CN209671017U - A kind of turbocharger pressure shell structure of low Hiss noise - Google Patents
A kind of turbocharger pressure shell structure of low Hiss noise Download PDFInfo
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- CN209671017U CN209671017U CN201920340675.9U CN201920340675U CN209671017U CN 209671017 U CN209671017 U CN 209671017U CN 201920340675 U CN201920340675 U CN 201920340675U CN 209671017 U CN209671017 U CN 209671017U
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- pressure shell
- main body
- turbocharger
- hiss noise
- import
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Abstract
The utility model relates to a kind of turbocharger pressure shell structures of low Hiss noise, including pressure shell main body and pressure shell import, being internally located between pressure shell import and impeller cavity for the pressure shell main body is coaxially vacantly provided with annular element, the annular element is connected by several supporting ribs on the upside of it with pressure shell main body, and a circle return flow line is formed between the outside of the annular element and the inner sidewall of pressure shell main body.The utility model can significantly reduce the turbocharger air inlet Hiss noise generated when engine suddenly accelerates, and without apparent increased costs.
Description
Technical field
The utility model relates to field of turbochargers, more particularly to a kind of turbocharger pressure shell of low Hiss noise
Structure.
Background technique
In the automotive industry, as the requirement of energy-saving and emission-reduction is increasingly stringenter, the engine for matching turbocharger is more next
It is more universal.With the propulsion of engine lightweight and miniaturization, people are more next to low engine speed torque and high-power requirement
It is higher, so that engine and turbocharger matching luck line become closer to turbo-charger surge line.
When engine suddenly accelerates, turbo charger speed moment is improved, and the import of turbocharger pressure shell can nearby generate
Significantly " hissing " Hiss noise, sound quality is poor, seriously affects car and multiplies the comfort for driving people.
The prior art is to solve booster induction noise, and generally use 2 kinds of modes: one is the booster air inlets before pressure shell
Wideband muffler, the obvious booster cost of which, and pressure front space is required bigger.Other end engine and booster
When matching, increases pressure shell and press the gap between impeller, this method can be substantially reduced engine performance.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of turbocharger pressure shell structure of low Hiss noise,
It can significantly reduce the turbocharger air inlet Hiss noise generated when engine suddenly accelerates, and without apparent increased costs.
The technical scheme adopted by the utility model to solve the technical problem is as follows: the turbine for providing a kind of low Hiss noise increases
Depressor pressure shell structure, including pressure shell main body and pressure shell import, the pressure shell main body are internally located at pressure shell import and impeller cavity
Between be coaxially vacantly provided with annular element, the annular element is connected by several supporting ribs on the upside of it with pressure shell main body,
A circle return flow line is formed between the outside of the annular element and the inner sidewall of pressure shell main body.
As a kind of supplement to technical solution described in the utility model, the return flow line close to impeller cavity one
End is provided with a circle arc groove.
Further, the annular element is provided with circular conical surface on one end inner sidewall of pressure shell import.
Further, the return flow line is provided with the guiding circular cone to match with circular conical surface close to one end of pressure shell import
Face.
The utility model has the advantages that the utility model relates to a kind of turbocharger pressure shell structures of low Hiss noise, using completely new
Structure increases return flow line and separates booster pressure shell inner cavity by annular element, when the big load of low discharge generates back gas
When stream, reflux gas can be flowed back by return flow line, avoided that air inlet gas is made to generate vortex, be can significantly reduce engine
The turbocharger air inlet Hiss noise generated when anxious acceleration, and without apparent increased costs.
Detailed description of the invention
Fig. 1 is the main structure figure of the utility model.
Diagram: 1, pressure shell main body；2, impeller cavity；3, pressure shell import；4, annular element；5, return flow line；6, arc groove；7,
Circular conical surface；8, supporting rib；9, it is oriented to circular conical surface.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
As shown in Figure 1, making an uproar the technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of low Hiss
The turbocharger pressure shell structure of sound, including pressure shell main body 1 and pressure shell import 3, the pressure shell main body 1 are internally located at pressure shell
Annular element 4 is coaxially vacantly provided between import 3 and impeller cavity 2, the annular element 4 passes through several supporting ribs on the upside of it
8 are connected with pressure shell main body 1, and a circle return flow line 5 is formed between the outside of the annular element 4 and the inner sidewall of pressure shell main body 1.
The return flow line 5 is provided with a circle arc groove 6 close to one end of impeller cavity 2, can flow back to entering
Air-flow in channel 5 is oriented to, and flows it up.
The annular element 4 is provided with circular conical surface 7, the return flow line 5 on one end inner sidewall of pressure shell import 3
The guiding circular conical surface 9 to match with circular conical surface 7 is provided with close to one end of pressure shell import 3, air-flow enters behind return flow line 5 up
It flows and is flowed out in the gap between circular conical surface 7 and guiding circular conical surface 9, be not in turbine.
The utility model uses completely new structure, increases return flow line and is separated in booster pressure shell by annular element
Chamber, when the big load of low discharge makes gas generate reflux, reflux gas can be flowed back by return flow line, avoid making air inlet
Gas generates vortex, can significantly reduce the turbocharger air inlet Hiss noise generated when engine suddenly accelerates, and not bright
Aobvious increased costs.
Claims (4)
1. a kind of turbocharger pressure shell structure of low Hiss noise, including pressure shell main body (1) and pressure shell import (3), feature
It is, being internally located between pressure shell import (3) and impeller cavity (2) for the pressure shell main body (1) is coaxially vacantly provided with annular
Part (4), the annular element (4) are connected by several supporting ribs (8) on the upside of it with pressure shell main body (1), the annular
Circle return flow line (5) is formed between the outside of part (4) and the inner sidewall of pressure shell main body (1).
2. the turbocharger pressure shell structure of low Hiss noise according to claim 1, it is characterised in that: the reflux
Channel (5) is provided with a circle arc groove (6) close to the one end of impeller cavity (2).
3. the turbocharger pressure shell structure of low Hiss noise according to claim 1, it is characterised in that: the annular
Part (4) is provided with circular conical surface (7) on one end inner sidewall of pressure shell import (3).
4. the turbocharger pressure shell structure of low Hiss noise according to claim 3, it is characterised in that: the reflux
Channel (5) is provided with the guiding circular conical surface (9) to match with circular conical surface (7) close to the one end of pressure shell import (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340675.9U CN209671017U (en) | 2019-03-18 | 2019-03-18 | A kind of turbocharger pressure shell structure of low Hiss noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920340675.9U CN209671017U (en) | 2019-03-18 | 2019-03-18 | A kind of turbocharger pressure shell structure of low Hiss noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671017U true CN209671017U (en) | 2019-11-22 |
Family
ID=68571878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920340675.9U Active CN209671017U (en) | 2019-03-18 | 2019-03-18 | A kind of turbocharger pressure shell structure of low Hiss noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115184018A (en) * | 2022-06-30 | 2022-10-14 | 重庆长安汽车股份有限公司 | Method for evaluating air suction noise of supercharger |
-
2019
- 2019-03-18 CN CN201920340675.9U patent/CN209671017U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115184018A (en) * | 2022-06-30 | 2022-10-14 | 重庆长安汽车股份有限公司 | Method for evaluating air suction noise of supercharger |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 433, xingciqi Road, Hangzhou Bay New District, Cixi City, Ningbo City, Zhejiang Province Patentee after: Ningbo Fengwo booster Technology Co.,Ltd. Address before: No. 433, xingciqi Road, Hangzhou Bay New District, Cixi City, Ningbo City, Zhejiang Province Patentee before: VOFON TURBO SYSTEMS (NINGBO) Co.,Ltd. |