CH375956A - Plain bearings for a turbo set charged with elastic working medium - Google Patents
Plain bearings for a turbo set charged with elastic working mediumInfo
- Publication number
- CH375956A CH375956A CH8172459A CH8172459A CH375956A CH 375956 A CH375956 A CH 375956A CH 8172459 A CH8172459 A CH 8172459A CH 8172459 A CH8172459 A CH 8172459A CH 375956 A CH375956 A CH 375956A
- Authority
- CH
- Switzerland
- Prior art keywords
- working medium
- bearings
- compressor
- plain
- plain bearings
- Prior art date
Links
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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
-
- 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
- F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant
-
- 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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
- F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
- F16C32/0651—Details of the bearing area per se
- F16C32/0659—Details of the bearing area per se of pockets or grooves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
Gleitlagerung für einen mit elastischem Arbeitsmedium beaufschlagten Turbosatz Die Erfindung betrifft eine Gleitlagerung für einen mit elastischem Arbeitsmedium beaufschlagten Turbo satz, welcher aus mindestens einem Kompressor und einer mit ihm gekuppelten Turbine besteht. Sie ist dadurch gekennzeichnet, dass im Betriebsbereich min destens ein Teil der Gleitlager des Turbosatzes durch ein vom Kompressor abgezweigtes Arbeitsmedium, beispielsweise Luft, geschmiert ist. Zweckmässig tritt das als Schmiermittel vom Kompressor abgezweigte Arbeitsmedium nach Durchtritt durch die Gleitlager ins Freie; es kann aber auch dem die Turbine an treibenden Arbeitsmedium wieder zugeführt werden.
Vorteilhaft sind dabei die Gleitlager als Mehrflächen- Gleitlager mit hydrodynamischer Schmierung oder als Einflächen-Gleitlager mit hydrostatischer Schmie rung ausgebildet.
Auf der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt.
Fig. 1 veranschaulicht schematisch, wie die Lage rung des Turbosatzes mit vom Kompressor abge zweigtem Arbeitsmittel gespeist wird, und zwar so wohl mit Austritt des Schmiermittels nach Durch tritt der Lagerung ins Freie als auch bei Wieder zuführung zu dem die Turbine antreibenden Arbeits medium (strichliert eingezeichnet).
Fig. 2 zeigt eine Mehrflächengleitlagerung im Querschnitt, und Fig.3 stellt eine Einflächenlagerung im Quer schnitt dar.
In Fig. 1 ist mit 1 der Kompressor und mit 2 die Turbine bezeichnet. Die Welle 3 verbindet den Kompressor 1 mit der Turbine 2. Der aus dem Kom pressor 1 und der Turbine 2 bestehende Turbosatz ist mittels der Wellenenden 4 in den beiden Gleit lagern 6 gelagert. Die zum Kompressor 1 führende Ansaugleitung ist mit 7 und die von ihm weg führende Druckleitung ist mit 8 bezeichnet. Die zur Turbine 2 führende Druckleitung und die Austritts leitung tragen die Bezeichnungen 9 und 10. Bei 11 ist die von der Hochdruckseite des Kompressors 1 kommende Druckleitung 8 angezapft. Von der An zapfstelle 11 führt die Druckleitung 12 zu den beiden Gleitlagern 6 und liefert das zur Schmierung dieser Lager notwendige Arbeitsmedium.
Die von den beiden Lagern 6 wegführenden Lei tungen 13 (strichliert eingezeichnet) vereinigen sich beim Sammelpunkt 14. Die gemeinsame Leitung 15 führt vom Sammelpunkt 14 zur Druckleitung 9 der Turbine 2.
Durch die mit den Endpfeilen versehene, aus gezogen gezeichnete Linie in den Lagern 6 oberhalb des Wellenendes 4 ist angezeigt, dass das zur Schmie rung erforderliche Arbeitsmedium nach Durchtritt des Lagers 6 ins Freie tritt, während durch die strich lierten Linien 13 und 15 die andere Möglichkeit an gedeutet ist, dass das vom Kompressor 1 bei 11 abgezweigte Arbeitsmedium nach Durchtritt der Lager 6 dem die Turbine 2 antreibenden Arbeits medium wieder zugeführt wird.
Fig.2 zeigt im Querschnitt eine Ausführungs form der in Fig. 1 dargestellten Gleitlager in gegen über dieser Figur vergrössertem Massstab, und zwar ist der Lagerzapfen entsprechend mit 4 bezeichnet und seine Drehrichtung durch Pfeil im Uhrzeigersinn angedeutet. Die Lagerschale 18 weist auf ihrer Innen seite drei in Drehrichtung sich verkleinernde Aus- nehmungen auf, welche in Verbindung mit dem La gerzapfen 4 exzentrische Taschen 19 bilden. Die Lagerschale 18 ist in der Nähe ihrer dünnsten Stellen jeweils durchbohrt, wobei die Taschen 19 über die Bohrungen 20 mit der Druckleitung 12 verbunden sind.
Diese Lagerungsart ist als hydrodynamische Mehrflächen-Lagerung bekannt.
In Fig. 3 ist eine Ausführungsart dargestellt, bei welcher die Innenseite der Lagerschale 21 zylindrisch ausgeführt ist. An mehreren Stellen ist die Lager schale durchbohrt, wobei die Bohrungen 22 mit der Druckleitung 12 in Verbindung stehen. Diese Lage rungsart ist als hydrostatische Lagerung bekannt.
Slide bearing for a turbo set acted upon by elastic working medium The invention relates to a slide bearing for a turbo set acted upon by elastic working medium, which consists of at least one compressor and a turbine coupled to it. It is characterized in that in the operating range at least some of the plain bearings of the turbo set are lubricated by a working medium, for example air, branched off from the compressor. The working medium branched off as a lubricant from the compressor is expediently released into the open after passing through the slide bearings; but it can also be fed back to the working medium driving the turbine.
The plain bearings are advantageously designed as multi-surface plain bearings with hydrodynamic lubrication or as single-surface plain bearings with hydrostatic lubrication.
The subject of the invention is shown in the drawing, for example.
Fig. 1 shows schematically how the storage tion of the turbo set is fed by the compressor abge branched working medium, and indeed so well with the leakage of the lubricant after the storage passes through the open air as well as when re-supply to the working medium driving the turbine (dashed lines drawn).
Fig. 2 shows a multi-surface sliding bearing in cross section, and Fig. 3 shows a single surface bearing in cross section.
In Fig. 1, 1 denotes the compressor and 2 denotes the turbine. The shaft 3 connects the compressor 1 with the turbine 2. The turbine set consisting of the compressor 1 and the turbine 2 is supported by means of the shaft ends 4 in the two slide bearings 6. The suction line leading to the compressor 1 is denoted by 7 and the pressure line leading away from it is denoted by 8. The pressure line leading to the turbine 2 and the outlet line are labeled 9 and 10. At 11, the pressure line 8 coming from the high pressure side of the compressor 1 is tapped. From the tap point 11, the pressure line 12 leads to the two plain bearings 6 and supplies the working medium required to lubricate these bearings.
The lines 13 (shown in dashed lines) leading away from the two bearings 6 merge at the collecting point 14. The common line 15 leads from the collecting point 14 to the pressure line 9 of the turbine 2.
By the end arrows provided, drawn from the line in the bearings 6 above the shaft end 4 it is indicated that the working medium required for lubrication occurs after passage of the bearing 6 into the open, while the dashed lines 13 and 15 the other possibility it is indicated that the working medium branched off from the compressor 1 at 11 is fed back to the working medium driving the turbine 2 after passing through the bearings 6.
Fig. 2 shows in cross section an embodiment of the slide bearing shown in Fig. 1 on an enlarged scale compared to this figure, namely the bearing pin is correspondingly designated by 4 and its direction of rotation is indicated by the clockwise arrow. On its inside, the bearing shell 18 has three recesses which decrease in size in the direction of rotation and which form eccentric pockets 19 in conjunction with the bearing journal 4. The bearing shell 18 is drilled through in the vicinity of its thinnest points, the pockets 19 being connected to the pressure line 12 via the bores 20.
This type of storage is known as hydrodynamic multi-surface storage.
In Fig. 3, an embodiment is shown in which the inside of the bearing shell 21 is cylindrical. The bearing shell is pierced at several points, the bores 22 being in communication with the pressure line 12. This type of location is known as hydrostatic storage.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8172459A CH375956A (en) | 1959-12-11 | 1959-12-11 | Plain bearings for a turbo set charged with elastic working medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8172459A CH375956A (en) | 1959-12-11 | 1959-12-11 | Plain bearings for a turbo set charged with elastic working medium |
Publications (1)
Publication Number | Publication Date |
---|---|
CH375956A true CH375956A (en) | 1964-03-15 |
Family
ID=4539072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH8172459A CH375956A (en) | 1959-12-11 | 1959-12-11 | Plain bearings for a turbo set charged with elastic working medium |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH375956A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0189875A1 (en) * | 1985-01-26 | 1986-08-06 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Auxiliary power system for a gas turbine engine |
FR2651845A1 (en) * | 1989-09-08 | 1991-03-15 | Electricite De France | Multi-lobe bearing bush with no feed grooves for a hydrodynamic bearing |
WO2015107048A3 (en) * | 2014-01-15 | 2015-09-11 | Voith Patent Gmbh | Hydrodynamic plain bearing |
-
1959
- 1959-12-11 CH CH8172459A patent/CH375956A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0189875A1 (en) * | 1985-01-26 | 1986-08-06 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Auxiliary power system for a gas turbine engine |
FR2651845A1 (en) * | 1989-09-08 | 1991-03-15 | Electricite De France | Multi-lobe bearing bush with no feed grooves for a hydrodynamic bearing |
WO2015107048A3 (en) * | 2014-01-15 | 2015-09-11 | Voith Patent Gmbh | Hydrodynamic plain bearing |
US10197095B2 (en) | 2014-01-15 | 2019-02-05 | Voith Patent Gmbh | Hydrodynamic plain bearing |
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