CN101949309A - Semi-floating and semi-ball bearing turbocharger - Google Patents
Semi-floating and semi-ball bearing turbocharger Download PDFInfo
- Publication number
- CN101949309A CN101949309A CN2010102793086A CN201010279308A CN101949309A CN 101949309 A CN101949309 A CN 101949309A CN 2010102793086 A CN2010102793086 A CN 2010102793086A CN 201010279308 A CN201010279308 A CN 201010279308A CN 101949309 A CN101949309 A CN 101949309A
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- bearing
- ball bearing
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- floating
- thrust
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Abstract
The invention discloses a semi-floating and semi-ball bearing turbocharger. The turbocharger comprises a rotor shaft provided with a turbine and an impeller, a middle body and a diffusion plate arranged between the impeller and the middle body, wherein the rotor shaft is supported in the middle body by a ball bearing and a floating bearing; the ball bearing is a hybrid ceramic angular contact ball bearing, a thrust bearing is arranged on the ball bearing to fit with a first bearing arranged on the side near the impeller; an elastic thrust plate is arranged on the other side relative to the side with the thrust bearing; and the inside of the middle body is provided with an oil passage which is communicated with the ball bearing, the floating bearing and the thrust bearing. The semi-floating and semi-ball bearing turbocharger has simple structure, higher start-up response speed and better acceleration performance, dynamic characteristic and control feeling of vehicle; and as the friction of the ball bearing is low, the turbocharger has low demand on the lubricating oil and higher actual service life.
Description
Technical field
The present invention relates to a kind of turbosupercharger, particularly a kind of semifloating, half ball bearing turbosupercharger.
Background technique
The waste gas that turbosupercharger relies on motor to discharge promotes, and not only operating temperature is very high, and the rotating speed of rotor is also high, can reach per minute tens0000 commentaries on classics.So high rotating speed and temperature makes common mechanical needle roller or ball bearing can't be working rotor, therefore exhaust-gas turbocharger generally adopts the full floating bearing at present, be lubricated and cool off by machine oil, the wholly floating bearing is certain radial clearance between axle and the axle sleeve, and the lubricant oil by certain pressure floats rotor entirely.The rotor bearing of pressurized machine is to support pattern in adopting, and the full-floating type axle has two floating bearings usually in two end supports in the intermediate between two impellers, and the axial force of rotor is born by the thrust bearing end face.The pressurized machine of full floating bearing structure has a shortcoming, it is exactly the hysteresis quality of supercharging, the reason that causes this situation be since the inertia of supercharger rotor and frictional force action make its to vehicle accelerator when rapid reacting condition slow, thereby make motor postpone to increase output power, be embodied in unexpected acceleration or when overtaking other vehicles, moment has the sensation of putting forward not energetically, simultaneously because the friction of floating bearing is bigger, working life is short, and to the requirement height of lubricating oil.
Summary of the invention
The object of the present invention is to provide a kind of semifloating, half ball bearing turbosupercharger, it has simple in structure, and speed of response is fast, the characteristics of bearing long service life.
The objective of the invention is to be achieved through the following technical solutions:
A kind of semifloating, half ball bearing turbosupercharger, it comprises the rotor shaft that turbine and impeller are installed, intermediate, be arranged at the diffusion plate between impeller and the intermediate, described rotor shaft is arranged in intermediate by the clutch shaft bearing and second bearings, and cooperates described clutch shaft bearing near impeller one side to be provided with thrust bearing, wherein, described clutch shaft bearing is a ball bearing, and second bearing is a floating bearing.
Described ball bearing is a mixing angle contact ceramic balls bearing.
Described ball bearing is provided with the elasticity thrust plate with respect to the opposite side that thrust bearing is set.
Be provided with equal and clutch shaft bearing in the described intermediate, the oil leab that second bearing and thrust bearing are connected.
Beneficial effect of the present invention is, described semifloating, half ball bearing turbosupercharger are compared with the full floating bearing turbosupercharger that generally adopts now, starting response performance obviously improves, in actual applications, can improve 25% speed of response, because it is the friction of ball bearing is still less, low to the also more common floating bearing of the requirement of lubricating oil, also improve 20% actual life, improved vehicle accelerating ability energy, kinaestheic and manipulation sense simultaneously greatly.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structural representation of semifloating of the present invention, half ball bearing turbosupercharger;
Among the figure:
1, impeller; 2, thrust bearing; 3, diffusion plate; 4, ball bearing; 5, intermediate; 6, elasticity thrust plate; 7, floating bearing; 8, turbine; 9, rotor shaft; 10, oil leab.
Embodiment
Please refer to shown in Figure 1ly, Fig. 1 is the structural representation of semifloating of the present invention, half ball bearing turbosupercharger.In present embodiment, a kind of semifloating, half ball bearing turbosupercharger, it comprises rotor shaft 9, turbine 8 and impeller 1 are installed on the described rotor shaft 9, and the outer installment of described rotor shaft 9 has passive intermediate 5, be provided with diffusion plate 3 between described impeller 1 and the intermediate 5, described rotor shaft 9 is supported by ball bearing 4 and floating bearing 7 and is arranged in intermediate 5, described ball bearing 4 is mixing angle contact ceramic balls bearing, and described ball bearing 4 is arranged at the side near impeller 1, and cooperate described ball bearing 4 to be provided with thrust bearing 2, the axial force that described thrust bearing 2 bear rotor axles produce, described ball bearing 4 is provided with elasticity thrust plate 6 with respect to the opposite side that thrust bearing 2 is set, described elasticity thrust plate 6 plays flexibility and limits the centrifugal load of high rotating speed ball in the bearing race that is passed over by bearing angle contacting face acceptably, and be provided with in the described intermediate 5 all and ball bearing 4, the oil leab 10 that floating bearing 7 and thrust bearing 2 are connected.
Described ball bearing 4 adopts mixing angle contact ceramic balls bearing, it mainly is to be embedded in the steel ball that replaces plain ball bearing between the inside and outside circle of steel bearing with ceramic ball for a mixing angle contact ceramic balls bearing, 50% waste gas can be promoted impeller in axial thrust deflexion simultaneously, play the effect that reduces to rub, speed of response is just faster, and ceramic bead not only reduces the temperature rising, and the weight of the steel ball nearly 40% that reduces, thereby improve the startability that Young's modulus improves bearing, reduce the centrifugal force of steel ball, improve the life-span of bearing.
Claims (4)
1. a semifloating, half ball bearing turbosupercharger, it comprises the rotor shaft that turbine and impeller are installed, intermediate, be arranged at the diffusion plate between impeller and the intermediate, described rotor shaft is arranged in intermediate by the clutch shaft bearing and second bearings, and cooperate described clutch shaft bearing near impeller one side to be provided with thrust bearing, it is characterized in that: described clutch shaft bearing is a ball bearing, and second bearing is a floating bearing.
2. semifloating according to claim 1, half ball bearing turbosupercharger is characterized in that: described ball bearing is a mixing angle contact ceramic balls bearing.
3. according to claim 1 or 2 each described semifloatings, half ball bearing turbosupercharger, it is characterized in that: described ball bearing is provided with the elasticity thrust plate with respect to the opposite side that thrust bearing is set.
4. semifloating according to claim 3, half ball bearing turbosupercharger is characterized in that: be provided with all and clutch shaft bearing the oil leab that second bearing and thrust bearing are connected in the described intermediate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102793086A CN101949309A (en) | 2010-09-13 | 2010-09-13 | Semi-floating and semi-ball bearing turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102793086A CN101949309A (en) | 2010-09-13 | 2010-09-13 | Semi-floating and semi-ball bearing turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101949309A true CN101949309A (en) | 2011-01-19 |
Family
ID=43452922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102793086A Pending CN101949309A (en) | 2010-09-13 | 2010-09-13 | Semi-floating and semi-ball bearing turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101949309A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954106A (en) * | 2012-12-04 | 2013-03-06 | 三一能源重工有限公司 | Integral semi-floating bearing and turbocharger comprising same |
| CN103953398A (en) * | 2014-05-15 | 2014-07-30 | 湖南天雁机械有限责任公司 | Exhaust gas complementary energy utilization device and system of supercharged engine |
| CN107387174A (en) * | 2017-07-25 | 2017-11-24 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
| JP2018536800A (en) * | 2015-11-05 | 2018-12-13 | アーベーベー ターボ システムズ アクチエンゲゼルシャフト | Shaft seal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721441A (en) * | 1984-09-03 | 1988-01-26 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Bearing device for turbocharger |
| CN2257861Y (en) * | 1994-09-24 | 1997-07-16 | 孙敏超 | Mixed-flow turbocharger |
| US5967762A (en) * | 1996-03-18 | 1999-10-19 | Turbonetics, Inc. | Turbocharger for high performance internal combustion engines |
| CN2839564Y (en) * | 2005-11-04 | 2006-11-22 | 温岭市荣发动力制造有限公司 | Petrol engine turbocharger |
| CN201771555U (en) * | 2010-09-13 | 2011-03-23 | 无锡科博增压器有限公司 | Half-floatation, half ball bearing turbocharger |
-
2010
- 2010-09-13 CN CN2010102793086A patent/CN101949309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721441A (en) * | 1984-09-03 | 1988-01-26 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Bearing device for turbocharger |
| CN2257861Y (en) * | 1994-09-24 | 1997-07-16 | 孙敏超 | Mixed-flow turbocharger |
| US5967762A (en) * | 1996-03-18 | 1999-10-19 | Turbonetics, Inc. | Turbocharger for high performance internal combustion engines |
| CN2839564Y (en) * | 2005-11-04 | 2006-11-22 | 温岭市荣发动力制造有限公司 | Petrol engine turbocharger |
| CN201771555U (en) * | 2010-09-13 | 2011-03-23 | 无锡科博增压器有限公司 | Half-floatation, half ball bearing turbocharger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954106A (en) * | 2012-12-04 | 2013-03-06 | 三一能源重工有限公司 | Integral semi-floating bearing and turbocharger comprising same |
| CN103953398A (en) * | 2014-05-15 | 2014-07-30 | 湖南天雁机械有限责任公司 | Exhaust gas complementary energy utilization device and system of supercharged engine |
| JP2018536800A (en) * | 2015-11-05 | 2018-12-13 | アーベーベー ターボ システムズ アクチエンゲゼルシャフト | Shaft seal |
| CN107387174A (en) * | 2017-07-25 | 2017-11-24 | 湖南天雁机械有限责任公司 | Turbocharger with angular contact ceramic ball bearing |
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Application publication date: 20110119 |