EP1033495B1 - Serviceadapter für ein Heizungs-oder Kühlsystem - Google Patents
Serviceadapter für ein Heizungs-oder Kühlsystem Download PDFInfo
- Publication number
- EP1033495B1 EP1033495B1 EP00104299A EP00104299A EP1033495B1 EP 1033495 B1 EP1033495 B1 EP 1033495B1 EP 00104299 A EP00104299 A EP 00104299A EP 00104299 A EP00104299 A EP 00104299A EP 1033495 B1 EP1033495 B1 EP 1033495B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shut
- housing
- hydraulic
- adapter
- adapter according
- 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.)
- Expired - Lifetime
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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/303—Retaining components in desired mutual position with a bayonet coupling
Definitions
- the present invention relates to an adapter for connecting a hydraulic device to a heating or cooling system with a housing, the at least two connection openings for connecting a flow line and has a return line, the connection openings opening into the housing.
- the invention also relates to a hydraulic device, namely a electrically operated pump, especially a centrifugal pump, to promote a Medium in the heating or cooling system, which is a pump chamber with a Has inlet and an outlet, wherein an impeller within the pump chamber is arranged.
- Hydraulic devices which have a hydraulic part, which is introduced into the lines and on which a mechanically operable Control panel or an electrically operated control unit is attached.
- the Actuator or control unit can be replaced without the Hydraulic part is removed from the line.
- the hydraulic part acts as Adapter for the control unit or the attached control panel.
- GB-A-1 141 205 suggests before, an element as a shut-off part for the connection openings of a pump from the outside to operate.
- Centrifugal pumps in particular are diverse as hydraulic devices Embodiments are known and are often used in heating circuits of Buildings.
- the pipe system is interrupted and before the pump is connected to the pipe ends by means of flanges.
- It pumps are also known in which the hydraulic part of the electrical part is separated by a can, so that the electrical part for maintenance purposes is exchanged while the hydraulic part can remain in the system.
- the object of the invention is on the one hand, a structurally simple and therefore to create inexpensive adapters that have the ability for use offers various hydraulic devices and at the same time the Replacement of the device without draining the heating or cooling system allows. It is also the object of the invention to provide an adapter for a electrically powered pump to create hydraulic devices that over the adapter can be connected to the system and the at low design effort great reliability, high ease of maintenance and thus ensures great cost savings.
- the particular advantage of the adapter according to the invention is that it can be used anywhere in the System can be used and the possibility of connection on site any hydraulic device, for example a thermostatic valve or a pump.
- the adapter according to the invention acts like a Lock, the housing interior forming the lock chamber, the first by closing the connection openings by means of the shut-off part from Line system is decoupled before that now only a residual amount of Housing containing tap water is opened. This is through the adapter according to the invention the dry exchange or dry maintenance of the possible hydraulic device connected via the adapter.
- the adapter can also be used without the hydraulic device operated by that arranged in the adapter Shut-off part by an actuator accessible from the outside of the closed is brought into the open position. Is in the open position an unimpeded flow of the medium through the adapter is guaranteed.
- the adapter has a simple function Shut-off valve and still stands for the later installation of a hydraulic Device available. The shut-off part is used to install the device closed, a cover from the opening in the housing wall removed and the hydraulic device at least with its of water loaded part inserted into the housing interior and detachable on the housing attached.
- the shut-off part can be actuated via an operating part fixed to the housing
- an actuator for the shut-off part can be provided, which is detachably attached to the adapter. So it can Actuator via an easily detachable closure, for example one Bayonet lock, to be attached to the housing.
- an easily detachable closure for example one Bayonet lock
- the shut-off part is instead of a separate actuator by the hydraulic mounted on the adapter Device self-operated. This can be done with a bayonet lock Housing are placed, with a closure closing rotation Swiveling the shut-off part in the opening position and vice versa.
- the Actuation of the shut-off means located in the housing takes place in one advantageous embodiment via a movably mounted in the interior of the housing Hydraulic insert instead of the non-positive or positive with one from the outside accessible part of the hydraulic device is connected.
- a connecting channel is advantageously introduced into the hydraulic insert, which flows through the liquid medium in the open position of the shut-off part.
- the hydraulic insert is designed so that it interacts with the Shut-off means is possible while the connection channel is in accordance with the one to be used hydraulic device can be formed. So he can Hydraulic insert can be designed so that a stepless in the connecting channel adjustable valve, in particular a thermostatic valve, can be used.
- the water flows through the connecting channel into the valve body a known thermostatic valve and from the thermostatic valve back in the interior of the housing and from there via the connection opening into the wake.
- the housing of the thermostatic valve is inserted, including the one Hydraulic insert releasably attachable to the adapter.
- the hydraulic insert forms thus the interface between the adapter according to the invention and the Thermostatic valve.
- the hydraulic insert is designed such that one or more sensors for measurement within the connection channel certain parameters can be used.
- sensors come as sensors Flow meter or temperature sensors as well as pressure sensors in Consideration.
- the shut-off part has a bypass line, which connects the two connection openings.
- the connection arises when the pump is opened by opening the screw cap is dismantled.
- Such a short circuit between the two lines is advantageous, because the system is leakproof even without a pump connected Medium can be flowed through. In a way, the system remains operational.
- the adapter with an outlet opening To provide the tap to remove the hydraulic component in the To drain the remaining interior of the housing in a targeted manner. You can do this under the A collecting container can be provided in the outlet opening.
- the individual components can be rotated relative to one another and / or with one another be stored, the rotation by a closing the pot from the outside and the individual components bracing against each other, which over the bayonet lock can be attached, twisted.
- the holding part can Be part of the corresponding hydraulic device.
- the hydraulic insert is in another particularly advantageous embodiment designed as a pump housing of a centrifugal pump and takes a pump impeller on.
- a hydraulic insert of this type there is a centrally arranged one Inflow channel for the suction mouth of the impeller and on the other hand an outflow channel provided behind the spiral channel surrounding the impeller.
- the hydraulic insert is thereby by a fastening part which can be placed on the outside of the adapter in the Function of a bearing shield held.
- the fastener is again advantageously attached to the housing via a bayonet catch.
- the decisive advantage of the pump described is that not only electrical but also the hydraulic part together with the impeller can be easily removed from the system for maintenance purposes without that all lines in the system must be completely drained.
- the adapter can be installed and installed first a lid to be closed from the outside before at a later date the pump is integrated into the system.
- the functionality of the Pipe system is already before the pump is integrated by the medium flowable chamber given, the shut-off part by a Actuator is actuated.
- the actuation of the shut-off part is via a Movement of the drive part possible. So the shut-off part can be added acting actuators are dispensed with. It can also be guaranteed that removal of the drive part causes the shut-off part to close, so that accidental opening of the system can be excluded. This aspect is particularly relevant for increased operational safety.
- a hydraulic insert is advantageously within the housing interior arranged which supports the hydraulic function of the pump.
- this Hydraulic insert which has inlet and outlet channels, is the impeller at the same time an impeller chamber.
- the hydraulic insert thus ensures a high level Flexibility of the pump, because for different pump types and pump sizes different hydraulic inserts can be used. The system is therefore can be changed later and can meet the corresponding requirements be adjusted.
- the hydraulic insert and the shut-off part rotatable within the To store the housing and also the shut-off part and the hydraulic insert in To connect the direction of rotation with a positive fit.
- a rotation of the Hydraulic insert a simultaneous rotation of the shut-off part and thus Closing or opening the connection openings.
- the drive part is additional connected to the housing via a bayonet catch, with a closing of the Closure causes the shut-off part to open by rotating the drive part.
- the assembly of the pump according to the invention on that provided in the system Connection adapter then takes place in such a way that the drive part with hydraulic insert and Motor inserted into the housing or placed on the housing and by a rotation around a pitch circle via the bayonet lock with the housing is connected. Since the shut-off part opens at the same time, the The pump is ready for operation immediately after installation and the line is open.
- a mechanical locking means is provided, which the drive part in the The closed position of the bayonet catch secures against opening, so that a unwanted disassembly of the pump is prevented.
- the drive part has especially made of plastic, holding part with which the hydraulic insert and the shut-off part are held in the interior of the housing and that Seals the housing from the outside like a lid.
- the holding part thus serves on the one hand for fixing the hydraulic components and takes on the other hand, the electrical components on the side facing away from the hydraulics on. It is against the housing and against the hydraulic insert Seals sealed.
- a holding part made of plastic ensures at the same time a magnetic flux between the motor windings and the magnets arranged inside the impeller.
- the plastic offers a certain flexibility, which is a bracing of the stacked hydraulic Components inside the housing guaranteed.
- the holding part has one pin-like projection in the housing, which has an axis stump for storage of the impeller.
- the impeller is advantageously on a in the Inserted metal ball on the front of the axle.
- the ones carried by the holding part electrical components, which include the stator windings and the control electronics include, are in an advantageous embodiment of a cover cap covered, the cover cap is removably attached to the holding part.
- the cover cap itself can also be made of plastic in order to to contribute to a reduction in weight and costs.
- the cap is rotatably held on the holding part, with a rotation the cover cap over a shaft onto a potentiometer or another electronic adjustment part acts and the change of an operating parameter of the Pump, especially the speed, causes.
- the pump according to the invention is particularly suitable for use as a so-called "decentralized" pump set up that is not centrally located in the vicinity of a Boiler, but is used decentrally near a radiator.
- a each of these decentralized pumps arranged in the system supplies them Heat transfer elements, especially the radiators, which are inside the thermally sealed room are arranged.
- the Adapter connectable pump especially to carry, since now within the Systems, especially on the heat exchangers, several acting as adapters Housing can be provided, on which the pumps can be retrofitted are.
- the pump according to the invention which can be easily retrofitted, offers thereby special protection against vandalism, in particular on freely accessible Construction sites are taking hold. So it is possible to postpone the pumps for a short time to install the cover of the apartments, however, the tightness of the system already in the construction state by the short circuit over the shut-off parts or by a Covering the adapter with lids can be tested.
- FIG. 1 is an adapter for connecting a centrifugal pump in a heating or Cooling system shown.
- the adapter has a cup-shaped housing 1, in the End wall, a connection opening 2 is introduced for a flow line 3.
- a connection opening 2 is introduced for a flow line 3.
- a shut-off part 6 is on the bottom of the housing interior placed on which is placed on a centrally arranged pin 7 and around this is rotatably mounted.
- the face of the connection opening 2 opposite Housing is open and is made of a lid-shaped holding part 8 made of plastic locked.
- the holding part 8 is attached to the housing 1 by means of a bayonet catch 9 held, the bayonet catch by a locking means, not shown in the closed position is secured.
- a hydraulic insert 10 is used in the interior of the housing is rotatably mounted in the interior of the housing.
- the hydraulic insert 10 is standing positively in operative connection with the shut-off part 6, so that a twisting of the Hydraulic insert causes the shut-off part to twist.
- Between the Holding part 8 and the hydraulic insert is also a positive connection, so that a rotation of the holding part 8 to close the bayonet lock Twisting the shut-off part 6 causes.
- the hydraulic insert 10 is on the one hand opposite the holding part 8 by an O-ring seal 11 and on the other hand opposite the housing 1 by an O-ring seal 12 sealed so that an escape of the medium from the adapter is prevented.
- the hydraulic insert 10 according to Figure 1a is for receiving a Pump impeller 13 set up, the impeller 13 on a on the holding part 8th molded axis is rotatably mounted.
- the impeller 13 is driven via Magnetic fields which are arranged on the rotor magnets 14 in the impeller 13 through the Hold part 8 act through.
- the hydraulic insert 10 is, so to speak, as Pump chamber with a centrally arranged inlet connector 15 and an outlet 16 equipped, the medium located in the interior of the housing 1 through the inlet 15 fed to the impeller 13 and via the outlet 16 in the Return line 5 is pumped.
- the holding part 8 has a pin 18 which is integrally formed on the holding part 8 and in the end face of which a ball 19 is held in a holder.
- the drive of the Impeller is made by means of magnetic fields that pass through the top surface of the holding part reach through and are generated by stator windings 20 which on the Hydraulic insert side of the holding part 8 are arranged. simultaneously the holding part 8 carries the electronics 22 necessary for regulating the pump, which like the stator windings 20 by a cover cap 21 held on the holding part 8 are covered.
- the cover cap 21 can be rotated on the holding part 8 via a shaft 24 is held, a rotation of the cap 21 an adjustment of a Potentiometer 23 and thus the adjustment of a pump parameter, especially the speed.
- FIG. 2 shows a section through the housing 1 of the adapter according to FIG. 1.
- the hydraulic insert 10 and the shut-off part 6 are rotated so that that the passage through the adapter from the connection opening 2 to Port 4 is open.
- a shut-off means 18 from the opening 2 moved away and the outlet channel 16 of the hydraulic insert 10 in register with the Brought opening 4.
- the closed position shown In the lower part of Figure 2 is the closed position shown.
- the use of shut-off part 6 and hydraulic insert 10 is so twisted that the shut-off means 18 comes to rest sealingly over the opening 2.
- the outlet channel 16 is rotated against the inner wall of the housing during the two shut-off means 17a and 17b can abut against each other and the opening 4 close.
- FIG. 3 there is a housing 1 with a pump housing trained hydraulic insert 10 shown.
- both connection openings 2 and 4 arranged in the front of the housing.
- the shut-off part 6 has two as flaps trained shut-off means 25a and 25b ( Figure 3b) on the shut-off part 6 are molded.
- the shut-off means 25a and 25b are opposite the housing 1 sealed over the openings 2 and 4 surrounding sealing rings 26.
- the Flow path is marked with arrows A and B.
- the cover cap 27 is on the holding part 8 via a bayonet lock 26 held firmly on the housing 1.
- the power electronics and the control electronics are in this embodiment on an electronic carrier placed on the holding part 8 28 arranged.
- FIG. 4 shows the adapter with a thermostatic valve 31 inserted.
- the housing 32 is modified such that it can be placed on the housing 1 and over the Bayonet lock 9 is held.
- the housing 1 of the adapter corresponds to that of Embodiment according to Figure 1, with an extra for connecting the Thermostatic valve 31 suitable hydraulic insert 33 is used.
- a connecting channel 34 is introduced, which the water from of the connection openings 2 in the direction of arrow C to one of the valve seat 35 surrounding opening leads.
- the opening is in a known manner by a Valve plate 36 can be closed.
- the openings 2 and 4 are opened by rotating the valve housing 32 or locked.
- the valve housing 32 acts via the hydraulic insert 33 in the described way on the shut-off part 37, with its molded shut-off means 38a and 38b the openings 2 and 4 can be closed.
- FIG. 5 shows a shut-off part 6 with a bypass line 39, the shut-off part 6 as known from the previously described embodiments in one Housing 1 is rotatably supported and by rotation of the not shown Drive part can be positioned.
- FIG. 5b In the bypass position shown (FIG. 5b) connects the bypass line 39, the inlet opening 2 with the outlet opening 4.
- Das Shut-off part is sealed against the openings via O-rings 40.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
- Figur 1:
- einen Schnitt durch einen erfindungsgemäßen Adapter mit Pumpe,
- Figur 2:
- einen axialen Schnitt durch den Adapter nach Figur 1,
- Figur 3:
- einen Schnitt durch einen Adapter mit stirnseitigen Anschlußöffnungen und
- Figur 4:
- einen Adapter mit aufgesetztem Thermostatventil und
- Figur 5:
- ein Absperrteil mit Bypaßkanal.
Claims (14)
- Adapter mit einem Hydraulikeinsatz (10) und einer entfernbaren hydraulischen Vorrichtung, bestehend aus einem Gehäuse (1), das mindestens zwei Anschlußöffnungen (2, 4) zum Anschluß einer Vorlaufleitung (3) und einer Rücklaufleitung (5) aufweist, wobei die Anschlußöffnungen (2, 4) im Gehäuseinnenraum münden und Absperrmittel (17, 18, 25, 38) vorgesehen sind, um die Anschlußöffnungen (2, 4) durch diese Absperrmittel (17, 18, 25, 38) durch ein im Gehäuseinnenraum angeordnetes und von außen betätigbares Absperrteil (6) gegen den Eintritt des Mediums in den Innenraum des Gehäuses (1) verschließen zu können, wobei der Adapter über eine Öffnung in einer Gehäusewand verfügt, durch die eine hydraulische Vorrichtung zumindest teilweise in den Innenraum des Adapters einführbar ist sowie Mittel vorgesehen sind, um die hydraulische Vorrichtung am Gehäuse (1) lösbar zu befestigen, dadurch gekennzeichnet, dass der Hydraulikeinsatz (10) im Innenraum des Adapters beweglich gelagert ist und mit dem Absperrteil (6) in Wirkverbindung steht und mit der hydraulischen Vorrichtung in Wirkverbindung treten kann, so dass das Absperrteil (6) über den Hydraulikeinsatz (10) durch die hydraulische Vorrichtung betätigbar ist und das Absperrteil (6) nach dem Entfernen der hydraulischen Vorrichtung die Anschlußöffnungen (2, 4) verschließend im Gehäuse (1) verbleibt.
- Adapter nach Anspruch 1, dadurch gekennzeichnet, dass in den Hydraulikeinsatz (10) ein Verbindungskanal (34) eingebracht ist, den das flüssige Medium in der geöffneten Stellung des Absperrteils (6) durchströmt.
- Adapter nach Anspruch 2, dadurch gekennzeichnet, dass im Verbindungskanal (34) des Hydraulikeinsatzes (10) ein Ventil, insbesondere ein Thermostatventil (31), angeordnet ist.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die hydraulische Vorrichtung eine von einem Elektromotor betriebene Pumpe insbesondere eine Kreiselpumpe ist, wobei der Hydraulikeinsatz (10) als Laufradkammer für ein Laufrad (13) ausgebildet ist.
- Adapter nach Anspruch 4, dadurch gekennzeichnet, dass der Elektromotor und das Laufrad (13) ein gemeinsames Antriebsteil der Pumpe bilden, das lösbar am Gehäuse (1) befestigt ist, wobei ein Lösen des Antriebsteiles eine Bewegung des Absperrteiles (6) von der geöffneten zur verschlossenen Position bewirkt.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Antriebsteil über einen Bajonettverschluss (9) am Gehäuse (1) befestigbar ist und dass ein Öffnen des Bajonettverschlusses (9) ein Schließen der Eintritts- (2) und der Austrittsöffnung (4) durch das Absperrteil (6) bewirkt, wobei das Absperrteil (6) nach dem Entfernen des Antriebsteiles im Gehäuse (1) verbleibt.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Halteteil (8), auf der dem Laufrad (13) abgewandten Seite die Motorwicklungen (20) und die Steuerelektronik (22) trägt.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass im Laufrad (13) Magneten (14) angeordnet sind, deren Magnetfeld axial ausgerichtet ist, und dass durch die Motorwicklungen (20) ein axiales Magnetfeld derart erzeugbar ist, dass das Laufrad (13) damit antreibbar ist.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Absperrteil (6) und der Hydraulikeinsatz (10) im eingebauten Zustand durch ein von außen auf die offene Stirnseite aufsetzbares Halteteil (8) gehalten sind, wobei das Halteteil (8) am Gehäuse (1) lösbar befestigbar ist.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein Gehäuse (32) der hydraulischen Vorrichtung (31) das Halteteil (8) bildet.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Halteteil (8) mit dem Hydraulikeinsatz (10) derart zusammenwirkt, dass eine Verdrehung des Halteteiles (8) das Absperrteil (6) von der schließenden in die öffnende Stellung und umgekehrt bewegt.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Halteteil (8) durch einen Bajonettverschluss (9) am Gehäuse gehalten ist.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Absperrteil (6) eine Scheibe oder einen Ring aufweist, die (der) im Gehäuse drehbar koaxial zum Hydraulikeinsatz (10) gelagert ist und die zwei, insbesondere als Ventil- oder Abdeckklappen geformte; Absperrmittel (17, 18, 25, 38) zum Verschluss der Anschlussöffnungen (2, 4) aufweist.
- Adapter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Absperrteil (6) einen Bypasskanal (39) aufweist, mit dem die Öffnungen (2, 4) verbindbar sind.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999109181 DE19909181B4 (de) | 1999-03-03 | 1999-03-03 | Serviceadapter für ein Heizungs- oder Kühlsystem |
DE1999109371 DE19909371A1 (de) | 1999-03-03 | 1999-03-03 | Kreiselpumpe mit Serviceschnittstelle |
DE19909371 | 1999-03-03 | ||
DE19909181 | 1999-03-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1033495A2 EP1033495A2 (de) | 2000-09-06 |
EP1033495A3 EP1033495A3 (de) | 2001-08-22 |
EP1033495B1 true EP1033495B1 (de) | 2004-05-12 |
Family
ID=26052154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00104299A Expired - Lifetime EP1033495B1 (de) | 1999-03-03 | 2000-03-02 | Serviceadapter für ein Heizungs-oder Kühlsystem |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1033495B1 (de) |
DE (1) | DE50006366D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0129097D0 (en) * | 2001-12-04 | 2002-01-23 | Leach Bernard | Pump assembly |
DE102004004636B4 (de) * | 2004-01-29 | 2007-04-26 | Danfoss A/S | Thermostatventilaufsatz-Gehäuse |
DE102005015213A1 (de) * | 2005-04-02 | 2006-10-05 | Pierburg Gmbh | Nassläuferpumpe |
DE102008062228A1 (de) | 2008-12-17 | 2010-07-01 | Wilo Se | Schnellverbindung einer Leitungsanschlussstelle |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252422A (en) * | 1963-05-15 | 1966-05-24 | Stulens Jean Louis | Circulating turbopump, particularly for central heating plants |
DE1528768A1 (de) * | 1965-03-25 | 1970-02-12 | Micro Electric Ag | Fluessigkeitsfoerderaggregat |
DE4031164A1 (de) * | 1990-10-03 | 1992-04-09 | Oplaender Wilo Werk Gmbh | Adapter fuer pumpen |
DE19646617A1 (de) * | 1996-11-12 | 1998-05-14 | Pierburg Ag | Kühlmittelpumpe mit elektrisch kommutiertem Elektromotor |
-
2000
- 2000-03-02 EP EP00104299A patent/EP1033495B1/de not_active Expired - Lifetime
- 2000-03-02 DE DE50006366T patent/DE50006366D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1033495A3 (de) | 2001-08-22 |
EP1033495A2 (de) | 2000-09-06 |
DE50006366D1 (de) | 2004-06-17 |
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