CN216742188U - Supercharger with vane diffuser and pneumatic guide vane structure - Google Patents
Supercharger with vane diffuser and pneumatic guide vane structure Download PDFInfo
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- CN216742188U CN216742188U CN202221183344.7U CN202221183344U CN216742188U CN 216742188 U CN216742188 U CN 216742188U CN 202221183344 U CN202221183344 U CN 202221183344U CN 216742188 U CN216742188 U CN 216742188U
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- vane
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Abstract
A supercharger with a vane diffuser and a pneumatic guide vane structure relates to the technical field of superchargers and comprises a compressor shell, wherein the compressor shell is provided with the diffuser, a guide sleeve is arranged in the diffuser, and guide vanes are arranged between the inner wall of the diffuser and the outer wall of the guide sleeve. The utility model solves the problems that although the pressure ratio and the efficiency of the supercharger are improved by the diffuser in the traditional technology, the flow range is narrowed, the working requirement of the whole rotating speed range of an engine cannot be met, and low speed and high speed cannot be taken into consideration.
Description
Technical Field
The utility model relates to the technical field of superchargers, in particular to a supercharger with a vane diffuser and a pneumatic guide vane structure.
Background
In recent years, the supercharging rate of engines, particularly diesel engines, has been greatly improved, but the turbocharger is required to have a more compact structure due to the restrictions on the structure and matching characteristics of the turbocharger. A bearing assembly and a diffuser are installed at one end of a central shaft of the turbocharger, and an impeller cover and a pressure end bearing shell are connected to the diffuser. The performance curve of the compressor can be approximately translated left and right by using the diffuser, so that the working efficiency of the turbocharger is influenced; meanwhile, the diffuser is connected with the impeller cover, and the structure of the diffuser influences the anti-surge vibration effect of the impeller cover.
The prior art discloses a patent of CN206845549U, which includes a compressor casing, a compressor impeller coaxially mounted in an inner hole of the compressor casing and applying work to gas, a diffuser structure provided at an outlet of the compressor impeller, and a vaneless annular diffuser formed at a portion of the diffuser structure corresponding to the compressor casing. The scheme solves the problem of oil leakage at the pressure end of the turbocharger, and improves the utilization rate of lubricating oil.
The prior device gradually exposes the defects of the technology along with the use, and is mainly expressed in the following aspects:
first, although the existing diffuser improves the pressure ratio and efficiency of the supercharger, the flow range is narrowed, the working requirement of the whole rotating speed range of the engine cannot be met, and low speed and high speed cannot be both considered.
Secondly, the existing diffuser is connected with the compressor shell by a connecting piece, the installation procedure is complex, the structure is complex, and the failure rate is high.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model solves the problems that although the pressure ratio and the efficiency of the supercharger are improved by the diffuser in the traditional technology, the flow range is narrowed, the working requirement of the whole rotating speed range of the engine cannot be met, and both low speed and high speed cannot be considered; and the existing diffuser is connected with the compressor shell by a connecting piece, so that the installation process is complicated.
In order to solve the above problems, the present invention provides the following technical solutions:
a supercharger with a vane diffuser and a pneumatic guide vane structure comprises a compressor shell, wherein the compressor shell is provided with the diffuser, a guide sleeve is arranged in the diffuser, and guide vanes are arranged between the inner wall of the diffuser and the outer wall of the guide sleeve;
the guide vanes are provided with a plurality of guide vanes and are arranged on the outer wall of the guide sleeve in an enclosing manner;
the guide vanes are arc vanes, and the rotating directions of a plurality of arc vanes are the same;
the outer wall of the flow guide sleeve is positioned in the area between two adjacent arc-shaped blades to form a flow expansion groove.
As an optimized scheme, one end of the diffuser close to the outlet is provided with a flared opening.
As an optimized scheme, the inner cavity of the diffuser is further provided with a limiting bulge part for limiting the flow guide sleeve.
Preferably, the outer wall of the diffuser is in interference fit with the inner wall of the compressor casing.
As an optimized scheme, the guide sleeve is in interference fit with the diffuser.
As an optimized scheme, the length of the guide vane is 24mm, the radian is R80mm, the thickness is 0.8mm, and the height is 2.5 mm.
Compared with the prior art, the utility model has the beneficial effects that:
the guide sleeve and the diffuser are formed in interference fit, a flow expansion groove is formed between the diffuser and the guide sleeve, redundant air entering the compressor shell returns to the inlet of the compressor through the flow expansion groove, and guide blades on the guide sleeve guide the flow direction of the air flow to enable the air flow to rotate; the diffuser and the inner surface of the compressor shell are assembled together in an interference fit manner, so that the structure is simpler, and a connecting piece is omitted;
the air compressor of the supercharger has the advantages of further widening the air inlet flow range, improving the air inlet efficiency, being beneficial to improving the power performance and the economic performance of the engine, simplifying the structure and improving the reliability of the supercharger and the engine.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a diffuser according to the present invention;
fig. 3 is a schematic structural view of the flow guide sleeve of the present invention.
In the figure: 1-a compressor casing; 2-a diffuser; 3-a flow guide sleeve; 4-guide vanes; 5-a horn mouth; 6-limiting convex part; 7-rubbing groove.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 3, the supercharger with a vane diffuser and pneumatic guide vane structure comprises a compressor casing 1, a diffuser 2 is installed on the compressor casing 1, a guide sleeve 3 is arranged in the diffuser 2, and a guide vane 4 is arranged between the inner wall of the diffuser 2 and the outer wall of the guide sleeve 3;
the guide vanes 4 are provided with a plurality of vanes and are arranged on the outer wall of the guide sleeve 3 in a surrounding manner;
the guide vanes 4 are arc vanes, and the rotating directions of a plurality of arc vanes are the same;
the area of the outer wall of the guide sleeve 3 between two adjacent arc-shaped blades forms an expansion groove 7.
One end of the diffuser 2 close to the outlet is provided with a flared opening 5.
The inner cavity of the diffuser 2 is also provided with a limiting bulge part 6 for limiting the flow guide sleeve 3.
The outer wall of the diffuser 2 is in interference fit with the inner wall of the compressor shell 1.
The guide sleeve 3 is in interference fit with the diffuser 2.
The length of the guide vane 4 is 24mm, the radian is R80mm, the thickness is 0.8mm, and the height is 2.5 mm.
The working principle of the device is as follows:
the guide sleeve 3 and the diffuser 2 are formed by interference fit, a flow expansion groove 7 is formed between the diffuser 2 and the guide sleeve 3, redundant air entering the compressor shell 1 returns to the inlet of the compressor through the flow expansion groove 7, and guide blades 4 on the guide sleeve 3 guide the flow direction of the air flow to enable the air flow to rotate; the diffuser 2 and the inner surface of the compressor shell 1 are assembled together in an interference fit mode.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (6)
1. The utility model provides a booster with leaf diffuser and pneumatic guide vane structure which characterized in that: the compressor comprises a compressor shell (1), wherein a diffuser (2) is installed on the compressor shell (1), a guide sleeve (3) is arranged in the diffuser (2), and guide blades (4) are arranged between the inner wall of the diffuser (2) and the outer wall of the guide sleeve (3);
the guide vanes (4) are provided with a plurality of vanes and are arranged on the outer wall of the guide sleeve (3) in an enclosing manner;
the guide vanes (4) are arc-shaped vanes, and the rotating directions of a plurality of arc-shaped vanes are the same;
the outer wall of the flow guide sleeve (3) is positioned in the area between two adjacent arc-shaped blades to form an expansion groove (7).
2. The supercharger of claim 1, wherein the vane diffuser and the air vane structure are configured to: one end of the diffuser (2) close to the outlet is provided with a horn-shaped opening (5).
3. The supercharger of claim 1, wherein the vane diffuser and the air vane structure are configured to: the inner cavity of the diffuser (2) is also provided with a limiting bulge part (6) for limiting the flow guide sleeve (3).
4. The supercharger of claim 1, wherein the vane diffuser and the air vane structure are configured to: the outer wall of the diffuser (2) is in interference fit with the inner wall of the compressor casing (1).
5. The supercharger of claim 1, wherein the vane diffuser and the air vane structure are configured to: the guide sleeve (3) is in interference fit with the diffuser (2).
6. The supercharger of claim 1, wherein the vane diffuser and the air vane structure are configured to: the length of the guide vane (4) is 24mm, the radian is R80mm, the thickness is 0.8mm, and the height is 2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221183344.7U CN216742188U (en) | 2022-05-18 | 2022-05-18 | Supercharger with vane diffuser and pneumatic guide vane structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221183344.7U CN216742188U (en) | 2022-05-18 | 2022-05-18 | Supercharger with vane diffuser and pneumatic guide vane structure |
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| Publication Number | Publication Date |
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| CN216742188U true CN216742188U (en) | 2022-06-14 |
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| CN202221183344.7U Active CN216742188U (en) | 2022-05-18 | 2022-05-18 | Supercharger with vane diffuser and pneumatic guide vane structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557331A (en) * | 2023-07-04 | 2023-08-08 | 康跃科技(山东)有限公司 | Compressor and supercharger |
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2022
- 2022-05-18 CN CN202221183344.7U patent/CN216742188U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557331A (en) * | 2023-07-04 | 2023-08-08 | 康跃科技(山东)有限公司 | Compressor and supercharger |
| CN116557331B (en) * | 2023-07-04 | 2023-09-22 | 康跃科技(山东)有限公司 | Compressor and supercharger |
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