EP1081382A3 - Zahnradmaschine - Google Patents

Zahnradmaschine Download PDF

Info

Publication number
EP1081382A3
EP1081382A3 EP00117962A EP00117962A EP1081382A3 EP 1081382 A3 EP1081382 A3 EP 1081382A3 EP 00117962 A EP00117962 A EP 00117962A EP 00117962 A EP00117962 A EP 00117962A EP 1081382 A3 EP1081382 A3 EP 1081382A3
Authority
EP
European Patent Office
Prior art keywords
seal
shaft
gear
axis
axial field
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
EP00117962A
Other languages
English (en)
French (fr)
Other versions
EP1081382A2 (de
EP1081382B1 (de
Inventor
Klaus Griese
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1081382A2 publication Critical patent/EP1081382A2/de
Publication of EP1081382A3 publication Critical patent/EP1081382A3/de
Application granted granted Critical
Publication of EP1081382B1 publication Critical patent/EP1081382B1/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
    • F04C15/0023—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • General Details Of Gearings (AREA)
  • Gear Transmission (AREA)

Abstract

Die Erfindung geht aus von einer Außenzahnradmaschine mit einem ersten und einem zweiten Zahnrad (16, 18), wobei das erste Zahnrad (16) auf einer Welle (24) befestigt ist, die auf einer An- Abtriebsseite (20) nach außen geführt und über eine Wellendichtung (22) abgedichtet ist, und das zweite Zahnrad (18) auf einer Achse (26) angeordnet ist, und mit einer ersten Axialfelddichtung (28), die auf der der An- Abtriebsseite (20) gegenüberliegenden Seite (30) der Zahnräder (16, 18) ein zur Welle (24) und zur Achse (26) offenes Feld (84) auf einer Niederdruckseite (34) begrenzt, und mit einer zweiten Axialfelddichtung (36) auf der An- Abtriebsseite (20).
Es wird vorgeschlagen, daß die zweite Axialfelddichtung (36) einen Wellendichtraum (40) vor der Wellendichtung (22) zu einer Hochdruckseite (42) und zu einer Niederdruckseite (44) abdichtet, und der Wellendichtraum (40) über einen Kanal (46) mit einem in Richtung Wellendichtraum (40) schließenden Rückschlagventil (48) mit dem von der ersten Axialfelddichtung (28) begrenzten, zur Welle (24) und zur Achse (26) offenen Feld (84) verbunden ist.
EP00117962A 1999-09-04 2000-08-22 Zahnradmaschine Expired - Lifetime EP1081382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19942297A DE19942297A1 (de) 1999-09-04 1999-09-04 Zahnradmaschine
DE19942297 1999-09-04

Publications (3)

Publication Number Publication Date
EP1081382A2 EP1081382A2 (de) 2001-03-07
EP1081382A3 true EP1081382A3 (de) 2002-08-07
EP1081382B1 EP1081382B1 (de) 2005-07-20

Family

ID=7920844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117962A Expired - Lifetime EP1081382B1 (de) 1999-09-04 2000-08-22 Zahnradmaschine

Country Status (2)

Country Link
EP (1) EP1081382B1 (de)
DE (2) DE19942297A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056909A1 (de) * 2005-11-29 2007-05-31 Bosch Rexroth Ag Hydraulische Zahnradmaschine
DE202009001525U1 (de) * 2009-02-06 2010-06-24 Inatec Gmbh Zahnradpumpe
DE102010055682A1 (de) 2010-12-22 2012-06-28 Robert Bosch Gmbh Gehäuse einer Außenzahnradmaschine und Außenzahnradmaschine
DE102016225883A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Zahnradpumpe für ein Abwärmerückgewinnungssystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487732A (en) * 1948-02-19 1949-11-08 Borg Warner Pump-pressure loaded-with unloading relief valve
DE1155339B (de) * 1956-09-06 1963-10-03 Bosch Gmbh Robert Zahnradfluessigkeitspumpe
DE2847711A1 (de) * 1978-11-03 1980-05-14 Bosch Gmbh Robert Zahnradmaschine (pumpe oder hydromotor)
DE2917384A1 (de) * 1979-04-28 1980-10-30 Zahnradfabrik Friedrichshafen Hydraulikpumpe, insbesondere fluegelzellenpumpe
EP0563608A1 (de) * 1992-03-27 1993-10-06 Robert Bosch Gmbh Reversierbare Zahnradmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156191A (en) * 1960-12-23 1964-11-10 Clark Equipment Co Sealing means for pumps and motors
DE3938135A1 (de) * 1989-11-16 1991-05-23 Bosch Gmbh Robert Zahnradpumpe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487732A (en) * 1948-02-19 1949-11-08 Borg Warner Pump-pressure loaded-with unloading relief valve
DE1155339B (de) * 1956-09-06 1963-10-03 Bosch Gmbh Robert Zahnradfluessigkeitspumpe
DE2847711A1 (de) * 1978-11-03 1980-05-14 Bosch Gmbh Robert Zahnradmaschine (pumpe oder hydromotor)
DE2917384A1 (de) * 1979-04-28 1980-10-30 Zahnradfabrik Friedrichshafen Hydraulikpumpe, insbesondere fluegelzellenpumpe
EP0563608A1 (de) * 1992-03-27 1993-10-06 Robert Bosch Gmbh Reversierbare Zahnradmaschine

Also Published As

Publication number Publication date
DE50010738D1 (de) 2005-08-25
DE19942297A1 (de) 2001-03-08
EP1081382A2 (de) 2001-03-07
EP1081382B1 (de) 2005-07-20

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