EP0043939A1 - Pompe doseuse électromagnétique - Google Patents

Pompe doseuse électromagnétique Download PDF

Info

Publication number
EP0043939A1
EP0043939A1 EP81104718A EP81104718A EP0043939A1 EP 0043939 A1 EP0043939 A1 EP 0043939A1 EP 81104718 A EP81104718 A EP 81104718A EP 81104718 A EP81104718 A EP 81104718A EP 0043939 A1 EP0043939 A1 EP 0043939A1
Authority
EP
European Patent Office
Prior art keywords
handwheel
bearing
axis
pump according
armature
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
EP81104718A
Other languages
German (de)
English (en)
Other versions
EP0043939B1 (fr
Inventor
Rudi Siller
Hermann Steil
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.)
Cillichemie Ernst Vogelmann GmbH and Co
Original Assignee
Cillichemie Ernst Vogelmann GmbH and Co
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 Cillichemie Ernst Vogelmann GmbH and Co filed Critical Cillichemie Ernst Vogelmann GmbH and Co
Publication of EP0043939A1 publication Critical patent/EP0043939A1/fr
Application granted granted Critical
Publication of EP0043939B1 publication Critical patent/EP0043939B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow

Definitions

  • the invention relates to a magnetic metering pump of the type specified in the preamble of claim 1. Dosing pumps of this type are primarily intended to add precisely measured amounts of water to an active substance liquid.
  • a magnetic metering pump of this type is known (DE-GM 71 19 904), in which the stroke adjustment is carried out via a handwheel guided in a thread fixed to the housing.
  • the thread only forms a linear system and thus leaves something to be desired in terms of susceptibility to wear and setting accuracy, especially after high continuous loads.
  • the armature which is designed as a cylindrical DC armature, is guided within the stationary part of the magnet in a structurally quite complex PFTE lead plain bearing with a relatively large diameter, and that the return spring is also arranged in a lubricated chamber and hardened on the inside Ring is guided so that it can be supported on the fixed part of the magnet.
  • the known magnet On the diaphragm side, the known magnet is flanged to a metal mounting plate, which is part of the housing that also contains the control electronics. Thereby the heat dissipation from the magnet, which heats up strongly during operation, is promoted into the housing, as a result of which the electronics in the housing heat up undesirably, which can lead to malfunctions.
  • the invention is accordingly based on the object to improve the known solenoid metering pump of the type specified in the preamble of claim 1 in such a way that a constant, precise stroke setting is ensured even under continuous loads, and that the susceptibility to malfunctions caused by wear and tear and the undesired heating of electronic components is reduced .
  • the precautions according to the invention ensure, due to the large-area contact surfaces provided in the stroke adjustment mechanism and the relatively simple, low-wear mounting of the magnet armature and the return spring, that they are less susceptible to wear and that the stroke setting is permanently good. Because of the special Arranging the stroke adjustment mechanism in an intermediate area between the lifting magnet and the control electronics ensures a good thermal separation between these parts, which prevents undesired heating of the electronic components.
  • the latter can be further improved in that the magnet yoke and the magnet armature each consist of a laminated core held together by rivets despite pulsed direct current operation in the manner of an alternating current magnet, and that the magnet yoke carries a cooling body provided with cooling fins on its outer surface.
  • the solenoid metering pump consists of a lifting magnet 12 carrying a finned heat sink 10, a pump part 14 located on the rear of the lifting magnet, a stroke adjusting mechanism 16 arranged on the front of the lifting magnet and control electronics 22 arranged in a housing part 20 'separated by a partition 18 from the stroke adjusting mechanism
  • the stroke magnet 12 can be acted upon by a pulsed direct current via the control electronics 22, so that a pump stroke is triggered with each current pulse.
  • the plastic housing 20 is screwed onto the heat sink 10 with a housing extension 20 ′′ that extends over the stroke adjustment mechanism 16.
  • the stroke frequency set on the rotary knob 26, the pump stroke set on the handwheel 28 and the frequency and level indicators signaled by light-emitting diodes 30 can be seen from the outside through a transparent hinged cover 24 located on the housing 20. After the hinged cover 24 has been folded up against the force of the two tension springs 32, for which purpose a seal 34 may first have to be released, the rotary knob 26 and the handwheel 28 are accessible from the outside for adjusting the stroke frequency and the pump stroke.
  • the stroke rate is automatically controlled in accordance with the output from a water meter signals via the control electronics, so that an F requenzeingnagna is dispensable from the outside and thus the knob is omitted 26th
  • a pushbutton switch is provided in this case, with which a pumping process can be triggered manually for testing purposes.
  • the magnetic metering pump is fixed to the wall by means of a mounting bracket 36, which can be clamped to the ribs 40 of the heat sink 10 with suitable strap shoes 38 made of a vibration-damping rubber-elastic material and can be locked with the aid of a wire strap 42 against accidental sliding out of the heat sink to the rear.
  • the lifting magnet 12 consists of a U-shaped magnet yoke 46 located in a cup-shaped recess 44 of the cooling body 10 designed as a yoke housing, a magnet coil 48 fastened to the magnet yoke with the aid of a casting resin, and a T-shaped one Armature 50.
  • the aluminum heat sink is shrunk onto the magnetic yoke using the die-casting process, so that good heat transfer is ensured.
  • the magnetic yoke 46 and the armature 50 exist according to Art of an alternating current magnet from a laminated core held together with rivets. Especially for larger quantities it can o be sten endedn.vorteilhaft to produce the yoke and armature of a pultruded or sintered magnetizable material from K.
  • the armature 50 is rigidly connected to a guide rod 52 which overlaps the armature in a central bore projecting forwards and backwards.
  • the rod 52 engages through a circular arc-shaped elongated hole 66 of the handwheel 28 concentric with the bearing journal 64 and through a guide bush 68 in a bearing bridge 72 designed as a die-cast part and rigidly connected to the yoke housing with the aid of the screws 70 carries a radially projecting metal disk 74 at its front end. Between the disk 74 and the bottom 76 of an annular groove 78 provided on the bearing bridge 72, a return spring 80 designed as a compression spring is clamped, which rests the armature 50 against the stop surface 82 on the handwheel 82 when the magnet coil 48 is de-energized 28 presses.
  • the washer 84 on the stop surface 82 made of an elastomeric material, like the elastic round cords 88 located in the undercut grooves 86 of the anchor 50, has the function of reducing noise and wear.
  • the bearing pin 64 of the handwheel 28 which is designed as a hollow pin, there is a further compression spring 90 which is supported by a plunger 92 on the opposite anchor surface 94 and ensures that the handwheel 28 with its surface 96 opposite the stop surface 82 constantly bears against the counter surface 98 abuts the bearing bridge.
  • the two contact surfaces 96, 98 are wedge-like in relation to the stop surface 82 in a course concentric with the bearing journal 64, so that when Rotation of the handwheel 82 mounted with the bearing pin 64 in the bearing eye 100 of the bearing bridge 72 results in a parallel displacement of the stop surface 82 and thus a stroke adjustment of the armature 50 and the diaphragm pump.
  • the stop surface 96 on the handwheel is reduced by a circumferential groove 102.
  • the two pawls 108 which are formed in the area of a side wall opening 104 of the housing extension 20 'and which engage in a circumferential knurling 106 of the handwheel 28 ensure that a stroke setting which has been adjusted cannot change inadvertently or automatically.
EP81104718A 1980-07-16 1981-06-19 Pompe doseuse électromagnétique Expired EP0043939B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803026879 DE3026879A1 (de) 1980-07-16 1980-07-16 Magnetdosierpumpe
DE3026879 1980-07-16

Publications (2)

Publication Number Publication Date
EP0043939A1 true EP0043939A1 (fr) 1982-01-20
EP0043939B1 EP0043939B1 (fr) 1984-01-18

Family

ID=6107302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104718A Expired EP0043939B1 (fr) 1980-07-16 1981-06-19 Pompe doseuse électromagnétique

Country Status (2)

Country Link
EP (1) EP0043939B1 (fr)
DE (2) DE3026879A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085206A1 (fr) * 1999-09-13 2001-03-21 Manfred Zucht Station de pompage avec pompe à piston oscillant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844163C1 (de) * 1998-09-25 2000-01-05 Ficht Gmbh & Co Kg Pumpverfahren und Pumpvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH416330A (de) * 1963-11-28 1966-06-30 Bosch Gmbh Robert Elektromagnetisch angetriebene Kraftstoff-Förderpumpe
DE1273992B (de) * 1965-03-13 1968-07-25 Eberspaecher J Brennstoffkolbenpumpe
US3961860A (en) * 1971-06-15 1976-06-08 Chemie And Filter Gmbh Proportioning pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB677120A (en) * 1949-10-31 1952-08-06 Bosch Gmbh Robert Improvements in variable delivery piston pumps
DE2024582C3 (de) * 1969-05-21 1975-08-07 Snam Progetti S.P.A., Mailand (Italien) ZumeBpumpe mit variabler Förderung
DE7119904U (de) * 1971-05-21 1971-09-30 Cillichemie Vogelmann E Membran- dosierpumpe
DE2129588C3 (de) * 1971-06-15 1975-10-30 Chemie Und Filter Gmbh, Verfahrenstechnik Kg, 6900 Heidelberg Dosierpumpe
DE2139969C3 (de) * 1971-08-10 1974-12-12 Chemie Und Filter Gmbh, Verfahrenstechnik Kg, 6900 Heidelberg Einstellvorrichtung für Hubmagnete von Dosierpumpen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH416330A (de) * 1963-11-28 1966-06-30 Bosch Gmbh Robert Elektromagnetisch angetriebene Kraftstoff-Förderpumpe
DE1273992B (de) * 1965-03-13 1968-07-25 Eberspaecher J Brennstoffkolbenpumpe
US3961860A (en) * 1971-06-15 1976-06-08 Chemie And Filter Gmbh Proportioning pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085206A1 (fr) * 1999-09-13 2001-03-21 Manfred Zucht Station de pompage avec pompe à piston oscillant

Also Published As

Publication number Publication date
EP0043939B1 (fr) 1984-01-18
DE3026879A1 (de) 1982-02-04
DE3161953D1 (en) 1984-02-23

Similar Documents

Publication Publication Date Title
EP0203453A2 (fr) Electrovanne
DE3144362A1 (de) Elektromagnetisch betaetigbares stellglied
DD242080A5 (de) Ventil fuer leicht verdampfbare fluessigkeiten, insbesondere expanisionsventil fuer kaelteanlagen
EP0043939A1 (fr) Pompe doseuse électromagnétique
DD298544A5 (de) Schmieranlage
DE2600409C2 (fr)
DE202018104049U1 (de) Tauchpumpe mit integriert gesteuertem Wasserdurchfluss und Druck
EP0027894A2 (fr) Electro-aimant à armature battante
DE2722239A1 (de) Durchflussmessgeraet
DE2651398A1 (de) Stell- oder betaetigungsorgan fuer ein hin und her zu bewegendes funktionselement
DE3212977A1 (de) Magnetventil
US1955565A (en) Mercury dashpot timing device
DE4139670A1 (de) Ventil
DE3441575A1 (de) Elektrothermische ventileinstellantriebsvorrichtung
DE2503946A1 (de) Thermostatisches ventil
EP0450108B1 (fr) Dispositif de limitation de course
DE2648955C2 (de) Membranventil
DE2503241C3 (de) Elektromagnetische hubkolbenpumpe
DE622780C (de) Brennstoffpumpe mit gleichbleibendem Kolbenhub und becherartigem Steuerzylinder
DE2410768A1 (de) Elektromagnetische pumpe
DE950393C (de) Wechselstromrelais mit Daempfungskoerper
DE1985837U (de) Fadenspannungsausloesevorrichtung an naehmaschinen.
DE102004048683B4 (de) Ventil
DE2716541B2 (de) Hydraulischer Selbstschalter
CH254354A (de) Pumpe mit veränderbarer Fördermenge.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811028

AK Designated contracting states

Designated state(s): DE FR IT

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RBV Designated contracting states (corrected)

Designated state(s): DE FR IT

AK Designated contracting states

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 3161953

Country of ref document: DE

Date of ref document: 19840223

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840515

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840627

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880226

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19880301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST