WO2007108234A1 - 過給機の高速回転軸 - Google Patents
過給機の高速回転軸 Download PDFInfo
- Publication number
- WO2007108234A1 WO2007108234A1 PCT/JP2007/051607 JP2007051607W WO2007108234A1 WO 2007108234 A1 WO2007108234 A1 WO 2007108234A1 JP 2007051607 W JP2007051607 W JP 2007051607W WO 2007108234 A1 WO2007108234 A1 WO 2007108234A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- shaft
- rotating shaft
- compressor
- turbine
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
-
- 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
- F01D25/166—Sliding contact bearing
-
- 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
-
- 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
- F01D25/04—Antivibration arrangements
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
- F01D5/043—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the axial inlet- radial outlet, or vice versa, type
- F01D5/048—Form or construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- 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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
-
- 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
- F05D2240/53—Hydrodynamic or hydrostatic bearings
-
- 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
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/29—Three-dimensional machined; miscellaneous
- F05D2250/291—Three-dimensional machined; miscellaneous hollowed
-
- 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
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/29—Three-dimensional machined; miscellaneous
- F05D2250/293—Three-dimensional machined; miscellaneous lathed, e.g. rotation symmetrical
-
- 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
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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
Definitions
- the present invention relates to a high-speed rotating shaft of a supercharger.
- turbocharger Compressing air or air-fuel mixture supplied to a cylinder of an internal combustion engine in advance is called supercharging, and the compressor is called a supercharger.
- a turbocharger that performs supercharging using the exhaust gas of the engine is called an exhaust turbine supercharger, or a turbocharger for short.
- the turbocharger is simply referred to as “supercharger”.
- FIG. 1 is an overall configuration diagram showing an example of a conventional turbocharger.
- the turbocharger includes a turbine rotor shaft 1, a compressor impeller 2, a bearing housing 3, a turbine housing 4, a compressor housing 5a, a seal plate 5b, and the like.
- the bearing housing 3, the turbine housing 4, the compressor housing 5a, and the seal plate 5b are connected to each other in the illustrated order.
- the turbine impeller la and the rotor shaft lb are integrally formed by welding or the like.
- the turbine rotor shaft 1 is rotatably supported by a radial bearing in the bearing nozzle 3 and is coaxially connected to the compressor impeller 2. .
- the turbine impeller la is rotationally driven by the exhaust gas of the internal combustion engine, the rotational force is transmitted to the compressor impeller 2 via the rotor shaft lb, and this is rotationally driven to compress the air (or mixture).
- the performance of the internal combustion engine can be greatly improved by supplying it to the internal combustion engine.
- FIG. 1 the rotation of the turbine impeller la is supported in the radial direction by two floating metals 6a and 6b, and the thrust direction is supported by the turbine side thrust bearing 8a and the compressor side thrust bearing 8b via the thrust collar 7. Is done.
- 9 is a drainer and 6c is a bearing spacer.
- the turbine rotor shaft 1 and the compressor impeller 2 rotate at a high speed of tens of thousands to several hundred thousand min? 1 .
- Floating metal 6a, 6b is a turbine rotor Since it floats with respect to the shaft 1, it does not rotate at the same speed, but rotates at a lower speed than the turbine rotor shaft, and the thrust collar 7 is fitted and connected to the turbine rotor shaft. Rotates at the same speed as the axis. Accordingly, the floating metals 6a and 6b and the thrust collar 7 support radial force and thrust force while rotating at high speeds. Further, in order to reduce the sliding resistance during the rotation, the lubricating oil is always supplied to the sliding portion from the oil passage 3a provided in the bearing housing 3.
- Patent Documents 1 to 3 have already been disclosed as bearing structures for turbine rotor shafts that rotate at high speed.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-110577, “Supercharger Bearing Device”
- Patent Document 2 JP 2001-295655 A, “Supercharger Bearing Structure”
- Patent Document 3 JP-A-2005-23920, “Supercharger Bearing Structure”
- the high-speed rotating shaft (turbine rotor shaft) of a conventional turbocharger is usually supported by two radial bearings spaced apart from each other by a certain distance.
- the natural frequency ⁇ of the high-speed rotating shaft can be expressed by an approximation of equation (1) when only the high-speed rotating shaft excluding the turbine and compressor at both ends is used.
- L is the distance between the bearing centers
- E is the longitudinal elastic modulus of the high-speed rotating shaft
- I is the secondary moment of inertia of the high-speed rotating shaft
- density is the density
- A is the cross-sectional area.
- the high-speed rotating shaft of the conventional turbocharger has been designed such that the secondary critical speed is sufficiently high with respect to the rated speed, that is, the maximum designed speed. With that design, 1 The next critical speed also increased, and when the rotational speed of the high-speed rotating shaft passed the primary critical speed during operation, the excitation energy for the turbocharger increased, and the vibration and noise increased.
- an object of the present invention is to provide a high-speed rotating shaft of a supercharger capable of lowering the primary dangerous speed while suppressing the decrease of the secondary dangerous speed with respect to the rated rotational speed.
- the turbine impeller is rotatably supported by two radial bearings spaced apart from each other, and the turbine impeller fixed at one end and the compressor impeller fixed at the other end are directly connected to rotate the turbine impeller.
- a thin shaft portion having a diameter smaller than that of the bearing portion is provided at an intermediate portion of the bearing, and the thin shaft portion is connected to a turbine side start point of the thin shaft portion and a compressor with respect to the center of the distance between the two radial bearings.
- a high-speed rotating shaft of a supercharger is provided, characterized in that the center of the distance from the end point on the compressor side is offset toward the compressor side.
- the offset amount, diameter, and length of the thin shaft portion lower the primary dangerous speed while suppressing a decrease in the secondary dangerous speed with respect to the rated rotational speed.
- the thin shaft portion having a smaller diameter than the bearing portion is provided between the bearings of the high-speed rotation shaft.
- the primary critical speed of bending the high-speed rotating shaft can be reduced. This can reduce vibration and noise when the rotational speed of the high-speed rotating shaft passes the primary critical speed while the turbocharger is in operation.
- the shaft diameter of the turbine side part corresponding to the abdomen of the secondary vibration mode has almost the same diameter as the bearing part, the rigidity of the shaft located at the abdomen of the bending secondary vibration mode does not decrease, so Even if the reduction in the critical speed is small, the amount of reduction in the secondary critical speed can be controlled to be smaller than the primary critical speed, thereby increasing the stability of the shaft system and improving the reliability. Monkey.
- FIG. 1 is an overall configuration diagram showing an example of a conventional turbocharger.
- FIG. 2A is a diagram showing a primary vibration mode of a both-end support shaft.
- FIG. 2B is a diagram showing a secondary vibration mode of the both-end support shaft.
- FIG. 2C is a diagram showing a third-order vibration mode of the both-end support shaft.
- FIG. 3 is an overall configuration diagram of a high-speed rotation shaft according to the present invention.
- FIG. 4A is an explanatory diagram of the high-speed rotation shaft in FIG. 3 when there is no thin shaft portion.
- FIG. 4B is an explanatory diagram of the high-speed rotation shaft in FIG. 3 when the shaft extraction length is maximum.
- FIG. 4C is an explanatory diagram of the high-speed rotation shaft in FIG. 3 when the shaft extraction length is intermediate.
- 4D is an explanatory diagram of the high-speed rotation shaft in FIG. 3 when the shaft extraction length is intermediate.
- FIG. 5 is a diagram showing the relationship between the shaft extraction length of the high-speed rotation shaft in FIG. 3 and the critical speed.
- FIG. 3 is an overall configuration diagram of a high-speed rotating shaft according to the present invention. As shown in this figure, the high-speed rotating shaft 10 of the present invention is rotatably supported by two radial bearings 12a and 12b with a constant interval L therebetween.
- the radial bearings 12a, 12b are journal bearings that are integrally connected.
- the present invention is not limited to this, and may be separate as shown in FIG.
- radial The bearings 12a and 12b may be so-called floating bearings that can rotate with respect to the bearing housing, semi-floating bearings that can move only in the radial direction without rotating, or fixed bearings that are completely fixed.
- the radial bearings 12a and 12b may be gas bearings or rolling bearings.
- the high-speed rotating shaft 10 of the present invention has a turbine impeller la fixed to one end (the left end in the figure), a compressor impeller 2 fixed to the other end, and the turbine impeller la and the compressor impeller 2 are directly connected, The rotational driving force of the turbine impeller 1 a is transmitted to the compressor impeller 2.
- the high-speed rotating shaft 10 of the present invention further has a thin shaft portion 14 (diameter d) having a diameter smaller than the diameter D of the bearing portion between the bearings.
- FIG. 4A to 4D are explanatory diagrams of the high-speed rotation shaft 10 of FIG. In this figure, Figure 4A shows
- the length of the thin shaft portion 14 (referred to as “shaft extraction length”) is the maximum (L1
- an alternate long and short dash line A is the center of the interval L between the radial bearings 12a and 12b and corresponds to the abdomen of the bending primary vibration mode.
- the two broken lines Bl and B2 indicate the positions of 1Z4 and 3Z4 at the distance L between the radial bearings 12a and 12b, and correspond to the abdomen of the secondary vibration mode of bending.
- the high-speed rotating shaft 10 of the present invention corresponds to FIG. 4D, the thin shaft portion 14 is offset by a distance e to the compressor side, and the turbine side portion corresponding to the abdomen B1 of the bending secondary vibration mode is almost the same as the bearing portion. Have the same diameter. That is, in the thin shaft portion 14, the center of the distance between the turbine side start point and the compressor end point of the thin shaft portion 14 is on the compressor side with respect to the center of the distance between the shafts of the two radial bearings 12a and 12b. Offset to approach.
- FIG. 4C is a comparative example and is different from FIG. 4D in that there is no offset.
- the offset amount e, diameter d, and length L2 of the thin shaft portion 14 can be freely set as long as the turbine side portion corresponding to the abdomen B1 of the bending secondary vibration mode can be held at substantially the same diameter as the bearing portion. Can be set.
- the primary dangerous speed is reduced for the predetermined rated speed, and the secondary speed is further reduced. It is recommended to set the offset amount e, diameter d, and length L2 by computer simulation so that the critical speed reduction amount (or percentage) does not exceed the primary critical speed reduction quantity (or percentage).
- the narrow shaft portion 14 is offset to the compressor side, and the turbine side portion corresponding to the abdominal portion B1 of the bending secondary vibration mode has substantially the same diameter as the bearing portion. Since the rigidity of the positioned shaft does not decrease, the decrease of the bending secondary critical speed can be suppressed to the minimum, the stability of the shaft system can be increased, and the reliability can be improved.
- the turbine side portion corresponding to the abdomen B1 in the secondary vibration mode of bending may be thicker than the thin shaft portion 14 and thinner than the bearing portion as long as the decrease in the secondary bending critical speed can be suppressed. Further, this portion may be thicker than the thin shaft portion 14 and the bearing portion.
- FIG. 5 is a diagram showing the relationship between the shaft extraction length of the high-speed rotation shaft of FIG. 3 and the dangerous speed obtained by computer simulation.
- the horizontal axis is the length of the thin shaft portion 14 (shaft extraction length)
- the vertical axis is the ratio (%) to the rated rotational speed.
- the lower two broken lines in the figure indicate the primary dangerous speed
- the upper two solid lines indicate the secondary dangerous speed.
- symbols A to D in the figure correspond to A to D in the figure.
- the shaft extraction length is the maximum (L1).
- the primary critical speed can be reduced, but at the same time, the secondary critical speed also decreases, so the secondary critical speed approaches the rated speed and the shaft system becomes unstable. You can see this.
- the present invention is not limited to this, and the computer Stain It is recommended to set the optimum offset amount e, diameter d, and length L2 for the specified rated speed with the urease.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780010293XA CN101405480B (zh) | 2006-03-23 | 2007-01-31 | 增压机的高速旋转轴 |
US12/280,816 US8157543B2 (en) | 2006-03-23 | 2007-01-31 | High-speed rotating shaft of supercharger |
JP2008506186A JP4600788B2 (ja) | 2006-03-23 | 2007-01-31 | 過給機の高速回転軸 |
EP07707793.1A EP1998008B1 (en) | 2006-03-23 | 2007-01-31 | High-speed rotating shaft arrangement for supercharger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-080527 | 2006-03-23 | ||
JP2006080527 | 2006-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007108234A1 true WO2007108234A1 (ja) | 2007-09-27 |
Family
ID=38522271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/051607 WO2007108234A1 (ja) | 2006-03-23 | 2007-01-31 | 過給機の高速回転軸 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8157543B2 (ja) |
EP (1) | EP1998008B1 (ja) |
JP (1) | JP4600788B2 (ja) |
KR (1) | KR101153309B1 (ja) |
CN (1) | CN101405480B (ja) |
WO (1) | WO2007108234A1 (ja) |
Cited By (2)
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WO2018087808A1 (ja) * | 2016-11-08 | 2018-05-17 | 三菱重工コンプレッサ株式会社 | 回転機械 |
WO2019162989A1 (ja) * | 2018-02-20 | 2019-08-29 | 三菱重工エンジン&ターボチャージャ株式会社 | 過給機 |
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WO2013058500A1 (ko) * | 2011-10-18 | 2013-04-25 | 주식회사 에이치케이터빈 | 반작용식 터빈 |
KR101392495B1 (ko) * | 2011-10-18 | 2014-05-12 | 주식회사 에이치케이터빈 | 반작용식 터빈장치 |
US9353637B2 (en) * | 2012-05-11 | 2016-05-31 | Honeywell International Inc. | Turbine exhaust housing |
US9404534B2 (en) * | 2012-11-30 | 2016-08-02 | Honeywell International Inc. | Rotating assemblies of turbomachinery, foil journal bearing assemblies thereof, and methods for producing journals of the foil journal bearing assemblies |
RU2528789C1 (ru) * | 2013-10-07 | 2014-09-20 | Юрий Борисович Назаренко | Способ монтажа ротора газотурбинного двигателя |
WO2015125239A1 (ja) * | 2014-02-19 | 2015-08-27 | 三菱重工コンプレッサ株式会社 | 回転システム |
RU2578500C1 (ru) * | 2014-12-30 | 2016-03-27 | Юрий Борисович Назаренко | Способ монтажа ротора газотурбинного двигателя |
US9650913B2 (en) | 2015-03-09 | 2017-05-16 | Caterpillar Inc. | Turbocharger turbine containment structure |
US9683520B2 (en) | 2015-03-09 | 2017-06-20 | Caterpillar Inc. | Turbocharger and method |
US9638138B2 (en) | 2015-03-09 | 2017-05-02 | Caterpillar Inc. | Turbocharger and method |
US9903225B2 (en) | 2015-03-09 | 2018-02-27 | Caterpillar Inc. | Turbocharger with low carbon steel shaft |
US10006341B2 (en) | 2015-03-09 | 2018-06-26 | Caterpillar Inc. | Compressor assembly having a diffuser ring with tabs |
US9810238B2 (en) | 2015-03-09 | 2017-11-07 | Caterpillar Inc. | Turbocharger with turbine shroud |
US10066639B2 (en) | 2015-03-09 | 2018-09-04 | Caterpillar Inc. | Compressor assembly having a vaneless space |
US9822700B2 (en) | 2015-03-09 | 2017-11-21 | Caterpillar Inc. | Turbocharger with oil containment arrangement |
US9739238B2 (en) | 2015-03-09 | 2017-08-22 | Caterpillar Inc. | Turbocharger and method |
US9890788B2 (en) | 2015-03-09 | 2018-02-13 | Caterpillar Inc. | Turbocharger and method |
US9752536B2 (en) | 2015-03-09 | 2017-09-05 | Caterpillar Inc. | Turbocharger and method |
US9915172B2 (en) | 2015-03-09 | 2018-03-13 | Caterpillar Inc. | Turbocharger with bearing piloted compressor wheel |
US9879594B2 (en) | 2015-03-09 | 2018-01-30 | Caterpillar Inc. | Turbocharger turbine nozzle and containment structure |
US9732633B2 (en) | 2015-03-09 | 2017-08-15 | Caterpillar Inc. | Turbocharger turbine assembly |
US9777747B2 (en) | 2015-03-09 | 2017-10-03 | Caterpillar Inc. | Turbocharger with dual-use mounting holes |
DE112016003653B4 (de) * | 2015-08-11 | 2021-05-20 | Ihi Corporation | Lagerstruktur und Turbolader |
JP6809358B2 (ja) * | 2017-04-24 | 2021-01-06 | いすゞ自動車株式会社 | ターボチャージャ用シャフト及びターボチャージャ |
FR3074622B1 (fr) | 2017-12-04 | 2021-07-30 | Ifp Energies Now | Dispositif de compression d'un fluide entraine par une machine electrique avec un arbre de rotor ayant une frette amagnetique |
FR3078205B1 (fr) | 2018-02-16 | 2020-02-28 | IFP Energies Nouvelles | Machine electrique a grille statorique comprenant des appendices aerodynamiques |
FR3078844B1 (fr) | 2018-03-08 | 2021-10-08 | Ifp Energies Now | Machine electrique a double flux |
WO2020005262A1 (en) * | 2018-06-28 | 2020-01-02 | Borgwarner Inc. | Bearing element with a smooth continuous profile |
FR3089712B1 (fr) * | 2018-12-11 | 2023-03-10 | Ifp Energies Now | Stator de machine électrique avec une couronne formée d’une pluralité de segments de stator |
FR3092449B1 (fr) | 2019-02-04 | 2022-01-14 | Ifp Energies Now | Dispositif de compression d’un fluide entraîné par une machine électrique avec arbre de compression traversant le rotor |
FR3092448B1 (fr) | 2019-02-04 | 2021-01-15 | Ifp Energies Now | Dispositif de compression d’un fluide entraîné par une machine électrique avec rotor équipé d’un aimant cylindrique plein |
EP3745559B1 (en) * | 2019-05-27 | 2022-03-09 | Magnax Bv | Stator for an axial flux machine |
FR3101208B1 (fr) | 2019-09-23 | 2023-06-30 | Ifp Energies Now | Rotor à aimantation transitoire hybride |
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Also Published As
Publication number | Publication date |
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KR20080105054A (ko) | 2008-12-03 |
US8157543B2 (en) | 2012-04-17 |
CN101405480A (zh) | 2009-04-08 |
EP1998008B1 (en) | 2019-03-13 |
US20090056332A1 (en) | 2009-03-05 |
CN101405480B (zh) | 2011-09-21 |
EP1998008A4 (en) | 2014-03-26 |
JP4600788B2 (ja) | 2010-12-15 |
JPWO2007108234A1 (ja) | 2009-08-06 |
EP1998008A1 (en) | 2008-12-03 |
KR101153309B1 (ko) | 2012-06-05 |
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