CN203939993U - A kind of seal arrangement of turbosupercharger - Google Patents
A kind of seal arrangement of turbosupercharger Download PDFInfo
- Publication number
- CN203939993U CN203939993U CN201420339217.0U CN201420339217U CN203939993U CN 203939993 U CN203939993 U CN 203939993U CN 201420339217 U CN201420339217 U CN 201420339217U CN 203939993 U CN203939993 U CN 203939993U
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- China
- Prior art keywords
- boss
- turbosupercharger
- end surface
- gap
- seal ring
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Abstract
The utility model provides a kind of seal arrangement of turbosupercharger, belongs to field of mechanical technique.It has solved the problems such as the seal arrangement sealing effect of existing turbosupercharger is poor.The turbosupercharger of the seal arrangement of this turbosupercharger comprises turbine casing, turbine shaft and the compression impellor being coaxially connected with turbine shaft, in turbine casing, fill bearing support, turbine shaft is arranged on the hydraulic bearing of bearing support inside, the two end part contact position of the collar of turbine shaft and bearing support is provided with seal ring, on seal ring, there is opening, the both sides of this opening are respectively upper-end surface and the lower end surface of seal ring, upper-end surface has boss one, lower end surface has the boss two fastening with boss one, on boss one, there is the step one that stretches to boss two inner sides, on boss two, there is the step two that stretches to boss one inner side.The utlity model has the advantage of good airproof performance.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of turbosupercharger, particularly a kind of seal arrangement of turbosupercharger.
Background technique
Along with the growth of auto output and the increase of high-performance low energy consumption engine demand, adopt the motor of turbosupercharger more and more, but the problem of its leakage oil in use is more and more appeared suddenly, in order to solve leakage problem, all designing seal arrangement near turbine and compressor impeller end, the effect of this seal arrangement is to prevent that the lubricant oil of bearing support inside from entering the flow passage component of pressurized machine, the prevention air of gas compressor and the combustion gas of turbine end enter the lubricant reservoir of pressurized machine, to ensure the normal work of pressurized machine.The general ring type sealing device that adopts in turbosupercharger at present, be characterized in the open elastic ring of several piston annulars to be arranged on respectively in the seal ring supporting annular groove of turbine end and gas compressor end, seal ring relies on its elastic force tensioner in the endoporus of bearing support or gas compressor back of the body dish.Rotating speed under turbocharger operation state is up to 40000～220000r/min, continuous operation under high-speed and high-temperature for a long time, and operating conditions is very severe, and too high temperature can make to seal oil film evaporating, wearing and tearing aggravation, running safety is on the hazard.
For the problem of above-mentioned existence, people have made various improvement to the seal arrangement of turbosupercharger, some has also applied for patent, for example, in Chinese patent literature data, disclose a kind of seal ring apparatus of turbosupercharger and applied for patent [application number: 200820174963.3; Notice of authorization number: CN201288823Y], it comprises seal ring body, on sealing ring body, has opening, two opposing end surfaces that the both sides of opening are seal ring body are respectively equipped with the stepped step cooperatively interacting on two relative end faces.
The seal ring apparatus of above-mentioned turbosupercharger is by changing the shape of rigid sealing ring interface position, common Zhi Kou gap is changed to step type gap, increase one or more radial seal counterfaces, further reduce the lubricant oil of revealing from seal ring opening, improve the leakage of oil probability of turbosupercharger.But the seal ring apparatus structure of this turbosupercharger is compact not, seal face easily cracks and the defect such as pore, the lubricant oil of revealing from seal ring opening, thus do not reach good sealability.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and a kind of seal arrangement of turbosupercharger of good airproof performance is provided.
The purpose of this utility model can realize by following technical proposal: a kind of seal arrangement of turbosupercharger, this turbosupercharger comprises turbine casing, turbine shaft and the compression impellor being coaxially connected with turbine shaft, in described turbine casing, fill bearing support, described turbine shaft is arranged on the hydraulic bearing of bearing support inside, the two end part contact position of the collar of described turbine shaft and bearing support is provided with seal ring, it is characterized in that, on described seal ring, there is opening, the both sides of this opening are respectively upper-end surface and the lower end surface of seal ring, described upper-end surface has boss one, described lower end surface has the boss two fastening with boss one, on described boss one, there is the step one that stretches to boss two inner sides, on described boss two, there is the step two that stretches to boss one inner side.
In the time that the pressure of intermediate internal lubrication oil is greater than the certain value of turbine end or gas compressor end pressure, lubricant oil enters from one end of the working clearance of seal ring, while passing through the labyrinth clearance forming between boss one, boss two, step one, step two, pressure has decayed to zero, to the other end outlet of working clearance, do not have the lubricant oil can seepage.
In the seal arrangement of above-mentioned a kind of turbosupercharger, described step one has the step three that stretches to boss two inside bottom places, and described step two has the step four that stretches to boss one inside bottom place.
In the seal arrangement of above-mentioned a kind of turbosupercharger, between described step three and step two, form a stagnant oil-gap one, described step one forms a stagnant oil-gap two with step four.
In the seal arrangement of above-mentioned a kind of turbosupercharger, described stagnant oil-gap one and the height of stagnant oil-gap two are 1.2mm to 1.8mm, and the width of stagnant oil-gap one and stagnant oil-gap two is 0.5mm to 0.8mm.
Compared with prior art, the seal ring of the seal arrangement of this turbosupercharger has more complicated labyrinth shape gap, makes better tightness.
Brief description of the drawings
Fig. 1 is the structural representation of the seal arrangement of this turbosupercharger.
Fig. 2 is the structural representation of the seal ring of the seal arrangement of this turbosupercharger.
In figure, 1, turbine casing; 2, turbine shaft; 3, compression impellor; 4, bearing support; 5, hydraulic bearing; 6, collar; 7, seal ring; 7a, upper-end surface; 7b, lower end surface; 8, boss one; 9, boss two; 10, step one; 11, step two; 12, step three; 13, step four; 14, stagnant oil-gap one; 15, stagnant oil-gap two.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the turbosupercharger of the seal arrangement of this turbosupercharger comprises turbine casing 1, turbine shaft 2 and the compression impellor 3 being coaxially connected with turbine shaft 2, in turbine casing 1, fill bearing support 4, turbine shaft 2 is arranged on the hydraulic bearing 5 of bearing support 4 inside, the collar 6 of turbine shaft 2 is provided with seal ring 7 with the two end part contact position of bearing support 4, on seal ring 7, there is opening, the both sides of this opening are respectively upper-end surface 7a and the lower end surface 7b of seal ring 7, upper-end surface 7a has boss 1, lower end surface 7b has the boss 29 fastening with boss 1, on boss 1, there is the step 1 that stretches to boss 29 inner sides, on boss 29, there is the step 2 11 that stretches to boss one 8 inner sides.
The time that enters labyrinth clearance stop for lubricant oil from one end of the working clearance of seal ring 7 is longer, step 1 has the step 3 12 that stretches to boss 29 inside bottom places, step 2 11 has the step 4 13 that stretches to boss one 8 inside bottom places, between step 3 12 and step 2 11, form a stagnant oil-gap 1, step 1 forms a stagnant oil-gap 2 15 with step 4 13, the height of stagnant oil-gap 1 and stagnant oil-gap 2 15 is 1.2mm to 1.8mm, and the width of stagnant oil-gap 1 and stagnant oil-gap 2 15 is 0.5mm to 0.8mm.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as turbine casing 1, turbine shaft 2, compression impellor 3, bearing support 4, hydraulic bearing 5, collar 6, seal ring 7, upper-end surface 7a, lower end surface 7b, boss 1, boss 29, step 1, step 2 11, step 3 12, step 4 13, stagnant oil-gap 1, stagnant oil-gap 2 15 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (4)
1. the seal arrangement of a turbosupercharger, this turbosupercharger comprises turbine casing (1), turbine shaft (2) and the compression impellor (3) being coaxially connected with turbine shaft (2), dress bearing support (4) in described turbine casing (1), described turbine shaft (2) is arranged on the inner hydraulic bearing (5) of bearing support (4), the collar (6) of described turbine shaft (2) is provided with seal ring (7) with the two end part contact position of bearing support (4), it is characterized in that, on described seal ring (7), there is opening, the both sides of this opening are respectively upper-end surface (7a) and lower end surface (7b) of seal ring (7), described upper-end surface (7a) has boss one (8), described lower end surface (7b) has the boss two (9) fastening with boss one (8), on described boss one (8), there is the step one (10) that stretches to boss two (9) inner sides, on described boss two (9), there is the step two (11) that stretches to boss one (8) inner side.
2. the seal arrangement of a kind of turbosupercharger according to claim 1, it is characterized in that, described step one (10) has the step three (12) that stretches to boss two (9) inside bottom places, and described step two (11) has the step four (13) that stretches to boss one (8) inside bottom place.
3. the seal arrangement of a kind of turbosupercharger according to claim 2, it is characterized in that, between described step three (12) and step two (11), form a stagnant oil-gap one (14), described step one (10) forms a stagnant oil-gap two (15) with step four (13).
4. the seal arrangement of a kind of turbosupercharger according to claim 3, it is characterized in that, described stagnant oil-gap one (14) and the height of stagnant oil-gap two (15) are 1.2mm to 1.8mm, and the width of stagnant oil-gap one (14) and stagnant oil-gap two (15) is 0.5mm to 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339217.0U CN203939993U (en) | 2014-06-24 | 2014-06-24 | A kind of seal arrangement of turbosupercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339217.0U CN203939993U (en) | 2014-06-24 | 2014-06-24 | A kind of seal arrangement of turbosupercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939993U true CN203939993U (en) | 2014-11-12 |
Family
ID=51859307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339217.0U Expired - Fee Related CN203939993U (en) | 2014-06-24 | 2014-06-24 | A kind of seal arrangement of turbosupercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863827A (en) * | 2016-06-08 | 2016-08-17 | 湖南天雁机械有限责任公司 | Sealing structure and method for pressure end and vortex end of ball bearing turbocharger |
-
2014
- 2014-06-24 CN CN201420339217.0U patent/CN203939993U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863827A (en) * | 2016-06-08 | 2016-08-17 | 湖南天雁机械有限责任公司 | Sealing structure and method for pressure end and vortex end of ball bearing turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20180624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |