EP1312803B1 - Pompe automatique - Google Patents

Pompe automatique Download PDF

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Publication number
EP1312803B1
EP1312803B1 EP02016058A EP02016058A EP1312803B1 EP 1312803 B1 EP1312803 B1 EP 1312803B1 EP 02016058 A EP02016058 A EP 02016058A EP 02016058 A EP02016058 A EP 02016058A EP 1312803 B1 EP1312803 B1 EP 1312803B1
Authority
EP
European Patent Office
Prior art keywords
valve
outlet pipe
automatic pump
face
magnet
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
EP02016058A
Other languages
German (de)
English (en)
Other versions
EP1312803A3 (fr
EP1312803A2 (fr
Inventor
Hun Woo Lee
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.)
Wilo SE
Original Assignee
Wilo 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 Wilo AG filed Critical Wilo AG
Publication of EP1312803A2 publication Critical patent/EP1312803A2/fr
Publication of EP1312803A3 publication Critical patent/EP1312803A3/fr
Application granted granted Critical
Publication of EP1312803B1 publication Critical patent/EP1312803B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps

Definitions

  • the present invention relates to an automatic pump, in particular to an automatic pump with an improved valve construction which can open / close a fluid channel in a pump and at the same time can switch the pump on / off depending on the presence of a fluid flow in the fluid channel.
  • a pump is an apparatus for transporting fluid through the operation of an engine.
  • an automatic pump the flow of the fluid is controlled automatically.
  • a conventional automatic pump will be described, for example Patent GB 1,184,650 is known.
  • Fig. 1 is a partially cutaway side view of a conventional automatic pump schematically showing its construction.
  • a pump comprises a housing 10 containing an impeller 11 and in which a fluid channel is formed.
  • the fluid passage in the housing 10 is connected to an inlet pipe 13a and an outlet pipe 13b through which fluid is sucked and discharged, respectively.
  • the impeller 11 is rotated by a motor 15 and causes the suction of the fluid through the inlet pipe 13 a and the ejection of the fluid through the outlet tube 13b.
  • a valve 21 is disposed at one end of the fluid passage of the housing 10 on the exhaust pipe 13b side.
  • valve 21 The function of the valve 21 will be described below.
  • valve 21 In the conventional automatic pump of the above-described construction, the valve 21 must be in an upright position because the valve 21 is lowered by its own weight. This is necessarily a directional restriction in the installation of the conventional automatic pump connected.
  • the present invention aims to solve the aforementioned problems associated with the prior art are to be solved, and an object of the present invention is an automatic pump that can be installed independently of the direction.
  • an automatic pump comprising: a housing made of metal, in which a fluid channel is formed with a first end and a second end, wherein the first end is connected to an inlet tube, which is connected to a water source, and the second end is connected to an outlet tube which is connected to a consumer side, and wherein the housing has a control mechanism on one side of the housing; an impeller disposed in the housing, which sucks fluid through the inlet tube and expels through the outlet tube; a motor arranged outside the housing, which rotates the impeller in accordance with the control unit; a guide member disposed at a portion of the fluid passage of the housing in the vicinity of the outlet pipe; a valve into which the guide member is inserted so that the guide member can be reciprocated linearly through the valve, the valve having a first end side to which pressure in the inlet pipe acts and a second end side to which Pressure in the outlet tube acts, and the valve is moved by the pressure difference between the inlet tube and the outlet tube linearly in
  • Fig. 2 is a partially cutaway side view of an automatic pump according to a preferred embodiment of the present invention, schematically showing its construction;
  • Fig. 3 is an exploded view of a guide member and a valve used in the automatic pump of Fig. 2;
  • Figures 4a and 4b are enlarged views of a cross section of a valve to illustrate the function of the automatic pump of Figure 2;
  • an automatic pump 100 comprises a housing 110 made of a magnetically conductive material, such as metal, in which a fluid channel 111 is formed.
  • a fluid channel 111 is formed.
  • One end of the fluid channel 111 of the housing 110 is connected to an inlet tube 113 which is connected to a water source, while the other end of the fluid channel 111 of the housing 110 is connected to an outlet tube 115 which is connected to a consumer side.
  • an impeller 121 is disposed in the housing 110, and outside the housing 110, a motor 125 for rotating the impeller 121 is disposed. The impeller 121 sucks fluid through the inlet pipe 113 and ejects it through the outlet pipe 115.
  • a seat groove 117 is formed with a step 117a, and in a portion of the housing 110 opposite to the seat groove 117, a valve actuating hole 119 is formed.
  • the valve actuating opening 119 is oriented towards the motor 125 and an outer cover 160, which will be described later.
  • a guide member 130 comprising a base 131, a foot 133, a guide rod 135, a contact piece 137 and a contact ring 139.
  • the base is disc-shaped and is in the step 117a of the seat groove 117 is inserted, and the leg 133 extends from a surface of the base 131 so as to abut against a bottom surface 117b of the seat groove 117.
  • the guide rod 135 extends from a central portion of the other surface of the base 131 through the valve operating hole 119, and the contact piece 137 extends from an upper half of a circumference of the other surface of the base 131. That is, the contact piece 137 has a semi-cylindrical shape Has.
  • a first inclined surface 137a of the contact piece 137 is disposed at a predetermined distance from the base 131 and inclined at a predetermined inclination to have a semi-ellipsoidal shape.
  • the first inclined surface 137a of the contact piece 137 is arranged so as to abut against a valve 140, which will be described later.
  • the contact ring 139 extends from the contact piece 137 in such a manner that a second inclined surface 139a of the contact ring 139 is also inclined at the same inclination as the first inclined surface 137a.
  • the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 are formed to be in the same plane so that the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 together form an ellipsoidal shape.
  • the second inclined surface 139a of the contact ring 139 is also arranged to be in contact with the valve 140, which will be described later.
  • the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 separate the inlet tube 113 and the outlet tube 115 from each other when they abut against the valve 140. A more detailed description of this function is given below.
  • the guide rod 135 is inserted into a valve through-hole 141 formed through the valve 140, which has a cylindrical shape, so that the valve 140 can be reciprocated along the guide rod 135.
  • the Guide rod 135 and the valve through-hole 141 have the same ellipsoidal cross-section, so that the valve 140 is not rotated, but can perform a linear reciprocating motion.
  • an inclined valve surface 145 is formed, which corresponds to the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139.
  • a first space 113a is thus formed between the base 131 and a first end side 142 of the valve 140, to which Hydraulic pressure in the inlet pipe 113 acts, and formed between a second end side 143 of the valve 140 and a valve cover 150 described below, a second space 115 on which the hydraulic pressure in the outlet pipe 115 acts.
  • the valve cover 150 which is made of a non-magnetic conductive material such as plastic, is fixed over the valve operating opening 119 of the housing 110.
  • the valve cover 150 conceals the second end side 143 of the valve 140 and an end of the guide rod 135 that extends through the valve 140 and is exposed to the outside of the housing 110.
  • the second space 115 a into which the fluid is introduced from the outlet pipe 115, is defined between the valve cover 150 and the second end side 143 of the valve 140.
  • the outer cover 160 is mounted to a portion of the housing 110 which is disposed outside of the valve cover 150, and in the outer cover 160, a control unit 163 is arranged.
  • the Control unit 163 includes a cable terminal section 164, a plurality of electrical cables 163, and a leaf spring switch 166.
  • the leaf spring switch 166 is disposed near the valve cover 150 and is turned on / off. This process will be described later.
  • the automatic pump includes a first means for turning on and off the leaf spring switch 166.
  • the first means forces the valve 140 to move linearly so that the valve 140 abuts against the contact piece 137 and the contact ring 139 of the guide member 130 when no fluid is expelled through the outlet tube 115.
  • the first means is a first magnet 171 disposed on the second end side 143 of the valve 140 and moving in the same manner as the valve 140.
  • valve 140 the operation of the valve 140 and the first means will be described in detail with reference to Figs. 4a and 4b.
  • the valve 140 changes its attraction force between the first magnet 171 disposed on the valve 140 and the housing 110 made of a magnetically conductive material State from that shown in Fig. 4b to the state shown in Fig. 4a. That is, the valve 140 moves to the contact piece 137 and the contact ring 139 of the guide member 130, so that the inclined valve surface 145 of the valve 140 on the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 of the guide member 130th is applied. Then, the inlet pipe 113 and the outlet pipe 115 are separated from each other, and at the same time, the leaf spring switch 166 is turned off to stop the operation of the engine 125.
  • the second end side 143 has a larger area than the first end side 142.
  • the automatic pump 100 is constructed so that when the valve 140 and the guide member 130 abut each other, the second end side 143 of the valve 140 is located in the valve operating hole 119, so that the valve is easy to operate.
  • the housing 110 has chamfered flat corners 110a and 110b which are disposed at the same inclination with respect to the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 of the guide member 130.
  • the opposing arrangement of the flat corners 110a and 110b with the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 of the guide member 130 minimizes the resistance of the fluid and thus maximizes the amount of fluid drawn and expelled.
  • the inclined valve surface 145 of the valve 140 is at the same inclination as the first inclined surface 137a of FIG Contact piece 137 and the second inclined surface 139 a of the contact ring 139 executed so that they can be close to each other.
  • valve 140 can be positioned without directional restriction. This means that the valve 140 can be installed in the vertical, horizontal or oblique direction.
  • Numeral 155 in Fig. 2 which has not been described in detail above, denotes an O-ring.
  • Figs. 5a and 5b are enlarged views of a cross section of a valve used in an automatic pump according to another embodiment of the present invention, and illustrate the construction and operation of the automatic pump. In the following, only the difference between the present embodiment and the first embodiment will be described.
  • An elastic member 181 such as a spring is disposed between the valve cover 150 and the second end side 143 of the valve 140.
  • the elastic member 181 forces the valve 140 to move linearly so that the valve inclined surface 145 of the valve 140 abuts the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 of the guide member 130 is applied.
  • the elastic member 181 further elastically supports the valve 140 in such a manner that the inclined valve surface 145 of the valve 140 tightly abuts against the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the contact ring 139 of the guide member 130.
  • Figs. 6a and 6b are enlarged views of a cross section of a valve used in an automatic pump according to another embodiment of the present invention, and illustrate the construction and operation of the automatic pump. In the following, only the difference between the present embodiment and the first embodiment will be described.
  • a second magnet 185 a is disposed near the first end side 142 of the valve 140, and a third magnet 185 b is disposed in the leg 133 of the guide member 130.
  • the second magnet 185a and the third magnet 185b are arranged so that their opposite polarities are arranged side by side so that an attractive force acts between the magnets.
  • the second magnet 185a and the third magnet 185b cooperate to force the valve 140 to move linearly so that the inclined valve surface 145 of the valve 140 contacts the first inclined surface 137a of the contact piece 137 and the second inclined surface 139a of the valve Contact ring 139 of the guide member 130 is applied when no fluid is ejected through the outlet tube 115.
  • the second magnet 185a and the third magnet 185b further support the valve in such a manner that the inclined valve surface 145 of the valve 140 tightly abuts against the first inclined surface 137a of the contact piece 137 and the inclined surface 139a of the contact ring 139 of the guide member 130.
  • a valve for connecting / disconnecting an intake pipe and an exhaust pipe can be forcibly returned to its original position.
  • the valve can be arranged in any direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Claims (10)

  1. Pompe automatique, comportant :
    un carter (110) constitué de métal, dans lequel est formé un canal fluidique (111) doté d'une première extrémité et d'une deuxième extrémité, moyennant quoi la première extrémité est reliée à un tuyau d'admission (113) qui est raccordé à une source hydraulique, et la deuxième extrémité est reliée à un tuyau d'évacuation (115) qui est raccordé à l'utilisateur, moyennant quoi le carter présente un organe de commande sur un coté du carter ;
    un rotor (121) disposé dans le carter, qui aspire le fluide au travers du tuyau d'admission et expulse le fluide au travers du tuyau d'évacuation ;
    un moteur (125) disposé en dehors du carter, qui fait tourner le rotor en fonction des indications de l'organe de commande ; caractérisé en ce qu'il présente :
    un élément de guidage (130), qui est disposé sur une section du canal fluidique du carter à proximité du tuyau d'évacuation ;
    une soupape (140) dans laquelle est inséré l'élément de guidage de telle sorte que l'élément de guidage (130) peut effectuer un mouvement de va-et-vient dans la direction linéaire au travers de la soupape, moyennant quoi la soupape présente un premier côté d'extrémité (142) sur lequel s'exerce la pression existant dans le tuyau d'admission (113) et un deuxième côté d'extrémité (143) sur lequel s'exerce la pression existant dans le tuyau d'évacuation (115), et la soupape est amenée à se déplacer de manière linéaire en direction du deuxième côté d'extrémité (143) de la soupape du fait de la différence de pression existant entre le tuyau d'admission et le tuyau d'évacuation, moyennant quoi le tuyau d'admission (113) et le tuyau d'évacuation (115) sont reliés l'un à l'autre lorsque le fluide est expulsé au travers du tuyau d'évacuation, et la soupape repose sur l'élément de guidage (130) et le tuyau d'admission et le tuyau d'évacuation sont alors séparés lorsque aucun fluide n'est expulsé au travers du tuyau d'évacuation ;
    et un premier moyen (171) permettant d'activer et de désactiver l'organe de commande, moyennant quoi le premier moyen force la soupape à effectuer un mouvement linéaire de telle sorte que la soupape repose sur l'élément de guidage (130) lorsque aucun fluide n'est expulsé au travers du tuyau d'évacuation.
  2. Pompe automatique selon la revendication 1, caractérisée en ce que le carter comporte un renfoncement d'ajustement avec un palier sur lequel repose l'élément de guidage et, dans une section du carter par rapport au renfoncement d'ajustement est formée une ouverture d'actionnement de la soupape, et l'élément de guidage comporte une base, un socle, une barre de guidage, une pièce de contact et une bague de contact, moyennant quoi la base est circulaire et est insérée dans le palier du renfoncement d'ajustement, et le socle s'étend à partir d'une première surface de la base de telle sorte qu'il repose sur une surface de fond du renfoncement d'ajustement et la barre de guidage s'étend à partir d'une section médiane de l'autre surface de la base au travers de l'ouverture d'actionnement de la soupape et tout au long de la soupape, et la pièce de contact s'étend à partir d'une moitié supérieure de la périphérie d'une deuxième surface de la base, moyennant quoi la pièce de contact permet de former un premier espace entre la base et un premier côté d'extrémité de la soupape, dans lequel espace le fluide est introduit dans le tuyau d'admission, et la bague de contact s'étend à partir de la pièce de contact, moyennant quoi le tuyau d'admission ou le tuyau d'évacuation sont séparés l'un de l'autre lorsque la pièce de contact et la bague de contact reposent sur une surface cylindrique externe de la soupape, et la soupape a une longueur telle que le deuxième côté d'extrémité de la soupape est disposé dans l'ouverture d'actionnement de la soupape lorsque la pièce de contact et la bague de contact reposent sur une surface cylindrique externe de la soupape, et l'ouverture d'actionnement de la soupape est recouverte par un chapeau de soupape qui est fabriqué dans un matériau qui n'est pas un conducteur magnétique, et qui recouvre le deuxième côté d'extrémité de la soupape et une extrémité de la barre de guidage passant au travers de la soupape, moyennant quoi le chapeau de soupape permet que, entre le chapeau de soupape et le deuxième côté d'extrémité de la soupape soit défini un deuxième espace dans lequel est introduit le fluide issu du tuyau d'évacuation 115.
  3. Pompe automatique selon la revendication 2, caractérisée en ce que la pièce de contact comporte une première surface oblique et la bague de contact comporte une deuxième surface oblique, et la soupape présente une surface de soupape oblique autour de la soupape, moyennant quoi la première surface oblique et la deuxième surface oblique présentent la même inclinaison, et moyennant quoi la pièce de contact et la bague de contact sont regroupées en une pièce et disposées dans le même plan de telle sorte que la première surface oblique de la pièce de contact et la deuxième surface oblique de la bague de contact forment conjointement une forme elliptique, moyennant quoi la surface de soupape oblique a une inclinaison qui est identique à l'inclinaison de la première surface oblique et à la deuxième surface oblique, de telle sorte que la surface de soupape oblique peut être largement adjacente à la première surface oblique et à la deuxième surface oblique.
  4. Pompe automatique selon la revendication 2, caractérisée en ce que le carter comporte des coins plats chanfreinés, qui sont disposés selon la même inclinaison par rapport à la première surface oblique de la pièce de contact et à la deuxième surface oblique de la bague de contact.
  5. Pompe automatique selon la revendication 2, caractérisée en ce que la barre de guidage a une section elliptique.
  6. Pompe automatique selon la revendication 2, caractérisée en ce que l'organe de commande comporte un commutateur à ressort à lames qui est disposé à proximité du chapeau de soupape, et le premier moyen comporte un premier aimant sur le deuxième côté d'extrémité de la soupape, et le premier aimant active et désactive le commutateur à ressort à lames, moyennant quoi le premier aimant est attiré par le carter.
  7. Pompe automatique selon la revendication 6, comportant en outre un deuxième moyen permettant de forcer la soupape à effectuer un mouvement linéaire de telle sorte que la soupape repose sur l'élément de guidage lorsque aucun fluide n'est expulsé au travers du tuyau d'évacuation.
  8. Pompe automatique selon la revendication 7, caractérisée en ce que le deuxième moyen comporte un élément élastique qui est disposé entre le chapeau de soupape et le deuxième côté d'extrémité de la soupape.
  9. Pompe automatique selon la revendication 7, caractérisée en ce que le deuxième moyen comporte un deuxième aimant et un troisième aimant, moyennant quoi le deuxième aimant est disposé sur le premier côté d'extrémité de la soupape et le troisième aimant est disposé sur l'élément de guidage, moyennant quoi le deuxième aimant et le troisième aimant sont disposés de telle sorte que leurs polarités opposées sont disposées l'une à côté de l'autre, de telle manière qu'une force d'attraction s'exerce entre le deuxième aimant et le troisième aimant.
  10. Pompe automatique selon la revendication 2, caractérisée en ce que le premier côté d'extrémité de la soupape a une surface qui est plus petite que la surface du deuxième côté d'extrémité de la soupape.
EP02016058A 2001-11-15 2002-07-19 Pompe automatique Expired - Lifetime EP1312803B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2001070973 2001-11-15
KR10-2001-0070973A KR100411513B1 (ko) 2001-11-15 2001-11-15 자동펌프

Publications (3)

Publication Number Publication Date
EP1312803A2 EP1312803A2 (fr) 2003-05-21
EP1312803A3 EP1312803A3 (fr) 2004-01-21
EP1312803B1 true EP1312803B1 (fr) 2007-10-17

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Family Applications (1)

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EP02016058A Expired - Lifetime EP1312803B1 (fr) 2001-11-15 2002-07-19 Pompe automatique

Country Status (4)

Country Link
EP (1) EP1312803B1 (fr)
KR (1) KR100411513B1 (fr)
CN (1) CN2566017Y (fr)
DE (1) DE50211077D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100583402B1 (ko) * 2005-01-14 2006-05-26 윌로펌프 주식회사 자동펌프
KR100764855B1 (ko) * 2006-05-18 2007-10-09 윌로펌프 주식회사 자동펌프
EP2299084A1 (fr) * 2009-09-16 2011-03-23 Pierburg Pump Technology GmbH Pompe de refroidissement
KR101128258B1 (ko) 2009-10-13 2012-03-23 윌로펌프 주식회사 자동펌프
CN110285078B (zh) * 2019-07-23 2024-06-25 浙江耀达智能科技股份有限公司 一种水泵控制器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH183756A (de) * 1935-10-17 1936-04-30 Sulzer Ag Steuerungseinrichtung mit Servomotor zum selbsttätigen Steuern eines in einer Druckleitung, insbesondere in einer langen Zentrifugalpumpen-Druckleitung angeordneten Abschlussorganes in Abhängigkeit von dem in der Druckleitung herrschenden Druck.
GB1184650A (en) * 1966-03-04 1970-03-18 Lucas Industries Ltd Liquid Pumps.
JPS56154185A (en) * 1980-04-28 1981-11-28 Hitachi Ltd Capacity controller for compressor
JPS60111088A (ja) * 1983-11-18 1985-06-17 Sanyo Electric Co Ltd 自動式ポンプ
JPH07145874A (ja) * 1993-11-25 1995-06-06 Matsushita Electric Works Ltd 排気装置
IT1268937B1 (it) * 1994-01-14 1997-03-18 Co Ge S R L Dispositivo per il comando di un impianto di distribuzione d'acqua
DE4438705A1 (de) * 1994-10-29 1996-05-02 Wolfgang Kube Selbsttätig arbeitende Absperrarmatur für Kreiselpumpen
KR100197690B1 (ko) * 1995-07-26 1999-06-15 윤종용 냉장고의 물분배기
US6752168B1 (en) * 1999-11-10 2004-06-22 Aker Maritime Asa System for controlling the working conditions for mechanical pumps, and a regulation valve for such a system
KR100372321B1 (ko) * 2000-04-14 2003-02-17 박헌우 영구자석을 이용한 차압밸브

Also Published As

Publication number Publication date
EP1312803A3 (fr) 2004-01-21
CN2566017Y (zh) 2003-08-13
DE50211077D1 (de) 2007-12-06
KR100411513B1 (ko) 2003-12-18
EP1312803A2 (fr) 2003-05-21
KR20020001682A (ko) 2002-01-09

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