EP0636794A1 - Flange strengthening - Google Patents

Flange strengthening Download PDF

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Publication number
EP0636794A1
EP0636794A1 EP94111432A EP94111432A EP0636794A1 EP 0636794 A1 EP0636794 A1 EP 0636794A1 EP 94111432 A EP94111432 A EP 94111432A EP 94111432 A EP94111432 A EP 94111432A EP 0636794 A1 EP0636794 A1 EP 0636794A1
Authority
EP
European Patent Office
Prior art keywords
flange
fork
shaped part
flange reinforcement
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
Application number
EP94111432A
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German (de)
French (fr)
Other versions
EP0636794B1 (en
Inventor
Axel Riel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KSB AG
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KSB AG
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Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Publication of EP0636794A1 publication Critical patent/EP0636794A1/en
Application granted granted Critical
Publication of EP0636794B1 publication Critical patent/EP0636794B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/42—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
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
    • 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

Definitions

  • the invention relates to a flange reinforcement for the flange surface of connecting pieces of a pump housing in sheet metal construction, one or more supporting elements being arranged between the flange reinforcement and the pump housing.
  • a previously known embodiment provides a reinforcing plate for this purpose, which is attached to the underside of the connecting flange facing the pump housing.
  • separate support elements are provided, which are connected to the end face of the housing or to the housing connecting flange for a bearing bracket, drive motor or the like.
  • the production of these parts and their proper attachment is very complex and expensive.
  • the invention is therefore based on the problem of developing a flange reinforcement which is simple to produce and which can be used for a large number of different housing diameters.
  • the flange reinforcement is attached to the connecting flange of a pressure port of a radial centrifugal pump.
  • the flange reinforcement can also be provided on the suction port of a pump housing, in which case the support element or elements are supported on the pump housing in an oblique or axial direction and are connected thereto.
  • the support element or elements are integrally formed on the outer and / or on the inner peripheral part of a connector of the fork-shaped part. If large pipeline forces are to be absorbed by the pump housing, then the attachment of the support element or elements on the outer circumference of the connecting end of the fork-shaped part is recommended. Depending on the type and the course of the connecting piece used, the molding of the element on the inner peripheral part can also be useful.
  • Another embodiment of the flange reinforcement provides that the fork-shaped part is provided with an integrally formed edge.
  • one or more support elements are formed on one or both legs of the fork-shaped part. This enables an improvement of the support effect in a plane which is 90 ° to the plane in which the support body is fastened to the connecting end of the fork-shaped part.
  • the fork-shaped part 2 of the flange reinforcement has two legs 3, 4 which are connected to one another by a connecting end 5.
  • the base area enclosed by the fork-shaped part 2 can be rectangular or square.
  • Bores 6 are congruent with flange bores of a connecting flange resting on the flange reinforcement.
  • the space 7 between the two legs 3, 4 is used to carry out a connecting piece, here a pressure port. Because of the U-shape chosen here, the connecting piece that can be used can have any shape.
  • the width of the cutout 7 corresponds here the maximum outside diameter of the connecting piece.
  • the width of the legs 3, 4 can be the same or different depending on the connecting piece used.
  • a support element 8 is formed on the outer peripheral part of the connector 5 and bent so that it comes to rest on the pump housing 1.
  • the angle ⁇ enclosed between the fork-shaped part 2 and the support element 8 is equal to or greater than 90 °.
  • This flange reinforcement can therefore also be used with connecting pieces of different lengths.
  • the support element 8 is then only to be bent more or less strongly in order to come into contact with the pump housing. Beads 9 in the support element 8 serve to improve its rigidity.
  • the flange reinforcement shown shows a support element 10, also equipped with beads 9, which is molded or attached to the outer peripheral part of the leg 3.
  • This support element additionally improves the support effect, since it also introduces forces in a different plane into the pump housing 1, in particular into a housing flange 11.
  • An edge 12 formed on the fork-shaped part 2 increases the rigidity of the entire component.
  • FIG. 2 shows how the component shown in FIG. 1 looks like a punched blank. If a support element 10 - as shown in FIG. 1 - is also formed on the leg 3 of the fork-shaped part 2, then a metal strip with the width X is required for the production. If, on the other hand, a flange reinforcement is used due to the actual circumstances, in which the molded-on part 10 is dispensed with, then a metal strip or a so-called coil with a width Y is sufficient for the production Room of the fork-shaped part 2 is cut out, which later the room 7 to Inclusion of a pressure port forms. After further forming processes, ie forming an edge 12 and pressing beads 9 or bending the support element or elements 8 or 10, the flange reinforcement can be connected directly to a flange disk and fastened to a pump housing.
  • FIG. 3 Another possible embodiment of the flange reinforcement is shown in FIG. 3, in which a space for receiving a connecting piece is created by bending out the support element 8.
  • the support element 8 is arranged on the inner circumference of the connecting 5 between the two legs 3, 4 of the fork-shaped part 2. Bevel cuts 13 at the corners of the fork-shaped part 2 require a more pleasing connection with a flange disc to be placed thereon. The corners do not protrude in any way.
  • the support body 8 is bent along a seam 14 in order to then ensure a secure contact with the associated pump housing.
  • the support element 10 formed here which can be bent over along a seam 15, can, but does not have to be formed on the fork-shaped part 2 in every case. This depends on the circumstances under which this flange reinforcement is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The subject of the invention is a flange strengthening in which a supporting element (8) is an integral part of the flange strengthening. The flange strengthening is fashioned in the shape of a fork and the supporting element (8) is shaped out from the space (7) lying between the forks. <IMAGE>

Description

Die Erfindung betrifft eine Flanschverstärkung für die Flanschfläche von Anschlußstutzen eines Pumpengehäuses in Blechbauweise, wobei zwischen Flanschverstärkung und Pumpengehäuse ein oder mehrere Stützelemente angeordnet sind.The invention relates to a flange reinforcement for the flange surface of connecting pieces of a pump housing in sheet metal construction, one or more supporting elements being arranged between the flange reinforcement and the pump housing.

Eine vorbekannte Ausführungsform sieht hierzu ein Verstärkungsblech vor, welches auf der zum Pumpengehäuse zugekehrten Unterseite des Anschlußflansches befestigt ist. Zur Kräfteübertragung zwischen Anschlußflansch und Pumpengehäuse sind separate Stützelemente vorgesehen, die an der gehäuseseitigen Stirnseite bzw. mit dem Gehäuseanschlußflansch für einen Lagerstuhl, Antriebsmotor oder dgl. verbunden sind. Die Herstellung dieser Teile sowie deren ordnungsgemäße Befestigung ist sehr aufwendig und kostenintensiv. Der Erfindung liegt daher das Problem zugrunde, eine einfach zu erstellende Flanschverstärkung zu entwickeln, die für eine Vielzahl von verschiedenen Gehäusedurchmessern verwendbar ist.A previously known embodiment provides a reinforcing plate for this purpose, which is attached to the underside of the connecting flange facing the pump housing. For the transmission of forces between the connecting flange and the pump housing, separate support elements are provided, which are connected to the end face of the housing or to the housing connecting flange for a bearing bracket, drive motor or the like. The production of these parts and their proper attachment is very complex and expensive. The invention is therefore based on the problem of developing a flange reinforcement which is simple to produce and which can be used for a large number of different housing diameters.

Die Lösung dieses Problems ist im kennzeichnenden Teil des Hauptanspruches beschrieben. Durch die Verwendung einer gabelförmigen Flanschverstärkung mit im Bereich der Verbindenden zwischen den beiden Schenkeln des gabelförmigen Teiles angeformten Stützelementes besteht die Möglichkeit, die Flanschverstärkung und die Stützelemente in einfachster Weise direkt aus bandförmigen Rohmaterial zu fertigen. Die Flanschverstärkung, die selbstverständlich mit Durchgangsbohrungen für später einzusetzende Flanschverschraubungen versehen ist, kann für eine Vielzahl von unterschiedlichen Pumpengehäusen mit gleichen Anschlußflanschen Verwendung finden. Das Stützelement wird dabei so weit vom gabelförmigen Teil abgebogen, bis es am Außenumfang des Pumpengehäuses anliegt. Dies gilt natürlich für den Fall, bei dem die Flanschverstärkung am Anschlußflansch eines Druckstutzens einer radialen Kreiselpumpe angebracht ist. Die Flanschverstärkung kann auch am Saugstutzen eines Pumpengehäuses vorgesehen werden, wobei sich dann das oder die Stützelemente in schräger oder axialer Richtung am Pumpengehäuse abstützen und damit verbunden sind.The solution to this problem is described in the characterizing part of the main claim. By using a fork-shaped flange reinforcement with a support element formed in the area of the connecting piece between the two legs of the fork-shaped part, it is possible to manufacture the flange reinforcement and the support elements in a simple manner directly from strip-shaped raw material. The flange reinforcement, which of course has through holes for flange fittings to be used later is provided, can be used for a large number of different pump housings with the same connecting flanges. The support element is bent so far from the fork-shaped part until it rests on the outer circumference of the pump housing. Of course, this applies to the case in which the flange reinforcement is attached to the connecting flange of a pressure port of a radial centrifugal pump. The flange reinforcement can also be provided on the suction port of a pump housing, in which case the support element or elements are supported on the pump housing in an oblique or axial direction and are connected thereto.

Nach einer Ausgestaltung sind das oder die Stützelemente am Außen- und/oder am Innenumfangsteil einer Verbindenden des gabelförmigen Teiles angeformt. Sind vom Pumpengehäuse große Rohrleitungskräfte aufzunehmen, dann empfiehlt sich die Anbringung des oder der Stützelemente am Außenumfang der Verbindenden des gabelförmigen Teiles. Je nach der Art und dem Verlauf des Anwendung findenden Anschlußstutzens kann die Anformung des Elementes auch am Innenumfangsteil sinnvoll sein.According to one embodiment, the support element or elements are integrally formed on the outer and / or on the inner peripheral part of a connector of the fork-shaped part. If large pipeline forces are to be absorbed by the pump housing, then the attachment of the support element or elements on the outer circumference of the connecting end of the fork-shaped part is recommended. Depending on the type and the course of the connecting piece used, the molding of the element on the inner peripheral part can also be useful.

Eine weitere Ausgestaltung der Flanschverstärkung sieht vor, daß das gabelförmige Teil mit einem angeformten Rand versehen ist. Mit dieser Maßnahme wird zum einen die Steifigkeit der Flanschverstärkung verbessert und gleichzeitig durch eine umgebogene Randzone die Verletzungsgefahr eines derartigen Blechteiles verringert.Another embodiment of the flange reinforcement provides that the fork-shaped part is provided with an integrally formed edge. With this measure, on the one hand, the rigidity of the flange reinforcement is improved and, at the same time, the risk of injury of such a sheet metal part is reduced by a bent edge zone.

Nach einer weiteren Ausgestaltung der Erfindung sind an einem oder beiden Schenkel des gabelförmigen Teiles ein oder mehrere Stützelemente angeformt. Dies ermöglicht eine Verbesserung der Abstützwirkung in einer Ebene, die sich 90° zur derjenigen Ebene befindet, in der der Stützkörper an der Verbindenden des gabelförmigen Teiles befestigt ist.According to a further embodiment of the invention, one or more support elements are formed on one or both legs of the fork-shaped part. This enables an improvement of the support effect in a plane which is 90 ° to the plane in which the support body is fastened to the connecting end of the fork-shaped part.

Für besonders schwierige Einsatzbedingungen besteht auch die Möglichkeit, mehrere Flanschverstärkungen übereinander anzuordnen, wobei dann die einzelnen Flanschverstärkungen zueinander verdreht angeordnet sind.For particularly difficult operating conditions, there is also the possibility of arranging several flange reinforcements one above the other, in which case the individual flange reinforcements are then rotated relative to one another.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigen die

Fig. 1
eine perspektivische Darstellung der Flanschverstärkung, die
Fig. 2
eine Draufsicht auf ein Rohteil der Flanschverstärkung, welches aus einem bandförmigen Rohmaterial herausgestanzt wird und die
Fig. 3
eine Draufsicht auf ein Rohteil einer Flanschverstärkung mit am Innenumfang angeformtem Stützelement.
An embodiment of the invention is shown in the drawings and will be described in more detail below. They show
Fig. 1
a perspective view of the flange reinforcement, the
Fig. 2
a plan view of a raw part of the flange reinforcement, which is punched out of a band-shaped raw material and the
Fig. 3
a plan view of a raw part of a flange reinforcement with molded on the inner circumference of the support element.

In der Fig. 1 ist perspektivisch eine Flanschverstärkung dargestellt, die auf der Oberseite eines Pumpengehäuses 1 im Bereich eines möglichen Druckstutzenanschlusses befestigt ist. Aus Gründen der Übersichtlichkeit wurde der Druckstutzen selbst und ein den Druckstutzen begrenzender Flansch nicht dargestellt. Das gabelförmige Teil 2 der Flanschverstärkung verfügt über zwei Schenkel 3, 4, die durch eine Verbindende 5 miteinander verbunden sind. Die von dem gabelförmigen Teil 2 eingeschlossene Grundfläche kann hierbei rechteckig oder quadratisch sein. Bohrungen 6 sind deckungsgleich mit Flanschbohrungen eines auf der Flanschverstärkung aufliegenden Anschlußflansches. Der Raum 7 zwischen den beiden Schenkeln 3, 4 dient zur Durchführung eines Anschlußstutzens, hier eines Druckstutzens. Aufgrund der hier gewählten U-Form kann der einsetzbare Anschlußstutzen jede beliebige Verlaufsform aufweisen. Die Breite des Ausschnittes 7 entspricht hierbei dem maximalen Außendurchmesser des Anschlußstutzens. Die Breite der Schenkel 3, 4 kann je nach verwendetem Anschlußstutzen gleich oder unterschiedlich sein. Am gabelförmigen Teil 2 ist am Außenumfangsteil der Verbindenden 5 ein Stützelement 8 angeformt und so umgebogen, daß es am Pumpengehäuse 1 zur Anlage gelangt. Der zwischen dem gabelförmigen Teil 2 und dem Stützelement 8 eingeschlossene Winkel α ist gleich oder größer 90°. Somit kann diese Flanschverstärkung auch bei unterschiedlich langen Anschlußstutzen Verwendung finden. Zur Anpassung ist dann lediglich das Stützelement 8 mehr oder weniger stark umzubiegen, um zur Anlage am Pumpengehäuse zu gelangen. Sicken 9 im Stützelement 8 dienen hierbei zur Verbesserung von dessen Steifigkeit.1 shows a perspective view of a flange reinforcement which is attached to the top of a pump housing 1 in the area of a possible pressure port connection. For the sake of clarity, the pressure port itself and a flange delimiting the pressure port have not been shown. The fork-shaped part 2 of the flange reinforcement has two legs 3, 4 which are connected to one another by a connecting end 5. The base area enclosed by the fork-shaped part 2 can be rectangular or square. Bores 6 are congruent with flange bores of a connecting flange resting on the flange reinforcement. The space 7 between the two legs 3, 4 is used to carry out a connecting piece, here a pressure port. Because of the U-shape chosen here, the connecting piece that can be used can have any shape. The width of the cutout 7 corresponds here the maximum outside diameter of the connecting piece. The width of the legs 3, 4 can be the same or different depending on the connecting piece used. On the fork-shaped part 2, a support element 8 is formed on the outer peripheral part of the connector 5 and bent so that it comes to rest on the pump housing 1. The angle α enclosed between the fork-shaped part 2 and the support element 8 is equal to or greater than 90 °. This flange reinforcement can therefore also be used with connecting pieces of different lengths. To adapt, the support element 8 is then only to be bent more or less strongly in order to come into contact with the pump housing. Beads 9 in the support element 8 serve to improve its rigidity.

Weiterhin zeigt die dargestellte Flanschverstärkung ein ebenfalls mit Sicken 9 ausgestattetes Stützelement 10, welches am Außenumfangsteil des Schenkels 3 angeformt bzw. angebracht ist. Dieses Stützelement verbessert die Abstützwirkung zusätzlich, da hierdurch auch Kräfte in einer anderen Ebene in das Pumpengehäuse 1, insbesondere in einen Gehäuseflansch 11, eingeleitet werden. Ein am gabelförmigen Teil 2 angeformter Rand 12 erhöht die Steifigkeit des gesamten Bauteiles.Furthermore, the flange reinforcement shown shows a support element 10, also equipped with beads 9, which is molded or attached to the outer peripheral part of the leg 3. This support element additionally improves the support effect, since it also introduces forces in a different plane into the pump housing 1, in particular into a housing flange 11. An edge 12 formed on the fork-shaped part 2 increases the rigidity of the entire component.

In der Fig. 2 ist dargestellt, wie das in Fig. 1 abgebildete Bauteil als Stanzzuschnitt aussieht. Falls ein Stützelement 10 - wie in Fig. 1 dargestellt - am Schenkel 3 des gabelförmigen Teils 2 mit angeformt ist, dann ist für die Herstellung ein Metallstreifen mit der Breite X erforderlich. Findet dagegen aufgrund der tatsächlichen Gegebenheiten eine Flanschverstärkung Verwendung, bei der auf das angeformte Teil 10 verzichtet wird, dann genügt zur Herstellung ein Metallstreifen oder auch ein sogenannter Coil mit einer Breite Y. Die verlustarme Herstellung dieses Bauteils ist möglich, weil das Stützelement 8 aus demjenigen Raum des gabelförmigen Teiles 2 herausgeschnitten wird, der später den Raum 7 zur Aufnahme eines Druckstutzens bildet. Nach weiteren Umformvorgängen, d. h. Anformen eines Randes 12 und Einpressen von Sicken 9 bzw. Umbiegen des oder der Stützelemente 8 bzw. 10 kann die Flanschverstärkung direkt mit einer Flanschscheibe verbunden und an einem Pumpengehäuse befestigt werden.FIG. 2 shows how the component shown in FIG. 1 looks like a punched blank. If a support element 10 - as shown in FIG. 1 - is also formed on the leg 3 of the fork-shaped part 2, then a metal strip with the width X is required for the production. If, on the other hand, a flange reinforcement is used due to the actual circumstances, in which the molded-on part 10 is dispensed with, then a metal strip or a so-called coil with a width Y is sufficient for the production Room of the fork-shaped part 2 is cut out, which later the room 7 to Inclusion of a pressure port forms. After further forming processes, ie forming an edge 12 and pressing beads 9 or bending the support element or elements 8 or 10, the flange reinforcement can be connected directly to a flange disk and fastened to a pump housing.

Eine andere mögliche Ausführungsform der Flanschverstärkung ist in der Fig. 3 gezeigt, bei der ein Raum für die Aufnahme eines Anschlußstutzens durch Herausbiegen des Stützelementes 8 erzeugt wird. In diesem Fall ist das Stützelement 8 am Innenumfang der Verbindenden 5 zwischen den beiden Schenkeln 3, 4 des gabelförmigen Teiles 2 angeordnet. Schrägschnitte 13 an den Ecken des gabelförmigen Teiles 2 bedingen eine gefälligere Verbindung mit einer darauf aufzusetzenden Flanschscheibe. Die Ecken stehen dann in keiner Weise verletzend vor. Für den Gebrauch dieser Flanschverstärkung wird der Stützkörper 8 entlang einer Naht 14 umgebogen, um danach eine sichere Anlage am zugehörigen Pumpengehäuse zu gewährleisten. Das hier angeformte Stützelement 10, welches entlang einer Naht 15 umbiegbar ist, kann, aber muß nicht in jedem Fall an dem gabelförmigen Teil 2 angeformt sein. Dies ist abhängig von den jeweiligen Gegebenheiten, unter denen diese Flanschverstärkung Verwendung findet.Another possible embodiment of the flange reinforcement is shown in FIG. 3, in which a space for receiving a connecting piece is created by bending out the support element 8. In this case, the support element 8 is arranged on the inner circumference of the connecting 5 between the two legs 3, 4 of the fork-shaped part 2. Bevel cuts 13 at the corners of the fork-shaped part 2 require a more pleasing connection with a flange disc to be placed thereon. The corners do not protrude in any way. For the use of this flange reinforcement, the support body 8 is bent along a seam 14 in order to then ensure a secure contact with the associated pump housing. The support element 10 formed here, which can be bent over along a seam 15, can, but does not have to be formed on the fork-shaped part 2 in every case. This depends on the circumstances under which this flange reinforcement is used.

Claims (4)

Flanschverstärkung für die Flanschfläche der Anschlußstutzen eines Pumpengehäuses in Blechbauweise, mit zwischen Flanschverstärkung und Pumpengehäuse angeordneten Stützelementen, dadurch gekennzeichnet, daß die Flanschverstärkung als gabelförmiges Teil (2) ausgebildet ist, wobei im Bereich der Verbindenden (5) zwischen zwei Schenkeln (3, 4) des gabelförmigen Teiles (2) ein oder mehrere Stützelemente (8) angeformt sind.Flange reinforcement for the flange surface of the connecting pieces of a pump housing in sheet metal construction, with supporting elements arranged between the flange reinforcement and the pump housing, characterized in that the flange reinforcement is designed as a fork-shaped part (2), in the area of the connecting ends (5) between two legs (3, 4) one or more support elements (8) are integrally formed on the fork-shaped part (2). Flanschverstärkung nach Anspruch 1, dadurch gekennzeichnet, daß das oder die Stützelemente (8) am Außen- und/oder am Innenumfangsteil einer Verbindenden (5) des gabelförmigen Teiles (2) angeformt sind.Flange reinforcement according to claim 1, characterized in that the support element (s) (8) are integrally formed on the outer and / or on the inner peripheral part of a connecting end (5) of the fork-shaped part (2). Flanschverstärkung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das gabelförmige Teil (2) mit einem angeformten Rand (12) versehen ist.Flange reinforcement according to claim 1 or 2, characterized in that the fork-shaped part (2) is provided with an integrally formed edge (12). Flanschverbindung nach Anspruch 3, dadurch gekennzeichnet, daß an einem oder beiden Schenkeln (3, 4) des gabelförmigen Teiles (2) ein oder mehrere Stützelemente (10) angeformt sind.Flange connection according to claim 3, characterized in that one or more supporting elements (10) are formed on one or both legs (3, 4) of the fork-shaped part (2).
EP94111432A 1993-07-26 1994-07-22 Flange strengthening Expired - Lifetime EP0636794B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4324998A DE4324998A1 (en) 1993-07-26 1993-07-26 Flange reinforcement
DE4324998 1993-07-26

Publications (2)

Publication Number Publication Date
EP0636794A1 true EP0636794A1 (en) 1995-02-01
EP0636794B1 EP0636794B1 (en) 1996-11-20

Family

ID=6493702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94111432A Expired - Lifetime EP0636794B1 (en) 1993-07-26 1994-07-22 Flange strengthening

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EP (1) EP0636794B1 (en)
AT (1) ATE145452T1 (en)
DE (2) DE4324998A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716463U1 (en) * 1997-09-15 1997-11-27 KSB AG, 67227 Frankenthal Centrifugal pump housing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379196A2 (en) * 1989-01-19 1990-07-25 Ebara Corporation Pump casing
EP0494675A2 (en) * 1991-01-11 1992-07-15 Ebara Corporation Pump casing made of sheet metal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517498C3 (en) * 1985-05-15 1993-12-02 Klein Schanzlin & Becker Ag Centrifugal pump housing
DE3517828A1 (en) * 1985-05-17 1986-11-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Pump casing
JPH0758080B2 (en) * 1989-07-15 1995-06-21 株式会社荏原製作所 Sheet metal spiral wound pump casing
IT1234504B (en) * 1989-08-18 1992-05-18 Tiziano Carretta METAL SHEET METAL CASE, ESPECIALLY FOR CENTRIFUGAL RADIAL PUMPS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379196A2 (en) * 1989-01-19 1990-07-25 Ebara Corporation Pump casing
EP0494675A2 (en) * 1991-01-11 1992-07-15 Ebara Corporation Pump casing made of sheet metal

Also Published As

Publication number Publication date
EP0636794B1 (en) 1996-11-20
ATE145452T1 (en) 1996-12-15
DE4324998A1 (en) 1995-02-02
DE59401069D1 (en) 1997-01-02

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