EP1954948A1 - Pump housing having two-point fastening - Google Patents
Pump housing having two-point fasteningInfo
- Publication number
- EP1954948A1 EP1954948A1 EP06818502A EP06818502A EP1954948A1 EP 1954948 A1 EP1954948 A1 EP 1954948A1 EP 06818502 A EP06818502 A EP 06818502A EP 06818502 A EP06818502 A EP 06818502A EP 1954948 A1 EP1954948 A1 EP 1954948A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flange
- pump
- housing according
- flanges
- pump housing
- 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
- 239000000463 material Substances 0.000 claims abstract description 56
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 230000003068 static effect Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 210000003739 neck Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially 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
- F04D29/40—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
- F04D29/4293—Details of fluid inlet or outlet
Definitions
- the present invention relates to the housing of a pump, in particular a centrifugal pump, with means for mounting the pump to a support surface, a pump chamber in which a conveyor wheel is rotatably mounted, an intake manifold and a suction nozzle to the same pressure port, wherein intake and discharge ports each one Flange and wherein the flanges have a common flange axis.
- attachment points On the pump chamber of the pump, and due to the fact that the pump chamber differs depending on the capacity of the electromotive pump in size and design, also the spacing of the attachment points depending on the size and performance the pump is.
- Another disadvantage of such pumps with three attachment points the increased assembly costs in contrast to pumps with only two attachment points.
- Object of the present invention is to provide a pump housing which can be fixed with only two attachment points on a support surface, wherein by dispensing with the conventional pin savings in material is possible and whereby a standardized assembly dimension is established by suitable arrangement of the attachment points, so that Replacement of a pump by another with any pump chamber shape and size is possible easily and with a low monthly cost.
- Electromotive pumps for integration into existing piping systems generally have an intake manifold and a pressure port similar to this, to each of which a flange is cohesively formed.
- the flanges are used to mount the pump to corresponding mating flanges of the piping system, where they are screwed with them, for example.
- the flanges have a common flange axis, due to which such pumps are also referred to as "in-line pumps.”
- Such generic pumps are manufactured in one piece from a cast material, for example from steel or from iron the pump, in particular consisting of the pump chamber, the suction and discharge nozzles and the respective flanges associated with them, Such a pump according to the prior art is shown in Fig. 1.
- the pump housing has only two attachment points, which bear against the support surface and fastening means, via which the housing with the support surface can be fixed ,
- Standardized mounting dimensions in particular within product lines of different types of pumps are inventively achieved in that the attachment points are arranged on the flanges. By normalizing the flange distance, a normalization of the pump attachment can be achieved in this way.
- Pump flanges are standardized according to DIN-EN 1092 in their dimensions. If there are always equal spacings of the two flanges within a row of pumps, a replacement of a pump is easy and problem-free, since no new attachment points must be provided on the support surface, but rather the attachment points corresponding to the previous pump can be reused. If the spacing between the two flanges is consistently maintained by all the pump types of a manufacturer, the result is one maximum flexibility in the exchange of pumps, in particular due to the independence of the attachment points of the size and shape of the pump chamber and / or the nozzle.
- the contact surfaces provided on the flanges can be made correspondingly wide.
- a stronger fastener may be used.
- an M12 threaded hole can be arranged at the attachment point, which is provided with a corresponding fastening means and ensures a better static fixation, than is possible with the use of M10 tapped holes.
- each flange for forming an attachment point may have at least one flattening directed toward the holding surface or at least one material protrusion directed toward the holding surface.
- the material projections can have a surface directed towards the holding surface and can be applied to it, which lies within a tangential plane of the outer edge of the corresponding flange. This has the advantage that only a minimum of casting material must be used to produce the holding surface. Alternatively, this surface can also project clearly from the flange edge, so that the surface lies within a plane parallel to the said tangential plane. As a result, the distance of the pump housing from the support surface can be chosen arbitrarily.
- the flanges can also have flattenings, which each form a surface directed towards the holding surface and can be applied thereto, wherein here too this surface preferably lies within a plane parallel to the tangential plane of the outer edge of the corresponding flange.
- the surfaces formed by the flats or the projections can also be configured parallel to the holding surface, whereby any angular mounting of the pump housing relative to the support surface are possible.
- At least one bore located in the flange plane in particular a threaded bore, can be introduced into the flanges at the fastening points for respectively receiving a fastening means.
- the flan plane is understood to be the plane in which the corresponding flange extends or in which the diameter of the corresponding flange lies.
- the bore can be designed with an internal thread.
- a fastening means is preferably inserted into the bore and cemented.
- An advantage of the threaded hole is the lack of cementing a fastener. Rather, a corresponding fastening means with an external thread can be screwed into the threaded bore, via which the pump housing can be fixed to the holding surface.
- the attachment point can in this case also have several, for example, two holes, with a higher stability of the attachment is achieved in particular in heavy electric motor driven pumps with thick and large flanges.
- the holes can be designed as M12 threaded holes and preferably extend between 20 mm and 50 mm, in flats in particular 30 mm deep in the respective flange. As a result, a good grip of the fastener is ensured within the flange.
- the flanges may have on their side facing the pump chamber material extensions, which may each extend from the flange to the outer edge of the corresponding flange on at least a part of the pump chamber facing side of the corresponding flange, said material extensions each one to the support surface directed surface may have such that this surface together with the surface of the corresponding material projection or the corresponding flattening can be applied to the holding surface form a total contact surface.
- this convex curvature of a material extension be designed such that in the overall contact surface geometrically a circle is inscribed, which has a diameter, for example in the range of 15 mm to 35 mm, preferably 25 mm.
- the centers of these virtual, inscribed circles can each have a definable distance from the surface of the flanges facing away from the pump chamber or from the surface of the sealing surfaces of the flanges.
- the sealing surfaces generally form on the side facing away from the pump chamber side of the flanges, concentric elevations, wherein the axis of a bore in the range of 10 mm and 20 mm, preferably in the range of 14 mm and 16 mm from the surface of the corresponding sealing surface may be spaced or spaced in the range of 7 mm and 17 mm, preferably in the range of 11 mm and 13 mm from the surface of the corresponding pump chamber facing away from the side of a flange can.
- the convex curvature of the material extensions can be defined.
- the width of the surface can be applied to the holding surface or total contact surface of the flanges with material projections can advantageously be selected depending on the respective size, in particular depending on the respective diameter of a flange. Preferably, however, this width can be between 30 mm and 80 mm, in particular 50 mm.
- the material projections and the material expansions may be integrally connected to the flanges.
- the material protrusions and the material extensions can be formed directly during the casting process of the pump housing.
- the pump housing according to the invention is therefore produced in a particularly advantageous embodiment of a casting material, in particular cast iron.
- Fig. 1 Pump housing according to the prior art with three
- Fig. 2 inventive pump housing with two attachment points
- FIG. 3 shows a perspective view of a pump housing according to the invention with flattened flanges
- Fig. 4 front view of the pump housing of FIG. 3
- Fig. 5 top view of the flange of the pressure nozzle with a
- Fig. 6 Top view of the flange of the pressure nozzle with two
- Fig. 7 front view of the flange of the suction with
- Fig. 1 shows a pump housing according to the prior art, as already described in the introduction.
- the pump housing 1 has substantially cylindrical material spigot 18, which tapers conically toward the fastening surface, and a narrow material extension 19, which is arranged on the flange 4a of the pressure port 16.
- the pins 18 are in this case formed solid and form the hull for receiving a fastening means, not shown.
- the attachment of such a pump housing 1 can be done for example on a wall.
- FIG. 2 an embodiment of the pump housing 1 according to the invention is shown, wherein in each case a directed towards the holding surface material projection 6 is arranged on both the flange 4a of the pressure nozzle 16 and the flange 4b of the suction nozzle 15, which formed to the support surface as a flat surface is and a corresponding attachment point 3a, 3b forms.
- the material projections 6 are formed such that the flat surface 13 lies within a tangential plane of the outer edge of the corresponding flange 4a, 4b.
- FIG. 6 which shows a view of the flange 4a of the pressure port 16 from above, wherein it is clearly shown in FIG. 6 that due to the position of the surface 13 within said tangential plane two material projections 6 are necessary for their formation, since there is no protruding flange material at the point of contact of the tangential plane with the outer edge of the flange 4a.
- FIG. 2 further shows that the two flanges 4 a, 4 b each have material extensions 10 on their sides directed toward the pump chamber 9, which each extend radially from the flange axis 8 to the outer edge of the corresponding flange over the side of the corresponding pump chamber 9 Flange 4a, 4b extend.
- the material extensions 10 are cohesively on the necks of pressure and suction ports 15, 16 at.
- the material expansions 10 form a surface 11 directed towards the holding surface, which, like the surface 13 of the material projections 6, is planar and together with the surface 13 of the material projections 6 forms an overall abutment surface 11 + 13. This is illustrated schematically in FIG. 7.
- FIGS. 2 and 7 the convex curvature of the material extensions 10 towards the pump chamber 9 is clearly visible in the direction parallel to the flange axis 8.
- FIG. 5 An alternative embodiment of the material projections 6 is shown in Fig. 5, wherein each of a flange 4a associated material protrusion 6 clearly protrudes from the outer edge of the flange 4a, so that the support surface directed towards the flat surface 13 within a tangent to the outer edge of the flange 4a is parallel plane.
- FIG. 1 A second embodiment variant of the pump housing 1 according to the invention is shown in FIG.
- the attachment points 5a, 5b of the two flanges 4a, 4b are hereby formed by flats, which are each directed to the support surface.
- the flats 5a, 5b surfaces 13 are formed in the region of the flange edges to the support surface. Furthermore, these surfaces 13 together with the surface 11 of the material enlargement 10, which is likewise formed by the flattening 5a, 5b, form a total contact surface 13 + 11 which can be applied to the support surface.
- the electric motor 2 driving the pump is also shown in FIG.
- Fig. 4 shows the front view of the pump according to the invention according to FIG. 3, wherein in particular the contact surfaces 13 formed by the flats 5 a, 5 b can be seen.
- the convex bulge of the material extensions 10 is in this case designed such that in the center formed by the material extension 10 contact surface 11 and in the bearing surface formed by the flattening 5a, 5b, a circle 12 can be written in the center of the flattening 12, which has a diameter d.
- This diameter d is in the embodiment of FIG. 4 25 mm.
- the axis of the bore 7 extends through the center of this circle 12 of a total contact surface 13 + 11.
- the convex bulge of Material extensions 10 here is just designed so that a part of the outer circumference of the circle just describes the shape of the surface of the convex curvature.
- the flats 5a, 5b have a width m, which is dependent on the diameter of the flange.
- the width m is determined by the distance of the flats 5 a, 5 b from the flange axis 8.
- the flattening 5a, 5b is to be designed symmetrically, so that a flange also has a flattening facing the electric motor 2, see FIG. 3.
- the width m of the contact surface 13 is to be selected according to the diameter of the flange ( Figure 7).
- the material extensions 10 have in the embodiment of FIG. 4 on a width n, which is preferably 30 mm at a diameter d of the circle 12 of 25 mm.
- the convex bulge of the material extensions 10, as shown in Fig. 4, also initially jump-shaped from the pump chamber 9 facing side of the flanges 4a, 4b may be formed with a jump height k of 2 mm, for example, with the convex bulge connects to the jump edge ,
- the center of the circle 12 has a distance X from the surface of the sealing surface 14, which in this case is preferably between 14 mm and 16 mm and can be selected independently of the flange diameter.
- the pump housing length L depends on the diameter of the flanges and is between 220 mm and 360 mm for flanges between 140 mm and 220 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005057858A DE102005057858A1 (en) | 2005-12-03 | 2005-12-03 | Pump housing with 2-point mounting |
PCT/EP2006/010875 WO2007062742A1 (en) | 2005-12-03 | 2006-11-14 | Pump housing having two-point fastening |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1954948A1 true EP1954948A1 (en) | 2008-08-13 |
EP1954948B1 EP1954948B1 (en) | 2016-08-31 |
Family
ID=37712484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06818502.4A Active EP1954948B1 (en) | 2005-12-03 | 2006-11-14 | Pump housing having two-point fastening |
Country Status (5)
Country | Link |
---|---|
US (1) | US8465253B2 (en) |
EP (1) | EP1954948B1 (en) |
DE (1) | DE102005057858A1 (en) |
RU (1) | RU2386865C2 (en) |
WO (1) | WO2007062742A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012200948A1 (en) * | 2012-01-24 | 2013-07-25 | Ksb Aktiengesellschaft | Housing for fluids |
AU2014235991B2 (en) * | 2013-03-19 | 2017-08-31 | Flow Control Llc. | Low profile pump with the ability to be mounted in various configurations |
EP3434909B1 (en) * | 2017-07-25 | 2023-09-27 | CIRCOR Pumps North America, LLC | Pump casing with integral support flange and suction flange |
JP1689844S (en) * | 2020-11-12 | 2021-07-12 | ||
JP1689843S (en) * | 2020-11-12 | 2021-07-12 | ||
US12114138B2 (en) * | 2021-10-20 | 2024-10-08 | Ford Global Technologies, Llc | Multi-vehicle audio system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HU195286B (en) * | 1986-02-03 | 1988-04-28 | Femtechnika Szivattyu Es Anyag | In-line formation of pump case for self-priming rotary pumps |
DE3806349A1 (en) * | 1988-02-27 | 1989-09-07 | Klein Schanzlin & Becker Ag | CENTRIFUGAL PUMP HOUSING |
DE69324049T2 (en) * | 1992-04-14 | 1999-10-21 | Ebara Corp., Tokio/Tokyo | Lateral flow pump |
DE19544173C1 (en) * | 1995-11-14 | 1997-06-05 | Grundfos As | Housing for a centrifugal pump |
US6264831B1 (en) * | 1999-10-11 | 2001-07-24 | Fleetguard, Inc. | Integrated fuel filter and fuel pump assembly |
DE20106608U1 (en) * | 2001-04-17 | 2001-08-30 | Grundfos A/S, Bjerringbro | Inline centrifugal pump for heating systems that can be driven by an electric motor |
DE10249128A1 (en) * | 2002-10-22 | 2004-06-03 | Wilo Ag | Pump with connecting lines to measuring points |
US7150606B2 (en) * | 2003-10-28 | 2006-12-19 | Motor Components Llc | Electromagnetic fuel pump |
-
2005
- 2005-12-03 DE DE102005057858A patent/DE102005057858A1/en not_active Withdrawn
-
2006
- 2006-11-14 US US12/093,968 patent/US8465253B2/en active Active
- 2006-11-14 RU RU2008126956/06A patent/RU2386865C2/en active
- 2006-11-14 EP EP06818502.4A patent/EP1954948B1/en active Active
- 2006-11-14 WO PCT/EP2006/010875 patent/WO2007062742A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007062742A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20080317592A1 (en) | 2008-12-25 |
WO2007062742A1 (en) | 2007-06-07 |
RU2386865C2 (en) | 2010-04-20 |
EP1954948B1 (en) | 2016-08-31 |
DE102005057858A1 (en) | 2007-06-06 |
RU2008126956A (en) | 2010-01-10 |
US8465253B2 (en) | 2013-06-18 |
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