CN217814132U - Supercharger with vane diffuser and pneumatic flow guide sleeve structure - Google Patents
Supercharger with vane diffuser and pneumatic flow guide sleeve structure Download PDFInfo
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- CN217814132U CN217814132U CN202221254757.XU CN202221254757U CN217814132U CN 217814132 U CN217814132 U CN 217814132U CN 202221254757 U CN202221254757 U CN 202221254757U CN 217814132 U CN217814132 U CN 217814132U
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- diffuser
- guide sleeve
- flow guide
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- supercharger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model provides a booster with leaf diffuser and pneumatic water conservancy diversion cover structure, relates to booster technical field, including the compressor casing, installs the diffuser on the compressor casing, is equipped with the water conservancy diversion cover in the diffuser, forms airflow channel between the inner wall of diffuser and the outer wall of water conservancy diversion cover, and the coaxial arc guiding gutter of having seted up on the inner wall of diffuser. The utility model provides a diffuser among the conventional art though promote booster pressure ratio and efficiency, nevertheless can cause the flow scope to narrow down, can't satisfy the work demand of the whole rotational speed scope of engine, the problem that low-speed and high-speed can not compromise.
Description
Technical Field
The utility model relates to a booster technical field, concretely relates to booster with leaf diffuser and pneumatic water conservancy diversion cover structure.
Background
In recent years, the supercharging rate of engines, particularly diesel engines, has been greatly improved, but the turbocharger has been 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 comprises a compressor shell, wherein a compressor impeller which does work on gas is coaxially arranged in an inner hole of the compressor shell, a diffuser structure is arranged at an outlet of the compressor impeller, and a part of the diffuser structure corresponding to the compressor shell forms a vaneless annular diffuser. 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 mainly shows 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 diffuser in the traditional technology 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 can not be met, and the low speed and the high speed can not 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 problem, the utility model provides a following technical scheme:
a supercharger with a vane diffuser and a pneumatic flow guide sleeve structure comprises a compressor shell, wherein the compressor shell is provided with a diffuser, a flow guide sleeve is arranged in the diffuser, an airflow channel is formed between the inner wall of the diffuser and the outer wall of the flow guide sleeve, and the inner wall of the diffuser is coaxially provided with an arc-shaped flow guide groove;
a guide vane is also arranged in the airflow channel;
the guide vanes are arranged in a plurality and surround the outer wall of the guide sleeve;
the guide vanes are strip-shaped guide protrusions, and the extension directions of the strip-shaped guide protrusions are parallel to the axis direction of the guide sleeve.
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 area, between the adjacent strip-shaped flow guide protruding parts, of the outer wall of the flow guide sleeve forms an expansion groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the guide sleeve and the diffuser are formed in an interference fit mode, an airflow channel is formed between the diffuser and the guide sleeve, the inner wall of the diffuser is designed in a cambered surface mode, the guide sleeve is arranged in the airflow channel, the flow expanding grooves are uniformly distributed on the guide sleeve, and redundant gas of the compressor shell returns to an inlet through an air passage formed by the flow expanding grooves, so that the airflow is guided; the diffuser and the inner surface of the compressor shell are assembled together in an interference fit manner, so that the structure is simpler, a connecting piece is omitted, and the assembly is simple; the manufacturability is good, the processing is convenient, the cost is low;
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, and improving the reliability of the supercharger and the engine after the structure is simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in 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 structural view of the flow guide sleeve of the present invention;
fig. 3 is a schematic structural view of the diffuser of the present invention.
In fig. 1: 1-a compressor casing; 2-a diffuser; 3-a flow guide sleeve; 4-strip-shaped flow guide protruding parts; 5-a horn mouth; 6-limiting convex part; 7-arc diversion trench; 8-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 the vane diffuser and the pneumatic flow guide sleeve structure comprises a compressor casing 1, a diffuser 2 is installed on the compressor casing 1, a flow guide sleeve 3 is arranged in the diffuser 2, an air flow channel is formed between the inner wall of the diffuser 2 and the outer wall of the flow guide sleeve 3, and an arc-shaped flow guide groove 7 is coaxially formed in the inner wall of the diffuser 2.
The airflow channel is also provided with guide vanes.
The guide vanes are provided with a plurality of guide vanes and are arranged on the outer wall of the guide sleeve 3 in a surrounding way.
The guide vanes are strip-shaped guide protrusions 4, and the extending direction of the strip-shaped guide protrusions 4 is parallel to the axis direction of the guide sleeve 3.
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 casing 1.
The guide sleeve 3 is in interference fit with the diffuser 2.
The area of the outer wall of the diversion sleeve 3 between the adjacent strip-shaped diversion convex parts 4 forms a diversion trench 8.
The length of the blade of the flow guide sleeve 3 is 24mm, the height thereof is 2.5mm, and the width of the rubbing groove 8 is 3.92mm.
The working principle of the device is as follows:
the flow guide sleeve 3 and the diffuser 2 are formed in an interference fit mode, an airflow channel is formed between the diffuser 2 and the flow guide sleeve 3, the inner wall of the diffuser 2 is designed in an arc surface mode, the flow guide sleeve 3 is arranged in the airflow channel, the flow expansion grooves 8 are uniformly distributed in the flow guide sleeve 3, and redundant gas of the compressor shell 1 returns to an inlet through an air channel formed by the flow expansion grooves 8, so that the flow range of the compressor is widened; the arc-shaped diversion trench 7 on the inner wall of the airflow channel can form prewhirl to the airflow and guide the airflow to form a downward flow direction, as shown in fig. 1, the diffuser 2 and the inner surface of the compressor shell 1 are assembled together in an interference fit mode, the structure is simpler, a connecting piece is omitted, and the assembly is simple.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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 substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. The utility model provides a booster with leaf diffuser and pneumatic water conservancy diversion cover structure which characterized in that: the compressor comprises a compressor shell (1), wherein a diffuser (2) is installed on the compressor shell (1), a flow guide sleeve (3) is arranged in the diffuser (2), an air flow channel is formed between the inner wall of the diffuser (2) and the outer wall of the flow guide sleeve (3), and an arc-shaped flow guide groove (7) is coaxially formed in the inner wall of the diffuser (2);
a plurality of guide vanes are arranged in the airflow channel and surround the outer wall of the guide sleeve (3);
the guide vanes are strip-shaped guide protrusions (4), and the extending direction of the strip-shaped guide protrusions (4) is parallel to the axis direction of the guide sleeve (3).
2. The supercharger with a vane diffuser and pneumatic flow guide sleeve structure according to claim 1, wherein: 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 pneumatic flow guide sleeve 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 pneumatic flow guide sleeve 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 with a vane diffuser and pneumatic flow guide sleeve structure according to claim 1, wherein: the guide sleeve (3) is in interference fit with the diffuser (2).
6. The supercharger of claim 1, wherein the vane diffuser and the pneumatic flow guide sleeve are configured to: the outer wall of the flow guide sleeve (3) is positioned in the area between the adjacent strip-shaped flow guide protruding parts (4) to form a flow expansion groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221254757.XU CN217814132U (en) | 2022-05-24 | 2022-05-24 | Supercharger with vane diffuser and pneumatic flow guide sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221254757.XU CN217814132U (en) | 2022-05-24 | 2022-05-24 | Supercharger with vane diffuser and pneumatic flow guide sleeve structure |
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| Publication Number | Publication Date |
|---|---|
| CN217814132U true CN217814132U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221254757.XU Active CN217814132U (en) | 2022-05-24 | 2022-05-24 | Supercharger with vane diffuser and pneumatic flow guide sleeve structure |
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| CN (1) | CN217814132U (en) |
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
- 2022-05-24 CN CN202221254757.XU patent/CN217814132U/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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