CN101251129A - Turbosupercharger air compressor with silencing function - Google Patents
Turbosupercharger air compressor with silencing function Download PDFInfo
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- CN101251129A CN101251129A CNA2008100156758A CN200810015675A CN101251129A CN 101251129 A CN101251129 A CN 101251129A CN A2008100156758 A CNA2008100156758 A CN A2008100156758A CN 200810015675 A CN200810015675 A CN 200810015675A CN 101251129 A CN101251129 A CN 101251129A
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Abstract
The invention discloses a turbocharger gas compressor with sound attenuation function, comprising a blower impeller, a gas diffusion channel and a gas compressor casing, wherein the gas compressor casing is provided with an air outlet pipe which is provided with a gas compressor silencer. The invention, which realizes external adjustment of gas through improving an engine air inlet pipe arranged behind the turbocharger gas compressor, realizes air flow adjustment and sound attenuation function of supercharging gas, thereby effectively overcoming the adjustment defect of a gas compressor in air flow direction and flow rate inside the prior turbocharger structure.
Description
Technical field
The present invention relates to a kind of exhaust-gas turbocharger that rev-happy engine adopts, relate to a kind of flow velocity and the flow direction that can effectively adjust gas after the supercharging specifically, reduce airspeed and gas noise, have the turbocharger air compressor of silencing function, belong to field of internal combustion engine.
Background technique
Along with the fast development of domestic engine technology and the increasingly stringent of Abgasgesetz, the engine turbine supercharging technology has obtained popularizing rapidly.In recent years, motor especially the diesel engine supercharging rate increase substantially.But be subjected to the restriction of turbocharger arrangement and matching properties, running into some new industry difficult problems aspect the rev-happy engine supercharging, wherein the aerodynamic noise of gas has become the user and has relatively paid close attention to and urgent problem after the supercharging.Especially vehicle turbocharger is under the bigger situation of working conditions change scope, and the pressure surge of pressurization gas is big, causes pressurized machine generation aerodynamic noise under some operating mode.
As shown in Figure 1, the gas compressor of turbosupercharger (3) partly comprises compressor impeller (9), gas diffusion passage (11), compressor casing (10) three parts, compressor impeller under proper functioning (9) high speed rotating under the drive of turbine rotor (13) sucks clean air from compressor inlet (8) and carries out centrifugal compression, high-speed boosting gas after the compression enters gas diffusion passage (11) from compressor impeller outlet (7), kinetic energy begins to be converted into the pressure energy, gas enters compressor casing runner (12) under the constraint of gas diffusion passage (11) simultaneously, as Fig. 2, shown in Figure 3, pressurization gas compiles the back and enters engine charge pipeline (4) by compressor casing outlet (14) in compressor casing runner (12), the intake manifold (5) through motor (1) sends into cylinder (6) and participates in burning then.
Gas flow rate is very high after turbocharger supercharged, can reach the supersonic speed level sometimes.Known turbocharger air compressor is because reasons such as structure and layout, the pressurized gas flow velocity that enters compressor casing runner (12) from gas diffusion passage (11) is still very high, gas still has very high flow velocity and expansion acting ability in compressor casing runner (12) and engine charge pipeline (4) in flow process, cause the pressurization gas loss to increase, temperature rises.More seriously gas flow-disturbing phenomenon takes place in high-speed boosting gas easily in flow process, produces tangible aerodynamic noise.This phenomenon is at many high rotating speed supercharged engine, as particularly evident in high-grade passenger car diesel engine, the petrol engine.
At this stage, for the non-middle cold engine of the higher supercharging of some power per liter, because engine charge pipeline (4) length behind the gas compressor steam outlet pipe (14) is shorter, the aerodynamic noise that the gas flow-disturbing causes is particularly evident.Main because the gas flow rate height behind the turbocharger air compressor steam outlet pipe (14), the boost pressure instability, the on-off action of the inlet and outlet door of each cylinder (6) of motor (1) has influence on the gas flow behind the gas compressor, produces the phenomenon of falling the exhaust, and engine noise strengthens.
Therefore, wish a kind of gas compressor that can play pneumatic erasure effect of design, solve rev-happy engine and the supercharging of the promotion power engine aerodynamic noise problem of gas later on.By gas compressor movement-oriented to pressurization gas, fully realize the adjustments of gas diffusion, reduce the purpose of flow velocity.Thereby the aerodynamic noise that produces in reduction and the Engine Matching process.
Summary of the invention
Problem to be solved by this invention be in the turbocharger air compressor structure to the narrow limitation of pressurization gas FLOW CONTROL, a kind of turbocharger air compressor with silencing function is provided, can effectively solves especially pressurization gas extension pressur efficiency problem in the petrol engine coupling of pressurization gas aerodynamic noise problem and improvement and high speed engine.
In order to address the above problem, the present invention by the following technical solutions:
A kind of turbocharger air compressor with silencing function comprises compressor impeller, gas diffusion passage, compressor casing, and described compressor casing is provided with steam outlet pipe, it is characterized in that: described steam outlet pipe is provided with the gas compressor baffler.
Below be further improvement of these options of the present invention:
Described gas compressor baffler comprises blower outlet housing that is connected with the steam outlet pipe one and the air flow regulator that is installed in the blower outlet housing.
Described air flow regulator comprises the gas compressor outgoing gas connection tube that is communicated with steam outlet pipe, has the air-flow main passage in the gas compressor outgoing gas connection tube, the excircle of gas compressor outgoing gas connection tube is provided with the noise reduction next door of annular, form the silencing cavity of sealing between described noise reduction next door and the blower outlet housing, the tube wall of described gas compressor outgoing gas connection tube is provided with the silencing cavity air-flow path that is communicated with silencing cavity and air-flow main passage.
The later gas of described supercharging carries out the gas noise reduction by the silencing cavity air-flow path that is distributed in the runner periphery during by the air-flow main passage.
Described noise reduction next door comprises the first noise reduction next door, the second noise reduction next door, forms first silencing cavity of sealing between described first noise reduction next door and the blower outlet housing, forms second silencing cavity of sealing between described second noise reduction next door and the blower outlet housing.
According to the noise reduction needs, can fill quieter material in the silencing cavity to improve gas erasure effect, air flow regulator is set up multistage silencing cavity according to the noise reduction needs at axial position, but considers pressure loss problem, and suggestion mesolow turbosupercharger noise reduction progression is not more than three grades.Air flow regulator has main flow of gas to move passage on gas flow direction, realizes the silencing function of pressurization gas diametrically with blower outlet cavity groups single-stage or multistage silencing cavity.
For reducing gas loss, the sectional area of the silencing cavity air-flow path of described connection first silencing cavity is less than the sectional area of the silencing cavity air-flow path that is communicated with second silencing cavity.
Be convenient processing, the cross section of described silencing cavity gas channel is circle or rectangle.
Described silencing cavity gas channel is Odd number at the periphery of gas compressor outgoing gas connection tube and arranges.So that reduce the pneumatic flow-disturbing that in the noise reduction process, causes.
Improve as another kind:
Described gas compressor baffler is a single blind pipe gas baffler, and the one end is communicated with steam outlet pipe, and the other end sealing is to improve erasure effect, the silencing cavity internal diameter that described list props up blind pipe gas baffler be the steam outlet pipe internal diameter 0.2-0.5 doubly; The length of single blind pipe gas hush pipe is 10-15 times of silencing cavity internal diameter.
As further improving:
Described gas compressor baffler comprises some gas hush pipes, and described some gas hush pipes are arranged on the circumference of steam outlet pipe, and its two ends are communicated with steam outlet pipe respectively, and the internal diameter of gas hush pipe is 0.5-1 a times of steam outlet pipe internal diameter; Described hush pipe internal capacity summation is steam outlet pipe 2-4 times at this section total measurement (volume), adopt the type noise-reducing structure can reduce the space requirement of airflow direction greatly because of adopting single blind pipe gas hush pipe to increase, the quantity of described gas hush pipe is odd number, so that reduce the pneumatic flow-disturbing that causes in the noise reduction process.
Beneficial effect
The present invention is by to the designing and developing of turbocharger air compressor outlet gas part, and effectively solved in the present turbocharger arrangement gas compressor to the adjusting defective of air flow direction and flow velocity.The noise-reducing structure of the turbocharger air compressor with pressurization gas silencing function among the present invention adopts the air outlet housing and the air flow regulator of gas compressor to form a plurality of cavitys, can form multiple cavity combinations as required, thereby effectively the steering flow direction is controlled airspeed.Noise reduction principle in this invention realizes by the engine charge pipeline behind the improvement supercharger air compressor that at present turbocharger arrangement the outside of gas is regulated, and realizes the gas flow modulation and the silencing function of pressurization gas.Air flow regulator volume among the present invention is little, simple in structure, can adopt screw thread or press mounting structure to realize assembling with gas compressor air outlet housing, realizes through engineering approaches easily.
To sum up, adopt turbocharger air compressor can effectively improve the aeroperformance of pressurized machine, flow to and flow velocity plays the purpose of noise reduction by adjustments of gas with pressurization gas silencing function.This invention has certain pneumatic diffusion ability, can effectively solve pressurization gas through the aerodynamic loss problem behind the noise-reducing structure when realizing the gas noise reduction.Satisfy high-grade passenger car to reducing the demand of turbosupercharger aerodynamic noise.Big variation does not take place in supercharger integrated structure, and cost is low, realizes having the vast market promotional value easily, can obtain good effect.
Below in conjunction with drawings and Examples patent of the present invention is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of turbocharger air compressor in the background technique;
Accompanying drawing 2 is connecting pipeline schematic representation of supercharged engine in the background technique;
Accompanying drawing 3 is plan views of accompanying drawing 2;
Accompanying drawing 4 is structural representations of turbosupercharger silencing function gas compressor in the embodiment of the invention 1;
Accompanying drawing 5 is that B-B in the accompanying drawing 4 is to sectional view;
Accompanying drawing 6 is structural representations of air flow regulator in the embodiment of the invention 1;
Accompanying drawing 7 is that the turbosupercharger noise-reducing structure is installed in structural representation on the motor in the embodiment of the invention 2;
Accompanying drawing 8 is structural representations of single blind pipe gas hush pipe in the embodiment of the invention 2;
Accompanying drawing 9 is that the turbosupercharger noise-reducing structure is installed in structural representation on the motor in the embodiment of the invention 3;
Accompanying drawing 10 is structural representations of many blind pipe gas hush pipes in the embodiment of the invention 3.
Among the figure: the 1-motor, 2-first silencing cavity, the 3-turbosupercharger, 4-engine charge pipeline, 5-intake manifold, the 6-cylinder, the outlet of 7-compressor impeller, the 8-compressor inlet, the 9-compressor impeller, the 10-compressor casing, 11-gas diffusion passage, 12-compressor casing runner, the 13-turbine rotor, the 14-steam outlet pipe, 15-gas compressor baffler, 16-gas compressor outgoing gas connection tube, the 17-air flow regulator, 18-air-flow main passage, 19-silencing cavity air-flow path, 20-second silencing cavity, 21-blower outlet housing, the 22-second silencing cavity next door, the 23-first silencing cavity next door, single blind pipe gas of 24-hush pipe, 25-gas hush pipe.
Embodiment
Embodiment 1, as shown in Figure 4, a kind of turbocharger air compressor with silencing function, comprise compressor impeller 9, gas diffusion passage 11, compressor casing 10, described compressor casing 10 is provided with steam outlet pipe 14, described steam outlet pipe 14 is provided with gas compressor baffler 15, described gas compressor baffler 15 comprises blower outlet housing 21 that is connected with steam outlet pipe 14 one and the air flow regulator 17 that is installed in the blower outlet housing 21, as Fig. 5, shown in Figure 6, described air flow regulator 17 comprises the gas compressor outgoing gas connection tube 16 that is communicated with steam outlet pipe 14, has air-flow main passage 18 in the gas compressor outgoing gas connection tube 16, the excircle of gas compressor outgoing gas connection tube 16 is provided with the noise reduction next door of annular, described noise reduction next door comprises the first noise reduction next door 23, the second noise reduction next door 22, form first silencing cavity 2 of sealing between described first noise reduction next door 23 and the blower outlet housing 21, form second silencing cavity 20 of sealing between described second noise reduction next door 22 and the blower outlet housing 21, the tube wall of described gas compressor outgoing gas connection tube 16 is provided with the silencing cavity air-flow path 19 that is communicated with silencing cavity and air-flow main passage 18, described silencing cavity gas channel 19 is Odd number at the periphery of gas compressor outgoing gas connection tube 16 arranges, so that reduce the pneumatic flow-disturbing that causes in the noise reduction process.
Consider the airstream vibration loss, the suggestion silencing cavity axially is being no more than three grades of noise reductions, and 22 maximum outside diameter places, the second silencing cavity next door adopt worm structure, realize connecting with the fastening of blower outlet housing 21.Described silencing cavity air-flow path 19 is in air-flow main passage 18 circumferential distribution, and silencing cavity air-flow path 19 adopts the rectangular shape or the circular hole shape of processing easily, realizes the pressurization gas exchange in silencing cavity 20 and the air-flow main passage 18.Consider erasure effect, the sectional area of the silencing cavity air-flow path 19 of described connection first silencing cavity 2 is less than the sectional area of the silencing cavity air-flow path 19 that is communicated with second silencing cavity 20, and Returning flow main passage 18 enters the dynamic combustion that engine charge pipeline 4 participates in the engine cylinder 6 by gas compressor outgoing gas connection tube 16 described pressurization gas shakes noise reduction in gas compressor baffler 15 after.
Patent of the present invention has been finished the exploitation of the gas compressor baffler of being made up of blower outlet housing and air flow regulator at turbosupercharger noise reduction demand, has effectively controlled airflow direction, has reduced the supercharging aerodynamic noise that gas kinetic energy is brought.The turbocharger air compressor that the type has the pressurization gas silencing function can adopt same type of material and existing casting and processing technique to finish.Simultaneously, can carry out function expansions such as the inner filling of silencing cavity attractive material according to supercharger structure and boost pressure needs.
Embodiment 2, as shown in Figure 7, a kind of turbocharger air compressor with silencing function, comprise compressor impeller 9, gas diffusion passage 11, compressor casing 10, described compressor casing 10 is provided with steam outlet pipe 14, described steam outlet pipe 14 is provided with the gas compressor baffler, described gas compressor baffler is a single blind pipe gas baffler 24, the one end is communicated with steam outlet pipe 14, the other end sealing, as shown in Figure 8, be to improve erasure effect, the silencing cavity internal diameter that described list props up blind pipe gas baffler 24 be steam outlet pipe 14 internal diameters 0.2-0.5 doubly; The length of single blind pipe gas hush pipe 24 is 10-15 times of silencing cavity internal diameter.
Patent of the present invention is at the noise reduction demand of high speed engine to turbosupercharger, finished exploitation with silencing function supercharger air compressor, effectively control the flow velocity and the flow direction of pressurization gas, make full use of the gas compressor connecting pipeline and carried out pneumatic expansion, played the purpose of air-flow control and noise reduction.This silencing function air compressor structure can be finished by compressor casing same type of material and existing casting and processing technique, can expand the employing pressure casting process simultaneously.
Embodiment 3, as shown in Figure 9, a kind of turbocharger air compressor with silencing function, comprise compressor impeller 9, gas diffusion passage 11, compressor casing 10, described compressor casing 10 is provided with steam outlet pipe 14, described steam outlet pipe 14 is provided with the gas compressor baffler, described gas compressor baffler comprises some gas hush pipes 25, described some gas hush pipes 25 are arranged on the circumference of steam outlet pipe 14, its two ends are communicated with steam outlet pipe 14 respectively, adopt the type noise-reducing structure can reduce the space requirement of airflow direction greatly because of adopting single blind pipe gas hush pipe 24 to increase, as shown in figure 10, the internal diameter of gas hush pipe 25 be steam outlet pipe 14 internal diameters 0.5-1 doubly; Described hush pipe 25 internal capacity summations are steam outlet pipe 14 2-4 times at this section total measurement (volume), and the arm quantity of described gas hush pipe 25 is odd number, so that reduce the air-flow flow-disturbing that causes in the noise reduction process.
Patent of the present invention is at the noise reduction demand of high speed engine to turbosupercharger, finished exploitation with silencing function supercharger air compressor, effectively control the flow velocity and the flow direction of pressurization gas, make full use of the gas compressor connecting pipeline and carried out pneumatic expansion, played the purpose of air-flow control and noise reduction.This silencing function air compressor structure can be finished by compressor casing same type of material and existing casting and processing technique, can expand the employing pressure casting process simultaneously.
We have been described in detail the present invention according to the national patent method now, can discern the improvement or the replacement of specific embodiment disclosed herein for those of ordinary skill in the art.These modifications are within the spirit and scope of the present invention.
Claims (10)
1, a kind of turbocharger air compressor with silencing function, comprise compressor impeller (9), gas diffusion passage (11), compressor casing (10), described compressor casing (10) is provided with steam outlet pipe (14), it is characterized in that: described steam outlet pipe (14) is provided with the gas compressor baffler.
2, the turbocharger air compressor with silencing function according to claim 1 is characterized in that: described gas compressor baffler comprises the blower outlet housing (21) that is connected with steam outlet pipe (14) one and is installed in the interior air flow regulator (17) of blower outlet housing (21).
3, turbocharger air compressor with silencing function according to claim 2, it is characterized in that: described air flow regulator (17) comprises the gas compressor outgoing gas connection tube (16) that is communicated with steam outlet pipe (14), has air-flow main passage (18) in the gas compressor outgoing gas connection tube (16), the excircle of gas compressor outgoing gas connection tube (16) is provided with the noise reduction next door of annular, form the silencing cavity of sealing between described noise reduction next door and the blower outlet housing (21), the tube wall of described gas compressor outgoing gas connection tube (16) is provided with the silencing cavity air-flow path (19) that is communicated with silencing cavity and air-flow main passage (18).
4, turbocharger air compressor with silencing function according to claim 3, it is characterized in that: described noise reduction next door comprises the first noise reduction next door (23), the second noise reduction next door (22), form first silencing cavity (2) of sealing between described first noise reduction next door (23) and the blower outlet housing (21), form second silencing cavity (20) of sealing between described second noise reduction next door (22) and the blower outlet housing (21), the sectional area of the silencing cavity air-flow path (19) of described connection first silencing cavity (2) is less than the sectional area of the silencing cavity air-flow path (19) that is communicated with second silencing cavity (20).
5, the turbocharger air compressor with silencing function according to claim 4 is characterized in that: the cross section of described silencing cavity gas channel (19) is circle or rectangle.
6, the turbocharger air compressor with silencing function according to claim 5 is characterized in that: described silencing cavity gas channel (19) is odd number at the periphery of gas compressor outgoing gas connection tube (16) and arranges.
7, the turbocharger air compressor with silencing function according to claim 1 is characterized in that: described gas compressor baffler is a single blind pipe gas baffler (24), and the one end is communicated with steam outlet pipe (14), the other end sealing.
8, the turbocharger air compressor with silencing function according to claim 7 is characterized in that: the silencing cavity internal diameter that described list props up blind pipe gas baffler (24) be steam outlet pipe (14) internal diameter 0.2-0.5 doubly; The length of single blind pipe gas hush pipe (24) is 10-15 times of silencing cavity internal diameter.
9, the turbocharger air compressor with silencing function according to claim 1, it is characterized in that: described gas compressor baffler comprises some gas hush pipes (25), described some gas hush pipes (25) are arranged on the circumference of steam outlet pipe (14), and its two ends are communicated with steam outlet pipe (14) respectively.
10, the turbocharger air compressor with silencing function according to claim 9 is characterized in that: the internal diameter of gas hush pipe (25) is 0.5-1 a times of steam outlet pipe (14) internal diameter; Described hush pipe (25) internal capacity summation is steam outlet pipe (14) 2-4 times at this section total measurement (volume), and the quantity of described gas hush pipe (25) is odd number.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100156758A CN101251129A (en) | 2008-04-14 | 2008-04-14 | Turbosupercharger air compressor with silencing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100156758A CN101251129A (en) | 2008-04-14 | 2008-04-14 | Turbosupercharger air compressor with silencing function |
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| CN101251129A true CN101251129A (en) | 2008-08-27 |
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| CNA2008100156758A Pending CN101251129A (en) | 2008-04-14 | 2008-04-14 | Turbosupercharger air compressor with silencing function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762712A (en) * | 2016-11-29 | 2017-05-31 | 扬州大学 | A kind of oil-gas transportation device |
| CN106988998A (en) * | 2016-01-21 | 2017-07-28 | 通用汽车环球科技运作有限责任公司 | Compressor housing |
| CN107676313A (en) * | 2017-08-03 | 2018-02-09 | 上海空间推进研究所 | A kind of space gas circuit, which is added, uses boost module |
| CN114033588A (en) * | 2021-11-02 | 2022-02-11 | 潍坊科技学院 | Compressor integrated heat exchange device of supercharger for respirator closed cycle engine |
| CN115577575A (en) * | 2022-12-08 | 2023-01-06 | 太仓点石航空动力有限公司 | Compressor performance degradation identification method and system based on pressure ratio index |
-
2008
- 2008-04-14 CN CNA2008100156758A patent/CN101251129A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988998A (en) * | 2016-01-21 | 2017-07-28 | 通用汽车环球科技运作有限责任公司 | Compressor housing |
| US10443614B2 (en) | 2016-01-21 | 2019-10-15 | GM Global Technology Operations LLC | Compressor housing |
| CN106762712A (en) * | 2016-11-29 | 2017-05-31 | 扬州大学 | A kind of oil-gas transportation device |
| CN107676313A (en) * | 2017-08-03 | 2018-02-09 | 上海空间推进研究所 | A kind of space gas circuit, which is added, uses boost module |
| CN107676313B (en) * | 2017-08-03 | 2019-07-05 | 上海空间推进研究所 | A kind of space gas circuit, which is added, uses boost module |
| CN114033588A (en) * | 2021-11-02 | 2022-02-11 | 潍坊科技学院 | Compressor integrated heat exchange device of supercharger for respirator closed cycle engine |
| CN115577575A (en) * | 2022-12-08 | 2023-01-06 | 太仓点石航空动力有限公司 | Compressor performance degradation identification method and system based on pressure ratio index |
| CN115577575B (en) * | 2022-12-08 | 2023-03-14 | 太仓点石航空动力有限公司 | Compressor performance degradation identification method and system based on pressure ratio index |
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Open date: 20080827 |