CH266731A - Device to avoid loss of lubricant in high-speed turbo machines with a flying rotor arrangement. - Google Patents
Device to avoid loss of lubricant in high-speed turbo machines with a flying rotor arrangement.Info
- Publication number
- CH266731A CH266731A CH266731DA CH266731A CH 266731 A CH266731 A CH 266731A CH 266731D A CH266731D A CH 266731DA CH 266731 A CH266731 A CH 266731A
- Authority
- CH
- Switzerland
- Prior art keywords
- lubricant
- barrier air
- speed turbo
- turbo machines
- air spaces
- Prior art date
Links
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
- F01D25/18—Lubricating arrangements
- F01D25/183—Sealing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Description
<B>Vorrichtung zur Vermeidung von</B> Schmiermittelverlusten <B>bei hochtourigen Turbomaschinen.</B> Bei Abgasturboladern, bei denen der La der und die Abgasturbine auf einer gemein- eamen Welle und bei denen die beiden Läu fer fliegend angeordnet sind, besteht die Not- wendigkeiteiner sehr sorgfältigen Schmie rung der zwischen Lader und Turbine an geordneten Lager.
Die Stelle des Wärmeüber trittes vom Turbinenläufer über die Welle ins Lager wird bei manchen der bekannten Kon- struktionen durch Luft gekühlt, die aus dem Ladegebläse entnommen wird.
Durch diese Kühlungsmassnahme ergibt, sich, .falls nicht besondere Gegenmassnahmen getroffen werden, zwangläufig, dass an den Wellendurehtrittsstellen derart verschiedene Drücke herrschen, dass die Gefahr eines er höhten Schmiermittelverbrauehes gegeben ist. In besonderen Fällen tritt gänzliches Leer saugen bzw. -drücken des Sehmiermittelrau- mes auf.
;Mittels der erfindungsgemässen Vorrich tung werden Sehmiermittelverluste bei der artigen hochtourigen Turbomaschinen, wel che an den beiden Wellendurchführungen Sperrlufträume aufweisen, dadurch vermie den, dass beide Sperrlufträume durch Ent lüftungsbohrungen mit der umgebenden At mosphäre verbunden sind.
In der beiliegenden Zeichnung ist ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung an einem Abgasturbolader dar gestellt; 1 stellt den Lader dar, 2 die Ab gasturbine, wobei die Laufräder auf gemein- samer Welle sitzen; 6 stellt die Lagerung dar.
Die Lager sind von einem Gehäuse umschlos sen, so dass die Schmiermittelräume 5, 5a und 5b entstehen, die über dem Ölspiegel durch Löcher 8 in Verbindung >stehen. Die Schmier mittelräume 5, 5a und 5b sind bei Ölschmie- rung bis zu einem bestimmten Niveau mit Öl gefüllt. Die ölschleuderscheibe 9 zwischen den beiden Lagern dient dabei zur Vernebe lung und Verteilung des Öls.
x Aus der Abbildung ist weiter zu entneh men, dass aus dem Gebläse 1 durch den Kanal 12 Ladeluft in den ringförmigen Raum 11 geleitet wird. Ein Teil dieser Ladeluft hat die Aufgabe der Wellen- und Turbinenlaufrad kühlung. Die Luft aus dem Raum 11 wird an der Wärmeübertrittsstelle 13 der Welle so umgelenkt, dass sie die Rückseit:b des Ab gasturbinenläufers bestreicht und damit kühlt.
Weiterhin sind zwei Sperrlufträume 15 und 17 an den beiden Wellendurchtritts- stellen angeordnet, die sieh ringförmig um die gemeinsame Welle erstrecken. Diese bei den Sperrlufträume 15 und 17 sind entweder vom Ladeluftgebläse her oder aber von einer fremden Druckluftquelle her durch besondere in der Zeichnung nicht dargestellte Leitun gen mit Druckluft gespeist. Sie können auch getrennt mit Sperrluft von verschiedenem Druekniv eaiz beschickt werden.
Die beiden Sperrlufträume 15 lind l.7 sind durch direkte Verbindungskanäle 18 und 19 mit der um- gebenden Atmosphäre verbunden. Diese bei den Kanäle können, was in der Abbildung nicht dargestellt ist, besondere Regelvorrich tungen zur Veränderung ihres Austrittsqiier- sehnittes tragen, so dass die Drücke im Innern der beiden Sperrlufträume je nach den Be triebsverhältnissen getrennt eingeregelt wer den können.
Durch die beschriebene Ausbil dung der -Sperrltüträume kann erreicht wer den, dass an :dem Durchtritt der gemeinsamen Welle durch die Sperrlufträume solche Druckverhältnisse herrschen, dass ein Aus treten von Schmiermittel lind damit ein Ver- lust desselben über diese Durchtrittsstellen hinweg vermieden wird.
Mittels der erwähn ten Reguliervorrichtung kann der in vielen Fällen gewünschte Betriebszustand von Druckgleichheit an den Wellendurchtritts- stellen in einfacher Weise leicht erreicht wer den.
<B> Device for avoiding </B> lubricant losses <B> in high-speed turbo machines. </B> In exhaust gas turbochargers in which the loader and the exhaust gas turbine are arranged on a common shaft and in which the two runners are arranged overhung , there is a need for very careful lubrication of the bearings arranged between the charger and the turbine.
In some of the known constructions, the point where the heat is transferred from the turbine rotor via the shaft into the bearing is cooled by air that is taken from the charge fan.
As a result of this cooling measure, unless special countermeasures are taken, it is inevitable that the pressures at the shaft exit points are so different that there is a risk of increased lubricant consumption. In special cases the Sehmiermittelraums are sucked or pressed completely empty.
By means of the device according to the invention, loss of airborne fluid in the high-speed turbo-machines, which have barrier air spaces at the two shaft ducts, is avoided in that both barrier air spaces are connected to the surrounding atmosphere by vent holes.
In the accompanying drawing, an embodiment of the device according to the invention is shown on an exhaust gas turbocharger; 1 shows the loader, 2 the exhaust gas turbine, with the impellers sitting on a common shaft; 6 shows the storage.
The bearings are enclosed in a housing so that the lubricant spaces 5, 5a and 5b are created, which are connected through holes 8 above the oil level. The lubricant spaces 5, 5a and 5b are filled with oil up to a certain level with oil lubrication. The oil slinger 9 between the two bearings is used for nebulization and distribution of the oil.
x It can also be seen from the figure that charge air is passed from the blower 1 through the duct 12 into the annular space 11. Part of this charge air has the task of cooling the shaft and turbine impellers. The air from the space 11 is deflected at the heat transfer point 13 of the shaft so that it brushes the back: b of the gas turbine rotor and thus cools.
Furthermore, two blocking air spaces 15 and 17 are arranged at the two shaft passage points, which extend in an annular manner around the common shaft. These at the air lock chambers 15 and 17 are either fed by the charge air blower or from an external compressed air source by special lines, not shown in the drawing, with compressed air. They can also be charged separately with sealing air from different pressure levels.
The two blocking air spaces 15 and 1.7 are connected to the surrounding atmosphere by direct connection channels 18 and 19. These ducts can, which is not shown in the figure, carry special control devices to change their outlet cross section, so that the pressures inside the two barrier air spaces can be regulated separately depending on the operating conditions.
The above-described design of the blocking air chambers ensures that the pressure conditions prevailing at the passage of the common shaft through the blocking air chambers are such that lubricant leakage and loss of lubricant via these penetration points are avoided.
By means of the regulating device mentioned, the operating state of equal pressure at the shaft passages, which is desired in many cases, can easily be achieved in a simple manner.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH266731T | 1948-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH266731A true CH266731A (en) | 1950-02-15 |
Family
ID=4476231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH266731D CH266731A (en) | 1948-08-11 | 1948-08-11 | Device to avoid loss of lubricant in high-speed turbo machines with a flying rotor arrangement. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH266731A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2254082A1 (en) * | 1971-11-04 | 1973-05-10 | Lucas Aerospace Ltd | TURBINE ENGINE |
| DE2856155A1 (en) * | 1977-12-27 | 1979-06-28 | Cummins Engine Co Inc | TURBOCHARGER |
| FR2527261A1 (en) * | 1982-05-21 | 1983-11-25 | Mtu Friedrichshafen Gmbh | SEALING DEVICE FOR TURBOMACHINES |
| DE3817617A1 (en) * | 1988-05-25 | 1989-07-20 | Daimler Benz Ag | Exhaust turbocharger for an internal combustion engine |
| EP0272151A3 (en) * | 1986-12-19 | 1990-01-03 | Allied-Signal Inc. | Turbocharger bearing and lubrication system |
| EP0357246A3 (en) * | 1988-08-03 | 1990-03-14 | Nissan Motor | Shaft seal arrangement of turbocharger |
| WO2001027444A1 (en) * | 1999-10-12 | 2001-04-19 | Alm Development, Inc. | Bearing housing for a turbomachine |
| EP1394365A1 (en) * | 2002-09-02 | 2004-03-03 | BorgWarner Inc. | Turbocharger shaft sealing |
| EP1813782A1 (en) * | 2006-01-26 | 2007-08-01 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Turbo-supercharger |
| US7673452B2 (en) | 2006-01-24 | 2010-03-09 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Motor-driven supercharger |
| US8001781B2 (en) | 2006-06-02 | 2011-08-23 | Ihi Corporation | Motor-driven supercharger |
| US8096126B2 (en) | 2006-06-02 | 2012-01-17 | Ihi Corporation | Motor-driven supercharger |
| US8152489B2 (en) | 2006-08-18 | 2012-04-10 | Ihi Corporation | Motor-driven supercharger |
| US8157543B2 (en) | 2006-03-23 | 2012-04-17 | Ihi Corporation | High-speed rotating shaft of supercharger |
| US8157544B2 (en) | 2006-08-18 | 2012-04-17 | Ihi Corporation | Motor driven supercharger with motor/generator cooling efficacy |
| US8549862B2 (en) | 2009-09-13 | 2013-10-08 | Lean Flame, Inc. | Method of fuel staging in combustion apparatus |
| JP2014062545A (en) * | 2012-09-19 | 2014-04-10 | Man Diesel & Turbo Se | Transmission turbo machine |
| DE102014011849A1 (en) * | 2014-08-08 | 2016-02-11 | Man Diesel & Turbo Se | Shaft seal system and turbocharger |
-
1948
- 1948-08-11 CH CH266731D patent/CH266731A/en unknown
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2254082A1 (en) * | 1971-11-04 | 1973-05-10 | Lucas Aerospace Ltd | TURBINE ENGINE |
| DE2856155A1 (en) * | 1977-12-27 | 1979-06-28 | Cummins Engine Co Inc | TURBOCHARGER |
| FR2527261A1 (en) * | 1982-05-21 | 1983-11-25 | Mtu Friedrichshafen Gmbh | SEALING DEVICE FOR TURBOMACHINES |
| EP0272151A3 (en) * | 1986-12-19 | 1990-01-03 | Allied-Signal Inc. | Turbocharger bearing and lubrication system |
| DE3817617A1 (en) * | 1988-05-25 | 1989-07-20 | Daimler Benz Ag | Exhaust turbocharger for an internal combustion engine |
| US5076765A (en) * | 1988-08-03 | 1991-12-31 | Nissan Motor Company, Altd. | Shaft seal arrangement of turbocharger |
| EP0357246A3 (en) * | 1988-08-03 | 1990-03-14 | Nissan Motor | Shaft seal arrangement of turbocharger |
| WO2001027444A1 (en) * | 1999-10-12 | 2001-04-19 | Alm Development, Inc. | Bearing housing for a turbomachine |
| EP1394365A1 (en) * | 2002-09-02 | 2004-03-03 | BorgWarner Inc. | Turbocharger shaft sealing |
| US7673452B2 (en) | 2006-01-24 | 2010-03-09 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Motor-driven supercharger |
| EP1813782A1 (en) * | 2006-01-26 | 2007-08-01 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Turbo-supercharger |
| US7837448B2 (en) | 2006-01-26 | 2010-11-23 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Supercharger |
| CN101008345B (en) * | 2006-01-26 | 2011-10-12 | 石川岛播磨重工业株式会社 | Pressurizing machine |
| US8157543B2 (en) | 2006-03-23 | 2012-04-17 | Ihi Corporation | High-speed rotating shaft of supercharger |
| US8001781B2 (en) | 2006-06-02 | 2011-08-23 | Ihi Corporation | Motor-driven supercharger |
| US8096126B2 (en) | 2006-06-02 | 2012-01-17 | Ihi Corporation | Motor-driven supercharger |
| US8152489B2 (en) | 2006-08-18 | 2012-04-10 | Ihi Corporation | Motor-driven supercharger |
| US8157544B2 (en) | 2006-08-18 | 2012-04-17 | Ihi Corporation | Motor driven supercharger with motor/generator cooling efficacy |
| US8549862B2 (en) | 2009-09-13 | 2013-10-08 | Lean Flame, Inc. | Method of fuel staging in combustion apparatus |
| US8689562B2 (en) | 2009-09-13 | 2014-04-08 | Donald W. Kendrick | Combustion cavity layouts for fuel staging in trapped vortex combustors |
| US8689561B2 (en) | 2009-09-13 | 2014-04-08 | Donald W. Kendrick | Vortex premixer for combustion apparatus |
| JP2014062545A (en) * | 2012-09-19 | 2014-04-10 | Man Diesel & Turbo Se | Transmission turbo machine |
| EP2711503A3 (en) * | 2012-09-19 | 2017-08-23 | MAN Diesel & Turbo SE | Geared turbomachine |
| DE102014011849A1 (en) * | 2014-08-08 | 2016-02-11 | Man Diesel & Turbo Se | Shaft seal system and turbocharger |
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