822B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| CN106593823B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| CN106593821B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| CN106593818B (zh) * | 2016-12-02 | 2019-05-03 | 青岛海尔股份有限公司 | 冷藏冷冻装置 |
| DE102019109928A1 (de) | 2019-04-15 | 2020-10-15 | Alfmeier Präzision SE | Pumpengehäuse, Pumpe und Sitz |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2312848A (en) * | 1941-01-07 | 1943-03-02 | Albert R Pezzillo | Motor driven pump unit |
| DE3419831A1 (de) * | 1984-05-26 | 1985-11-28 | Albert 5204 Lohmar Blum | Pumpenaggregat mit gehaeuse aus kunststoff |
| EP0717195B1 (de) * | 1992-04-14 | 2000-11-08 | Ebara Corporation | Pumpengehäuse in Blechbauweise |
| US5494403A (en) * | 1992-04-14 | 1996-02-27 | Ebara Corporation | Full-circumferential flow pump |
| EP0566087B1 (de) * | 1992-04-14 | 1997-02-12 | Ebara Corporation | Pumpengehäuse in Blechbauweise |
| US20060034717A1 (en) * | 2004-08-13 | 2006-02-16 | Joseph Castellone | Wet rotor circulators |
-
2007
- 2007-08-28 DE DE102007040461A patent/DE102007040461A1/de not_active Withdrawn
-
2008
- 2008-08-25 CN CN2008801046397A patent/CN101790645B/zh not_active Expired - Fee Related
- 2008-08-25 EP EP08801683.7A patent/EP2181264B1/de active Active
- 2008-08-25 WO PCT/EP2008/006951 patent/WO2009030391A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009030391A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009030391A1 (de) | 2009-03-12 |
| EP2181264B1 (de) | 2018-04-18 |
| CN101790645A (zh) | 2010-07-28 |
| DE102007040461A1 (de) | 2009-03-05 |
| CN101790645B (zh) | 2012-09-19 |
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