DE102010035665A1 - storage - Google Patents
storage Download PDFInfo
- Publication number
- DE102010035665A1 DE102010035665A1 DE102010035665A DE102010035665A DE102010035665A1 DE 102010035665 A1 DE102010035665 A1 DE 102010035665A1 DE 102010035665 A DE102010035665 A DE 102010035665A DE 102010035665 A DE102010035665 A DE 102010035665A DE 102010035665 A1 DE102010035665 A1 DE 102010035665A1
- Authority
- DE
- Germany
- Prior art keywords
- oil
- piston rings
- outer ring
- storage
- bearing
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
- F01D25/162—Bearing supports
- F01D25/164—Flexible supports; Vibration damping means associated with the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
- F01D25/183—Sealing means
- F01D25/186—Sealing means for sliding contact 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
- F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
-
- 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
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
- F05D2240/00—Components
- F05D2240/50—Bearings
- F05D2240/54—Radial 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
- F16C2360/23—Gas turbine engines
- F16C2360/24—Turbochargers
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Lagerung, insbesondere für einen Turbolader, mit einem Innenring und einem Außenring und einem Quetschölfilm dadurch gekennzeichnet, dass wenigstens zwei Kolbenringe so vorgesehen sind, dass ein Abfluss des Öls über den Quetschölfilm gedrosselbar ist.Storage, in particular for a turbocharger, with an inner ring and an outer ring and a squeeze oil film, characterized in that at least two piston rings are provided so that an outflow of the oil via the squeeze oil film can be throttled.
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Lagerung insbesondere in einem Turbolader.The invention relates to a storage, in particular in a turbocharger.
Hintergrund der ErfindungBackground of the invention
Bei Turboladern werden die Lager üblicherweise mit einem deutlichen Radial-/Axialspiel eingebaut. Durch den dabei entstehenden Spalt zwischen äußerem Ring und Gehäuse wird Öl gedrückt, das als Ölpolster und damit als Dämpfer wirkt. Die Ölmenge stellt sich abhängig von der Spalthöhe/-länge, Öldruck/-viskosität ein. Derartige Lagerungen sind beispielsweise aus der
Nachteilig an diesen bekannten Lagerungen ist allerdings, dass durch das durchdrücken des Öls ein sogenannter Quetschölfilm entsteht, der keine zentrierende Wirkung hat. Die Geometrie des Quetschölfilms wird in der Regel nach den Bedürfnissen der Rotordynamik abgestimmt. Die Ölversorgung erfolgt von oben, d. h. der Druck in der umlaufenden Ölnut auf der Außenringaußenseite nimmt auf Grund des Flusswiderstandes und der in den Squeeze-Film und der Spritzölbohrung abfließenden Ölmenge von oben nach unten ab. Aus der Druckverteilung resultiert eine radiale Kraft mit definierter Richtung. Druckinduzierte Kraft und Schwerkraft wirken nach unten. Das Öldruckgefälle von oben nach unten wird durch die exzentrische Lage des Außenringes im Gehäuse (unten) und damit erhöhten Ölabfluss gesteigert. Dies wiederum kann insbesondere bei Turboladerwälzlagern am Außenring zu Verschleißspuren mit Vorzugsrichtung führen. Bei radialen nicht rotierenden Kräften wie dem Eigengewicht der Lagerkartusche mit Rotor und Kräften, die wie in bekannten Anwendungen aus der Druckverteilung im Quetschölfilm resultieren, kommt es trotz der Überlagerung mit Unwuchtkräften zu einer bevorzugten exzentrischen Position des Außenrings im Gehäuse. D. h. der Abstand zwischen Außenring und Gehäuse ist auf der Seite, in deren Richtung die beschrieben Kräfte wirken, geringer oder sogar gleich null. Zwar nimmt der Widerstand, den der Quetschfilm der durch Unwucht verursachten dynamischen Radialbewegungen entgegensetzt, mit kleiner werdendem Spalt zu, jedoch wird der Restweg zur Unterbindung des metallischen Kontaktes ab. Der Anteil des Quetschölfilms am Ölbedarf der Lagerkartusche beträgt bei bekannten Anwendungen mehr als 50%.A disadvantage of these known bearings, however, is that by pushing the oil through a so-called Quetschölfilm arises, which has no centering effect. The geometry of the squeeze oil film is usually tuned to the needs of rotor dynamics. The oil supply is from above, d. H. the pressure in the circumferential oil groove on the outer ring outer side decreases from top to bottom due to the flow resistance and the amount of oil flowing into the squeeze film and the spray oil bore. The pressure distribution results in a radial force with a defined direction. Pressure-induced force and gravity act downward. The oil pressure gradient from top to bottom is increased by the eccentric position of the outer ring in the housing (bottom) and thus increased oil drain. This in turn can lead to wear marks with preferential direction, especially in turbocharger bearings on the outer ring. In the case of radial non-rotating forces such as the self-weight of the bearing cartridge with rotor and forces resulting from the pressure distribution in the quenching oil film, as is the case in known applications, there will be a preferred eccentric position of the outer ring in the housing, despite the superposition with imbalance forces. Ie. The distance between the outer ring and housing is on the side in the direction of the described forces act, less or even zero. Although the resistance that the squeeze film opposes to the dynamic radial movements caused by imbalance increases as the gap narrows, the residual path to prevent the metallic contact is reduced. The proportion of Quetschölfilms the oil requirement of the bearing cartridge is in known applications more than 50%.
Aufgabenstellungtask
Die Aufgabe der Erfindung besteht daher darin, eine Lagerung vorzuschlagen, mit der die beschriebenen Verschleißspuren vermieden werden können.The object of the invention is therefore to propose a storage with which the wear marks described can be avoided.
Zusammenfassung der ErfindungSummary of the invention
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Lagerung so ausgeführt wird, dass der axiale Abfluss des Öls über den Quetschölfilm durch Kolbenringe gedrosselbar ist. Dies hat auch den Vorteil, dass der Abfluss des Öls auch fast vollständig unterbunden werden kann. Dadurch wird das Druckgefälle von oben (Ölzufluss) nach unten vermindert. Damit wird auch die resultierende Kraft aus der Druckverteilung am Umfang erheblich verringert. Durch die geringere zu fördernde Ölmenge reduziert sich der Leistungsbedarf der Ölpumpe. Außerdem wird der Außenring durch die geringere Kühlung höhere Temperaturen erreichen, so dass eine geringere Temperaturdifferenz zum Innenring entsteht und die Lagergeometrie im Betrieb geringeren Schwankungen unterworfen ist.According to the invention this object is achieved in that the storage is carried out so that the axial outflow of the oil on the Quetschölfilm can be throttled by piston rings. This also has the advantage that the drainage of the oil can be almost completely prevented. This reduces the pressure drop from the top (oil inflow) downwards. Thus, the resulting force from the pressure distribution at the periphery is significantly reduced. The lower amount of oil to be pumped reduces the power requirement of the oil pump. In addition, the outer ring will reach higher temperatures due to the lower cooling, so that a lower temperature difference to the inner ring is formed and the bearing geometry is subject to lower fluctuations during operation.
Ein Reduktion des Öldurchflusses durch den Quetschölfilm reduziert die Leistungsaufnahme der Ölpumpe und die Kühlung des Außenringes. Durch die Reduzierung der Kühlung des Außenrings wird die Temperaturdifferenz zum Innenring geringer ausfallen, was sich positiv auf die Konstanz der Lagergeometrie auswirkt.A reduction of the oil flow through the squeezing oil film reduces the power consumption of the oil pump and the cooling of the outer ring. By reducing the cooling of the outer ring, the temperature difference to the inner ring will be lower, which has a positive effect on the constancy of the bearing geometry.
Beschreibung der ZeichnungenDescription of the drawings
Weitere Vorteile und vorteilhafte Ausgestaltungen der Erfindung sind gegenstand der nachfolgenden Figuren sowie deren Beschreibungsteile.Further advantages and advantageous embodiments of the invention are subject matter of the following figures and their description parts.
Es zeigen im Einzelnen:They show in detail:
Die
Die
Die Erfindung mit ihren Ausführungsformen kann insbesondere als Lagerung für einen Turbolader als sogenannte Turbowälzlagerung eingesetzt werden. Ebenso kann die Erfindung bei anderen Lagerungen angewendet werden, bei denen ein Quetschölfilm vorgesehen ist. Hier kommen beispielsweise die Lagerung von Klimakompressoren in Frage.The invention with its embodiments can be used in particular as a bearing for a turbocharger as a so-called turbo rolling bearing. Likewise, the invention can be applied to other bearings in which a Quetschölfilm is provided. Here, for example, the storage of air conditioning compressors come into question.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE 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 the documents listed by the applicant has been 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
- WO 002006004654 A1 [0002] WO 002006004654 A1 [0002]
- JP 000063215830 AA [0002] JP 000063215830 AA [0002]
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010035665A DE102010035665A1 (en) | 2010-08-27 | 2010-08-27 | storage |
PCT/EP2011/064477 WO2012025531A1 (en) | 2010-08-27 | 2011-08-23 | Bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010035665A DE102010035665A1 (en) | 2010-08-27 | 2010-08-27 | storage |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010035665A1 true DE102010035665A1 (en) | 2012-03-01 |
Family
ID=44509365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010035665A Withdrawn DE102010035665A1 (en) | 2010-08-27 | 2010-08-27 | storage |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102010035665A1 (en) |
WO (1) | WO2012025531A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011081200A1 (en) * | 2011-08-18 | 2013-02-21 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Rolling arrangement of an exhaust gas turbocharger |
DE102011081419A1 (en) * | 2011-08-23 | 2013-02-28 | Schaeffler Technologies AG & Co. KG | squeeze film |
DE102012206556A1 (en) | 2012-04-20 | 2013-10-24 | Schaeffler Technologies AG & Co. KG | Bearing unit for a turbocharger |
CN104847797A (en) * | 2015-04-02 | 2015-08-19 | 镇江佳鑫精工设备有限公司 | Bearing pedestal used for agricultural seeder |
US20150345549A1 (en) * | 2014-05-30 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Bearing assembly |
EP3252280A1 (en) * | 2016-06-03 | 2017-12-06 | United Technologies Corporation | Circumferential plenum for oil damper |
DE102016014140A1 (en) | 2016-11-25 | 2018-05-30 | Daimler Ag | Rotor device for an exhaust gas turbocharger of an internal combustion engine |
US10495144B1 (en) * | 2018-05-25 | 2019-12-03 | Borgwarner Inc. | Single-row ball bearing with integrated squeeze-film damper |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014219731A1 (en) * | 2014-09-29 | 2016-03-31 | Aktiebolaget Skf | Turbocharger bearing arrangement |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63215830A (en) | 1987-03-04 | 1988-09-08 | Hitachi Ltd | Turbocharger of ball bearing type |
WO2006004654A1 (en) | 2004-06-28 | 2006-01-12 | Honeywell International Inc. | Rotational anx axial retention of ball bearing cartridge in the housing of a turbomachine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1117572A (en) * | 1966-02-01 | 1968-06-19 | Worthington Corp | Piston assembly |
AT279281B (en) * | 1968-02-23 | 1970-02-25 | Man Turbo Gmbh | Axially braced bearings, especially for high-speed shafts |
SE8602121L (en) * | 1985-05-30 | 1986-12-01 | Teledyne Ind | LUBRICATION SYSTEM FOR A TURBO COMPRESSOR |
US5253985A (en) * | 1990-07-04 | 1993-10-19 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Exhaust gas turbocharger having rotor runners disposed in roller bearings |
US5169240A (en) * | 1991-04-17 | 1992-12-08 | General Electric Company | Proportioned piston ring seals |
US5344239A (en) * | 1992-11-25 | 1994-09-06 | General Electric Company | Squeeze film bearing damper with annular end plenums |
US7104693B2 (en) * | 2004-06-28 | 2006-09-12 | Honeywell International, Inc. | Multi-thickness film layer bearing cartridge and housing |
US20070110351A1 (en) * | 2005-11-16 | 2007-05-17 | Honeywell International, Inc. | Centering mechanisms for turbocharger bearings |
US8118570B2 (en) * | 2007-10-31 | 2012-02-21 | Honeywell International Inc. | Anisotropic bearing supports for turbochargers |
-
2010
- 2010-08-27 DE DE102010035665A patent/DE102010035665A1/en not_active Withdrawn
-
2011
- 2011-08-23 WO PCT/EP2011/064477 patent/WO2012025531A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63215830A (en) | 1987-03-04 | 1988-09-08 | Hitachi Ltd | Turbocharger of ball bearing type |
WO2006004654A1 (en) | 2004-06-28 | 2006-01-12 | Honeywell International Inc. | Rotational anx axial retention of ball bearing cartridge in the housing of a turbomachine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011081200A1 (en) * | 2011-08-18 | 2013-02-21 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Rolling arrangement of an exhaust gas turbocharger |
US9464637B2 (en) | 2011-08-18 | 2016-10-11 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Rolling bearing assembly of an exhaust gas turbocharger |
DE102011081419A1 (en) * | 2011-08-23 | 2013-02-28 | Schaeffler Technologies AG & Co. KG | squeeze film |
WO2013156194A1 (en) | 2012-04-20 | 2013-10-24 | Schaeffler Technologies AG & Co. KG | Bearing unit for a turbocharger |
DE102012206556B4 (en) * | 2012-04-20 | 2015-10-29 | Schaeffler Technologies AG & Co. KG | Bearing unit for a turbocharger |
US9212698B2 (en) | 2012-04-20 | 2015-12-15 | Schaeffler Technologies AG & Co. KG | Bearing unit for a turbocharger |
DE102012206556A1 (en) | 2012-04-20 | 2013-10-24 | Schaeffler Technologies AG & Co. KG | Bearing unit for a turbocharger |
US20150345549A1 (en) * | 2014-05-30 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Bearing assembly |
US9447816B2 (en) * | 2014-05-30 | 2016-09-20 | Schaeffler Technologies AG & Co. KG | Bearing assembly |
CN104847797A (en) * | 2015-04-02 | 2015-08-19 | 镇江佳鑫精工设备有限公司 | Bearing pedestal used for agricultural seeder |
EP3252280A1 (en) * | 2016-06-03 | 2017-12-06 | United Technologies Corporation | Circumferential plenum for oil damper |
US10233778B2 (en) | 2016-06-03 | 2019-03-19 | United Technologies Corporation | Circumferential plenum for oil damper |
DE102016014140A1 (en) | 2016-11-25 | 2018-05-30 | Daimler Ag | Rotor device for an exhaust gas turbocharger of an internal combustion engine |
US10495144B1 (en) * | 2018-05-25 | 2019-12-03 | Borgwarner Inc. | Single-row ball bearing with integrated squeeze-film damper |
Also Published As
Publication number | Publication date |
---|---|
WO2012025531A1 (en) | 2012-03-01 |
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Legal Events
Date | Code | Title | Description |
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R163 | Identified publications notified | ||
R163 | Identified publications notified |
Effective date: 20120418 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130301 |