EP0260501B1 - Pump driven by an electromotor - Google Patents

Pump driven by an electromotor Download PDF

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Publication number
EP0260501B1
EP0260501B1 EP87112553A EP87112553A EP0260501B1 EP 0260501 B1 EP0260501 B1 EP 0260501B1 EP 87112553 A EP87112553 A EP 87112553A EP 87112553 A EP87112553 A EP 87112553A EP 0260501 B1 EP0260501 B1 EP 0260501B1
Authority
EP
European Patent Office
Prior art keywords
locking
flange
pump
pump housing
locking cam
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
Application number
EP87112553A
Other languages
German (de)
French (fr)
Other versions
EP0260501A1 (en
Inventor
Norbert Dipl.-Ing.(Fh) Deutloff
Wolfgang Proppe
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT87112553T priority Critical patent/ATE51056T1/en
Publication of EP0260501A1 publication Critical patent/EP0260501A1/en
Application granted granted Critical
Publication of EP0260501B1 publication Critical patent/EP0260501B1/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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially 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
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/33—Retaining components in desired mutual position with a bayonet coupling

Definitions

  • the invention relates to an electric motor-driven pump according to the preamble of claim 1; such a pump is known from DE-OS 19 59 087.
  • a loosening of the twist lock between the pump housing and the drive motor is to be achieved by turning back the pump housing, e.g. when installing or due to shocks during transport or due to vibrations of the rubber hoses connected to the suction or discharge nozzle of the pump housing during the spin cycle of a washing machine equipped with the pump, can be avoided with simple, but safe-acting means.
  • the snap connection which can be easily inserted into the pump housing or into the motor-side flange, automatically locks into its closed position during the mutual assembly rotary movement between the drive motor and the pump housing and, due to its positive locking, reliably prevents the two connected components from being loosened by turning them back with the strongest shock or vibration loads.
  • each with flange-locking cams distributed over the circumference or corresponding edge-locking webs are in the sense of simple manufacture and at the same time space-saving attachment at least one latching opening or spring-loaded latching cams between two flange-locking cams or edge-locking webs adjacent on the circumference.
  • FIG. 1 shows an axial top view of the overall assembly of a drain pump driven by an electric motor 1, of which only part of the pump housing 3 is shown with its motor-side edge 4.
  • the pump housing 3 is arranged centrally to the electric motor 1 and connected to it by means of a bayonet lock, which is shown in FIG. 1 in its connection-closed position with a snap-in lock.
  • FIG. 3 shows the bayonet lock and snap lock before the actual closing rotary movement
  • FIG. 4 represents the bayonet and snap lock upon reaching the connection closed position after completion of the mutual rotary movement between the pump housing 3 and the drive motor 1.
  • the known bayonet lock essentially consists in the illustrated embodiment, on the one hand, of four flange locking brackets 21-24 distributed at a tangential distance over the circumference of the flange 2 of the drive motor 1, which in the connected closed position of the bayonet lock on the edge 4 of the pump housing 3 overlap radial edge sealing webs 41-44 claw-shaped.
  • FIG. 1 shows the connection-closed position of the bayonet and snap lock
  • FIG. 3 shows the two components of the drive motor 1 and the pump housing 3 lying axially opposite one another via the flange 2 and the edge 4, respectively, before the mutual rotary movement Represents closure of the bayonet and snap lock; accordingly, the edge sealing webs 41-44 lie in the circumferential direction between the flange locking brackets 21-24.
  • the two components of the drive motor 1, on the one hand, and the drain pump 3, on the other hand, which are to be connected to one another by the bayonet catch and on the other hand, are brought into the connection-closed position according to FIG.
  • Connection between the flange 2 of the drive motor 1 and the edge 4 of the pump housing 3 are integrally molded on the one hand on the edge 4 in one piece axially resiliently axially resilient against the flange 2, essentially tangential spring bar 45 with an axially projecting locking cam 46 and on the other hand in the flange 2 of the drive motor 1, a corresponding latching opening 25 is inserted.
  • 1, 2 and 4 each show the snap-in lock in which the locking cam 46 is automatically snapped into the locking opening 25 when the connection closed position is reached.
  • the automatic snap-in of the snap lock during the assembly rotary movement between the drive motor 1 and the pump housing 3 from the mutual contact position according to FIG. 3 in the connection-closed position according to FIG. 4 is facilitated in that both the locking cam 46 and that are provided with corresponding run-on bevels 26 and 48 by the locking cam 46 before the snap-in flange part.
  • the latching opening 25 is provided with such a radially open outlet that in a simple manner by radially outer insertion of a lever tool, e.g. a screwdriver blade between the locking cams 46 and its support on the flange 2 of the locking cams 46 can be pushed back out of the locking opening 25; an overextension of the spring bar 45 is advantageously prevented by a stop bar 47 which is also integrally molded in one piece at a correspondingly defined axial distance behind the spring bar 45.
  • a lever tool e.g. a screwdriver blade

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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

1. Electric motor-driven pump, in particular a washing liquid pump, with a bayonet connection between the pump housing (3) and driving motor (1) and a two-way locking catch in the joint closing position with the aid of at least one locking cam (46), snapping in a spring like manner into a locking opening (25), characterised by the following features : a) the locking opening (25) is provided in a flange (2) of the driving motor (1) ; b) the locking cam (46) is attached to a spring bar (45) preformed in one piece on the pump housing ; c) the locking cam (46) and/or the part of the flange (2) passed before the engagement is provided with a starting slope (26 or 48), d) the locking opening (25) has a radial projection, such that a lever instrument between the locking cam (46) and its support on the flange (2) is able to be inserted radially outwards in a reinforced manner and the locking cam (46) is able to be pressed back in the direction of a release of the locking connection.

Description

Die Erfindung bezieht sich auf eine elektromotorisch angetriebene Pumpe gemäß Oberbegriff des Anspruchs 1; eine derartige Pumpe ist durch die DE-OS 19 59 087 bekannt.The invention relates to an electric motor-driven pump according to the preamble of claim 1; such a pump is known from DE-OS 19 59 087.

Im bekannten Fall der US-A 3 407 739 wurden am Motorgehäuse randseitig angeformte radiale Stege von an das Pumprngehäuse angeformten Verschlußbügeln bein Betätigen des Bajonettverschlusses übergriffen; an die Stege ist jeweils mittig ein dachförmiger, gegen den Verschlussbügel vorstehender Rasrtnocken angeformt, der bei Erreichen der Verschlußstellung des Bajonettverschlusses in eine korrespondierende, den symmetrischen Außenmaßen des Rastnockens entsprechende Rastöffnung in dem übergreifenden Verschlußbügel einschnappen soll; dazu müssen die Verschlußbügel insgesamt eine hinreichende Elastizittät aufweisen.In the known case of US Pat. No. 3,407,739, radial webs formed on the edge of the motor housing were overlapped by locking brackets molded onto the pump housing when the bayonet lock was actuated; a roof-shaped ratchet cam protruding against the locking bracket is formed in the center of the webs, which should snap into a corresponding locking opening in the overlapping locking bracket when the bayonet lock has reached the locking position; for this purpose, the locking bracket must have sufficient elasticity overall.

Gemäß Aufgabe vorliegender Erfindung soll ein Lösen des Verdrehverschlusses zwischen Pumpengehäuse und Antriebsmotor, insbesondere eines Bajonettverschlusses zwischen dem Pumpengehäuse und dem Antriebsmotor einer Laugenpumpe, durch Rückdrehen des Pumpengehäuses, z.B. bei der Einbaumontage oder aufgrund von Stößen beim Transport oder aufgrund von Schwingungsbewegungen der an den Saug- bzw. Druckstutzen des Pumpengehäuses angeschlossenen Gummischläuche beim Schleudervorgang einer mit der Pumpe ausgerüsteten Waschmaschine, mit einfachen, doch sicher wirkenden Mitteln vermieden werden.According to the object of the present invention, a loosening of the twist lock between the pump housing and the drive motor, in particular a bayonet lock between the pump housing and the drive motor of a drain pump, is to be achieved by turning back the pump housing, e.g. when installing or due to shocks during transport or due to vibrations of the rubber hoses connected to the suction or discharge nozzle of the pump housing during the spin cycle of a washing machine equipped with the pump, can be avoided with simple, but safe-acting means.

Die Lösung dieser Aufgabe gelingt bei einer elektromotorisch angetriebenen Pumpe der eingangs genannten Art, insbesondere bei einer Pumpe mit Bajonettverschluß zwischen Pumpengehäuse und pumpenseitigem Flansch des angeflanschten Antriebsmotors, durch die Lehre des Patentanspruchs 1; vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand der Unteransprüche.This object is achieved in an electric motor-driven pump of the type mentioned, in particular in a pump with a bayonet lock between the pump housing and the pump-side flange of the flanged drive motor, by the teaching of claim 1; advantageous embodiments of the invention are the subject of the dependent claims.

Die auf einfache Weise an das Pumpengehäuse bzw. in den motorseitigen Flansch einzubringende Schnappverbindung rastet bei der gegenseitigen Montage-Drehbewegung zwischen Antriebsmotor und Pumpengehäuse in ihre Schließstellung selbsttätig ein und verhindert aufgrund ihrer Formschlüs.- sigkeit mit Sicherheit ein Lösen der beiden verbundenen Bauteile durch Rückdrehen selbst bei stärksten Stoß- bzw. Schwingungsbelastungen.The snap connection, which can be easily inserted into the pump housing or into the motor-side flange, automatically locks into its closed position during the mutual assembly rotary movement between the drive motor and the pump housing and, due to its positive locking, reliably prevents the two connected components from being loosened by turning them back with the strongest shock or vibration loads.

Bei einer Drehanschluß-Verbindung in Form eines Bajonett-Verschlusses zwischen pumpenseitigem Flansch des Antriebsmotors einerseits und motorseitigen Rand des Pumpengehäuses andererseits mit jeweils über den Umfang verteilten Flansch-Verschlußnocken bzw. korrespon dierenden Rand-Verschlußstegen sind im Sinne einer einfachen Herstellung und gleichzeitig platzsparenden Anbringung jeweils zumindest eine Rastöffnung bzw. einfedernde Rastnocken zwischen zwei am Umfang benachbarten Flansch-Verschlußnocken bzw. Rand-Verschlußstegen angebracht.With a rotary connection in the form of a bayonet lock between the pump-side flange of the drive motor on the one hand and the motor-side edge of the pump housing on the other hand, each with flange-locking cams distributed over the circumference or corresponding edge-locking webs are in the sense of simple manufacture and at the same time space-saving attachment at least one latching opening or spring-loaded latching cams between two flange-locking cams or edge-locking webs adjacent on the circumference.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung werden im folgenden anhand eines schematisch dargestellten Ausführungsbeispiels in der Zeichnung näher erläutert; darin zeigen:

  • Fig. 1 eine axiale Draufsicht auf das Gesamtaggregat einer durch einen Elektromotor angetriebenen Laugenpumpe;
  • Fig. 2 in einem Teilausschnitt aus Fig.1 den gegenseitigen Bajonett- und Rastverschluss zwischen Elektromotor und Laugenpumpe;
  • Fig. 3 ein Schnittbild gemäß Schnittverlauf IV-IV aus Fig.1, jedoch vor dem gegenseitigen Verdrehen von Pumpengehäuse einerseits und Antriebsmotor andererseits im Sinne eines gegenseitigen Bajonett-und Rastverschlusses;
  • Fig. 4 ein Schnittbild gemäß Schnittverlauf IV-IV aus Fig.1 nach dem gegenseitigen Verdrehen des Pumpengehäuses einerseits und des Antriebsmotors andererseits in die gegenseitige Verbindungs-Schließstellung.
The invention and further advantageous embodiments of the invention are explained in more detail below with reference to a schematically illustrated embodiment in the drawing; show in it:
  • Figure 1 is an axial plan view of the entire assembly of a drain pump driven by an electric motor.
  • 2 shows a partial section from FIG. 1, the mutual bayonet and snap lock between the electric motor and drain pump;
  • 3 shows a sectional view according to section IV-IV from FIG. 1, but before the mutual rotation of the pump housing on the one hand and the drive motor on the other hand in the sense of a mutual bayonet and snap lock;
  • Fig. 4 is a sectional view according to section IV-IV of Figure 1 after the mutual rotation of the pump housing on the one hand and the drive motor on the other hand in the mutual connection-closed position.

Fig.1 zeigt in einer axialen Draufsicht das Gesamtaggregat einer von einem Elektromotor 1 angetriebenen Laugenpumpe, von der hier nur ein Teil des Pumpengehäuses 3 mit seinem motorseitigen Rand 4 dargestellt ist. Das Pumpengehäuse 3 ist zentrisch zum Elektromotor 1 angeordnet und mit diesem über einen Bajonett-Verschluß verbunden, der in Fig.1 in seiner Verbindungs-Schließstellung mit eingeschnapptem Rastverschluß dargestellt ist.1 shows an axial top view of the overall assembly of a drain pump driven by an electric motor 1, of which only part of the pump housing 3 is shown with its motor-side edge 4. The pump housing 3 is arranged centrally to the electric motor 1 and connected to it by means of a bayonet lock, which is shown in FIG. 1 in its connection-closed position with a snap-in lock.

Zur näheren Erläuterung des Bajonett-Verschlusses mit erfindungsgemäßem einschnappbaren Rastverschluß wird auf die Detail-Vergrößerung gemäß Fig.2 sowie auf die Figuren 3,4 verwiesen, von denen Fig.3 den Bajonett-und Rastverschluß vor der eigentlichen Schließ-Drehbewegung und Fig.4 den Bajonett- und Rastverschluß bei Erreichen der Verbindungs-Schließstellung nach Beendigung der gegenseitigen Drehbewegung zwischen Pumpengehäuse 3 und Antriebsmotors 1 darstellt.For a more detailed explanation of the bayonet lock with a snap lock according to the invention, reference is made to the enlarged detail according to FIG. 2 and to FIGS. 3, 4, of which FIG. 3 shows the bayonet lock and snap lock before the actual closing rotary movement and FIG. 4 represents the bayonet and snap lock upon reaching the connection closed position after completion of the mutual rotary movement between the pump housing 3 and the drive motor 1.

Der an sich bekannte Bajonett-Verschluß besteht im dargestellten Ausführungsbeispiel im wesentlichen einerseits aus vier in tangentialem Abstand über den Umfang des Flansches 2 des Antriebsmotors 1 verteilten Flansch- Verschlußbügeln 21-24, die in der Verbindungs-Schließstellung des Bajonett-Verschlusses an den Rand 4 des Pumpengehäuses 3 angeformte radiale Rand-Verschlußstege 41-44 klauenförmig übergreifen.The known bayonet lock essentially consists in the illustrated embodiment, on the one hand, of four flange locking brackets 21-24 distributed at a tangential distance over the circumference of the flange 2 of the drive motor 1, which in the connected closed position of the bayonet lock on the edge 4 of the pump housing 3 overlap radial edge sealing webs 41-44 claw-shaped.

Fig.1,2 und 4 zeigen die Verbindungs-Schließstellung des Bajonett- und Rastverschlusses, während Fig.3 die beiden axial über den Flansch 2 bzw. den Rand 4 gegeneinander liegenden Bauteile des Antriebsmotors 1 bzw. des Pumpengehäuses 3 vor der gegenseitigen Drehbewegung zum Verschluß des Bajonett- und Rastverschlusses darstellt; dementsprechend liegen gemäß Fig.3 die Rand-Verschlußstege 41-44 in Umfangsrichtung jeweils zwischen den Flansch-Verschlußbügeln 21-24. Durch eine Drehbewegung in Richtung des in Fig.3 eingezeichneten Drehrichtungspfeiles werden dann die beiden gegeneinander durch den Bajonett-Verschluß zu verbindenden Bauteile des Antriebsmotors 1 einerseits und der Laugenpumpe 3 andererseits in die Verbindungs-Schließstellung gemäß Fig.4 gebracht.1, 2 and 4 show the connection-closed position of the bayonet and snap lock, while FIG. 3 shows the two components of the drive motor 1 and the pump housing 3 lying axially opposite one another via the flange 2 and the edge 4, respectively, before the mutual rotary movement Represents closure of the bayonet and snap lock; accordingly, the edge sealing webs 41-44 lie in the circumferential direction between the flange locking brackets 21-24. The two components of the drive motor 1, on the one hand, and the drain pump 3, on the other hand, which are to be connected to one another by the bayonet catch and on the other hand, are brought into the connection-closed position according to FIG.

Zur erfindungsgemäßen formschlüssigen Rastverbindung zwischen dem Flansch 2 des Antriebsmotors 1 und dem Rand 4 des Pumpengehäuses 3 sind einerseits an den Rand 4 einstückig ein axial gegen den Flansch 2 federnder, im wesentlichen tangential verlaufender Federsteg 45 mit einem axial vorstehenden Rastnocken 46 einstückig mitangegossen und andererseits in den Flansch 2 des Antriebsmotors 1 eine korrespondierende Rastöffnung 25 eingelassen.For positive locking according to the invention Connection between the flange 2 of the drive motor 1 and the edge 4 of the pump housing 3 are integrally molded on the one hand on the edge 4 in one piece axially resiliently axially resilient against the flange 2, essentially tangential spring bar 45 with an axially projecting locking cam 46 and on the other hand in the flange 2 of the drive motor 1, a corresponding latching opening 25 is inserted.

Fig.1,2 und 4 zeigen den jeweils eingeschnappten Rastverschluß, bei dem der Rastnocken 46 selbsttätig bei Erreichen der Verbindungs-Schließstellung in die Rastöffnung 25 eingeschnappt ist. Das selbsttätige Einschnappen des Rastverschlusses bei der Montage-Drehbewegung zwi schen dem Antriebsmotor 1 und dem Pumpengehäuse 3 aus der gegenseitigen Anlage-Stellung gemäß Fig.3 in die Verbindungs-Schließstellung gemäß Fig.4 wird dadurch erleichtert, daß sowohl der Rastnocken 46 als auch das vom Rastnocken 46 vor dem Einrasten bestrichene Flanschteil mit korrespondierenden Anlaufschrägen 26 bzw. 48 versehen sind.1, 2 and 4 each show the snap-in lock in which the locking cam 46 is automatically snapped into the locking opening 25 when the connection closed position is reached. The automatic snap-in of the snap lock during the assembly rotary movement between the drive motor 1 and the pump housing 3 from the mutual contact position according to FIG. 3 in the connection-closed position according to FIG. 4 is facilitated in that both the locking cam 46 and that are provided with corresponding run-on bevels 26 and 48 by the locking cam 46 before the snap-in flange part.

Wie aus Fig.1 ersichtlich, ist die Rastöffnung 25 mit einem derartigen radial offenen Auslauf versehen, daß auf einfache Weise durch radiales äußeres Einführen eines Hebelwerkzeuges, z.B. einer Schraubenzieherklinge, zwischen den Rastnocken 46 und dessen Auflage am Flansch 2 der Rastnocken 46 aus der Rastöffnung 25 zurückdrückbar ist; eine Überdehnung des Federsteges 45 wird dabei in vorteilhafter Weise durch einen im entsprechend festgelegten axialen Abstand hinter dem Federsteg 45 zweckmäßigerweise ebenfalls einstückig angespritzten Anschlagsteg 47 verhindert.As can be seen from Figure 1, the latching opening 25 is provided with such a radially open outlet that in a simple manner by radially outer insertion of a lever tool, e.g. a screwdriver blade between the locking cams 46 and its support on the flange 2 of the locking cams 46 can be pushed back out of the locking opening 25; an overextension of the spring bar 45 is advantageously prevented by a stop bar 47 which is also integrally molded in one piece at a correspondingly defined axial distance behind the spring bar 45.

Claims (3)

1. Electric motor-driven pump, in particular a washing liquid pump, with a bayonet connection between the pump housing (3) and driving motor (1) and a two-way locking catch in the joint closing position with the aid of at least one locking cam (46), snapping in a spring like manner into a locking opening (25), characterised by the following features:
a) the locking opening (25) is provided in a flange (2) of the driving motor (1);
b) the locking cam (46) is attached to a spring bar (45) preformed in one piece on the pump housing;
c) the locking cam (46) and/or the part of the flange (2) passed before the engagement is provided with a starting slope (26 or 48),
d) the locking opening (25) has a radial projection, such that a lever instrument between the locking cam (46) and its support on the flange (2) is able to be inserted radially outwards in a reinforced manner and the locking cam (46) is able to be pressed back in the direction of a release of the locking connection.
2. Electric motor-driven pump with a bayonet connection between the pump-side flange of the driving motor, on the one hand, and the motor-side edge of the pump housing, on the other hand, with in each case catch dips, distributed over the periphery, on the flange (2) of the driving motor (1) or corresponding catch bars (41, 42) overlapped by these on the edge (4) of the pump housing (3) according to claim 1, characterised in that in each case at least one locking opening (25) or a spring locking cam (45, 46) is provided between two flange-catch clips (21, 22) or edge-catch clips (41, 42) adjacent on the periphery.
3. Electric motor-driven pump according to claim 1 or 2, characterised by an impact bar (47) preformed in one piece on the pump housing axially spaced behind the spring bar (45) for restricting the disengaging path of the spring bar (45) or the locking cam (45).
EP87112553A 1986-09-12 1987-08-28 Pump driven by an electromotor Expired - Lifetime EP0260501B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112553T ATE51056T1 (en) 1986-09-12 1987-08-28 ELECTRIC MOTOR DRIVEN PUMP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631114 1986-09-12
DE3631114 1986-09-12

Publications (2)

Publication Number Publication Date
EP0260501A1 EP0260501A1 (en) 1988-03-23
EP0260501B1 true EP0260501B1 (en) 1990-03-14

Family

ID=6309466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112553A Expired - Lifetime EP0260501B1 (en) 1986-09-12 1987-08-28 Pump driven by an electromotor

Country Status (3)

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EP (1) EP0260501B1 (en)
AT (1) ATE51056T1 (en)
DE (1) DE3761917D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19927896C2 (en) * 1998-10-15 2001-07-05 Abbas Mohadjer Coupling ring for a drain pump housing

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Publication number Priority date Publication date Assignee Title
US5049770A (en) * 1990-03-26 1991-09-17 General Motors Corporation Electric motor-driven impeller-type air pump
DE4122487C2 (en) * 1991-07-06 1997-09-18 Grundfos Int Conveyor unit from a fluid flow machine and a drive motor
US5232341A (en) * 1991-10-08 1993-08-03 General Motors Corporation Pump impeller assembly
DE4304945A1 (en) * 1993-02-19 1994-08-25 Ulli Weinberg Electrically driven liquid pump
KR20060035086A (en) 2004-10-21 2006-04-26 엘지전자 주식회사 Dish washer
JP5372267B2 (en) * 2011-02-10 2013-12-18 三菱重工業株式会社 Pump structure
DE102022104172A1 (en) 2022-02-22 2023-08-24 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Fluid power device

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Publication number Priority date Publication date Assignee Title
US1767187A (en) * 1929-01-09 1930-06-24 Eaton Axle And Spring Company Closure
US2153073A (en) * 1935-12-03 1939-04-04 Chobert Jacques Franco Gabriel Inspection door and like closure
US3091358A (en) * 1960-12-20 1963-05-28 Airaterra Closure
US3407739A (en) * 1966-02-15 1968-10-29 Champion Cooler Corp Pumps and pump housing and motor unit
BE795713A (en) * 1972-03-09 1973-06-18 Draegerwerk Ag LOCKABLE BAY CLOSURE WITH PRESSURE CHAMBER EQUIPPED WITH A HORN DEVICE
AT343258B (en) * 1975-10-22 1978-05-26 Lorch & Co Kg J COMPRESSED AIR PURIFICATION DEVICE IN THE FORM OF OLVERNEBLER, PRESSURE REGULATOR, SEPARATOR, etc.
FR2432106A1 (en) * 1978-07-25 1980-02-22 Leroy Somer Moteurs Centrifugal pump with plastics casing - has ring clamp locating tongues and grooves to fix casing half shells together

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19927896C2 (en) * 1998-10-15 2001-07-05 Abbas Mohadjer Coupling ring for a drain pump housing

Also Published As

Publication number Publication date
DE3761917D1 (en) 1990-04-19
ATE51056T1 (en) 1990-03-15
EP0260501A1 (en) 1988-03-23

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