CN218177553U - Compressor shell assembly of turbocharger - Google Patents
Compressor shell assembly of turbocharger Download PDFInfo
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- CN218177553U CN218177553U CN202222294827.0U CN202222294827U CN218177553U CN 218177553 U CN218177553 U CN 218177553U CN 202222294827 U CN202222294827 U CN 202222294827U CN 218177553 U CN218177553 U CN 218177553U
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- flow
- air inlet
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- 230000002787 reinforcement Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a compressor shell component of a turbocharger, wherein one end of a shell of the shell component is provided with a cylindrical air inlet channel; the inner side of the shell is provided with a flow guide cover, the flow guide cover is provided with a flow guide cover inner wall, an air inlet cavity is enclosed by the flow guide cover inner wall, and the flow guide cover inner wall is of an arc structure protruding towards the air inlet cavity and marked as a section a; the air outlet side of the air guide sleeve is also provided with an air guide sleeve groove, and the air guide sleeve groove is connected with the inner wall of the air guide sleeve through an air guide sleeve connecting section; the air guide sleeve connecting section comprises two arc sections which are respectively marked as a section b and a section c, and the section b is connected with the section a; the air guide sleeve groove comprises a d section, an e section and an f section, the d section and the f section are straight line sections, the e section is an arc section, the d section and the f section are respectively located on two sides of the e section, and the d section is connected with the c section. The structure of the guide cover can stabilize the air flow at the inlet of the compressor, and no pressure fluctuation occurs when the air flow is transmitted to the inside of the compressor, so that the noise at the inlet of the compressor is reduced.
Description
Technical Field
The utility model relates to a turbo charger technical field especially relates to a turbo charger compressor shell subassembly.
Background
The turbocharging technology is a key technology for realizing energy conservation and emission reduction of the internal combustion engine and meeting increasingly strict emission regulation requirements.
The turbocharger is mainly composed of a compressor part, a turbine part and an intermediate part. When the engine works, the exhausted waste gas drives a turbine in the turbine, the turbine drives a compressor impeller on the same shaft to enable the impeller to rotate at a high speed, air entering the compressor shell through an air inlet of the compressor shell is compressed, the compressed air enters an engine cylinder through a flow passage of the compressor shell, the air inlet pressure is improved, the air quantity entering the engine cylinder is relatively increased, and fuel oil in the injection cylinder is combusted more fully.
Supercharged internal combustion engines using turbocharging technology are moving towards high supercharging. Due to the rising of the pressure ratio, the flow inside the gas compressor is changed from subsonic velocity to transonic velocity, so that the stable working range of the gas compressor is narrowed, the efficiency is reduced, and the requirement of an internal combustion engine on high supercharging can not be met. Particularly, the internal combustion engine is easy to generate surging and blocking phenomena under the conditions of low working condition and severe cold climate, so that the stable working range of the air compressor needs to be enlarged.
In the prior art, in order to prevent surging and blocking phenomena, a self-circulation groove is arranged on a gas compressor. However, the compressors currently used are relatively noisy. The high-frequency sound is mainly concentrated at the air inlet of the air compressor, belongs to inlet noise and belongs to synchronous pressure pulsation noise. Because the air flow at the inlet of the compressor is unstable, when the air flow is transmitted forwards, the noise is increased when the flow is reduced, and pressure fluctuation can occur. The frequency of the synchronous pressure pulsation noise is 1000-4000 Hz, the frequency audible by human is 20-20000 Hz, wherein 1000-4000 Hz is most harsh and is a high-frequency whistle.
Disclosure of Invention
In order to overcome the defects, the utility model provides a technical problem who solves provides a turbo charger compressor shell subassembly, can effectively reduce the noise of compressor air inlet department.
In order to solve the technical problem, the utility model discloses a turbocharger compressor shell assembly, which comprises a shell, wherein one end of the shell is provided with a cylindrical air inlet channel; the inner side of the shell is provided with a flow guide cover, the flow guide cover is provided with a flow guide cover inner wall, an air inlet cavity is defined by the flow guide cover inner wall, and the flow guide cover inner wall is in an arc shape protruding towards the air inlet cavity and marked as an a section; a guide cover groove is further formed in the air outlet side of the guide cover, and the guide cover groove is connected with the inner wall of the guide cover through a guide cover connecting section; the air guide sleeve connecting section comprises two arc sections which are respectively marked as a section b and a section c, and the section b is connected with the section a; the air guide sleeve groove comprises a d section, an e section and an f section, the d section and the f section are straight line sections, the e section is an arc section, the d section and the f section are respectively located on two sides of the e section, and the d section is connected with the c section.
Further, the gas inlet channel comprises an inner cylinder and an outer cylinder, a gas flow channel is formed between the inner cylinder and the outer cylinder, and a self-circulation groove for communicating the gas flow channel with an inner cavity of the inner cylinder is formed in the inner cylinder; the air guide cover is arranged on the inner side of the outer barrel, and an air flow gap for air flow to pass through is formed between the air outlet end of the air guide cover and the air inlet end of the inner barrel.
Further, the air guide sleeve groove is communicated with the gas flow channel.
Furthermore, the included angle between the section d and the horizontal plane is alpha 1 ，α 1 The range of (a) is 20-40 deg.
Furthermore, the air guide sleeve is provided with an outer side wall of the air guide sleeve, the outer side wall of the air guide sleeve comprises an h section, an i section and a j section which are sequentially connected, and the h section, the i section and the j section are all straight line sections; the outer diameter of the j section is larger than that of the h section; the included angle between the section i and the horizontal plane is alpha 2 ，α 2 The range of (A) is 5-15 degrees.
Further, the inner wall of the inner cylinder comprises an s section, an m section and an n section which are sequentially connected, wherein the s section is a straight line section, the m section is an arc section, and the n section is a straight line section; the air inlet end part of the inner cylinder is marked as a p section, and the n section is connected with the p section; the n segments are parallel to the d segments.
Further, the outer cylinder is connected with the section j through a connecting pin.
Furthermore, a gap is reserved between the outer cylinder and the h section.
Further, an outer cylinder groove is formed in the air inlet end of the outer cylinder, and the flow guide cover is arranged in the outer cylinder groove; the air outlet end surface of the air guide sleeve is attached to the groove bottom of the outer barrel groove.
Furthermore, a reinforcing rib is arranged between the inner cylinder and the outer cylinder.
After the technical scheme is adopted, the utility model has the advantages that one end of the shell of the compressor shell component of the turbocharger is provided with a cylindrical air inlet channel; the inner side of the shell is provided with a flow guide cover, the flow guide cover is provided with a flow guide cover inner wall, an air inlet cavity is enclosed by the flow guide cover inner wall, and the flow guide cover inner wall is of an arc structure protruding towards the air inlet cavity and marked as a section a; a flow guide cover groove is formed in the air outlet side of the flow guide cover, and the flow guide cover groove is connected with the inner wall of the flow guide cover through a flow guide cover connecting section; the air guide sleeve connecting section comprises two arc sections which are respectively marked as a section b and a section c, and the section b is connected with the section a; the air guide sleeve groove comprises a d section, an e section and an f section, the d section and the f section are straight line sections, the e section is an arc section, the d section and the f section are respectively located on two sides of the e section, and the d section is connected with the c section. The utility model discloses the structure of kuppe used can make the air current of compressor import department stable, can not appear the pressure fluctuation when transmitting to the compressor is inside to reduce the noise of compressor air inlet department.
Drawings
Fig. 1 is a schematic structural view of a turbocharger compressor housing assembly of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of the area B in FIG. 2;
FIG. 4 is an enlarged schematic view of region C of FIG. 2;
FIG. 5 is an enlarged perspective view of the housing of FIG. 1;
FIG. 6 is an enlarged schematic view of the pod of FIG. 1;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 6;
FIG. 8 is an enlarged schematic view of region E of FIG. 7;
FIG. 9 is a schematic view of the flow of air upon impending occlusion;
FIG. 10 is a schematic view of the flow of air in imminent surge;
in the drawings, the direction of the arrow indicates the flow direction of the gas;
in the figure: 1. a housing; 11. an outer cylinder; 12. an inner barrel; 121. a self-circulation tank; 122. the inner wall of the inner cylinder; 123. an air inlet end of the inner cylinder; 13. reinforcing ribs; 2. a dome; 21. an air inlet cavity; 22. the inner wall of the air guide sleeve; 23. a dome connection section; 24. a dome groove; 25. the outer side wall of the air guide sleeve; 26. the air outlet end of the air guide sleeve; 3. an air flow gap; 4. and (7) connecting pins.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3, 4 and 5, a turbocharger compressor housing assembly includes a housing 1, one end of the housing 1 has a cylindrical air inlet passage, and the other end of the housing 1 has a disc-shaped structure.
As shown together with fig. 2, fig. 6, fig. 7, and fig. 8, at the air inlet end of the air inlet channel, a flow guide sleeve 2 is arranged inside the housing 1, the flow guide sleeve 2 has a flow guide sleeve inner wall 22, the flow guide sleeve inner wall 22 encloses an air inlet cavity 21, the diameter of the air inlet end of the air inlet cavity 21 is preferably 135.4mm, and the diameter of the air outlet end of the air inlet cavity 21 is preferably 85.9mm. The inner wall 22 of the air guide sleeve is an arc protruding towards the air inlet cavity 21 and is marked as a section, the radius of the section a is marked as R1, and R1 is preferably 45mm. A guide cover groove 24 is further formed in the air outlet side of the guide cover 2, and the guide cover groove 24 is connected with the inner wall 22 of the guide cover through a guide cover connecting section 23; the dome connecting section 23 comprises two arc-shaped sections, which are respectively denoted as a section b and a section c, the radius of the section b is denoted as R2, and R2 is preferably3mm, the radius of the segment c is designated as R3, R3 is preferably 2.5mm, and the segment b is connected to the segment a. The air guide sleeve groove 24 comprises a d section, an e section and an f section, the d section and the f section are straight line sections, the e section is an arc section, the d section and the f section are respectively located on two sides of the e section, and the d section is connected with the c section. The included angle between the section d and the horizontal plane is alpha 1 ，α 1 In the range of 20 DEG to 40 DEG, alpha 1 Preferably 30. The radius of the section e is denoted as R4, R4 preferably being 4.5mm. The length of the f-section is preferably 13mm.
The air inlet passage preferably comprises an inner barrel 12 and an outer barrel 11, with a reinforcing rib 13 disposed between the inner barrel 12 and the outer barrel 11. An air flow channel is formed between the inner cylinder 12 and the outer cylinder 11, and the air guide sleeve groove 24 is communicated with the air flow channel. The inner cylinder 12 is provided with a self-circulation groove 121 for communicating the gas flow passage with the inner cavity of the inner cylinder. The air guide sleeve 2 is arranged on the inner side of the outer cylinder 11, an air flow gap 3 for air flow to pass through is formed between the air guide sleeve outlet end 26 of the air guide sleeve 2 and the inner cylinder inlet end 123 of the inner cylinder 12, and the width of the air flow gap 3 is preferably 6.2mm.
An outer cylinder groove is preferably formed at the air inlet end of the outer cylinder 11, and the flow guide sleeve 2 is arranged in the outer cylinder groove; the end surface of the air outlet end 26 of the air guide sleeve 2 is attached to the groove bottom of the outer cylinder groove.
The air guide sleeve 2 is provided with an air guide sleeve outer side wall 25, the air guide sleeve outer side wall 25 comprises an h section, an i section and a j section which are sequentially connected, and the h section, the i section and the j section are straight line sections; the outer diameter of the section j is larger than that of the section h; the included angle between the section i and the horizontal plane is alpha 2 ，α 2 In the range of 5 DEG to 15 DEG, alpha 1 Preferably 10.
The inner cylinder wall 122 of the inner cylinder 12 comprises an s section, an m section and an n section which are sequentially connected, wherein the s section is a straight line section, the m section is an arc section, and the n section is a straight line section; the inner cylinder air inlet end 123 of the inner cylinder 12 is marked as a p section, and the n section is connected with the p section; the n segment is parallel to the d segment.
The outer cylinder 11 is connected with the section j through the connecting pin 4, and meanwhile, the outer cylinder 11 and the section j are in interference fit when being installed. A gap is reserved between the outer barrel 11 and the h section, so that abrasion between the outer barrel 11 and the h section can be effectively prevented.
As shown in fig. 9, when the blockage is imminent, a part of the gas firstly enters the gas flow channel through the gas flow gap 3, and then enters the inner cavity of the inner barrel 12 through the self-circulation groove 121.
Referring to fig. 10, when surging is imminent, a part of the gas first passes through the self-circulation groove 121 and enters the gas flow channel from the inner cavity of the inner barrel 12.
In the description of the present specification, it is to be understood that the orientations or positional relationships described in the "inner tube", "outer tube", "inner side", "inner tube wall", "inner tube end", "inner dome wall", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative labor from the above conception, and all the changes fall within the protection scope of the present invention.
Claims (10)
1. A turbocharger compressor housing assembly comprising a housing having a cylindrical air inlet passage at one end; the inner side of the shell is provided with a flow guide cover, the flow guide cover is provided with a flow guide cover inner wall, an air inlet cavity is defined by the flow guide cover inner wall, and the flow guide cover inner wall is in an arc shape protruding towards the air inlet cavity and marked as an a section; a guide cover groove is further formed in the air outlet side of the guide cover, and the guide cover groove is connected with the inner wall of the guide cover through a guide cover connecting section; the air guide sleeve connecting section comprises two arc sections which are respectively marked as a section b and a section c, and the section b is connected with the section a; the guide cover groove comprises a d section, an e section and an f section, the d section and the f section are straight line sections, the e section is an arc section, the d section and the f section are respectively located on two sides of the e section, and the d section is connected with the c section.
2. The turbocharger compressor housing assembly according to claim 1, wherein the air inlet channel comprises an inner cylinder and an outer cylinder, a gas flow passage is formed between the inner cylinder and the outer cylinder, and a self-circulation groove communicating the gas flow passage with an inner cavity of the inner cylinder is formed in the inner cylinder; the air guide cover is arranged on the inner side of the outer barrel, and an air flow gap for air flow to pass through is formed between the air outlet end of the air guide cover and the air inlet end of the inner barrel.
3. The turbocharger compressor housing assembly of claim 2, wherein said dome recess communicates with said gas flowpath.
4. The turbocharger compressor housing assembly of claim 3, wherein the d segment is angled from horizontal by an angle α 1 ，α 1 The range of (A) is 20-40 degrees.
5. The turbocharger compressor casing assembly of claim 4, wherein the shroud has a shroud outer sidewall comprising successively connected h, i, and j segments, the h, i, and j segments all being straight segments; the outer diameter of the j section is larger than that of the h section; the included angle between the section i and the horizontal plane is alpha 2 ，α 2 The range of (a) is 5-15 deg.
6. The turbocharger compressor housing assembly according to claim 4, wherein the inner cylinder inner wall of the inner cylinder comprises an s section, an m section and an n section which are connected in sequence, the s section is a straight section, the m section is an arc section, and the n section is a straight section; the air inlet end part of the inner cylinder is marked as a p section, and the n section is connected with the p section; the n segments are parallel to the d segments.
7. The turbocharger compressor housing assembly of claim 5, wherein the outer barrel and the j section are connected by a connecting pin.
8. The turbocharger compressor housing assembly of claim 5, wherein a gap is left between the outer barrel and the h-section.
9. The turbocharger compressor housing assembly according to claim 2, wherein an outer cylinder groove is formed at the air inlet end of the outer cylinder, and the flow guide cover is arranged in the outer cylinder groove; the air outlet end surface of the air guide sleeve is attached to the groove bottom of the outer barrel groove.
10. The turbocharger compressor housing assembly of claim 2, wherein a reinforcement rib is disposed between the inner and outer barrels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222294827.0U CN218177553U (en) | 2022-08-30 | 2022-08-30 | Compressor shell assembly of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222294827.0U CN218177553U (en) | 2022-08-30 | 2022-08-30 | Compressor shell assembly of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177553U true CN218177553U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222294827.0U Active CN218177553U (en) | 2022-08-30 | 2022-08-30 | Compressor shell assembly of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218177553U (en) |
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2022
- 2022-08-30 CN CN202222294827.0U patent/CN218177553U/en active Active
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