EP0881392A3 - Wellendurchführung, insbesondere für eine Zahnradpumpe - Google Patents

Wellendurchführung, insbesondere für eine Zahnradpumpe Download PDF

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Publication number
EP0881392A3
EP0881392A3 EP98114385A EP98114385A EP0881392A3 EP 0881392 A3 EP0881392 A3 EP 0881392A3 EP 98114385 A EP98114385 A EP 98114385A EP 98114385 A EP98114385 A EP 98114385A EP 0881392 A3 EP0881392 A3 EP 0881392A3
Authority
EP
European Patent Office
Prior art keywords
sealing
arrangement
seal
gear pumps
shaft passage
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
EP98114385A
Other languages
English (en)
French (fr)
Other versions
EP0881392A2 (de
EP0881392B1 (de
Inventor
Marco Benetti
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.)
Maag Pump Systems AG
Original Assignee
Maag Pump Systems AG
Maag Pump Systems Textron 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 Maag Pump Systems AG, Maag Pump Systems Textron AG filed Critical Maag Pump Systems AG
Priority to EP19980114385 priority Critical patent/EP0881392B1/de
Priority to DE59813954T priority patent/DE59813954D1/de
Publication of EP0881392A2 publication Critical patent/EP0881392A2/de
Publication of EP0881392A3 publication Critical patent/EP0881392A3/de
Application granted granted Critical
Publication of EP0881392B1 publication Critical patent/EP0881392B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Die Erfindung betrifft eine Wellendurchführung in einen Raum (R) für ein Medium (M). Ausgehend vom Raum (R) ist zunächst ein Gleitlager (GL), anschliessend eine Labyrinthdichtung (L) mit Gewindeförderrichtung (FR) gegen den Raum (R) hin und an die Labyrinthdichtung (L) anschliessend eine zweite Dichtung (SB) vorgesehen, die ein Austreten von Medium (M) auch im Stillstand der Welle (W) verhindert. Erfindungsgemäss ist, anschliessend an die zweite Dichtung (SB), eine dritte Dichtung (DGRD) vorgesehen, die gasdicht ist.
EP19980114385 1998-07-31 1998-07-31 Wellendurchführung, insbesondere für eine Zahnradpumpe Expired - Lifetime EP0881392B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19980114385 EP0881392B1 (de) 1998-07-31 1998-07-31 Wellendurchführung, insbesondere für eine Zahnradpumpe
DE59813954T DE59813954D1 (de) 1998-07-31 1998-07-31 Wellendurchführung, insbesondere für eine Zahnradpumpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980114385 EP0881392B1 (de) 1998-07-31 1998-07-31 Wellendurchführung, insbesondere für eine Zahnradpumpe

Publications (3)

Publication Number Publication Date
EP0881392A2 EP0881392A2 (de) 1998-12-02
EP0881392A3 true EP0881392A3 (de) 1999-02-10
EP0881392B1 EP0881392B1 (de) 2007-03-28

Family

ID=8232382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980114385 Expired - Lifetime EP0881392B1 (de) 1998-07-31 1998-07-31 Wellendurchführung, insbesondere für eine Zahnradpumpe

Country Status (2)

Country Link
EP (1) EP0881392B1 (de)
DE (1) DE59813954D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2820247B1 (de) 2012-03-02 2021-02-17 Maag Pump Systems AG Dichtungsanordnung, eine fördereinrichtung mit einer dichtungsanordnung sowie ein verfahren zum betrieb der dichtungsanordnung
EP4567277A4 (de) * 2022-08-04 2026-04-22 Ihi Corp Dreifachgetriebepumpe
DE202023000769U1 (de) 2023-04-06 2023-08-09 SKTEC GmbH Zahnradpumpe mit Dichtsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937477A (en) * 1973-12-26 1976-02-10 Borg-Warner Corporation Mechanical seal system
US4243230A (en) * 1979-10-01 1981-01-06 Crane Packing Co. Low energy tandem seal
US4291888A (en) * 1979-01-24 1981-09-29 Kobe Steel, Limited Rotor shaft sealing mechanism in synthetic resin kneading machines or extruders

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125128C2 (de) 1990-08-10 1994-11-24 Barmag Barmer Maschf Zahnradpumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937477A (en) * 1973-12-26 1976-02-10 Borg-Warner Corporation Mechanical seal system
US4291888A (en) * 1979-01-24 1981-09-29 Kobe Steel, Limited Rotor shaft sealing mechanism in synthetic resin kneading machines or extruders
US4243230A (en) * 1979-10-01 1981-01-06 Crane Packing Co. Low energy tandem seal

Also Published As

Publication number Publication date
EP0881392A2 (de) 1998-12-02
EP0881392B1 (de) 2007-03-28
DE59813954D1 (de) 2007-05-10

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