CN100441833C - Mixed ceramic ball bearing turbine supercharger - Google Patents
Mixed ceramic ball bearing turbine supercharger Download PDFInfo
- Publication number
- CN100441833C CN100441833C CNB200510093692XA CN200510093692A CN100441833C CN 100441833 C CN100441833 C CN 100441833C CN B200510093692X A CNB200510093692X A CN B200510093692XA CN 200510093692 A CN200510093692 A CN 200510093692A CN 100441833 C CN100441833 C CN 100441833C
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- CN
- China
- Prior art keywords
- bearing
- ceramic ball
- mixed
- combined bearing
- turbine
- 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.)
- Expired - Fee Related
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Classifications
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- 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
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- 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
Abstract
The present invention discloses a turbine supercharger of a mixed ceramic ball bearing, which comprises a compressor casing, a turbine casing, a bearing body, a sealing sleeve, a turbine rotor and a mixed bearing, wherein the mixed bearing is a mixed ceramic ball bearing. A ceramic ball of the mixed bearing is inlaid between the inner ring of the mixed bearing and the outer ring of the mixed bearing to replace a steel ball of a common ball bearing so as to perform the functions of reducing friction, temperature rise and the requirements to the lubricated condition of the bearing, enhancing elastic modulus so as to enhance the starting performance of the bearing, etc. The present invention adopts the mixed ceramic ball to enhance the speed of the bearing so as to enhance the high-speed performance, the service life and the reliability of a supercharger, and simultaneously, the weight of the bearing is lightened. Compared with an existing oil film bearing, the mixed ceramic ball bearing can bear axial load so as to cancel an anti-thrust bearing and reduce component parts, and moreover, the system structure of a supercharger bearing is simplified.
Description
Technical field
The present invention relates to a kind of turbosupercharger, relate in particular to a kind of hybrid ceramic ball bearing turbine supercharger.
Background technique
Motor adopts turbocharging technology can increase substantially power, reduce exhaust pollution, improve economic performance, and turbosupercharger is one of topmost technological development direction of internal-combustion engine.Therefore, turbosupercharger has obtained increasingly extensive application in recent years.At present, whole world commercial car (truck, motorbus) disposes pressurized machine more than 90%, and passenger car about 10% has adopted pressurized machine.Developing direction is 100% employing turbosupercharger.At present the demand of whole world turbosupercharger increases progressively with the ratio more than 10%, domesticly then increases progressively with about 30% ratio.Therefore the market demand of turbosupercharger is huge, has a extensive future.
At present, the domestic bearing that is used for turbosupercharger has only the slip and (oil film) bearing that floats, and existing abroad ball bearing turbosupercharger, but bearing mainly is all steel ball bearing, mechanical efficiency is lower, and reliability, greasy property are relatively poor, and the important failure mode of turbosupercharger is that (oil film) bearing arrangement lost efficacy, mainly be slide, float (oil film) bearing and thrust bearing friction damage, cause pressurized machine leakage of oil, gas leakage, balance destruction, pressurized machine to damage.
Summary of the invention
In order to solve the problem of above-mentioned existence, the object of the invention has provided and a kind of hybrid ceramic ball ball bearing has been applied on the turbosupercharger, can improve the reliability of turbosupercharger greatly, improve the working life of pressurized machine, and simplify the hybrid ceramic ball bearing turbine supercharger of bearing arrangement structure.
Technical solution of the present invention is achieved in that a kind of hybrid ceramic ball bearing turbine supercharger, comprises compressor casing, turbine case, bearing support, stuffing box gland, turbine rotor, combined bearing, and wherein said combined bearing is a hybrid ceramic ball bearing.
Wherein said combined bearing comprises combined bearing inner ring, combined bearing outer ring and combined bearing ceramic ball.The combined bearing ceramic ball is embedded between combined bearing inner ring and the combined bearing outer ring, plays the effect that reduces to rub.
Can mainly contain as the stupalith of combined bearing ceramic ball structure: silicon nitride (Si
3N
4), silicon carbide (SiC), aluminium oxide (Al
2O
3), zirconium oxide (ZrO
2) four kinds.Silicon nitride (Si the most generally
3N
4).
Described turbosupercharger can have the by-pass valve actuator assembly, also can not have the by-pass valve actuator assembly; Described turbine case can be the turbine case of the variable-geometry cross section structure that has adjustable nozzle ring, variable throat cross section.On such turbosupercharger, can both adopt hybrid ceramic ball bearing.
Because hybrid ceramic ball bearing can bear axial load, so cancelled thrust bearing on the basis of prior art structure, has simplified the bearing arrangement structure.But can reach original effect.
The present invention replaces traditional filmatic bearing and all steel ball bearing with the combined bearing of ceramic ball.The bearing of high speed rotating, rolling element can produce very big centrifugal force and gyrostatic moment, and they are principal elements of restriction bearing limit speed, because centrifugal force and gyrostatic moment and ball material square, thereby the limit speed of raising bearing.
Compared with prior art, the beneficial effects of the utility model are:
1, replace the mixing ball bearing life-span of original steel ball to be better than all steel ball bearing with ceramic ball, better reliability, thus improved the life-span and the reliability of pressurized machine.
2, it is better to have a mixing ball bearing greasy property of ceramic ball, and weight is lighter.Thereby alleviated the engine lubrication performance demands, can suitably alleviate the weight of turbosupercharger.
3, because rolling bearing can bear axial load, so can cancel the thrust bearing that has now in the pressurized machine, reduce part, simplify the bearing arrangement structure.
4, the density of ceramic ball has only 40% of Bearing Steel, therefore, adopt ceramic ball, can realize higher speed, and ceramic ball is under the impact than high loading, the unidimensional ruined probability of steel ball of ruined likelihood ratio is little, and during high speed, the temperature rise of hybrid ceramic ball bearing is lower than the temperature rise of steel bearing.
5, the affinity of pottery and steel is minimum, and ceramic hardness is big, replaces steel ball with ceramic ball, and the pressure ovality of bearing is reduced, and can slow down friction, improves Young's modulus of elasticity, thereby has improved the startability of bearing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail, hybrid ceramic ball bearing turbine supercharger as shown in Figure 1, comprise compressor casing 7, by-pass valve actuator assembly 8, turbine case 9, bearing support 10, stuffing box gland 11, turbine rotor 1, combined bearing and logical oily pin 5, wherein said combined bearing comprises combined bearing inner ring 4, combined bearing outer ring 3, combined bearing ceramic ball 2, combined bearing retainer 6.Combined bearing ceramic ball 2 is embedded between combined bearing inner ring 4 and the combined bearing outer ring 3, constitutes a hybrid ceramic ball bearing, plays the effect that reduces to rub.Combined bearing is positioned on the bearing support 10 by a pin 5 that has oilhole.
Can cancel by-pass valve actuator assembly 8 in Fig. 1, such turbosupercharger also can adopt hybrid ceramic ball bearing.Described turbine case 9 can adopt the turbine case of the variable-geometry cross section structure that has adjustable nozzle ring, variable throat cross section.
Because the bearing of existing pressurized machine mainly adopts the oil-film floating bearing, this bearing can not bear axial load, so, in existing pressurized machine bearing arrangement, the thrust bearing that bears axial load must be set.But hybrid ceramic ball bearing of the present invention is an angular contact ball bearing can be born axial load and can bear radial load again, so can cancel thrust bearing, reduces part, simplifies the bearing arrangement structure, can reach original same effect.
Combined bearing inner ring 4 is installed on 1 of the turbocharger turbine rotor, and turbine end is located by the shaft shoulder, and the gas compressor end compresses the location by the shafting components stuffing box gland 11 of pressurized machine.Bearing outer ring 3 is installed in bearing support 10 endoporus, by logical oily pin 5 location.
Claims (2)
1, a kind of hybrid ceramic ball bearing turbine supercharger, comprise compressor casing, turbine case, bearing support, stuffing box gland, turbine rotor, combined bearing, combined bearing comprises combined bearing inner ring, combined bearing outer ring, combined bearing ceramic ball, combined bearing retainer, it is characterized in that:
Be arranged side by side two row combined bearing ceramic ball between described combined bearing inner ring and the combined bearing outer ring, this two row terra-cotta ball is installed on the combined bearing retainer;
Described combined bearing inner ring is installed on the axle of turbocharger turbine rotor, and turbine end is located by the shaft shoulder, and the gas compressor end compresses the location by the shafting components stuffing box gland of turbosupercharger;
Described combined bearing outer ring is installed in the bearing support endoporus, by a pin location that has oil through.
2, hybrid ceramic ball bearing turbine supercharger according to claim 1 is characterized in that the used stupalith of described hybrid ceramic ball bearing is silicon carbide, aluminium oxide or zirconium oxide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200510093692XA CN100441833C (en) | 2005-09-01 | 2005-09-01 | Mixed ceramic ball bearing turbine supercharger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200510093692XA CN100441833C (en) | 2005-09-01 | 2005-09-01 | Mixed ceramic ball bearing turbine supercharger |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1730914A CN1730914A (en) | 2006-02-08 |
CN100441833C true CN100441833C (en) | 2008-12-10 |
Family
ID=35963326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200510093692XA Expired - Fee Related CN100441833C (en) | 2005-09-01 | 2005-09-01 | Mixed ceramic ball bearing turbine supercharger |
Country Status (1)
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CN (1) | CN100441833C (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101506491B (en) * | 2006-08-24 | 2011-01-26 | Abb涡轮系统有限公司 | Emergency oil tank |
US8186947B2 (en) * | 2008-09-16 | 2012-05-29 | Honeywell International Inc. | Conical pin to maintain bearing system |
CN102168718A (en) * | 2011-04-18 | 2011-08-31 | 无锡市第二轴承有限公司 | Turbocharger bearing |
DE102011078427A1 (en) * | 2011-06-30 | 2013-01-03 | Schaeffler Technologies AG & Co. KG | Press-in force optimized rolling bearing |
CN102585499B (en) * | 2011-12-23 | 2013-08-28 | 洛阳轴研科技股份有限公司 | Method for manufacturing bearing holder tubular billet by ceramic ball-containing composite material |
CN102765941A (en) * | 2012-07-27 | 2012-11-07 | 萍乡市慧成精密机电有限公司 | Ceramic powder turbocharger nozzle ring installation disk and manufacturing method of ceramic powder turbocharger nozzle ring installation disk |
CN102777214B (en) * | 2012-07-27 | 2014-12-03 | 萍乡市慧成精密机电有限公司 | Nozzle blade of ceramic powder turbocharger and manufacturing method thereof |
CN107524480A (en) * | 2017-07-25 | 2017-12-29 | 湖南天雁机械有限责任公司 | Turbocharger bearing body structure with overall ball bearing |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4934837A (en) * | 1988-10-21 | 1990-06-19 | Isuzu Motors Limited | Bearing structure of rotary machine |
JPH06330761A (en) * | 1993-05-24 | 1994-11-29 | Koyo Seiko Co Ltd | Roller bearing for supporting impeller shaft of supercharger |
CN1164267A (en) * | 1994-12-20 | 1997-11-05 | 奥迪股份公司 | Exhaust gas turbo-supercharger |
JPH10246235A (en) * | 1997-03-06 | 1998-09-14 | Koyo Seiko Co Ltd | Ball bearing device for turbocharger |
CN2467801Y (en) * | 2000-12-20 | 2001-12-26 | 中国燃气涡轮研究院 | Rotatable nozzle ring turbo charger |
CN1382897A (en) * | 2001-04-24 | 2002-12-04 | 通用汽车公司 | High thrust turbosupercharger rotor with ball bearing |
JP2003003856A (en) * | 2001-06-22 | 2003-01-08 | Nsk Ltd | Rotary support means for turbocharger |
JP2005163642A (en) * | 2003-12-03 | 2005-06-23 | Koyo Seiko Co Ltd | Turbocharger |
-
2005
- 2005-09-01 CN CNB200510093692XA patent/CN100441833C/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4934837A (en) * | 1988-10-21 | 1990-06-19 | Isuzu Motors Limited | Bearing structure of rotary machine |
JPH06330761A (en) * | 1993-05-24 | 1994-11-29 | Koyo Seiko Co Ltd | Roller bearing for supporting impeller shaft of supercharger |
CN1164267A (en) * | 1994-12-20 | 1997-11-05 | 奥迪股份公司 | Exhaust gas turbo-supercharger |
JPH10246235A (en) * | 1997-03-06 | 1998-09-14 | Koyo Seiko Co Ltd | Ball bearing device for turbocharger |
CN2467801Y (en) * | 2000-12-20 | 2001-12-26 | 中国燃气涡轮研究院 | Rotatable nozzle ring turbo charger |
CN1382897A (en) * | 2001-04-24 | 2002-12-04 | 通用汽车公司 | High thrust turbosupercharger rotor with ball bearing |
JP2003003856A (en) * | 2001-06-22 | 2003-01-08 | Nsk Ltd | Rotary support means for turbocharger |
JP2005163642A (en) * | 2003-12-03 | 2005-06-23 | Koyo Seiko Co Ltd | Turbocharger |
Also Published As
Publication number | Publication date |
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CN1730914A (en) | 2006-02-08 |
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Granted publication date: 20081210 Termination date: 20170901 |