EP1764506A2 - Pompe à engrenages internes - Google Patents

Pompe à engrenages internes Download PDF

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Publication number
EP1764506A2
EP1764506A2 EP06017937A EP06017937A EP1764506A2 EP 1764506 A2 EP1764506 A2 EP 1764506A2 EP 06017937 A EP06017937 A EP 06017937A EP 06017937 A EP06017937 A EP 06017937A EP 1764506 A2 EP1764506 A2 EP 1764506A2
Authority
EP
European Patent Office
Prior art keywords
pinion
internal gear
conductive connection
filler
ring 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Withdrawn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
EP06017937A
Other languages
German (de)
English (en)
Other versions
EP1764506A3 (fr
Inventor
Günther Nagel
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
Publication of EP1764506A2 publication Critical patent/EP1764506A2/fr
Publication of EP1764506A3 publication Critical patent/EP1764506A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F04C2/101—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 with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses

Definitions

  • the invention relates to an internal gear machine according to the preamble of claim 1.
  • Such internal gear machines are for example off DE 100 58 883 A1 known.
  • the main components are an internally toothed ring gear, an externally toothed pinion and a filler, which fills a crescent-shaped space between the two wheels.
  • the filler is divided into two parts. A radially inner, pinion side member abuts on the pinion teeth, and a radially outer, hollow-wheel-side member, on the ring gear teeth.
  • the two Arter based against a stop pin, which is mounted in the housing and slightly rotatable about its own axis.
  • the Gear GmbH are movably mounted so that they can follow the movements of the gears during operation to thereby compensate for radial longitudinal gaps.
  • control slots are provided in the housing of the internal gear machine. Hydraulic forces act on the filler pieces via these control slots to at least partially hold them in their optimum positions in which they are pressed against the tooth tips of the gears.
  • the filler separates two rooms from each other, which are in operation under different pressures. If there is no constant operating pressure in the pressure chambers, correspondingly variable forces can act on the filler pieces. This can lead to a "fluttering" of Grepowski. In this case, one of the Art Glazier bear against the toothing assigned to him, the other Art Glateil but not on its teeth. This condition can change constantly.
  • the invention has for its object to design an internal gear machine according to the preamble of claim 1 such that a chattering of Art Glaze is avoided. It should thus be avoided that temporarily or constantly a Gear Glateil is pressed against the tooth tips of its associated gear stronger than the other Grezier but not against the tooth tips of its associated gear. All it is particularly important that the problems are avoided even in a medium containing free air.
  • a conductive connection which extends between the tooth spaces of the ring gear and the pinion, and which - seen in the circumferential direction - extends in the region of the filler.
  • the said conductive connection is generally realized with bores located inside the side windows.
  • the internal gear machine shown in Figure 1 represents a first of the embodiments discussed here. It can be seen a ring gear 1 and a hereby meshing pinion 2. The pinion is arranged eccentrically relative to the ring gear.
  • a crescent-shaped filler 3 Between ring gear 1 and pinion 2 is a crescent-shaped filler 3, which delimits two areas of different pressures against each other.
  • the filler 3 is subdivided into a pinion-side part 3.1 and a hollow-wheel-side part 3.2.
  • the pinion-side part 3.1 is applied to the heads of the pinion teeth, and the hollow-wheel-side part 3.2 to the heads of Hohlradzähne.
  • the two filler pieces 3.1 and 3.2 are supported against a stop pin 4.
  • the internal gear machine according to FIG. 2 is designed in the same way as that according to FIG. 1. However, in this case the features according to the invention can be clearly recognized.
  • Air bubbles preferably collect in the radially inner region, while the working medium contains air bubbles to a lesser extent in the radially outer region. This has the consequence that the radially inner, pinion close Art Glateil 3.1 is acted upon less than the radially outer, close to the hollow wheel Gund 3.2.
  • the pinion near filler section 3.1 would therefore be in itself - that is without the inventive design - pressed with relatively large forces against the teeth heads of the pinion teeth. However, this is prevented by the design according to the invention. This is ensured by a conductive connection between tooth gaps of the ring gear and tooth spaces of the pinion.
  • this connection is made by corresponding holes and channels in at least one of the two side windows, the Bestanteil of the housing. These are bores 9 and 10 as well as a connecting bore 11, which is clearly seen in FIG.
  • the connection bore 11 is completely enclosed by the material of the side window (not shown here). It would also be conceivable, instead, to mill a groove in the inner surface of the side window facing the toothed wheels.
  • Gap space 5 between the two seals 6, 7 is connected to the connecting holes 11, and is thus also supplied with pressure oil.
  • Control slot 12 communicates with tooth gap 2.1 in a conductive connection, and control slot 13 with the connecting line 11.
  • the embodiment of the invention also works when the print medium contains no or only very little unresolved air.
  • the internal gear machine shown in Figure 3 belongs to the prior art. It in turn has a ring gear 1, a pinion 2, a filler 3 and a stopper pin 4.
  • the gap 5 is sealed by seals 6, 7. It is connected via axial bores 14, 15 and a connecting bore 16 with the tooth gap 1.1 of the ring gear in a conductive connection.
  • the pressure build-up above the angle of rotation takes place for the tooth gaps 1.1 and 2.1 via the control slots 12 and 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Gears, Cams (AREA)
EP06017937.1A 2005-09-17 2006-08-29 Pompe à engrenages internes Withdrawn EP1764506A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510044576 DE102005044576A1 (de) 2005-09-17 2005-09-17 Innenzahnradmaschine

Publications (2)

Publication Number Publication Date
EP1764506A2 true EP1764506A2 (fr) 2007-03-21
EP1764506A3 EP1764506A3 (fr) 2013-11-27

Family

ID=37496493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017937.1A Withdrawn EP1764506A3 (fr) 2005-09-17 2006-08-29 Pompe à engrenages internes

Country Status (3)

Country Link
EP (1) EP1764506A3 (fr)
JP (1) JP2007085338A (fr)
DE (1) DE102005044576A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883515A (zh) * 2014-02-24 2014-06-25 江苏驰翔精密齿轮有限公司 内啮合齿轮泵

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013207103A1 (de) * 2013-04-19 2014-10-23 Robert Bosch Gmbh Innenzahnradpumpe für eine hydraulische Fahrzeugbremsanlage
CN103727026B (zh) * 2014-01-26 2016-03-23 潘光奇 一种内啮合齿轮泵

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325849C (de) * 1917-03-03 1920-09-21 Emil Ludwig Zahnradpumpe, bei welcher ein Stirnrad mit einem innen verzahnten Hohlrad zusammenarbeitet
EP0469135A1 (fr) * 1990-02-19 1992-02-05 Bucher Maschf Gmbh Pompe ou moteur a engrenages.
DE19854155A1 (de) * 1997-12-03 1999-06-10 Luk Getriebe Systeme Gmbh Hydraulische Zahnradmaschine
DE29624460U1 (de) * 1996-04-06 2003-12-24 Bosch Rexroth Ag Innenzahnradmaschine (Pumpe oder Motor)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942417A1 (de) * 1979-10-19 1981-05-14 Otto Eckerle GmbH & Co KG, 7502 Malsch Innenzahnradmaschine
DE2954546C2 (fr) * 1979-10-19 1989-07-06 Otto Eckerle Gmbh & Co Kg, 7502 Malsch, De
DE4336966A1 (de) * 1993-10-29 1995-05-04 Otto Eckerle Innenzahnradmaschine
DE102004033490A1 (de) * 2003-07-21 2005-02-10 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Innenzahnradmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325849C (de) * 1917-03-03 1920-09-21 Emil Ludwig Zahnradpumpe, bei welcher ein Stirnrad mit einem innen verzahnten Hohlrad zusammenarbeitet
EP0469135A1 (fr) * 1990-02-19 1992-02-05 Bucher Maschf Gmbh Pompe ou moteur a engrenages.
DE29624460U1 (de) * 1996-04-06 2003-12-24 Bosch Rexroth Ag Innenzahnradmaschine (Pumpe oder Motor)
DE19854155A1 (de) * 1997-12-03 1999-06-10 Luk Getriebe Systeme Gmbh Hydraulische Zahnradmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103883515A (zh) * 2014-02-24 2014-06-25 江苏驰翔精密齿轮有限公司 内啮合齿轮泵

Also Published As

Publication number Publication date
EP1764506A3 (fr) 2013-11-27
DE102005044576A1 (de) 2007-03-22
JP2007085338A (ja) 2007-04-05

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