EP1039135A2 - Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents - Google Patents

Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents Download PDF

Info

Publication number
EP1039135A2
EP1039135A2 EP99124717A EP99124717A EP1039135A2 EP 1039135 A2 EP1039135 A2 EP 1039135A2 EP 99124717 A EP99124717 A EP 99124717A EP 99124717 A EP99124717 A EP 99124717A EP 1039135 A2 EP1039135 A2 EP 1039135A2
Authority
EP
European Patent Office
Prior art keywords
ring gear
pinion
tooth
gear pump
internal gear
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Withdrawn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)
English (en)
Other versions
EP1039135A3 (fr
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/ko
Priority to US09/523,802 priority patent/US6273695B1/en
Priority to JP2000082648A priority patent/JP2000291565A/ja
Publication of EP1039135A2 publication Critical patent/EP1039135A2/fr
Publication of EP1039135A3 publication Critical patent/EP1039135A3/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a sickle-free internal gear pump for Generation of high pressure according to the preamble of patent claim 1.
  • a pump of this generic type is known from DE 41 04 397 A1 known.
  • Internal gear pumps generally have an internal gear with which an externally toothed pinion meshes with a smaller number of teeth, i.e. is drivingly engaged.
  • Each tooth head of the ring gear has a profile groove on.
  • a sealing element is inserted into this groove. This arrives during circulation of the pinion with its tooth heads in sliding contact. Doing so shortly a seal is made that seals the suction chamber against the Shuts off the pressure chamber. To achieve a certain contact pressure are the springs on the radially outer ends of the sealing elements.
  • the sealing elements are usually made of plastic. You went there previously believed that some elasticity with regard to the seal necessary is.
  • the invention has for its object to such an internal gear pump design that neither a drop in efficiency occurs nor Pressure pulsations appear.
  • the crowns of the tooth tips of the pinion lie on different radii. This is due to manufacturing tolerances. This means, for example, that the apex of one tooth tip is on a larger radius than the apex of the tooth tip of an adjacent tooth lies.
  • For the Sealing elements means that even their sealing surfaces when the Pinions from tooth to tooth lie on different radii. In a way In this way, the sealing elements result in a dancing movement radial direction. The movement only takes place in the micro range, however, it does exist. It leads to a relative movement of the individual Sealing element on the reveal of the profile groove, which in the tooth head of the Ring gear is incorporated.
  • the individual Sealing element is a barrier between the suction chamber and the pressure chamber.
  • a pressure differential acts on the sealing element with Pressure direction from the suction chamber to the pressure chamber.
  • This also means that the side surface of the sealing element facing the suction chamber against the relevant reveal of the profile groove is pressed.
  • the said Micromotion in the radial direction leads in view of the above Differential pressure for a grinding process.
  • This has a wear of the according to the areas involved.
  • the sealing element becomes extremely undesirable Machined in one face. The wear can be so severe be that it will tilt the sealing elements and thus too Interferences of the meshing leads. Therefore, he could not be the cause for the above-mentioned harmful effects (loss of efficiency, Pressure pulsations) can be determined.
  • Fig. 1 shows in a cross section a sickle-free, head-sealing backlash each with a flank sealing internal gear pump, and in the area of a housing part 1, which - viewed in the axial direction - Connect further housing parts.
  • a fixed on a drive shaft 4 externally toothed pinion 5 meshes with an internally toothed ring gear 6 and thus forms a toothing 12.
  • the pinion 5 and the ring gear 6 are not coaxially but eccentrically; also has the pinion 5 one tooth less than the ring gear 6, so that the outside a toothed head 13 on the pinion 5 with the inside of a toothed head 14 on Ring gear 6 comes into contact.
  • a suction connection 7 in can also be seen the zone in which the teeth on the pinion 5 or ring gear 6 disengaged.
  • a pressure connection 10 is located, also starting from one pressure pocket extending over a circumferential area on the ring gear 6 11, on the opposite side of the pump.
  • the inflow from Pressure medium to the interior of the pump, i.e. to the tooth gaps in the pinion 5 and in the ring gear 6, which cause the promotion of the pressure medium takes place axially and via radial openings 17 in the ring gear 6. These openings 17 start from the outer surface 20 of the ring gear 6 and open into it Tooth base.
  • FIG. 2 shows how the Sealing elements 30 in dovetail-like profile grooves 34 in a form-fitting manner are fitted and how the side / contact surfaces between Sealing element 30 and profile groove 34 can be designed to cover the width the toothing 12 a pressure distribution as uniform as possible and thus to ensure the most stable possible operating behavior of the pump.
  • Fig. 2 shows the pinion 5 and the ring gear 6 in the area in which the / in Ring gear 6 inserted sealing element 30 sealingly abuts the pinion 5.
  • the sealing elements 30 are made of steel due to pressure pulsations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
EP99124717A 1999-03-26 1999-12-11 Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents Withdrawn EP1039135A3 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020000008807A KR20000062610A (ko) 1999-03-26 2000-02-23 기어 치부 선단부에 실 부재를 구비한 내륜형 기어 펌프
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 (ja) 1999-03-26 2000-03-23 歯先部に挿入されたシール部材を備え鎌状部材を有さない内接歯車ポンプ

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 true EP1039135A2 (fr) 2000-09-27
EP1039135A3 EP1039135A3 (fr) 2001-12-19

Family

ID=7902506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124717A Withdrawn EP1039135A3 (fr) 1999-03-26 1999-12-11 Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents

Country Status (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984257A (zh) * 2010-10-30 2011-03-09 辽宁工程技术大学 平衡式内啮合齿轮泵
WO2023202752A1 (fr) * 2022-04-20 2023-10-26 Hanon Systems Efp Deutschland Gmbh Pompe à rotor denté

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100427077B1 (ko) * 2001-10-09 2004-04-17 현대자동차주식회사 오일펌프 구조

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 (fr) * 1963-10-30 1964-09-25 Goetzewerke Segment d'étanchéité radial pour machine à piston rotatif
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 (de) * 1990-03-09 1991-09-12 Voith Gmbh J M Innenzahnradpumpe
DE4140293A1 (de) * 1991-12-06 1993-06-09 J.M. Voith Gmbh, 7920 Heidenheim, De Sichellose innenzahnradpumpe mit in die zahnkoepfe eingesetzten dichtelementen

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 (fr) * 1963-10-30 1964-09-25 Goetzewerke Segment d'étanchéité radial pour machine à piston rotatif
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 (de) * 1990-03-09 1991-09-12 Voith Gmbh J M Innenzahnradpumpe
DE4140293A1 (de) * 1991-12-06 1993-06-09 J.M. Voith Gmbh, 7920 Heidenheim, De Sichellose innenzahnradpumpe mit in die zahnkoepfe eingesetzten dichtelementen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984257A (zh) * 2010-10-30 2011-03-09 辽宁工程技术大学 平衡式内啮合齿轮泵
CN101984257B (zh) * 2010-10-30 2012-03-28 辽宁工程技术大学 平衡式内啮合齿轮泵
WO2023202752A1 (fr) * 2022-04-20 2023-10-26 Hanon Systems Efp Deutschland Gmbh Pompe à rotor denté

Also Published As

Publication number Publication date
KR20000062610A (ko) 2000-10-25
EP1039135A3 (fr) 2001-12-19

Similar Documents

Publication Publication Date Title
DE2242269C3 (de) Zahnradpumpe oder -motor
DE19613833A1 (de) Innenzahnradmaschine, insbesondere Innenzahnradpumpe
DE2825616C2 (de) Lager- und Dichtungsanordnung an den Wellen einer Zahnradpumpe
DE2318753A1 (de) Zahnradmaschine
EP2646689A2 (fr) Pompe à roue à denture intérieure
DE102005041579B4 (de) Innenzahnradpumpe mit Füllstück
DE102005004657A1 (de) Innenzahnradmaschine
EP0563661A1 (fr) Pompe à engrenages internes avec des éléments d'étanchéité mobiles radialement pour la compensation radiale
EP0545424B1 (fr) Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents
DE2053457C3 (de) Zweistufige Fluidpumpe
DE102005047175A1 (de) Flügelzellenpumpe
EP1328730B1 (fr) Pompe a engrenages interieurs depourvue d'element de separation
EP0661454B1 (fr) Pompe à engrenages internes
EP1039135A2 (fr) Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents
EP1261806A1 (fr) Ensemble rotor a denture inverse
DE102012217115A1 (de) Zahnradmaschine mit von der Kreisform abweichendem Niederdruckanschluss
EP0539673B1 (fr) Pompe à engrenage interne avec deux couronnes et un pignon commun
DE102016207093B4 (de) Zahnradfluidmaschine
EP0607497B1 (fr) Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents
DE2547994A1 (de) Zahnradpumpe oder -motor
DE102013202917A1 (de) Zahnradmaschine mit erhöhter Partikelrobustheit
DE102011078064A1 (de) Innenzahnradpumpe
DE19712169C1 (de) Sichellose Innenzahnradpumpe mit in den Zahnköpfen eingesetzten Dichtelementen
DE4428384A1 (de) Zahnradpumpe
DE1280056B (de) Drehkolbenmaschine mit zwei Zahnraedern im Inneneingriff

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011212

17Q First examination report despatched

Effective date: 20020627

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

18W Application withdrawn

Withdrawal date: 20020902