EP1760315A3 - Internal gear pump with filler - Google Patents

Internal gear pump with filler Download PDF

Info

Publication number
EP1760315A3
EP1760315A3 EP06017387.9A EP06017387A EP1760315A3 EP 1760315 A3 EP1760315 A3 EP 1760315A3 EP 06017387 A EP06017387 A EP 06017387A EP 1760315 A3 EP1760315 A3 EP 1760315A3
Authority
EP
European Patent Office
Prior art keywords
filler
internal gear
gear pump
pressure chamber
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Withdrawn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
EP06017387.9A
Other languages
German (de)
French (fr)
Other versions
EP1760315A2 (en
Inventor
Reiner KNÖLL
Frank Höhn
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.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth 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 Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1760315A2 publication Critical patent/EP1760315A2/en
Publication of EP1760315A3 publication Critical patent/EP1760315A3/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Withdrawn legal-status Critical Current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
    • F04C2/10—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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • 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
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Abstract

Die Erfindung betrifft eine Innenzahnradpumpe mit Hohlrad, Ritzel und Füllstück aus Dichtsegment und Segmentträger. Zwischen Dichtsegment und Segmentträger ist ein Druckraum ausgebildet. Zur Verringerung der Druckpulsationen am Füllstück wird neben einer Steuernut, die sich zwischen dem Druckraum und einer zweiten Zahnlücke im Hohlrad erstreckt, eine Zusatznut zwischen Druckraum und einer ersten Zahnlücke im Hohlrad vorgesehen.

Figure imgaf001
The invention relates to an internal gear pump with ring gear, pinion and filling piece of sealing segment and segment carrier. Between sealing segment and segment carrier a pressure chamber is formed. To reduce the pressure pulsations on the filler piece, an additional groove between the pressure chamber and a first tooth gap in the ring gear is provided in addition to a control groove which extends between the pressure chamber and a second tooth gap in the ring gear.
Figure imgaf001
EP06017387.9A 2005-09-01 2006-08-22 Internal gear pump with filler Withdrawn EP1760315A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005041579.2A DE102005041579B4 (en) 2005-09-01 2005-09-01 Internal gear pump with filling piece

Publications (2)

Publication Number Publication Date
EP1760315A2 EP1760315A2 (en) 2007-03-07
EP1760315A3 true EP1760315A3 (en) 2014-06-11

Family

ID=37428608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017387.9A Withdrawn EP1760315A3 (en) 2005-09-01 2006-08-22 Internal gear pump with filler

Country Status (2)

Country Link
EP (1) EP1760315A3 (en)
DE (1) DE102005041579B4 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG1499U1 (en) * 2011-03-16 2011-10-31 "Капрони" Ад A balanced hydraulic gear pump
DE102011078064A1 (en) 2011-06-24 2012-12-27 Robert Bosch Gmbh Internal gear pump
DE102012001462A1 (en) 2012-01-25 2013-07-25 Robert Bosch Gmbh Internal gear pump comprises control bevel, which is provided in area of sealing segment side facing hollow wheel, and is extended out in peripheral direction of hollow wheel and broadens opening area of control groove
DE102012218397A1 (en) 2012-10-10 2014-04-10 Robert Bosch Gmbh Hydrostatic machine such as ring gear machine, comprises several sound-damping elements which are arranged in the sound transfer path formed between the machine housing and the rotating displacer unit
CN103883516A (en) * 2014-02-24 2014-06-25 江苏驰翔精密齿轮有限公司 Fixed-displacement internal-meshing gear pump
CN103883517A (en) * 2014-02-24 2014-06-25 江苏驰翔精密齿轮有限公司 Fixed-displacement internal gear pump structure
DE102014103958A1 (en) * 2014-03-21 2015-09-24 Eckerle Industrie-Elektronik Gmbh Motor-pump unit
DE102019217049A1 (en) * 2019-11-06 2021-05-06 Robert Bosch Gmbh Internal gear machine with hydrostatically supported inner sealing part on the filler piece
US11506200B1 (en) 2020-02-27 2022-11-22 Parker-Hannifin Corporation Hydraulic gear pump with radial pressure compensator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322239A1 (en) * 1993-07-03 1995-01-19 Eckerle Rexroth Gmbh Co Kg Internal gear machine (pump or motor)
DE19854155A1 (en) * 1997-12-03 1999-06-10 Luk Getriebe Systeme Gmbh Hydraulic gear pump or motor for vehicle units

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553014A1 (en) * 1963-03-04 1969-08-21 Otto Eckerle Equipment on pumps to reduce the development of noise
DE19613833B4 (en) * 1996-04-06 2004-12-09 Bosch Rexroth Ag Internal gear machine, in particular internal gear pump
DE10334954A1 (en) * 2003-07-31 2005-02-24 Voith Turbo Gmbh & Co. Kg hydraulic pump

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322239A1 (en) * 1993-07-03 1995-01-19 Eckerle Rexroth Gmbh Co Kg Internal gear machine (pump or motor)
DE19854155A1 (en) * 1997-12-03 1999-06-10 Luk Getriebe Systeme Gmbh Hydraulic gear pump or motor for vehicle units

Also Published As

Publication number Publication date
DE102005041579A1 (en) 2007-03-08
DE102005041579B4 (en) 2015-06-11
EP1760315A2 (en) 2007-03-07

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