EP1319843A2 - Pompe à liquide de refroidissement - Google Patents

Pompe à liquide de refroidissement Download PDF

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Publication number
EP1319843A2
EP1319843A2 EP02024859A EP02024859A EP1319843A2 EP 1319843 A2 EP1319843 A2 EP 1319843A2 EP 02024859 A EP02024859 A EP 02024859A EP 02024859 A EP02024859 A EP 02024859A EP 1319843 A2 EP1319843 A2 EP 1319843A2
Authority
EP
European Patent Office
Prior art keywords
coolant
collecting chamber
coolant pump
chamber
housing
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
EP02024859A
Other languages
German (de)
English (en)
Other versions
EP1319843A3 (fr
EP1319843B1 (fr
Inventor
Norbert Dembinski
Reiner Reisacher
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1319843A2 publication Critical patent/EP1319843A2/fr
Publication of EP1319843A3 publication Critical patent/EP1319843A3/fr
Application granted granted Critical
Publication of EP1319843B1 publication Critical patent/EP1319843B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • F05D2260/6022—Drainage of leakage having past a seal

Definitions

  • Coolant pump for a liquid-cooled internal combustion engine in particular on vehicles, comprising a housing with a recess for receiving a bearing of a shaft, on the one hand an impeller for coolant delivery and on the other hand carries a drive pulley arranged outside the housing, wherein further arranged in the recess between the bearing and an impeller side Mechanical seal a collecting chamber for one with the mechanical seal Given coolant leakage is provided, which by means of an outlet channel in a arranged in / on the housing is discharged via a ventilation duct communicates with the free environment.
  • Such a coolant pump is for example from the German patent DE 39 31 938 C2 known, wherein the coolant pump as a on a vehicle Drive unit serving internal combustion engine with a in the direction of travel Vehicle-aligned impeller shaft is equipped and also the collection chamber is arranged parallel to this shaft in / on the housing.
  • This collection chamber ends in a cup-shaped drive pulley with one in the drive pulley ventilation duct aligned in the direction of travel.
  • This collecting chamber can be closed at one end by a cover is also connected to the free one via a ventilation duct arranged in the cover Environment in connection.
  • this collecting chamber arranged transversely to the direction of travel with transverse to Ventilation channel arranged in the direction of travel can occur in the event of severe vehicle deceleration or cornering and an accidentally high leakage level of coolant via the ventilation duct emerge and in the vicinity of the coolant pump Leave traces that supposedly refer to a defective coolant pump.
  • the ventilation channel opens into the collecting chamber in such a chamber section, which at a change in speed as part of a movable drive unit serving internal combustion engine is free of collected coolant.
  • the area is advantageously a trace-causing coolant ejection avoided and associated with a misjudgment of the condition the coolant pump.
  • a particularly simple embodiment of the ventilation duct according to the invention is also achieved in that in / on the housing substantially parallel to Elongated shaft of the collecting chamber in the installed position of the coolant pump on the internal combustion engine in a side area facing away from the machine of the housing is arranged laterally below the shaft in such a way that as a ventilation channel an opening in one above a leakage level itself extending wall section of the collection chamber is used.
  • the invention further proposed that the collection chamber in one of the drive pulley facing a separate end limit adjacent End region has an extension formed in the direction of the shaft, into which the drainage channel of the collecting chamber opens and that the opening arranged in the longitudinal center area of the collecting chamber in the wall section is.
  • a particular advantage is associated with the ventilation duct according to the invention in that the opening as a hole of such diameter is designed to visually control the level of the leakage level in the Collection chamber is achieved. Frequent optical checks thus advantageously allow Way a reliable statement about the mechanical seal and thus also a safe decision about an early repair of the coolant pump.
  • the ventilation duct according to the invention also opens up the possibility of that the opening is designed as a hole of such a diameter, that a float submits a float over the hole in the collecting chamber is insertable and a connection to the buoyancy body, the indicator rod passing through the bore is elastic in the collecting chamber protruding spreader arms is provided to secure the float indicator.
  • the indicator rod with an is an inadmissible Level indicating the level of the leakage level.
  • a visual and / or an acoustic remote display be connected.
  • a coolant pump 1 shown in FIGS. 1 and 2 for a not shown Liquid-cooled internal combustion engine, in particular as part of a drive unit of a vehicle, comprises a housing 2 with a recess 3 for receiving a bearing 4 of a shaft 5, on the one hand an impeller 6 for coolant delivery and on the other hand a drive pulley arranged outside the housing 2 7 carries.
  • a housing 2 with a recess 3 for receiving a bearing 4 of a shaft 5, on the one hand an impeller 6 for coolant delivery and on the other hand a drive pulley arranged outside the housing 2 7 carries.
  • a drive pulley arranged outside the housing 2 7 carries.
  • a Mechanical seal 8 arranged on the impeller side has a collecting chamber 9 for a the mechanical seal 8 given coolant leakage provided by means of a Drain channel 10 discharged into a collection chamber 11 arranged in / on the housing 2 is in connection with the free environment via a ventilation duct 12 stands.
  • the ventilation channel 12 into the collection chamber 11 in such a chamber section opens out when there is a change in speed the internal combustion engine serving as part of a movable drive unit is free of collected coolant.
  • the connected to the chamber section of the collecting chamber 11, according to the invention Vent channel at least in sections to the direction of movement
  • Internal combustion engine arranged essentially transversely upwards or upwards.
  • FIGS. 1 and 2 A preferred arrangement of the collecting chamber 11 is shown in FIGS. 1 and 2 can be seen, an elongated in / on the housing 2 substantially parallel to the shaft 5 trained collection chamber 11 in the installed position of the coolant pump 1 the internal combustion engine, not shown, in a side region facing away from the machine of the housing 2 is arranged laterally below the shaft 5 in such a way that as a ventilation channel 12, an opening 13 in a above a leakage level 14 extending wall section 15 of the collecting chamber 11 is used.
  • the collection chamber 11 has one one of the drive disk 7 facing, separate end limit 16 adjacent End area an extension 17 formed in the direction of the shaft 5, in which the outlet channel 10 of the collecting chamber 9 opens.
  • This extension 17 serves as storage space for coolant displaced by a vehicle deceleration in the Collection chamber 11.
  • This arrangement also creates the possibility of the opening 13 in the longitudinal center region of the collecting chamber 11 in the wall section 15 to arrange. With the opening that can be arranged halfway through the collecting chamber 11 13 is for both vehicle deceleration and vehicle acceleration a coolant ejection through the opening 13 avoided.
  • the opening 13 is preferably for simple manufacture as a bore designed and of such a diameter that this bore 13th for optical control of the height of the leakage level 14 in the collection chamber 11 can serve.
  • the opening 13 designed as a bore can also be used be of such a diameter that a float 18 of a float indicator 19 can be inserted into the collecting chamber 11 via the bore 13 and is connected to the buoyancy body 18 and penetrates the bore 13
  • Display rod 20 with elastically protruding arms in the collecting chamber 11 21 is provided to secure the float display device 19th
  • the indicator bar 20 is an inadmissible level of Leakage mirror 14 indicating marking equipped for an optical control.
  • this marking can be done with an optical and / or an acoustic Remote display in operative connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP02024859A 2001-12-12 2002-11-08 Pompe à liquide de refroidissement Expired - Lifetime EP1319843B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10160876 2001-12-12
DE10160876A DE10160876A1 (de) 2001-12-12 2001-12-12 Kühlmittelpumpe für eine flüssigkeitsgekühlte Brennkraftmaschine, insbesondere auf Fahrzeugen

Publications (3)

Publication Number Publication Date
EP1319843A2 true EP1319843A2 (fr) 2003-06-18
EP1319843A3 EP1319843A3 (fr) 2004-01-28
EP1319843B1 EP1319843B1 (fr) 2006-02-08

Family

ID=7708834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02024859A Expired - Lifetime EP1319843B1 (fr) 2001-12-12 2002-11-08 Pompe à liquide de refroidissement

Country Status (2)

Country Link
EP (1) EP1319843B1 (fr)
DE (2) DE10160876A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2048367A1 (fr) * 2007-10-09 2009-04-15 Siemens Aktiengesellschaft Boîtier avec dispositif de refroidissement pour un turbocompresseur à gaz de processus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846950C2 (de) * 1978-10-27 1980-01-24 Bayerische Motoren Werke Ag, 8000 Muenchen Kühlmiftelpumpe für flüssigkeitsgekühlte Brennkraftmaschinen
JPH0623760Y2 (ja) * 1988-09-27 1994-06-22 アイシン精機株式会社 ウォータポンプ
IT1237768B (it) * 1989-11-15 1993-06-17 Piaggio Adriatica Spa Pompa di circolazione del liquido di raffreddamento per motori a combustione interna.
US5154576A (en) * 1991-09-30 1992-10-13 General Motors Corporation Coolant pump drip collector with improved capacity
DE4318158A1 (de) * 1992-08-10 1994-02-17 Volkswagen Ag Flüssigkeitspumpe, insbesondere Kühlmittelpumpe einer Brennkraftmaschine
US5226786A (en) * 1992-08-14 1993-07-13 General Motors Corporation Coolant pump drip collector with splash control
US5490762A (en) * 1995-03-21 1996-02-13 Caterpillar Inc. Weep hole plug for a fluid circulating pump
JPH0988592A (ja) * 1995-09-29 1997-03-31 Aisin Seiki Co Ltd ウオータポンプ
AT409530B (de) * 1999-04-29 2002-09-25 Tcg Unitech Ag Kühlwasserpumpe für eine brennkraftmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2048367A1 (fr) * 2007-10-09 2009-04-15 Siemens Aktiengesellschaft Boîtier avec dispositif de refroidissement pour un turbocompresseur à gaz de processus

Also Published As

Publication number Publication date
DE50205783D1 (de) 2006-04-20
EP1319843A3 (fr) 2004-01-28
DE10160876A1 (de) 2003-06-26
EP1319843B1 (fr) 2006-02-08

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