EP0669465A3 - Bearing arrangement for a viscous fluid pump. - Google Patents

Bearing arrangement for a viscous fluid pump. Download PDF

Info

Publication number
EP0669465A3
EP0669465A3 EP95107891A EP95107891A EP0669465A3 EP 0669465 A3 EP0669465 A3 EP 0669465A3 EP 95107891 A EP95107891 A EP 95107891A EP 95107891 A EP95107891 A EP 95107891A EP 0669465 A3 EP0669465 A3 EP 0669465A3
Authority
EP
European Patent Office
Prior art keywords
pump
bearing
zone
fluid pump
viscous fluid
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
EP95107891A
Other languages
German (de)
French (fr)
Other versions
EP0669465B1 (en
EP0669465A2 (en
Inventor
Peter Dipl Ing Blume
Roger Dr Ing Stehr
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.)
Maag Pump Systems AG
Original Assignee
Maag Pump Systems 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
Priority to EP95107891A priority Critical patent/EP0669465B1/en
Priority to DE59501083T priority patent/DE59501083D1/en
Priority to AT95107891T priority patent/ATE161075T1/en
Priority to ES95107891T priority patent/ES2110799T3/en
Application filed by Maag Pump Systems AG filed Critical Maag Pump Systems AG
Publication of EP0669465A2 publication Critical patent/EP0669465A2/en
Publication of EP0669465A3 publication Critical patent/EP0669465A3/en
Priority to JP8535234A priority patent/JPH11505910A/en
Priority to PCT/CH1996/000164 priority patent/WO1996037705A1/en
Priority to US08/952,649 priority patent/US6123531A/en
Priority to AU53304/96A priority patent/AU5330496A/en
Application granted granted Critical
Publication of EP0669465B1 publication Critical patent/EP0669465B1/en
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
    • F04C15/0034—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
    • 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
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • 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
    • F04C15/0088—Lubrication
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/56—Bearing bushings or details thereof

Abstract

The bearing acts on a pump shaft (1) within the pump. At least on side of the low pressure side of the bearing is arranged a collection or release zone for fluid which has leaked through the bearing. At least two channels (13,15) join the zone to the suction side of the pump. One at least of these channels can be shut off independently to one another. They can be of different diameters or cross-sectional areas, and the zone itself can consist of an annular chamber adjacent to the shaft. It can be contained at least partly in the plain bearing itself (9) or the pump cover.
EP95107891A 1995-05-24 1995-05-24 Bearing arrangement for a viscous fluid pump Expired - Lifetime EP0669465B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP95107891A EP0669465B1 (en) 1995-05-24 1995-05-24 Bearing arrangement for a viscous fluid pump
DE59501083T DE59501083D1 (en) 1995-05-24 1995-05-24 Bearing arrangement for a pump shaft of a pump for conveying media with different viscosities
AT95107891T ATE161075T1 (en) 1995-05-24 1995-05-24 BEARING ARRANGEMENT FOR A PUMP SHAFT OF A PUMP FOR DELIVERING MEDIA WITH DIFFERENT VISCOSITIES
ES95107891T ES2110799T3 (en) 1995-05-24 1995-05-24 BEARING ARRANGEMENT FOR A SHAFT OF A PUMP TO IMPELLER MEDIA WITH DIFFERENT VISCOSITY.
JP8535234A JPH11505910A (en) 1995-05-24 1996-04-29 Bearing device for pump shaft of pump for conveying media with different viscosities
AU53304/96A AU5330496A (en) 1995-05-24 1996-04-29 Bearing system for the shaft of a pump for conveying media f differing viscosity
PCT/CH1996/000164 WO1996037705A1 (en) 1995-05-24 1996-04-29 Bearing system for the shaft of a pump for conveying media of differing viscosity
US08/952,649 US6123531A (en) 1995-05-24 1996-04-29 Bearing arrangement for a pump shaft of a pump for delivering media of different viscosities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107891A EP0669465B1 (en) 1995-05-24 1995-05-24 Bearing arrangement for a viscous fluid pump

Publications (3)

Publication Number Publication Date
EP0669465A2 EP0669465A2 (en) 1995-08-30
EP0669465A3 true EP0669465A3 (en) 1995-12-20
EP0669465B1 EP0669465B1 (en) 1997-12-10

Family

ID=8219282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107891A Expired - Lifetime EP0669465B1 (en) 1995-05-24 1995-05-24 Bearing arrangement for a viscous fluid pump

Country Status (8)

Country Link
US (1) US6123531A (en)
EP (1) EP0669465B1 (en)
JP (1) JPH11505910A (en)
AT (1) ATE161075T1 (en)
AU (1) AU5330496A (en)
DE (1) DE59501083D1 (en)
ES (1) ES2110799T3 (en)
WO (1) WO1996037705A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7137789B2 (en) * 1997-07-18 2006-11-21 Rpm Industries, Inc. Vent for reducing seal pressure in pump assembly
US6544008B1 (en) * 1997-07-18 2003-04-08 John K. Apostolides Internal vent for reducing seal pressure in prelubrication pump assembly
DE19833374B4 (en) * 1998-07-24 2007-03-22 Zf Friedrichshafen Ag displacement
DE19835122A1 (en) * 1998-08-04 2000-02-10 Zahnradfabrik Friedrichshafen Vane cell pump for delivering pressure fluid from tank to user has housing containing rotor connected to drive shaft located in housing via shaft sealing ring
DE10014548A1 (en) * 2000-03-23 2001-09-27 Bosch Gmbh Robert Gear pump for feeding liquid has connection between coupling cavity and compression cavity
DE10031470A1 (en) * 2000-06-28 2002-01-10 Krupp Werner & Pfleiderer Gmbh gear pump
US6685453B2 (en) 2001-06-14 2004-02-03 Parker-Hannifin Corporation Fluid transfer machine with drive shaft lubrication and cooling
EP1855007A1 (en) * 2006-05-12 2007-11-14 Maag Pump Systems Textron AG Gear pump
KR100947715B1 (en) * 2007-05-07 2010-03-16 나종갑 Gear pump for ink
WO2010035916A1 (en) * 2008-09-25 2010-04-01 Jong-Gap Na Pump having bypass route
CN102959245B (en) * 2010-07-02 2016-01-06 欧瑞康纺织有限及两合公司 Gear pump
DE102014111721A1 (en) 2014-08-18 2016-02-18 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Fluidbeaufschlagungsvorrichtung for a transmission for a motor vehicle
DE102016225847A1 (en) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Fluid pump for a waste heat recovery system
US11143183B2 (en) 2019-03-26 2021-10-12 Hamilton Sundstrand Corporation Gear pump bearing with hybrid pad shutoff
EP3862532A1 (en) * 2020-02-07 2021-08-11 Fluid-O-Tech S.r.l. Pump particularly for pumping a liquid such as ink, paint, glue or the like
US11703050B2 (en) * 2020-09-08 2023-07-18 Eaton Intelligent Power Limited Gear pump with self-lubricating bearings

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR572694A (en) * 1923-11-06 1924-06-11 Improvement in rotary pumps
DE442185C (en) * 1925-11-29 1927-03-22 Wolfgang Gaede Dr Device for vacuum rotary lobe pumps with oil seal to prevent oil from entering the vacuum line when the pump is at a standstill
DE544963C (en) * 1932-02-24 Pfeiffer Arthur Shaft seal for vacuum pumps, especially with rotary lobes
JPS5773883A (en) * 1980-10-27 1982-05-08 Katsuya Ishizaki Oil leakage preventing method for rotary pump
DE3135037A1 (en) * 1980-09-12 1982-09-23 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Discharge pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554262A (en) * 1975-06-24 1979-10-17 Kayaba Industry Co Ltd Gear pump
GB1572467A (en) * 1977-02-01 1980-07-30 Hamworthy Hydraulics Ltd Gear pumps
US4392798A (en) * 1981-04-03 1983-07-12 General Signal Corporation Gear pump or motor with low pressure bearing lubrication
GB2102074B (en) * 1981-07-18 1985-01-30 Dowty Group Services Positive-displacement fluid-machines
US4737087A (en) * 1984-12-10 1988-04-12 Barmag Ag Drive shaft seal for gear pump and method
GB2169350B (en) * 1985-01-05 1989-06-21 Hepworth Plastics Ltd Gear pumps
EP0558888B1 (en) * 1992-03-06 1996-09-11 HERMANN BERSTORFF Maschinenbau GmbH Device for the treatment of highly viscous rubber or thermoplastic synthetic material
EP0597271B1 (en) * 1992-10-28 1998-06-03 Maag Pump Systems Textron AG Arrangement for treating thermoplastic melt with a gear pump
US5641281A (en) * 1995-11-20 1997-06-24 Lci Corporation Lubricating means for a gear pump
EP0715078B1 (en) * 1996-02-09 2001-11-07 Maag Pump Systems Textron AG Gear Pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE544963C (en) * 1932-02-24 Pfeiffer Arthur Shaft seal for vacuum pumps, especially with rotary lobes
FR572694A (en) * 1923-11-06 1924-06-11 Improvement in rotary pumps
DE442185C (en) * 1925-11-29 1927-03-22 Wolfgang Gaede Dr Device for vacuum rotary lobe pumps with oil seal to prevent oil from entering the vacuum line when the pump is at a standstill
DE3135037A1 (en) * 1980-09-12 1982-09-23 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Discharge pump
JPS5773883A (en) * 1980-10-27 1982-05-08 Katsuya Ishizaki Oil leakage preventing method for rotary pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 157 (M - 150) 18 August 1982 (1982-08-18) *

Also Published As

Publication number Publication date
EP0669465B1 (en) 1997-12-10
AU5330496A (en) 1996-12-11
JPH11505910A (en) 1999-05-25
ATE161075T1 (en) 1997-12-15
EP0669465A2 (en) 1995-08-30
ES2110799T3 (en) 1998-02-16
DE59501083D1 (en) 1998-01-22
US6123531A (en) 2000-09-26
WO1996037705A1 (en) 1996-11-28

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