DE102022116192A1 - Bearing unit for an electric coolant pump - Google Patents
Bearing unit for an electric coolant pump Download PDFInfo
- Publication number
- DE102022116192A1 DE102022116192A1 DE102022116192.7A DE102022116192A DE102022116192A1 DE 102022116192 A1 DE102022116192 A1 DE 102022116192A1 DE 102022116192 A DE102022116192 A DE 102022116192A DE 102022116192 A1 DE102022116192 A1 DE 102022116192A1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- bearing unit
- housing
- coolant
- shaft
- 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.)
- Pending
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 28
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
- F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
- F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/107—Grooves for generating pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1085—Channels or passages to recirculate the liquid in the bearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C37/00—Cooling of bearings
- F16C37/002—Cooling of bearings of fluid bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
Abstract
Vorgeschlagen ist eine Lagereinheit (7) für eine elektrische Kühlmittelpumpe (1), umfassend eine Pumpenwelle (8) mit einem Wellenbund (14) und ein Lagergehäuse (9) mit einer Bohrung (16), in der die Pumpenwelle radial gleitgelagert ist, und mit Gehäuseschultern (18, 19), gegen die der Wellenbund beidseitig axial gleitgelagert ist. Die Lagereinheit ist für das Kühlmittel axial durchlässig, wobei die radiale und die axiale Gleitlagerschmierung durch das Kühlmittel erfolgt.What is proposed is a bearing unit (7) for an electric coolant pump (1), comprising a pump shaft (8) with a shaft collar (14) and a bearing housing (9) with a bore (16) in which the pump shaft is mounted in a radially sliding manner, and with Housing shoulders (18, 19), against which the shaft collar is axially slidably mounted on both sides. The bearing unit is axially permeable to the coolant, with the radial and axial plain bearing lubrication taking place through the coolant.
Description
Die Erfindung betrifft eine Lagereinheit für eine elektrische Kühlmittelpumpe, umfassend eine Pumpenwelle mit einem Wellenbund und ein Lagergehäuse mit einer Bohrung, in der die Pumpenwelle radial gleitgelagert ist, und mit Gehäuseschultern, gegen die der Wellenbund beidseitig axial gleitgelagert ist.The invention relates to a bearing unit for an electric coolant pump, comprising a pump shaft with a shaft collar and a bearing housing with a bore in which the pump shaft is radially slidably mounted, and with housing shoulders against which the shaft collar is axially slidably mounted on both sides.
Die
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Lagereinheit der eingangs genannten Art für eine elektrische Kühlmittelpumpe des Nassläufertyps anzugeben.The present invention is based on the object of specifying a bearing unit of the type mentioned for an electric coolant pump of the wet rotor type.
Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Anspruchs 1. Demnach soll die Lagereinheit für das Kühlmittel axial durchlässig sein, wobei die radiale und die axiale Gleitlagerschmierung durch das Kühlmittel erfolgt.The solution to this problem results from the features of claim 1. Accordingly, the bearing unit should be axially permeable to the coolant, with the radial and axial plain bearing lubrication taking place through the coolant.
Vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand der abhängigen Ansprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den Figuren, in denen ein Ausführungsbeispiel einer erfindungsgemäßen Lagereinheit dargestellt ist. Es zeigen:
-
1 : eine elektrische Kühlmittelpumpe mit der Lagereinheit in vereinfachtem Längsschnitt; -
2 : die Lagereinheit in perspektivischer Explosion; -
3 : die Lagereinheit im Längsschnitt; -
4 : die Ansicht A gemäß3 .
-
1 : an electric coolant pump with the bearing unit in a simplified longitudinal section; -
2 : the storage unit in perspective explosion; -
3 : the storage unit in longitudinal section; -
4 : according to viewA 3 .
Bei der Kühlmittelpumpe 1 handelt es sich um einen Nassläufer, und der Elektromotor ist dementsprechend vom Kühlmittel umspült, das die Kühlmittelpumpe 1 fördert.The coolant pump 1 is a wet rotor, and the electric motor is accordingly surrounded by the coolant that the coolant pump 1 delivers.
Die in den
Die Ringe 11 und 12 verlaufen beidseits eines Wellenbunds 14 der Pumpenwelle 8 und haben bezüglich der Wellendrehachse 15 zentrale Bohrungen 16 bzw. 17, die die Pumpenwelle 8 radial gleitlagern. Der Wellenbund 14 ist mittels Drehbearbeitung einteilig an der Pumpenwelle 8 angeformt. Das Lagergehäuse 9 hat Gehäuseschultern 18 und 19, die durch axiale Stirnseiten des einen Rings 11 einerseits und des weiteren Rings 13 andererseits gebildet sind und die den Wellenbund 14 axial gleitlagern. Die Lagerhülse 10 hat eine Gehäuseschulter 20, an der einerseits der weitere Ring 13 und andererseits der andere Ring 12 axial abgestützt sind.The
Die Schmierung sämtlicher, d.h. sowohl der radialen als auch der axialen Gleitlager der Pumpenwelle 8 erfolgt durch das von der Kühlmittelpumpe 1 geförderte Kühlmittel. Die Lagereinheit 7 ist zu diesem Zweck für das Kühlmittel axial durchlässig, das zum einen über die durchgehend hohlzylindrische Pumpenwelle 8 in den Pumpengehäuseabschnitt, in dem der Elektromotor aufgenommen ist, und zum anderen über Kühlmitteldurchlässe 21 ins Innere der Lagereinheit 7 gelangt. Die im wesentlichen kreisbogenförmigen Kühlmitteldurchlässe 21 durchsetzen beide Ringe 11 und 12 radial außerhalb ihrer jeweiligen Bohrung 16 bzw. 17.The lubrication of all, i.e. both the radial and axial plain bearings of the
Der Wellenbund 14 ist beidseitig axial hydrodynamisch gelagert, wobei sich der hydrodynamisch tragende Kühlmittelschmierfilm dadurch ausbildet, dass die Gehäuseschultern 18, 19 jeweils eine Vielzahl - vorliegend sieben - von sich radial erstreckenden Nuten 22 und dieselbe Vielzahl von sich axial erhebenden Kreisringsegmenten 23 haben, die sich mit den Nuten 22 umfänglich abwechseln. Die Axialerhebung der Kreisringsegmente 23 ist entsprechend der in
Alternativ kann die Kühlmittelzuführung ins Innere der Lagereinheit nur über einen Kühlmitteldurchlass im anderen Ring 12 erfolgen.Alternatively, the coolant can be fed into the interior of the storage unit only via a coolant passage in the
Die vorstehend erläuterte Lagereinheit 7 besteht vergleichsweise aus nur wenigen Einzelteilen, nämlich aus der Pumpenwelle 8, den beiden Ringen 11 uns 12, dem weiteren Ring 13 und der Lagerhülse 10.The
Nicht dargestellte Konstruktionsalternativen:
- - Das Flügelrad ist mittels einer Formschlussverbindung auf der Pumpenwelle befestigt.
- - Das Flügelrad ist mittels einer Schraubverbindung auf der Pumpenwelle befestigt.
- - Die Lagerhülse ist vom Kunststoff eines Kunststoff-Pumpengehäuses umspritzt.
- - Die Pumpenwelle ist mehrteilig, wobei der Wellenbund ein aufgepresster Ring ist.
- - Die Pumpenwelle ist mehrteilig und umfasst eine Kunststoffwelle und eine vom Kunststoff umspritzten Stahlring als Wellenbund
- - Die Pumpenwelle ist ein Fließpressteil.
- - The impeller is attached to the pump shaft using a positive connection.
- - The impeller is attached to the pump shaft using a screw connection.
- - The bearing sleeve is encapsulated in plastic from a plastic pump housing.
- - The pump shaft is made up of several parts, with the shaft collar being a pressed-on ring.
- - The pump shaft is made up of several parts and includes a plastic shaft and a plastic-coated steel ring as a shaft collar
- - The pump shaft is an extruded part.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102018123909 A1 [0002]DE 102018123909 A1 [0002]
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022116192.7A DE102022116192A1 (en) | 2022-06-29 | 2022-06-29 | Bearing unit for an electric coolant pump |
PCT/DE2023/100485 WO2024002423A1 (en) | 2022-06-29 | 2023-06-28 | Bearing unit for an electric coolant pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022116192.7A DE102022116192A1 (en) | 2022-06-29 | 2022-06-29 | Bearing unit for an electric coolant pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102022116192A1 true DE102022116192A1 (en) | 2024-01-04 |
Family
ID=87158030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102022116192.7A Pending DE102022116192A1 (en) | 2022-06-29 | 2022-06-29 | Bearing unit for an electric coolant pump |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102022116192A1 (en) |
WO (1) | WO2024002423A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307726A1 (en) | 1983-03-04 | 1984-09-06 | Klaus Union Armaturen | SLIDING BEARING FOR THE RUNNER OF A PUMP |
GB2409008A (en) | 2003-12-10 | 2005-06-15 | Echlin Do Brasil Ind E Com Ltd | A hydrodynamic bearing arrangement for a rotatable shaft |
DE102018123909A1 (en) | 2018-09-27 | 2020-04-02 | Nidec Gpm Gmbh | Compact plain bearing with sealing arrangement and water pump with the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2102507B1 (en) * | 2007-01-19 | 2010-08-18 | Daimler AG | Fluid flow machine |
JP6881645B1 (en) * | 2020-03-31 | 2021-06-02 | ダイキン工業株式会社 | Thrust gas bearings, centrifugal compressors with them, and refrigeration equipment with them |
-
2022
- 2022-06-29 DE DE102022116192.7A patent/DE102022116192A1/en active Pending
-
2023
- 2023-06-28 WO PCT/DE2023/100485 patent/WO2024002423A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307726A1 (en) | 1983-03-04 | 1984-09-06 | Klaus Union Armaturen | SLIDING BEARING FOR THE RUNNER OF A PUMP |
GB2409008A (en) | 2003-12-10 | 2005-06-15 | Echlin Do Brasil Ind E Com Ltd | A hydrodynamic bearing arrangement for a rotatable shaft |
DE102018123909A1 (en) | 2018-09-27 | 2020-04-02 | Nidec Gpm Gmbh | Compact plain bearing with sealing arrangement and water pump with the same |
Also Published As
Publication number | Publication date |
---|---|
WO2024002423A1 (en) | 2024-01-04 |
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R012 | Request for examination validly filed | ||
R016 | Response to examination communication |