EP0141068A2 - Pompe doseuse à plongeur - Google Patents

Pompe doseuse à plongeur Download PDF

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Publication number
EP0141068A2
EP0141068A2 EP84109239A EP84109239A EP0141068A2 EP 0141068 A2 EP0141068 A2 EP 0141068A2 EP 84109239 A EP84109239 A EP 84109239A EP 84109239 A EP84109239 A EP 84109239A EP 0141068 A2 EP0141068 A2 EP 0141068A2
Authority
EP
European Patent Office
Prior art keywords
piston
metering
pump
plunger
wear part
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
EP84109239A
Other languages
German (de)
English (en)
Other versions
EP0141068B2 (fr
EP0141068A3 (en
EP0141068B1 (fr
Inventor
Walter Eichner
Kay Bödecker
Wolfgang Huber
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.)
Ecolab Engineering GmbH
Original Assignee
Lang Apparatebau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6206311&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0141068(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lang Apparatebau GmbH filed Critical Lang Apparatebau GmbH
Priority to AT84109239T priority Critical patent/ATE48898T1/de
Publication of EP0141068A2 publication Critical patent/EP0141068A2/fr
Publication of EP0141068A3 publication Critical patent/EP0141068A3/de
Application granted granted Critical
Publication of EP0141068B1 publication Critical patent/EP0141068B1/fr
Publication of EP0141068B2 publication Critical patent/EP0141068B2/fr
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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities

Definitions

  • the invention relates to a plunger metering pump with a metering piston designed as a plunger, preferably for metering an additional liquid into the injection point of a main liquid line, in particular into a water line.
  • the metering pump can, for example, have a mechanical-hydraulic, mechanical-pneumatic or electric drive and is primarily arranged directly inside the metering agent container on its bottom.
  • the medium to be dosed should always be higher than the pump cylinder.
  • the invention has for its object to improve the plunger metering pump so that when wear occurs, a simple, quick and safe repair of the pump is possible without the need for an additional readjustment of the metered amount. Disassembly and Assembly of the pump should in particular be carried out in such a way that the position of the metering piston relative to its sealing element is exactly retained during the exchange.
  • the solution according to the invention is characterized for the plunger metering pump described at the outset by an exchangeable pump module or a wear part insert.
  • the pump module which preferably also contains the metering piston, is assigned a first contact edge, in particular in the lower part of the pump receptacle, which ensures the relative position required for operation during assembly.
  • the Kolben Stahl h is approximately upper part of the pump module in the piston actuating ram of the pump formed Snap.
  • the piston upper part of the pump module should expediently be assigned a further contact edge in the piston actuating plunger, which facilitates exact assembly.
  • the interchangeable wear part insert or pump module according to the invention should contain, in addition to the aforementioned elements, in particular a metering check valve protecting the metering line against the pump cylinder and the sealing element sealing against the surrounding medium, and advantageously also the piston guide elements.
  • a metering check valve protecting the metering line against the pump cylinder and the sealing element sealing against the surrounding medium
  • the piston guide elements for handling it is favorable if the pump module is surrounded by an intermediate ring which on the one hand facilitates replacement and on the other hand protects the sealing elements from external impairments.
  • a latchable connection of the pump module piston upper part to the actuating plunger of the piston is also advantageous. This means that a piston return spring can be dispensed with and the drive force can be reduced by the corresponding spring restoring force.
  • the plunger metering pump shown in section and designated overall by 1 has a metering piston 2 designed as a plunger.
  • the medium to be metered runs in the upper piston position 3 via inlet slots 4 into a cylinder space 5.
  • the metering piston 2 moves downward in the direction of the arrow 6, the metering liquid present in the cylinder chamber 5 is expelled into the metering line 10 via the metering check valve 7, which is designed in particular as a ring valve, via the ring chamber 8 of the intermediate ring 9.
  • the individual parts of the metering pump 1 which are primarily exposed to wear are combined in a separate wear part insert 11.
  • the module change is an after adjust or readjust the specific dosage. not required.
  • This advantage is achieved, inter alia, by a first contact edge 18 associated with the wear part insert 11 for the lower part of the pump receptacle 19. With the aid of a further contact edge 20 - namely between the upper piston guide part 16 and the piston actuating plunger or lever 21 - the relative position of the metering piston 2 to its sealing element 12 can be achieved can be guaranteed particularly safely.
  • Another advantageous feature of the present metering pump is the snap-in connection of the piston guide upper part 16 and the piston actuating plunger 21. With the aid of this connection, the metering piston 2 is carried along during the upward movement in the direction of the arrow 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
EP84109239A 1983-08-11 1984-08-03 Pompe doseuse à plongeur Expired - Lifetime EP0141068B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109239T ATE48898T1 (de) 1983-08-11 1984-08-03 Tauchkolben-dosierpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3329006 1983-08-11
DE3329006A DE3329006C2 (de) 1983-08-11 1983-08-11 Tauchkolben-Dosierpumpe

Publications (4)

Publication Number Publication Date
EP0141068A2 true EP0141068A2 (fr) 1985-05-15
EP0141068A3 EP0141068A3 (en) 1986-05-14
EP0141068B1 EP0141068B1 (fr) 1989-12-20
EP0141068B2 EP0141068B2 (fr) 1994-03-16

Family

ID=6206311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109239A Expired - Lifetime EP0141068B2 (fr) 1983-08-11 1984-08-03 Pompe doseuse à plongeur

Country Status (3)

Country Link
EP (1) EP0141068B2 (fr)
AT (1) ATE48898T1 (fr)
DE (2) DE3329006C2 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766701A (en) * 1953-03-09 1956-10-16 Nat Supply Co Plunger and cylinder for pump
DE1009029B (de) * 1953-10-26 1957-05-23 Jean Louis Gratzmuller Kolbenpumpe
US3223040A (en) * 1962-04-09 1965-12-14 Stewart Warner Corp Two component pumping and proportioning system
US4242063A (en) * 1979-06-13 1980-12-30 Lear Siegler, Inc. High pressure multi-cylinder pump
AT363782B (de) * 1978-07-19 1981-08-25 Lang Apparatebau Gmbh Vorrichtung zum dosieren einer chemikalienloesung in stroemende frischfluessigkeit
EP0073940A2 (fr) * 1981-09-03 1983-03-16 Grünbeck Wasseraufbereitung GmbH Pompe de dosage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE330902C (de) * 1919-11-05 1920-12-23 Carl Schmidt Einfach wirkende Tauchkolbenpumpe mit Einsatzzylinder
DE3300461A1 (de) * 1983-01-08 1984-08-30 Lang Apparatebau GmbH, 8227 Siegsdorf Kolben-membrandosierpumpe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766701A (en) * 1953-03-09 1956-10-16 Nat Supply Co Plunger and cylinder for pump
DE1009029B (de) * 1953-10-26 1957-05-23 Jean Louis Gratzmuller Kolbenpumpe
US3223040A (en) * 1962-04-09 1965-12-14 Stewart Warner Corp Two component pumping and proportioning system
AT363782B (de) * 1978-07-19 1981-08-25 Lang Apparatebau Gmbh Vorrichtung zum dosieren einer chemikalienloesung in stroemende frischfluessigkeit
US4242063A (en) * 1979-06-13 1980-12-30 Lear Siegler, Inc. High pressure multi-cylinder pump
EP0073940A2 (fr) * 1981-09-03 1983-03-16 Grünbeck Wasseraufbereitung GmbH Pompe de dosage

Also Published As

Publication number Publication date
EP0141068B2 (fr) 1994-03-16
DE3329006A1 (de) 1985-02-28
DE3480802D1 (de) 1990-01-25
DE3329006C2 (de) 1993-12-09
ATE48898T1 (de) 1990-01-15
EP0141068A3 (en) 1986-05-14
EP0141068B1 (fr) 1989-12-20

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