EP1039135A3 - Internal gear pump with sealings incorporated in the teeth - Google Patents

Internal gear pump with sealings incorporated in the teeth Download PDF

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Publication number
EP1039135A3
EP1039135A3 EP99124717A EP99124717A EP1039135A3 EP 1039135 A3 EP1039135 A3 EP 1039135A3 EP 99124717 A EP99124717 A EP 99124717A EP 99124717 A EP99124717 A EP 99124717A EP 1039135 A3 EP1039135 A3 EP 1039135A3
Authority
EP
European Patent Office
Prior art keywords
ring gear
hohlrad
auf
pinion
weist
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.)
Withdrawn
Application number
EP99124717A
Other languages
German (de)
French (fr)
Other versions
EP1039135A2 (en
Inventor
Franz Arbogast
Peter Peiz
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.)
Voith Turbo GmbH and Co KG
Original Assignee
Voith Turbo GmbH and Co KG
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 Voith Turbo GmbH and Co KG filed Critical Voith Turbo GmbH and Co KG
Priority to KR1020000008807A priority Critical patent/KR20000062610A/en
Priority to US09/523,802 priority patent/US6273695B1/en
Priority to JP2000082648A priority patent/JP2000291565A/en
Publication of EP1039135A2 publication Critical patent/EP1039135A2/en
Publication of EP1039135A3 publication Critical patent/EP1039135A3/en
Withdrawn legal-status Critical Current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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes

Landscapes

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

Abstract

Die Erfindung betrifft eine sichellose Innenzahnradpumpe mit den folgenden Merkmalen:

  • mit einem innenverzahnten Hohlrad;
  • mit einem mit dem Hohlrad kämmenden Ritzel;
  • Hohlrad und Ritzel sind in einem Gehäuse drehbar gelagert;
  • das Gehäuse weist einen Sauganschluss und einen Druckanschluss auf.
    • The invention relates to a sickle-free internal gear pump with the following features:
  • with an internally toothed ring gear;
  • with a pinion meshing with the ring gear;
  • The ring gear and pinion are rotatably mounted in a housing;
  • the housing has a suction connection and a pressure connection.

    • Um einen Wirkungsgradabfall sowie Druckpulsationen bei höheren Betriebsdrücken zu vermeiden, werden die Dichtelemente gemäß der Erfindung aus Metall hergestellt;

  • das Hohlrad weist Durchbrüche für das zu pumpende Medium auf;
  • jeder Zahnkopf des Hohlrades weist eine Profilnut auf, in der sich ein radial bewegliches Dichtelement zum Erzielen einer gleitenden Abdichtung mit den Zahnköpfen des Ritzels befindet.
    • Figure 00000001
    In order to avoid a drop in efficiency and pressure pulsations at higher operating pressures, the sealing elements according to the invention are made of metal;
  • the ring gear has openings for the medium to be pumped;
  • each tooth head of the ring gear has a profile groove in which there is a radially movable sealing element for achieving a sliding seal with the tooth heads of the pinion.
    • Figure 00000001
    EP99124717A 1999-03-26 1999-12-11 Internal gear pump with sealings incorporated in the teeth Withdrawn EP1039135A3 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    KR1020000008807A KR20000062610A (en) 1999-03-26 2000-02-23 sickless internal gear wheel pump with sealing elements inserted into the tooth tips
    US09/523,802 US6273695B1 (en) 1999-03-26 2000-03-13 Sickleless internal gear wheel pump with sealing elements inserted into the tooth tips
    JP2000082648A JP2000291565A (en) 1999-03-26 2000-03-23 Internal gear pump equipped with sealing member inserted in addendum part, having no sickle-shaped member

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19913752 1999-03-26
    DE19913752 1999-03-26

    Publications (2)

    Publication Number Publication Date
    EP1039135A2 EP1039135A2 (en) 2000-09-27
    EP1039135A3 true EP1039135A3 (en) 2001-12-19

    Family

    ID=7902506

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99124717A Withdrawn EP1039135A3 (en) 1999-03-26 1999-12-11 Internal gear pump with sealings incorporated in the teeth

    Country Status (2)

    Country Link
    EP (1) EP1039135A3 (en)
    KR (1) KR20000062610A (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    KR100427077B1 (en) * 2001-10-09 2004-04-17 현대자동차주식회사 Apparatus of oil pump
    CN101984257B (en) * 2010-10-30 2012-03-28 辽宁工程技术大学 Balanced type crescent seal gear pump
    DE102022203867A1 (en) * 2022-04-20 2023-10-26 Hanon Systems Efp Deutschland Gmbh gerotor pump

    Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2790394A (en) * 1952-09-02 1957-04-30 Gulf Research Development Co Internal-external gear pump with self-sealing tooth tips
    FR1373473A (en) * 1963-10-30 1964-09-25 Goetzewerke Radial sealing ring for rotary piston machine
    US4180188A (en) * 1975-11-18 1979-12-25 Kokkoman Shoyu Co., Ltd. Sealing structure for rotary valves
    US4618317A (en) * 1982-11-30 1986-10-21 Nippon Piston Ring Co., Ltd. Rotary type fluid compressor
    DE4104397A1 (en) * 1990-03-09 1991-09-12 Voith Gmbh J M Internal gear pump without sickle element - incorporates method of dimensioning teeth to give compact design
    DE4140293A1 (en) * 1991-12-06 1993-06-09 J.M. Voith Gmbh, 7920 Heidenheim, De SAFETY INTERNAL GEAR PUMP WITH SEALING ELEMENTS INSERTED IN THE GEAR HEADS

    Patent Citations (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2790394A (en) * 1952-09-02 1957-04-30 Gulf Research Development Co Internal-external gear pump with self-sealing tooth tips
    FR1373473A (en) * 1963-10-30 1964-09-25 Goetzewerke Radial sealing ring for rotary piston machine
    US4180188A (en) * 1975-11-18 1979-12-25 Kokkoman Shoyu Co., Ltd. Sealing structure for rotary valves
    US4618317A (en) * 1982-11-30 1986-10-21 Nippon Piston Ring Co., Ltd. Rotary type fluid compressor
    DE4104397A1 (en) * 1990-03-09 1991-09-12 Voith Gmbh J M Internal gear pump without sickle element - incorporates method of dimensioning teeth to give compact design
    DE4140293A1 (en) * 1991-12-06 1993-06-09 J.M. Voith Gmbh, 7920 Heidenheim, De SAFETY INTERNAL GEAR PUMP WITH SEALING ELEMENTS INSERTED IN THE GEAR HEADS

    Also Published As

    Publication number Publication date
    KR20000062610A (en) 2000-10-25
    EP1039135A2 (en) 2000-09-27

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