EP1101948A2 - Pompe de refroidissement à eau, en particulier pour moteur à combustion interne - Google Patents

Pompe de refroidissement à eau, en particulier pour moteur à combustion interne Download PDF

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Publication number
EP1101948A2
EP1101948A2 EP00890333A EP00890333A EP1101948A2 EP 1101948 A2 EP1101948 A2 EP 1101948A2 EP 00890333 A EP00890333 A EP 00890333A EP 00890333 A EP00890333 A EP 00890333A EP 1101948 A2 EP1101948 A2 EP 1101948A2
Authority
EP
European Patent Office
Prior art keywords
leakage
cooling water
water pump
space
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
EP00890333A
Other languages
German (de)
English (en)
Other versions
EP1101948A3 (fr
EP1101948B1 (fr
Inventor
Martin Schober
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.)
TCG Unitech AG
Original Assignee
TCG Unitech 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3524911&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1101948(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by TCG Unitech AG filed Critical TCG Unitech AG
Priority to AT00890333T priority Critical patent/ATE251721T1/de
Publication of EP1101948A2 publication Critical patent/EP1101948A2/fr
Publication of EP1101948A3 publication Critical patent/EP1101948A3/fr
Application granted granted Critical
Publication of EP1101948B1 publication Critical patent/EP1101948B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings 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

  • the invention relates to a cooling water pump, in particular for an internal combustion engine, with a housing that has at least one bearing for mounting a pump shaft has, with a sealing element for sealing the bearing opposite a working space containing the cooling medium, as well as one in the housing arranged leakage space for receiving coolant through the Sealing element has passed through.
  • Cooling water pumps are relatively difficult working conditions in motor vehicles exposed. There are long downtimes and large temperature fluctuations to cope with, and it becomes maintenance-free operation over one provided a long period. It has turned out to be almost impossible in practice proven to achieve a completely leak-free seal of the pump, that means it always has to leak small amounts of cooling medium be counted. However, it is undesirable to easily leak this amount to leave the pump, as this gives the impression of a defect is awakened.
  • a cooling water pump which one in the direction of the pump shaft axis has demoldable leakage space, which is in the installation position below the pump shaft.
  • the leakage space has an opening to the outside, which are at least partially closed by a cover, for example a metal foil is. Only a small opening remains through which the water vapor can escape or through which in the event of failure of the mechanical seal the escaping Cooling water can overflow. Since the leak chamber must be tight, it is necessary to glue the lid and additionally caulk it. Around the leakage chamber with the space between the bearing and the mechanical seal to connect, an additional connection hole is necessary. The The production of this leakage space is therefore very complex and cost-intensive.
  • the publication DE 28 46 950 B1 describes a coolant pump for a liquid-cooled internal combustion engine, with a leakage chamber in the pump housing for receiving coolant that has passed through the sealing element.
  • the leakage chamber designed as an evaporation chamber is drilled Blind hole executed, which is covered by a plug. For Making the leakage chamber requires additional steps, what increases the manufacturing effort.
  • the leakage space in one casting process can be produced together with the housing, the leakage space through one essentially transversely, preferably in a normal plane to the pump shaft axis pulled slide is demoldable.
  • the pump shaft pullable slide can preferably on the suction side arranged leakage space produced in one operation with the housing become.
  • the slider is also shaped so that it is the connecting channel between the leakage space and a connection space between the bearing and Manufactures mechanical seal.
  • the opening - in the installed position of the cooling water pump considered - arranged at the highest point of the leakage space is, wherein the opening is preferably surrounded by a flange surface.
  • the Installation position of the leakage space is directed essentially obliquely upwards, so that no cooling water can escape through the leakage space.
  • the Water vapor can escape unhindered through the opening.
  • the leakage space is drawn as high as possible, the opening preferably is at least partially above the pump shaft axis. To everyone To avoid steam accumulation, it is advantageous if the cross section of the leakage space extended towards the opening.
  • an leakage hole leading outwards emerges from the leakage chamber. Due to the leakage hole, the bearing will fail if the mechanical seal fails overflowing cooling water protected.
  • the leakage hole is there preferably below the center of the bearing, so that overflowing cooling water can drain out of the leakage chamber through the leakage hole.
  • a special one simple manufacture is possible if the leakage hole is parallel to the Pump shaft axis is arranged. The leakage hole can thus be in the opening direction of the die casting tool for the housing.
  • the leakage space produced according to the invention can be used both in cooling water pumps be provided in which the suction chamber of the cooling water pump and the bearing on the same side, as well as with cooling water pumps where suction chamber and bearing are on different sides of the impeller.
  • the cooling water pump shown in Fig. 1 has a housing 2 in which a bearing 3 formed by roller bearings is arranged, which has a pump shaft 4 rotatably.
  • An impeller 5 is known in the pump shaft 4 Way attached.
  • the impeller 5 sucks cooling medium, such as cooling water, in one Suction area 6, and pushes it in the radial direction into one in the housing 2 trained pump chamber 7.
  • the pump chamber 7 is not one shown cover, as it is attached to the housing 2, closed.
  • a sealing element 8 for sealing of the cooling medium is provided, this sealing element 8 for example is designed as a mechanical seal. Through this sealing element 8 prevents cooling medium from the pump chamber 7 to the bearing 3 and on can get outside.
  • a connecting space 9 is arranged, one of which is directed downwards Connection channel 10 goes out and in a likewise in the housing 2 on the suction side arranged leakage space 11 opens.
  • the leakage space 11 has on it - viewed in the installation position of water pump 1 - highest opening 12, which is surrounded by a flange surface 13.
  • the leakage space 11 is in the Housing 2 arranged so that its walls 14 in the installed position of the water pump 1 both to a horizontal plane 15 and to a vertical axis 16 are inclined.
  • the leakage space 11 can be produced by a lateral slide which is transverse to the Pump shaft axis 4a, preferably radial or tangential to pump shaft 4, thus preferably essentially in a normal plane 20 to the pump shaft axis 4a is pulled.
  • the connecting channel 10 is also suitable through the shaped slider malleable. This facilitates the creation of the leakage space 11 essential.
  • a predetermined amount of cooling medium can be collected in the leakage space 11 become.
  • the cooling medium collected in the leakage space 11 can be heated evaporate through the bearing heat through the opening 12.
  • To the steam outlet To facilitate, the leakage space 11 is shaped so that the walls 14 in Expand towards the opening 12.
  • the opening 12 In order to spill over of the trapped while the vehicle is traveling To prevent cooling medium from the opening 12, the leakage space 11 is possible pulled up, the opening 12 preferably at least partially above the level of the pump shaft axis 4a - viewed in a normal plane 20 is located on the pump shaft axis 4a.
  • the housing 2 To the camp 3 before overflowing, the housing 2 has one in the direction of the pump shaft axis 4a formed leakage hole 17, which from the leakage space 11th leads to the outside.
  • the leakage hole 17 is preferably located below a horizontal plane 15a running through the bearing center 3a. Through this Leakage hole 17, the coolant can drain to the outside.
  • the leakage hole 17 can together with the housing 2 by the die casting tool for the housing 2 are manufactured.
  • the suction area 7 of the cooling water pump is located 1 on the same side of the impeller 5 as the bearing 3 and the sealing element 8.
  • the leakage space 11 shaped according to the invention can of course, however also be provided in cooling water pumps 2, in which the suction area 6 and the sealing element 8 are located on different sides of the impeller 5.
  • the present invention makes it possible to manufacture a cooling water pump 1 to reduce significantly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
EP00890333A 1999-11-19 2000-11-09 Pompe de refroidissement à eau, en particulier pour moteur à combustion interne Revoked EP1101948B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT00890333T ATE251721T1 (de) 1999-11-19 2000-11-09 Kühlwasserpumpe, insbesondere für eine brennkraftmaschine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT196699 1999-11-19
AT196699 1999-11-19

Publications (3)

Publication Number Publication Date
EP1101948A2 true EP1101948A2 (fr) 2001-05-23
EP1101948A3 EP1101948A3 (fr) 2002-01-02
EP1101948B1 EP1101948B1 (fr) 2003-10-08

Family

ID=3524911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00890333A Revoked EP1101948B1 (fr) 1999-11-19 2000-11-09 Pompe de refroidissement à eau, en particulier pour moteur à combustion interne

Country Status (4)

Country Link
US (1) US6446699B1 (fr)
EP (1) EP1101948B1 (fr)
AT (1) ATE251721T1 (fr)
DE (1) DE50003984D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10100710B2 (en) 2014-10-10 2018-10-16 Ford Global Technologies, Llc Detachable water pump reservoir

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845729B1 (fr) * 2002-10-14 2006-04-07 Renault Sa Agencement de pompe hydraulique dans un moteur, et pompe pour un tel agencement
US20060078384A1 (en) * 2004-09-23 2006-04-13 Jacob William G Pavement marking remover with/for skid steer tractor
DE102014215642A1 (de) 2014-08-07 2016-02-11 Volkswagen Aktiengesellschaft Pumpeinrichtung
USD911390S1 (en) * 2017-09-06 2021-02-23 Holley Performance Products, Inc. Cooling manifold
USD900873S1 (en) * 2018-08-02 2020-11-03 Holley Performance Products, Inc. Cooling manifold
USD916136S1 (en) * 2018-08-02 2021-04-13 Holley Performance Products, Inc. Cooling manifold
USD901539S1 (en) * 2018-08-02 2020-11-10 Holley Performance Products, Inc. Cooling manifold
USD902256S1 (en) * 2019-09-27 2020-11-17 Holley Performance Products, Inc. Cooling manifold
USD908735S1 (en) * 2019-09-27 2021-01-26 Holley Performance Products, Inc. Cooling manifold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846950B1 (de) 1978-10-27 1979-05-31 Bayerische Motoren Werke Ag Kuehlmittelpumpe fuer fluessigkeitsgekuehlte Brennkraftmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001517A (en) * 1960-03-08 1961-09-26 Gen Motors Corp Centrifugal pump
US5125795A (en) 1989-10-30 1992-06-30 Aisan Kogyo Kabushiki Kaisha Water pump
DE4119131A1 (de) * 1991-06-11 1992-12-17 Kloeckner Humboldt Deutz Ag Kreiselpumpe
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846950B1 (de) 1978-10-27 1979-05-31 Bayerische Motoren Werke Ag Kuehlmittelpumpe fuer fluessigkeitsgekuehlte Brennkraftmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
österreichischen Patentanmeldung AT 77399 A

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10100710B2 (en) 2014-10-10 2018-10-16 Ford Global Technologies, Llc Detachable water pump reservoir

Also Published As

Publication number Publication date
DE50003984D1 (de) 2003-11-13
EP1101948A3 (fr) 2002-01-02
ATE251721T1 (de) 2003-10-15
US6446699B1 (en) 2002-09-10
EP1101948B1 (fr) 2003-10-08

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