EP2216550A3 - Gear wheel pump with shaft seal - Google Patents

Gear wheel pump with shaft seal Download PDF

Info

Publication number
EP2216550A3
EP2216550A3 EP10001269.9A EP10001269A EP2216550A3 EP 2216550 A3 EP2216550 A3 EP 2216550A3 EP 10001269 A EP10001269 A EP 10001269A EP 2216550 A3 EP2216550 A3 EP 2216550A3
Authority
EP
European Patent Office
Prior art keywords
shaft seal
gear
housing cover
pump
drive
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
EP10001269.9A
Other languages
German (de)
French (fr)
Other versions
EP2216550A2 (en
EP2216550B1 (en
Inventor
Michael Rothen
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to PL10001269T priority Critical patent/PL2216550T3/en
Publication of EP2216550A2 publication Critical patent/EP2216550A2/en
Publication of EP2216550A3 publication Critical patent/EP2216550A3/en
Application granted granted Critical
Publication of EP2216550B1 publication Critical patent/EP2216550B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates

Landscapes

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

Abstract

Zahnradpumpe mit mindestens zwei im Außeneingriff kämmenden Zahnrädern (16A, 16B), die mit ihren Flachseiten direkt oder indirekt an Gehäusedeckeln (14A, 14B) der Zahnradpumpe anliegen. Zumindest ein Antriebszahnrad (16A) ist mit Wellenzapfen versehen und drehfest damit verbunden, wobei die Wellenzapfen beidseitig des mindestens einen Antriebszahnrades angeordnet und in dem jeweils benachbarten Gehäusedeckel (14A, 14B) drehgelagert sind. Einer der Wellenzapfen des Antriebszahnrades (16A) ist verlängert und als Antriebsdrehzapfen (18A) durch den benachbarten Gehäusedeckel (14A) nach außen geführt. Um das Austreten von zu pumpendem Fluid zu verhindern, ist eine Wellendichtung (26) für den Antriebsdrehzapfen (18A) vorgesehen. Die Wellendichtung ist auf der den Pumpenzahnrädern (16A, 16B) zugewandten Innenseite des von dem Antriebsdrehzapfen (18A) durchdrungenen ersten Gehäusedeckels (14A) in einer zahnradseitigen Aussparung (24) des Gehäusedeckels (14A) angeordnet. Erfindungsgemäß ist diese Aussparung dabei mit einer auf der dem Pumpenraum zugewandten Seite angeordneten Vorkammer (24A) versehen, wodurch die Wellendichtung (26) mit ständig sich austauschendem zu pumpendem Fluid versorgbar ist.

Figure imgaf001
Gear pump with at least two externally meshing gears (16A, 16B), which bear with their flat sides directly or indirectly on housing covers (14A, 14B) of the gear pump. At least one drive gear (16A) is provided with shaft journals and non-rotatably connected thereto, wherein the shaft journals are arranged on both sides of the at least one drive gear wheel and are rotatably mounted in the respectively adjacent housing cover (14A, 14B). One of the shaft journals of the drive gear (16A) is extended and guided outwardly as a drive pivot (18A) through the adjacent housing cover (14A). To prevent the escape of fluid to be pumped, a shaft seal (26) is provided for the drive pivot (18A). The shaft seal is arranged on the inside of the pump housing (16A, 16B) facing the inner side of the drive pivot (18A) penetrated first housing cover (14A) in a gear-side recess (24) of the housing cover (14A). According to the invention, this recess is provided with an antechamber (24A) arranged on the side facing the pump chamber, whereby the shaft seal (26) can be supplied with constantly exchanging fluid to be pumped.
Figure imgaf001
EP10001269.9A 2009-02-06 2010-02-08 Gear wheel pump with shaft seal Active EP2216550B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10001269T PL2216550T3 (en) 2009-02-06 2010-02-08 Gear wheel pump with shaft seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202009001525U DE202009001525U1 (en) 2009-02-06 2009-02-06 gear pump

Publications (3)

Publication Number Publication Date
EP2216550A2 EP2216550A2 (en) 2010-08-11
EP2216550A3 true EP2216550A3 (en) 2016-07-27
EP2216550B1 EP2216550B1 (en) 2018-07-25

Family

ID=41838544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10001269.9A Active EP2216550B1 (en) 2009-02-06 2010-02-08 Gear wheel pump with shaft seal

Country Status (4)

Country Link
EP (1) EP2216550B1 (en)
DE (1) DE202009001525U1 (en)
ES (1) ES2688647T3 (en)
PL (1) PL2216550T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015006862U1 (en) 2015-10-02 2015-10-23 Beinlich Pumpen Gmbh Pump for hydraulic media
DE202023000769U1 (en) 2023-04-06 2023-08-09 SKTEC GmbH Gear pump with sealing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312868A1 (en) * 1983-04-09 1984-10-18 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden HYDROPUMP FOR LOW-VISCOSE CONVEYOR MEDIA
WO1997042415A1 (en) * 1996-05-08 1997-11-13 Ecolab Inc. Shaft seal
EP1081382A2 (en) * 1999-09-04 2001-03-07 Robert Bosch Gmbh Gear machine
JP3169146B2 (en) * 1992-08-06 2001-05-21 株式会社豊田自動織機製作所 Vehicle heating system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1822807U (en) * 1959-01-15 1960-12-01 Kirk & Kompagni GEAR PUMP FOR HOMOGENIZERS.
DE1927514U (en) * 1965-08-25 1965-11-18 Bayerische Motoren Werke Ag HEATING AND VENTILATION DEVICE FOR INSTALLATION IN FRONT OF OR UNDER THE DASHBOARD OF MOTOR VEHICLES.
DE6924726U (en) * 1969-06-19 1969-10-16 V D O Tachometer Werke Adolf S GEAR PUMP OR MOTOR
DE2411492C2 (en) 1974-03-11 1984-07-26 Robert Bosch Gmbh, 7000 Stuttgart Gear pump
DE8101898U1 (en) 1981-01-27 1982-07-15 Robert Bosch Gmbh, 7000 Stuttgart GEAR MACHINE (PUMPS OR MOTOR)
WO2001086150A1 (en) * 2000-05-08 2001-11-15 Pomtava Sa Metering pump for liquid products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312868A1 (en) * 1983-04-09 1984-10-18 Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden HYDROPUMP FOR LOW-VISCOSE CONVEYOR MEDIA
JP3169146B2 (en) * 1992-08-06 2001-05-21 株式会社豊田自動織機製作所 Vehicle heating system
WO1997042415A1 (en) * 1996-05-08 1997-11-13 Ecolab Inc. Shaft seal
EP1081382A2 (en) * 1999-09-04 2001-03-07 Robert Bosch Gmbh Gear machine

Also Published As

Publication number Publication date
PL2216550T3 (en) 2018-12-31
DE202009001525U1 (en) 2010-06-24
ES2688647T3 (en) 2018-11-06
EP2216550A2 (en) 2010-08-11
EP2216550B1 (en) 2018-07-25

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