CN201050387Y - Exhaust-driven turbo-charger central rotor device - Google Patents
Exhaust-driven turbo-charger central rotor device Download PDFInfo
- Publication number
- CN201050387Y CN201050387Y CNU2007200235712U CN200720023571U CN201050387Y CN 201050387 Y CN201050387 Y CN 201050387Y CN U2007200235712 U CNU2007200235712 U CN U2007200235712U CN 200720023571 U CN200720023571 U CN 200720023571U CN 201050387 Y CN201050387 Y CN 201050387Y
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- China
- Prior art keywords
- seal ring
- impeller
- oil
- block set
- exhaust
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- Expired - Lifetime
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Abstract
The utility model discloses a core rotor device of a waste gas turbocharger, which comprises a middle shell, a thrust sleeve, a thrust bearing, an oil baffle and a shaft seal. A turbine shaft arranged on one end of the shaft seal is provided with an impeller; the middle shell arranged at one end of the impeller is provided with a chamber in which a sealing ring sleeve base is arranged. The sealing ring sleeve base comprises a ring shape component sealed with the inner wall of the chamber, a sleeved ring sealed moveably with the shaft seal arranged on the turbine shaft. A ring shape connecting part is connected fixedly between the ring shape component and the sleeved ring; one side of the ring shape connecting part facing the impeller is provided with an arc shape end surface matched with the shape of the impeller. The original connecting disk being connected with the middle shell is changed into the middle shell being connected with the sealing ring sleeve base; the connecting disk in a larger size is canceled, so as to avoid the product deforming. The convex sealing is changed into groove sealing, so that the oil return space of the product is enlarged; the screw pressing is changed into circlip pressing. The above mentioned measurements are convenient for assembly, and are easy to be adopted by the assembling line, and the product cost is lowered.
Description
Technical field
The utility model relates to the central rotor assembly structure of vehicle turbocharger, and it is convenient for assembly to relate to a kind of energy specifically, improves the sealability of product, and the dynamic performance, reliability that improves rotor be exhaust-driven turbo-charger central rotor device preferably.
Background technique
Present domestic vehicle turbocharger has obtained rapid raising at aspect of performance, can import substitutes, but reliability of products restricts the competition of itself and foreign brand name, more and more wider along with the increase of product yield and application area, the fault of pressurized machine oil leak, thrust bearing wearing and tearing is also more and more, wherein particularly evident on medium truck, heavy goods vehicle, passenger vehicle.The sealing configuration of turbosupercharger is to prevent that the lubricant oil in the middle case from entering the flow passage component of turbosupercharger, and the combustion gas that stops the air of gas compressor end and turbine end enters the lubricant reservoir of pressurized machine, and it is the important step that guarantees the turbosupercharger proper functioning.Especially automobile-used turbosupercharging is worked under the bigger condition of working conditions change scope, makes the axial force of pressurized machine be under the bigger fluctuations state, and the sealing that solves pressurized machine is difficult more.As shown in Figure 1, present exhaust-driven turbo-charger central rotor device generally comprises middle case 9, is installed in the impeller 2 of turbine shaft 10 ends, tie-plate 1, axle envelope 3, seal ring 4, oil baffle 5 and thrust housing 7 and thrust bearing 6, be provided with seal ring 8 between middle case 9 and the tie-plate 1, be provided with seal ring 4 between tie-plate 1 and the axle envelope 3, lubricant oil enters from middle case 9 filler openings, enter thrust bearing 6 along the straight oil duct in the middle case 9, finish to be thrown out of after lubricated on thrust bearing 6 two sides, the lubricant oil in the thrust housing 7 are thrown out of from fitting surface; Lubricant oil is most of to enter floating bearing through flowing to the return opening of middle case 9 after lubricated along oblique oil duct, discharge by self gravitation, this sealing configuration is bigger in automobile-used turbo charged working conditions change scope, when the axial force of pressurized machine is in bigger fluctuations state, still some lubricant oil enters the gas compressor zone by seal ring 8 and seal ring 4, cause the pressurized machine leakage of oil, sealing effect is undesirable.The thrust bearing of this structure holds selection structure and adopts the endoporus fuel feeding, and it is undesirable that oil film forms effect, easily causes bearing wear.
The model utility content
The purpose of this utility model is to provide a kind of good reliability, easy to assembly, good sealing effect, can effectively reduces the exhaust-driven turbo-charger central rotor device of lubricating oil leakage, and new structure is convenient to the employing of pressurized machine automatic assembly line.
In order to achieve the above object, the utility model is realized by the following technical solutions: exhaust-driven turbo-charger central rotor device, comprise middle case, thrust housing, thrust bearing, oil baffle, the axle envelope, described thrust housing is arranged on the turbine shaft, described thrust bearing is arranged on the thrust housing, the turbine shaft of described axle front cover end is provided with impeller, it is characterized in that: the middle case of described impeller one end has a chamber, be provided with the seal ring block set in the described chamber, described seal ring block set comprises an annular component that seals with chamber inner wall, with the collar that is arranged on the axle envelope motive sealing on the turbine shaft, described annular component, be fixedly connected with cyclic adapting piece between the collar, described cyclic adapting piece has and the corresponding curved end of impeller shape towards a side of impeller.
Below be the further improvement of the utility model to above technological scheme:
The cross section of described cyclic adapting piece is " eight " font, and described axle envelope is provided with annular recess, the described collar extend in the annular recess and with the annular recess motive sealing.
The inwall of described chamber is provided with annular groove, is provided with in the described annular groove to be used for limiting the circlip that the seal ring set seat is put, and described circlip is positioned at the side of seal ring block set near impeller.
Middle case in the described chamber is provided with step, described step is positioned at the side of seal ring block set away from impeller, described oil baffle is arranged on the step, described oil baffle and middle case, the sealing of seal ring block set, and described oil baffle, middle case, thrust bearing form the static seal chamber.
The periphery of described axle envelope is provided with annular trapezoidal groove, gets rid of oily wedge angle, described oil baffle has deep gouge, the inward flange of described deep gouge has the annular oil resistance platform that matches with trapezoidal groove, described deep gouge is provided with the retaining oil angle of turning-in, described oil resistance platform, trapezoidal groove, gets rid of oily wedge angle motive sealing.
Described thrust bearing is provided with fan-shaped oil film wedge face, and described oil film wedge face is provided with oilhole.
The periphery of the annular component of described seal ring block set is provided with groove, is provided with seal ring in the described groove, is provided with seal ring between described seal ring block set and the axle envelope.
Beneficial effect: the utility model adopts above technological scheme, and the advantage of being brought is as follows:
(1) changes original tie-plate and middle case connection into middle case and seal ring block set, cancelled the bigger tie-plate of external form, avoided the product distortion, change the groove sealing into by original raised seals, increased the oil return space of product, changed screw in compression into circlip and compress, above measure has made things convenient for assembling, be easy to the employing of automatic assembly line, reduced product cost.
(2) " mazy type " sealing configuration with the axle envelope changes bathtub construction into, increased machine oil choked flow passage, utilization motive sealing principle is strengthened the opposition under different vacuum suction effects when having strengthened dredge oil amount, increase simultaneously ramp structure is arranged, change the space distribution of machine oil, inclined-plane, the outside and oil baffle carry out special control to the operating mode of shoving, and have controlled direction of engine oil flow and the machine oil oil mass on leakage paths simultaneously and have distributed and boundary layer thickness.
(3) setting at oil resistance platform and the oily angle of retaining on the oil baffle is played the effect of choked flow and shunting to lubricant oil, forms an inner chamber with thrust bearing, middle case, and the nowed forming of restriction machine oil has improved the oil return ability, has strengthened the sealability of part.
(4) change the sealing of tie-plate axial compression the radial seal of into seal ring block set, add arc structure on the seal ring block set, pressure control structure with impeller wheel antiform becomes to cooperate forms guide channel with shaft seal structure, can control flowing of wheel counterpressure and lubricant oil effectively.
(5) original single labyrinth structure is changed into all system sealing, and adopt method dynamic, that static sealing combines, effectively controlled flowing of machine oil, played good result preventing that machine oil from leaking.Experimental observation and research by engine oil flow form under the barotropic state in different rotating speeds, negative pressure and chamber, the phenomenon of shoving that forms when preventing low speed starting, high speed brake and low-speed running, respond well, as well to have solved machine oil leakage is flowed to it and to be played good constraint.
(6) middle case has partly been done change at the oil pocket of gas compressor end and turbine end, has increased the oil return space, more helps oil return and heat insulation.
(7) thrust bearing has adopted increasing oil film wedge face area and thrust fit diameter, and means of fixation changes, and by the location, inclined-plane, compress and change the mode that location, hole and plane compress into, and has increased bearing thickness, has strengthened the thrust bearing loading capability of product.The thrust bearing and the oilhole that adopt the increasing of 4 oil film wedges to hold the face of pushing away send oil to form oil film, improve the axially loaded of rotor.
In sum, this structure pressurized machine assembly process is simple, cancelled the land part after improving structure, reduced product cost, whole design sealing effect is good, can effectively reduce the leakage of machine oil, improved the thrust bearing loading capability of product, the rotor dynamics characteristic is improved, and reliability gets a promotion, and has the vast market promotional value.
Below in conjunction with drawings and Examples the utility model is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of exhaust-driven turbo-charger central rotor device in the prior art;
Accompanying drawing 2 is structural representations of the utility model embodiment;
Accompanying drawing 3 is structural representations of middle case among the utility model embodiment;
Accompanying drawing 4 is structural representations of seal ring block set among the utility model embodiment;
Accompanying drawing 5 is structural representations of the utility model embodiment axis envelope;
Accompanying drawing 6 is the structural representation of thrust bearing among the utility model embodiment;
Accompanying drawing 7 is the structural representation of oil baffle among the utility model embodiment.
The title of each several part among the figure: 1-tie-plate, 2-impeller, 3-axle envelope, the 4-seal ring, 5-oil baffle, 6-thrust bearing, the 7-thrust housing, 8-seal ring, 9-middle case, the 10-turbine shaft, 11-seal ring block set, 12-circlip, the 13-deep gouge, 14-annular component, 141-groove, the 15-chamber, 16-cyclic adapting piece, 161-curved end, the 17-collar, 18-annular recess, 19-annular groove, the 20-step, 21-trapezoidal groove, 22-oil film wedge face, 23-oilhole, 24-keep off oily angle, 25-oil resistance platform, 26-gets rid of oily wedge angle, 30-static seal chamber
Embodiment
Embodiment, as Fig. 2, shown in Figure 3, exhaust-driven turbo-charger central rotor device, comprise middle case 9, thrust housing 7, thrust bearing 6, oil baffle 5, axle envelope 3, thrust housing 7 is arranged on the turbine shaft 10, thrust bearing 6 is arranged on the thrust housing 7, the turbine shaft 10 of axle envelope 3 one ends is provided with impeller 2, the middle case 9 of impeller 2 one ends has a chamber 15, be provided with seal ring block set 11 in the chamber 15, the inwall of chamber 15 is provided with annular groove 19, be provided with the circlip 12 that is used for limiting seal ring block set 11 positions in the annular groove 19, circlip 12 is positioned at the side of seal ring block set 11 near impeller 2, middle case 9 in the chamber 15 is provided with step 20, step 20 is positioned at the side of seal ring block set 11 away from impeller 2, oil baffle 5 is arranged on the step 20, oil baffle 5 and middle case 9,11 sealings of seal ring block set, oil baffle 5, middle case 9, thrust bearing 6 forms static seal chamber 30, be provided with seal ring 8 between seal ring block set 11 and the middle case 9, be provided with seal ring 4 between seal ring block set 11 and the axle envelope 3, compress by originally changing circlip into screw in compression, cancelled the bigger tie-plate part of external form, the distortion of having avoided product to occur easily, reduced product cost
As shown in Figure 4, seal ring block set 11 comprise one with the annular component 14 of chamber 15 inner wall sealings, with the collar 17 that is arranged on axle envelope 3 motive sealings on the turbine shaft 10, be provided with cyclic adapting piece 16 between annular component 14, the collar 17, cyclic adapting piece 16 has and the corresponding curved end 161 of impeller 2 shapes towards a side of impeller 2, the cross section of cyclic adapting piece 16 is " eight " font structure, cyclic adapting piece 16 is structure as a whole with the collar 17, annular component 14, and the periphery of the annular component 14 of seal ring block set 11 is provided with groove 141.
As shown in Figure 5, axle envelope 3 is provided with annular recess 18, the collar 17 extend in the annular recess 18 and with annular recess 18 motive sealings, the periphery of axle envelope 3 is provided with the trapezoidal groove 21 of annular, gets rid of oily wedge angle 26.
As shown in Figure 6, thrust bearing 6 is provided with 4 fan-shaped oil film wedge faces 22, and oil film wedge face 22 is provided with oilhole 23.
As shown in Figure 7, oil baffle 5 has deep gouge 13, and the inward flange of deep gouge 13 has the annular oil resistance platform 25 that matches with trapezoidal groove 21, and deep gouge 13 is provided with the retaining oil angle 24 of turning-in, oil resistance platform 25, trapezoidal groove 21, gets rid of oily wedge angle 26 motive sealings.
Claims (7)
1. exhaust-driven turbo-charger central rotor device, comprise middle case (9), thrust housing (7), thrust bearing (6), oil baffle (5), axle envelope (3), described thrust housing (7) is arranged on the turbine shaft (10), described thrust bearing (6) is arranged on the thrust housing (7), the turbine shaft (10) of described axle envelope (3) one ends is provided with impeller (2), it is characterized in that: the middle case (9) of described impeller (2) one ends has a chamber (15), be provided with seal ring block set (11) in the described chamber (15), described seal ring block set (11) comprises an annular component (14) with chamber (15) inner wall sealing, with the collar (17) that is arranged on axle envelope (3) motive sealing on the turbine shaft (10), described annular component (14), be set with cyclic adapting piece (16) between the collar (17), described cyclic adapting piece (16) has and the corresponding curved end of impeller (2) shape (161) towards a side of impeller (2).
2. exhaust-driven turbo-charger central rotor device according to claim 1, it is characterized in that: the cross section of described cyclic adapting piece (16) is " eight " font, described axle envelope (3) is provided with annular recess (18), the described collar (17) extend in the annular recess (18) and with annular recess (18) motive sealing.
3. exhaust-driven turbo-charger central rotor device according to claim 1 and 2, it is characterized in that: the inwall of described chamber (15) is provided with annular groove (19), be provided with the circlip (12) that is used for limiting seal ring block set (11) position in the described annular groove (19), described circlip (12) is positioned at the side of seal ring block set (11) near impeller (2).
4. exhaust-driven turbo-charger central rotor device according to claim 3, it is characterized in that: the middle case (9) in the described chamber (15) is provided with step (20), described step (20) is positioned at the side of seal ring block set (11) away from impeller (2), described oil baffle (5) is arranged on the step (20), described oil baffle (5) and middle case (9), seal ring block set (11) sealing, described oil baffle (5), middle case (9), thrust bearing (6) form static seal chamber (30).
5. exhaust-driven turbo-charger central rotor device according to claim 4, it is characterized in that: the periphery of described axle envelope (3) is provided with annular trapezoidal groove (21), gets rid of oily wedge angle (26), described oil baffle (5) has deep gouge (13), the inward flange of described deep gouge (13) has the annular oil resistance platform (25) that matches with trapezoidal groove (21), described deep gouge (13) is provided with the retaining oil angle (24) of turning-in, described oil resistance platform (25), trapezoidal groove (21), gets rid of oily wedge angle (26) motive sealing.
6. according to claim 4 or 5 described exhaust-driven turbo-charger central rotor devices, it is characterized in that: described thrust bearing (6) is provided with fan-shaped oil film wedge face (22), and described oil film wedge face (22) is provided with oilhole (23).
7. exhaust-driven turbo-charger central rotor device according to claim 6, it is characterized in that: the periphery of the annular component (14) of described seal ring block set (11) is provided with groove (141), be provided with seal ring (8) in the described groove (141), be provided with seal ring (4) between described seal ring block set (11) and the axle envelope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200235712U CN201050387Y (en) | 2007-06-18 | 2007-06-18 | Exhaust-driven turbo-charger central rotor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200235712U CN201050387Y (en) | 2007-06-18 | 2007-06-18 | Exhaust-driven turbo-charger central rotor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050387Y true CN201050387Y (en) | 2008-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200235712U Expired - Lifetime CN201050387Y (en) | 2007-06-18 | 2007-06-18 | Exhaust-driven turbo-charger central rotor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050387Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536431A (en) * | 2012-01-18 | 2012-07-04 | 山东富源动力设备有限公司 | Gasoline engine turbocharger |
| CN103375188A (en) * | 2012-04-13 | 2013-10-30 | 于强 | Precise sealing ring support frame of turbocharger |
| CN103534459A (en) * | 2011-06-06 | 2014-01-22 | 博格华纳公司 | Exhaust-gas turbocharger |
| CN103994092A (en) * | 2014-04-14 | 2014-08-20 | 中国北方发动机研究所(天津) | Centrifugal blade pump type sealing structure of turbine supercharger |
| CN106285923A (en) * | 2016-07-29 | 2017-01-04 | 中国北方发动机研究所(天津) | A kind of turbocharger seals gets rid of oil structure |
| CN108138646A (en) * | 2015-08-25 | 2018-06-08 | 伊顿智能动力有限公司 | For the high pressure rotor seal construction of booster |
| CN113107868A (en) * | 2021-05-19 | 2021-07-13 | 潍坊科技学院 | Composite material low-inertia centrifugal compressor impeller and matching installation device thereof |
-
2007
- 2007-06-18 CN CNU2007200235712U patent/CN201050387Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103534459A (en) * | 2011-06-06 | 2014-01-22 | 博格华纳公司 | Exhaust-gas turbocharger |
| CN102536431A (en) * | 2012-01-18 | 2012-07-04 | 山东富源动力设备有限公司 | Gasoline engine turbocharger |
| CN102536431B (en) * | 2012-01-18 | 2014-09-03 | 山东富源动力设备有限公司 | Gasoline engine turbocharger |
| CN103375188A (en) * | 2012-04-13 | 2013-10-30 | 于强 | Precise sealing ring support frame of turbocharger |
| CN103994092A (en) * | 2014-04-14 | 2014-08-20 | 中国北方发动机研究所(天津) | Centrifugal blade pump type sealing structure of turbine supercharger |
| CN108138646A (en) * | 2015-08-25 | 2018-06-08 | 伊顿智能动力有限公司 | For the high pressure rotor seal construction of booster |
| CN106285923A (en) * | 2016-07-29 | 2017-01-04 | 中国北方发动机研究所(天津) | A kind of turbocharger seals gets rid of oil structure |
| CN113107868A (en) * | 2021-05-19 | 2021-07-13 | 潍坊科技学院 | Composite material low-inertia centrifugal compressor impeller and matching installation device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070618 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |