CN204646327U - A kind of variable nozzle turbine blade - Google Patents
A kind of variable nozzle turbine blade Download PDFInfo
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- CN204646327U CN204646327U CN201520319356.1U CN201520319356U CN204646327U CN 204646327 U CN204646327 U CN 204646327U CN 201520319356 U CN201520319356 U CN 201520319356U CN 204646327 U CN204646327 U CN 204646327U
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- turbine
- nozzle
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- blade
- mounting disc
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Abstract
The utility model relates to a kind of variable nozzle turbine blade, it comprises turbine (1), mounting disc (2), blades of adjustable nozzle (3), turbine box (4), driver plate (5) and finger (6), driver plate (5) is fixed by finger (6) and mounting disc (2), turbine box (4) is connected with driver plate (5), turbine (1) is arranged in turbine box (4), and blades of adjustable nozzle (3) is connected with mounting disc (2).Blades of adjustable nozzle (3) is the one in hunchbacked open form nozzle vane and wedge shape nozzle vane.Blade synchronization of the present utility model, when each contented gyration center rotates, remains an approximately parallel passage, with less loss, air-flow is imported turbine, turbine efficiency can be made to be significantly improved between blade.
Description
Technical field
The utility model belongs to engine turbine technical field, is specifically related to a kind of variable nozzle turbine blade.
Background technique
Day by day harsh due to Abgasgesetz, Conventional turbochargers can not meet motor whole process coupling from low speed to high speed because of it, and what can not adapt to vehicular engine joins confidential asking.Look after high speed then low speed confession unsaturated vapor, cause engine performance deterioration; Looked after low speed, then during high speed, pressurized machine certainly will exceed the speed limit, and because boost pressure is too high, causes engine flare pressure to exceed standard, due to the increase of engine pumping work, will cause engine performance deterioration.Although the turbosupercharger of nearly more than ten years band bypass bleed valve widely uses, the low-speed performance of motor is had obvious improvement, owing to being bled off by portion when high engine speeds, the loss of venting capacity makes the high speed performance of motor still undesirable.
In early days, what adjustable nozzle generally adopted is " symmetric wedge " or other forms " tall and thin " type blade, and the problem that the blade of this kind of form comes out is:
gradient less than normal, and
gradient (see Fig. 3) bigger than normal; These two kinds of factors cause motor when low speed (
hour),
angle substantial deviation optimum value, causes the also substantial deviation ideal orientation of the gas velocity c1 before turbine inlet, make it exhaust back pressure and obviously raise, and boost pressure cannot promote thereupon, is just difficult to obtain desirable low engine speed performance.
Summary of the invention
The purpose of this utility model is the problems referred to above brought to solve existing " symmetric wedge " and " tall and thin " type blade, and proposes a kind of variable nozzle turbine blade.This blade synchronization, when each contented gyration center rotates, remains an approximately parallel passage, with less loss, air-flow is imported turbine, turbine efficiency can be made to be significantly improved between blade.
The technical solution adopted in the utility model: a kind of variable nozzle turbine blade, it comprises turbine 1, mounting disc 2, blades of adjustable nozzle 3, turbine box 4, driver plate 5 and finger 6, driver plate 5 is fixed by finger 6 and mounting disc 2, turbine box 4 is connected with driver plate 5, turbine 1 is arranged in turbine box 4, and blades of adjustable nozzle 3 is connected with mounting disc 2.
Further, blades of adjustable nozzle 3 is the one in hunchbacked open form nozzle vane and wedge shape nozzle vane.
The utility model compared with prior art its beneficial effect is: the utility model is the rate of change of flow area rate of change and the blade exit setting angle utilizing the blocking action of blade and special bow-shaped leaves shape to realize ideal, thus improves the low-speed performance of motor; Blade synchronization of the present utility model, when each contented gyration center rotates, remains an approximately parallel passage, with less loss, air-flow is imported turbine, turbine efficiency can be made to be significantly improved between blade.
Accompanying drawing explanation
Fig. 1 is variable nozzle turbine schematic diagram;
Fig. 2 is wedge shape blades of adjustable nozzle assembling schematic diagram;
Fig. 3 is hunchbacked type blades of adjustable nozzle assembling schematic diagram.
Embodiment
A kind of variable nozzle turbine blade, it comprises turbine 1, mounting disc 2, blades of adjustable nozzle 3, turbine box 4, driver plate 5 and finger 6, and driver plate 5 is fixed by finger 6 and mounting disc 2, and turbine box 4 is connected with driver plate 5, turbine 1 is arranged in turbine box 4, and blades of adjustable nozzle 3 is connected with mounting disc 2.Blades of adjustable nozzle 3 is the one in hunchbacked open form nozzle vane and wedge shape nozzle vane.
Claims (2)
1. a variable nozzle turbine blade, it comprises turbine (1), mounting disc (2), blades of adjustable nozzle (3), turbine box (4), driver plate (5) and finger (6), it is characterized in that: driver plate (5) is fixed by finger (6) and mounting disc (2), turbine box (4) is connected with driver plate (5), turbine (1) is arranged in turbine box (4), and blades of adjustable nozzle (3) is connected with mounting disc (2).
2. a kind of variable nozzle turbine blade according to claim 1, is characterized in that: blades of adjustable nozzle (3) is the one in hunchbacked open form nozzle vane and wedge shape nozzle vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319356.1U CN204646327U (en) | 2015-05-18 | 2015-05-18 | A kind of variable nozzle turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319356.1U CN204646327U (en) | 2015-05-18 | 2015-05-18 | A kind of variable nozzle turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646327U true CN204646327U (en) | 2015-09-16 |
Family
ID=54099091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520319356.1U Active CN204646327U (en) | 2015-05-18 | 2015-05-18 | A kind of variable nozzle turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019951A (en) * | 2015-05-18 | 2015-11-04 | 大同北方天力增压技术有限公司 | Design method for adjustable spray nozzle blade |
| CN105422782A (en) * | 2015-12-11 | 2016-03-23 | 哈尔滨工程大学 | Turbine blade adjustable type hydraulic coupler |
-
2015
- 2015-05-18 CN CN201520319356.1U patent/CN204646327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019951A (en) * | 2015-05-18 | 2015-11-04 | 大同北方天力增压技术有限公司 | Design method for adjustable spray nozzle blade |
| CN105422782A (en) * | 2015-12-11 | 2016-03-23 | 哈尔滨工程大学 | Turbine blade adjustable type hydraulic coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180502 Address after: 300000 Yongfeng Road 12, Tianjin high-end equipment manufacturing industrial park, Beichen District, Tianjin. Patentee after: Tianjin North force booster Technology Co. Ltd. Address before: 037036 mailbox No. 22, Datong, Shanxi Patentee before: Datong North Tianli Turbocharging Technology Co.,Ltd. |