CN202756088U - Turbocharger low damping oil film suspension support structure - Google Patents
Turbocharger low damping oil film suspension support structure Download PDFInfo
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- CN202756088U CN202756088U CN 201220430944 CN201220430944U CN202756088U CN 202756088 U CN202756088 U CN 202756088U CN 201220430944 CN201220430944 CN 201220430944 CN 201220430944 U CN201220430944 U CN 201220430944U CN 202756088 U CN202756088 U CN 202756088U
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- oil film
- turbine shaft
- oil
- film groove
- oil inlet
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- Sliding-Contact Bearings (AREA)
Abstract
A turbocharger low damping oil film suspension support structure comprises a bearing body, oil inlet holes, an surface excircle and a matched inner hole surface, wherein the oil inlet holes are evenly formed in the excircle surface along the circumferential direction, an oil film groove is arranged in a matched inner hole, the arranged position of oil film groove corresponds to the oil inlet holes, and the oil film groove is communicated with the oil inlet holes, the shape of a cross section of the oil film groove is in a wedge block shape, and the depth of the oil film groove is gradually decreased along the rotation direction of a turbine shaft. High pressure lubricating oil enters into the oil film groove through the oil inlet holes, an oil film layer capable of supporting the turbine shaft can be rapidly formed between a slide bearing and the turbine shaft, the turbine shaft can be automatically located in the inner hole of the slide bearing, when the turbine shaft runs, non-contact support can be achieved between the turbine shaft and the slide bearing, and running resistance of a turbocharger is reduced; the specific structure of the oil film groove is favorable for achieving rotation between the turbine shaft and the slide bearing under the action of the pressure lubricating oil, so that running resistance of the turbine shaft is further decreased, and low damping running of the turbocharger is achieved.
Description
[technical field]
The utility model relates to a kind of gas-discharging type turbosupercharger, relates in particular to be used for supporting turbine shaft rotor part supporting structure in the gas-discharging type turbosupercharger.
[background technique]
The gas-discharging type turbosupercharger is to utilize the high-pressure high-temperature waste gas of diesel engine discharge as power source, the high temperature pressure waste gas that diesel engine is discharged is introduced the turbo machine in the turbosupercharger, the turbine that utilizes the contained energy of waste gas to promote in the turbo machine rotates, thereby drive the turbine rotation, driving simultaneously coaxial with it compressor impeller rotates, by gas compressor air amount is carried out the boost gas handling system of rear delivering diesel of contractive pressure, in cylinder of diesel engine, be filled with high-density air, can improve each diesel injection amount, both can improve the output power of same model diesel engine, also can improve the remarkable Economy of improving diesel engine, impel diesel oil fully to burn, improve the thermal efficiency of diesel engine, Reduce fuel consuming rate reduces noxious gas emission, reduce noise, therefore, diesel engine for automobile and marine diesel engine all need to mate turbosupercharger, and continuous-pressure breathing is the developing direction of diesel engine.
Using the most general turbosupercharger at present is the gas-discharging type turbosupercharger, it comprises turbine case, turbine, turbine shaft, intermediate, sliding bearing, supercharging impeller and pressure shell, turbine and supercharging impeller are installed in respectively the two ends of turbine shaft, turbine is arranged in turbine case, supercharging impeller is arranged in pressure shell, turbine shaft is installed on the intermediate by two sliding bearings, turbine case and pressure shell are fixedly mounted on respectively the both sides of intermediate hermetically, and two sliding bearings are lubricated by lubricant oil with pressure and cool off.Sliding bearing circumferentially be provided with equably oil inlet hole, be convenient to the surface of contact that lubricant oil can enter turbine shaft and sliding bearing, satisfy sufficient lubrication and cooling requirement.
Yet the running resistance of existing gas-discharging type turbosupercharger is also larger, directly has influence on the further raising of turbocharger supercharged effect, and through claimant long-term practice and analysis, the running resistance of gas-discharging type turbosupercharger mainly comes from following 2 points:
1. the rotary seal place friction between turbine shaft and intermediate two ends;
2. rotate friction between turbine shaft and two sliding bearings;
Wherein, rotate dyanainic friction between the sealing configuration at turbine shaft and intermediate two ends inevitable, otherwise just can't seal, cooperate between sliding bearing and the turbine shaft and rotate friction further improved space is then arranged, this cooperating structure is improved and optimizes is the effective way that reduces gas-discharging type turbosupercharger resistance to motion.For the running resistance that overcomes existing gas-discharging type turbosupercharger is larger, further improve turbocharger supercharged effect, the claimant develops a kind of low resistance Turbochargers in Diesel Engines.Wherein the oil film suspension bearing helps that to turn sliding bearing be core part.
[model utility content]
The purpose of this utility model provides a kind of turbosupercharger low resistance oil film suspension bearing structure.
The technological scheme that the utility model is taked is:
A kind of turbosupercharger low resistance oil film suspension bearing structure, comprise turbine, turbine shaft, sliding bearing, intermediate, diffusion plate and supercharging impeller, turbine and supercharging impeller are installed in respectively the two ends of turbine shaft, turbine shaft is installed on the intermediate by two sliding bearings, left side and the intermediate of diffusion plate link into an integrated entity hermetically, lubricating oil path on the intermediate and two sliding bearings interlink, described sliding bearing comprises bearing body, oil inlet hole, the oil film groove, outer round surface and cooperation endoporus, oil inlet hole is along circumferentially being arranged on equably on the outer round surface of sliding bearing, cooperation endoporus at sliding bearing is provided with the oil film groove, the setting position of oil film groove is corresponding with oil inlet hole, and oil film groove and oil inlet hole interlink, the shape of cross section of described oil film groove is truncated wedge, and the degree of depth of oil film groove reduces gradually along the sense of rotation of turbine shaft.
Further, the quantity of oil inlet hole and oil film groove is 3 ~ 6 on same circumference.
Further, the end face of described oil film groove is the plane.
Further, the end face of described oil film groove is cambered surface.
Owing to having offered oil inlet hole at the outer round surface of sliding bearing, cooperation endoporus at sliding bearing offers the oil film groove, and oil inlet hole and oil film groove are on the same circumference, both lead to mutually, when the oil inlet hole of extreme pressure lubricant from sliding bearing of booster intermediate body enters the oil film groove, can between sliding bearing and turbine shaft fitting surface, form fast the high pressure oil rete of supporting turbine shaft, make turbine shaft automatically be in the center of sliding bearing endoporus, when operation, realize the floating outstanding supporting structure form of contactless high pressure oil film between turbine shaft and the sliding bearing, reduced to greatest extent the running resistance of turbosupercharger; The shape of cross section of oil film groove is designed to be conducive to realize auxiliary rotary between turbine shaft and the sliding bearing under the pressure lubrication oil effect along the grading structure that the turbine shaft sense of rotation reduces gradually, further reduce the rotational resistance of turbine shaft, so that the rotor part of turbosupercharger is realized low friction, low resistance running, improved the pressurized effect of turbosupercharger.
[description of drawings]
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of sliding bearing;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the configuration diagram that the utility model is used in the gas-discharging type turbosupercharger;
Among the figure, the 1-turbine case; The 2-turbine; The 3-turbine shaft; The 4-sliding bearing; The 5-intermediate; The 6-diffusion plate; The 7-supercharging impeller; The 8-pressure shell; The 9-heat shield; The 41-bearing body; The 42-oil inlet hole; 43-oil film groove; The 44-outer round surface; 45-cooperates endoporus; The 46-end face; The 51-lubricating oil path.
[embodiment]
Below in conjunction with description of drawings embodiment of the present utility model:
Embodiment 1:
A kind of turbosupercharger low resistance oil film suspension bearing structure, as shown in Figure 1, it comprises turbine 2, turbine shaft 3, sliding bearing 4, intermediate 5, diffusion plate 6 and supercharging impeller 7, turbine 2 and supercharging impeller 7 are installed in respectively the two ends of turbine shaft 3, turbine shaft 3 is installed on the intermediate 5 by two sliding bearings 4, the left side of diffusion plate 6 and intermediate 5 link into an integrated entity hermetically, lubricating oil path 51 on the intermediate 5 and two sliding bearings 4 interlink, described sliding bearing 4 comprises bearing body 41, oil inlet hole 42, oil film groove 43, outer round surface 44 and cooperation endoporus 45, oil inlet hole 42 is along circumferentially being arranged on equably on the outer round surface 44 of sliding bearing, cooperation endoporus 45 at sliding bearing 4 is provided with oil film groove 43, the setting position of oil film groove 43 is corresponding with oil inlet hole 42, and oil film groove 43 interlinks with oil inlet hole 42, the shape of cross section of described oil film groove 43 is truncated wedge, and the degree of depth of oil film groove 43 reduces gradually along the sense of rotation of turbine shaft 3.
Fig. 4 is equipped with a kind of low resistance Turbochargers in Diesel Engines of the present utility model, it comprises turbine case 1, turbine 2, turbine shaft 3, sliding bearing 4, intermediate 5, diffusion plate 6, supercharging impeller 7 and pressure shell 8, turbine case 1 is fixedly mounted on the left side of intermediate 5 of the present utility model, heat shield 9 is between the left side of turbine case 1 and intermediate 5, turbine 2 is arranged in turbine case 1, the right side of pressure shell 8 and diffusion plate 6 is tightly connected and is integral, supercharging impeller 7 is arranged in pressure shell 8, and the lubricating oil path 51 on the intermediate 5 interlinks with high pressure oil pump.
Embodiment 2: be between different from embodiment 1: be provided with two groups of oil inlet holes 42 and oil film groove 43 along axle on sliding bearing 4.
Claims (4)
1. turbosupercharger low resistance oil film suspension bearing structure, it is characterized in that: comprise turbine (2), turbine shaft (3), sliding bearing (4), intermediate (5), diffusion plate (6) and supercharging impeller (7), turbine (2) and supercharging impeller (7) are installed in respectively the two ends of turbine shaft (3), turbine shaft (3) is installed on the intermediate (5) by two sliding bearings (4), the left side of diffusion plate (6) and intermediate (5) link into an integrated entity hermetically, lubricating oil path (51) on the intermediate (5) interlinks with two sliding bearings (4), described sliding bearing (4) comprises bearing body (41), oil inlet hole (42), oil film groove (43), outer round surface (44) and cooperation endoporus (45), oil inlet hole (42) is along circumferentially being arranged on equably on the outer round surface (44) of sliding bearing, cooperation endoporus (45) at sliding bearing (4) is provided with oil film groove (43), the setting position of oil film groove (43) is corresponding with oil inlet hole (42), and oil film groove (43) interlinks with oil inlet hole (42), the shape of cross section of described oil film groove (43) is truncated wedge, and the degree of depth of oil film groove (43) reduces gradually along the sense of rotation of turbine shaft (3).
2. described turbosupercharger low resistance oil film suspension bearing structure according to claim 1, it is characterized in that: the quantity of oil inlet hole on same circumference (42) and oil film groove (43) is 3 ~ 6.
3. described turbosupercharger low resistance oil film suspension bearing structure according to claim 1, it is characterized in that: the end face (46) of described oil film groove (43) is the plane.
4. turbosupercharger low resistance oil film suspension bearing structure according to claim 1 is characterized in that: the end face (46) of described oil film groove (43) is cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430944 CN202756088U (en) | 2012-08-28 | 2012-08-28 | Turbocharger low damping oil film suspension support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430944 CN202756088U (en) | 2012-08-28 | 2012-08-28 | Turbocharger low damping oil film suspension support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756088U true CN202756088U (en) | 2013-02-27 |
Family
ID=47735275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430944 Expired - Fee Related CN202756088U (en) | 2012-08-28 | 2012-08-28 | Turbocharger low damping oil film suspension support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291753A (en) * | 2013-05-17 | 2013-09-11 | 潍坊市明冠节能科技有限公司 | Floating bearing and turbocharger of internal combustion engine |
-
2012
- 2012-08-28 CN CN 201220430944 patent/CN202756088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291753A (en) * | 2013-05-17 | 2013-09-11 | 潍坊市明冠节能科技有限公司 | Floating bearing and turbocharger of internal combustion engine |
| CN103291753B (en) * | 2013-05-17 | 2016-03-23 | 潍坊市明冠节能科技有限公司 | A kind of floating bearing and internal combustion engine turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU SUOTEPOWER ENGINEERING CO., LTD. Free format text: FORMER NAME: CHANGZHOU SUOTE POWER ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213200 9-C, North Gate Road, Jintan, Jiangsu, Changzhou, Danyang Patentee after: Jiangsu Suotepower Engineering Co., Ltd. Address before: 213200 9-C, North Gate Road, Jintan, Jiangsu, Changzhou, Danyang Patentee before: Changzhou Suote Power Engineering Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |