CN203476409U - Turbocharger turbine box with airflow injection function - Google Patents
Turbocharger turbine box with airflow injection function Download PDFInfo
- Publication number
- CN203476409U CN203476409U CN201320561431.6U CN201320561431U CN203476409U CN 203476409 U CN203476409 U CN 203476409U CN 201320561431 U CN201320561431 U CN 201320561431U CN 203476409 U CN203476409 U CN 203476409U
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- turbine box
- waste gas
- turbocharger
- air
- injection function
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Abstract
The utility model discloses a turbocharger turbine box with an airflow injection function. The turbocharger turbine box comprises a turbine box body, an air-bleed hole used for exhausting waste gas is formed in the turbine box body, the inner wall of an air outlet of the air-bleed hole is provided with a chamfer used for accelerating exhausting of the waste gas exhaustion, and the flaring of the chamber faces outwards. The turbocharger turbine box has the advantages that the inner wall of the air outlet of the air-bleed hole is designed into the chamber with the flaring facing outwards, the injection function of airflow can be achieved conveniently, the flow rate of the passed waste gas when a blow-off valve is opened at a high speed is increased, unnecessary waste gas can be timely exhausted, and therefore the overspeed failure of a turbocharger when an engine operates at a high speed can be effectively prevented, the high-speed performance of the engine is met and work reliability of the turbocharger is guaranteed.
Description
Technical field
The utility model relates to a kind of turbosupercharger, especially relates to a kind of turbocharger turbine box with airflow injection function.
Background technique
Because the requirement of main engine factory's power performance, emission performance and economic performance when the low speed to motor is more and more higher, therefore just require turbosupercharger must there is good low-speed performance.At present, in order to improve the low-speed performance of turbosupercharger, conventionally the Flow area of turbine box is done smallerly.Yet the flow-rate ratio of the gas when high speed in the runner of turbine box is larger, can make turbosupercharger hypervelocity, and the vent hole of general turbine box is limited to physical dimension, the flow that can pass through is limited, therefore can cause having little time venting, thereby affects the high speed performance of motor.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of turbocharger turbine box with airflow injection function, and it can accelerate the discharge of waste gas effectively, to improve the high speed performance of motor.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of turbocharger turbine box with airflow injection function, comprise turbine box casing, in described turbine box casing, be provided with the vent hole for combustion gas, the inwall that it is characterized in that the air outlet of described vent hole has the chamfering of discharging for accelerating waste gas, described chamfering enlarging is outside, makes the edge of the air outlet of vent hole be horn-like.
The angle of described chamfering is 10 °～60 °.
Compared with prior art, the utility model has the advantage of: by the inwall of the air outlet of vent hole being designed to the outside chamfering of enlarging, can realize easily the ejection function of air-flow, increased the exhaust gas flow that venting valve passes through when high speed opening, guaranteed that unnecessary waste gas can discharge in time, thereby effectively prevented that motor turbosupercharger hypervelocity when high speed lost efficacy, met the high speed performance of motor and guaranteed the functional reliability of turbosupercharger.
Accompanying drawing explanation
Fig. 1 is the perspective view of existing turbosupercharger;
Fig. 2 is the schematic side view one of existing turbosupercharger;
Fig. 3 is the schematic side view two of existing turbosupercharger;
Fig. 4 is the perspective view (having removed venting valve) of the turbosupercharger of application turbine box of the present utility model;
Fig. 5 is the partial sectional view of the turbosupercharger of application turbine box of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
At present, common turbosupercharger as shown in Figure 1, Figure 2 and Figure 3, generally include the compressor casing 1, intermediate 2 and the turbine box 3 that link together, turbine shaft (not shown) is housed in intermediate 2, one end of turbine shaft is fixed with compressor impeller (not shown), compressor impeller is arranged in compressor casing 1, and the other end of turbine shaft has turbine (not shown), and turbine is arranged in turbine box 3, on compressor casing 1, be provided with air intlet and air outlet slit, on compressor casing 1, by air relief valve support (not shown), be mounted with bleed valve 41, air outlet slit place on compressor casing 1 is provided with valve screw 42, valve screw 42 is connected with bleed valve 41 by sebific duct 43, turbine box 3 comprises turbine box casing, on turbine box casing, be provided with exhaust gas inlet and waste gas outlet, in turbine box casing, be provided with the vent hole 33 for combustion gas, vent hole 33 is communicated with exhaust gas inlet and waste gas outlet respectively, there is venting valve 44 at the place, air outlet of vent hole 33, bleed valve 41 is controlled 44 actions of venting valve by adjusting sleeve 45 and interlock crank 46.The exhaust gas flow that the utility model passes through when high speed opening for increasing venting valve 44, guarantee that unnecessary waste gas can discharge in time, make the inwall of the air outlet of vent hole 33 there is the chamfering 34 of discharging for accelerating waste gas, chamfering 34 enlargings are outside, the edge designs that is about to the air outlet of vent hole 33 becomes horn-like, as shown in Figure 4 and Figure 5, the turbosupercharger valve 44 of exitting in high speed rotating is opened like this, the large quantity of exhaust gas that motor is discharged during by radial chamfering 34 Accelerating Removal be unlikely to cause turbosupercharger to lose efficacy because of hypervelocity.
At this, in specific implementation process, the angle beta of chamfering 34 can be designed to 10 °～60 °, as the angle beta of chamfering 34 being designed to 45 °.
The working procedure of applying the turbosupercharger of turbine box of the present utility model is: when low engine speed is rotated, the pressure at the air outlet slit place on compressor casing is lower than the pretightening force of bleed valve inner spring, and the adjusting sleeve being connected successively with bleed valve, interlock crank, venting valve do not move; When high engine speeds is rotated, a large amount of waste gas enters turbine box by the exhaust gas inlet on turbine box, the pressure at the air outlet slit place on compressor casing also raises with the increase of rotating speed simultaneously, when pressure is greater than the pretightening force of bleed valve inner spring, the pull bar of bleed valve promotes adjusting sleeve and interlock crank, interlock crank rotates and drives venting valve open, when the waste gas in turbine box passes through the air outlet of vent hole, because air outlet is designed to chamfering structure, therefore air-flow can spread, and waste gas is directly discharged from waste gas outlet.
Contrast existing turbosupercharger and the working procedure of applying the turbosupercharger of turbine box of the present utility model, in the time of high engine speeds rotation venting valve open, waste gas most of air-flow when there is no the vent hole of chamfering directly projects on venting valve interstitial row that bounce-back again returns by side out, and the speed of the discharge of waste gas is restricted and can not discharges quickly like this; In the time of venting valve open same angle, waste gas air-flow when having the vent hole of chamfering can spread, and a part of waste gas directly ejects, and remaining waste gas projects bounce-back on venting valve and returns to eject again.From comparative analysis, can find out, the vent hole with chamfering arranging in turbine box of the present utility model can be rapidly, waste gas is discharged and be unlikely to turbosupercharger hypervelocity timely.
Claims (2)
1. a turbocharger turbine box with airflow injection function, comprise turbine box casing, in described turbine box casing, be provided with the vent hole for combustion gas, the inwall that it is characterized in that the air outlet of described vent hole has the chamfering of discharging for accelerating waste gas, and described chamfering enlarging is outside.
2. a kind of turbocharger turbine box with airflow injection function according to claim 1, is characterized in that the angle of described chamfering is 10 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561431.6U CN203476409U (en) | 2013-09-11 | 2013-09-11 | Turbocharger turbine box with airflow injection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561431.6U CN203476409U (en) | 2013-09-11 | 2013-09-11 | Turbocharger turbine box with airflow injection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476409U true CN203476409U (en) | 2014-03-12 |
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ID=50224754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320561431.6U Expired - Lifetime CN203476409U (en) | 2013-09-11 | 2013-09-11 | Turbocharger turbine box with airflow injection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209622A (en) * | 2018-11-29 | 2019-01-15 | 湖南天雁机械有限责任公司 | Turbocharger with spill deflation valve |
| CN109236459A (en) * | 2018-11-29 | 2019-01-18 | 湖南天雁机械有限责任公司 | Turbocharger with convex deflation valve |
-
2013
- 2013-09-11 CN CN201320561431.6U patent/CN203476409U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209622A (en) * | 2018-11-29 | 2019-01-15 | 湖南天雁机械有限责任公司 | Turbocharger with spill deflation valve |
| CN109236459A (en) * | 2018-11-29 | 2019-01-18 | 湖南天雁机械有限责任公司 | Turbocharger with convex deflation valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315034 Zhejiang Province, Ningbo Jiangbei District Cicheng Town Chang Yang Road, No. 268 Patentee after: NINGBO WEIFU TIANLI TURBOCHARGING TECHNOLOGY CO.,LTD. Address before: 315000 Zhejiang Province, Ningbo Jiangbei District Haichuan Road 168 Lane No. 1 Patentee before: NINGBO WEIFU TIANLI TURBOCHARGING TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |