CN110067641B - Supercharger recirculation valve and turbocharger - Google Patents

Supercharger recirculation valve and turbocharger Download PDF

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Publication number
CN110067641B
CN110067641B CN201910474479.5A CN201910474479A CN110067641B CN 110067641 B CN110067641 B CN 110067641B CN 201910474479 A CN201910474479 A CN 201910474479A CN 110067641 B CN110067641 B CN 110067641B
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valve
muffler
supercharger
silencer
cavity
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CN201910474479.5A
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CN110067641A (en
Inventor
侯亦波
杨冰
豆刚
冯玮玮
雷淋森
张增光
张良超
丁光辉
滕建耐
陆荣荣
阮仁宇
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1288—Intake silencers ; Sound modulation, transmission or amplification combined with or integrated into other devices ; Plurality of air intake silencers
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention relates to a supercharger recirculation valve and a turbocharger. The supercharger recirculation valve comprises a circulation valve structure arranged on a silencer assembly and a silencer structure connected with the circulation valve structure; the circulating valve structure comprises a valve air inlet pipe communicated with the silencer assembly, a valve main body communicated with the valve air inlet pipe, and a valve air release pipe communicated with the valve main body, wherein the valve air release pipe is communicated with the supercharger air inlet pipe; the valve main body comprises a valve seat body which is connected with the valve air inlet pipe and is provided with a valve cavity, and a valve structure which is movably arranged in the valve cavity; a valve air inlet channel is arranged in the valve air inlet pipe, and a valve air outlet channel is arranged in the valve air outlet pipe; when the valve structure is opened, the valve air inlet channel is communicated with the valve air outlet channel through the valve cavity; the muffler structure is including locating the first muffler in the valve pocket, first muffler isolating valve inlet channel and valve release passageway. The invention can reduce or eliminate surge noise and prolong the service life of the supercharger.

Description

Supercharger recirculation valve and turbocharger
Technical Field
The invention relates to the technical field of engines, in particular to a supercharger recirculation valve and a turbocharger.
Background
In order to respond to various national policies and regulations for energy conservation, environmental protection and safety, at present, more and more automobile engines adopt turbochargers which bring troubles in the aspects of noise and vibration while improving the dynamic property and the economical efficiency of the engines.
The automobile turbocharger is easy to generate surge under certain operating conditions, when an engine and the turbocharger run at a high speed, if a driver looses an accelerator suddenly at the moment, the opening of an engine throttle valve is reduced or closed instantly, the air inflow of the engine is reduced, the air inflow of the corresponding supercharger is reduced, the turbocharger still runs at a high speed under the action of inertia force, the turbocharger easily enters a surge working area at the moment, so that surge noise is generated, and meanwhile, the residual high-pressure gas in an air inlet pipeline can impact a compressor impeller of the turbocharger to influence the service life of the supercharger.
Disclosure of Invention
Accordingly, the invention provides a supercharger recirculation valve and a turbocharger, which can reduce or eliminate surge noise and prolong the service life of the supercharger.
In order to achieve the purpose, the invention provides the following technical scheme:
a supercharger recirculation valve comprises a circulation valve structure arranged on a silencer assembly and a silencer structure connected with the circulation valve structure;
the circulating valve structure comprises a valve air inlet pipe communicated with the silencer assembly, a valve main body communicated with the valve air inlet pipe, and a valve air release pipe communicated with the valve main body, wherein the valve air release pipe is communicated with a supercharger air inlet pipe;
the valve main body comprises a valve seat body which is connected with the valve air inlet pipe and is provided with a valve cavity, and a valve structure which is movably arranged in the valve cavity; a valve air inlet channel is arranged in the valve air inlet pipe, and a valve air outlet channel is arranged in the valve air outlet pipe; when the valve structure is opened, the valve air inlet channel is communicated with the valve air outlet channel through the valve cavity;
the muffler structure is including locating first muffler in the valve chamber, first muffler keeps apart valve inlet channel with the passageway is lost air to the valve.
Optionally, the first muffler includes a cylindrical first muffler body disposed in the valve cavity, and a valve resonant cavity is formed between the first muffler body and an inner wall surface of the valve cavity;
a plurality of first silencing holes are formed in the circumferential surface of the first silencing body, and the valve structure part is positioned in the first silencing body; when the valve structure is opened, the valve air inlet channel and the valve air outlet channel are communicated through the first silencing hole.
Optionally, the first silencer further comprises an annular first partition plate protruding from the circumferential surface of the first silencer body in the circumferential direction of the first silencer body, and a second partition plate and a third partition plate protruding from the circumferential surface of the first silencer body in the axial direction of the first silencer body;
the first baffle, the second baffle reaches the third baffle all with the internal face contact of valve chamber, the first baffle, the second baffle reaches the third baffle with enclose between the internal face of valve chamber and establish and form first valve resonant cavity and second valve resonant cavity, first valve resonant cavity with the second valve resonant cavity passes through the second baffle with the third baffle with the valve passageway of leaking gas separates.
Optionally, the valve structure includes a fixed shaft disposed on the valve seat body, a valve body disposed at one end of the fixed shaft, and a driving structure disposed on the valve seat body and used for driving the fixed shaft or the valve body to reciprocate, wherein the valve body is disposed in the first silencing body and used for blocking or opening the valve cavity.
Optionally, the valve inlet pipe is connected to the bottom end of the valve seat body, the valve structure is arranged at the top end of the valve seat body, and the valve outlet pipe is connected to the side surface of the valve seat body;
the valve chamber is opened in the cylindrical cavity in valve seat body middle part, valve inlet channel communicate in the valve chamber bottom, the valve is lost circulation the passageway and is communicated in the valve chamber lateral part.
Optionally, the muffler structure further comprises a second muffler arranged in the assembly barrel of the muffler assembly, one end of the second muffler is communicated with the supercharger air outlet pipe, and the other end of the second muffler is communicated with the valve air inlet pipe.
Optionally, the second muffler includes a cylindrical second muffler body disposed in the component cylinder of the muffler component, the second muffler body is provided with a plurality of second muffling holes or/and muffling ports, and a main resonant cavity is defined between the second muffler body and the inner wall of the component cylinder of the muffler component.
Optionally, the second muffler further includes an annular partition plate assembly protruding from the circumferential surface of the second muffler body along the circumferential direction of the second muffler body, and the partition plate assembly partitions the main resonant cavity into a plurality of sub-resonant cavities.
Optionally, the partition assembly at least includes a fourth partition and a fifth partition protruding from the second sound-damping body, the fourth partition and the fifth partition separate the main resonant cavity into three sub-resonant cavities, the fourth partition and the fifth partition separate the second sound-damping body into three cylindrical sound-damping sections, each sound-damping section corresponds to one sub-resonant cavity, the middle sound-damping section is provided with a plurality of second sound-damping holes, and the sound-damping sections on two sides are provided with sound-damping ports.
In addition, the invention also provides a turbocharger, which comprises a turbocharger main body, a turbocharger air inlet pipe and a turbocharger air outlet pipe which are respectively connected to two ends of the turbocharger main body, and the turbocharger recirculation valve communicated with the turbocharger air inlet pipe, wherein the turbocharger air outlet pipe is communicated with one end of a silencer component, and the turbocharger recirculation valve is communicated with the other end of the silencer component.
According to the technical scheme provided by the invention, the self-circulation of high-pressure gas of the turbocharger can be realized by arranging the supercharger recirculation valve for connecting the silencer assembly and the turbocharger, so that the surge noise can be reduced or eliminated, and the service life of the turbocharger is prolonged. Moreover, the supercharger recirculation valve is arranged outside the turbocharger, so that enough space for arranging the supercharger recirculation valve and the silencer structure thereof can be ensured, the arrangement mode of the silencer structure can be diversified, the broadband silencing effect can be realized, and the air leakage noise effect of the supercharger recirculation valve is better.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic top view of a turbocharger according to the present invention;
FIG. 2 is a schematic three-dimensional schematic illustration of a supercharger recirculation valve (with the top of the valve body broken away) according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a supercharger recirculation valve (with the top of the valve body broken away) according to an embodiment of the present invention;
FIG. 4 is a simplified schematic cross-sectional view of a valve body (with the valve structure closed) of a supercharger recirculation valve according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a valve body (with the valve structure open) of a supercharger recirculation valve according to an embodiment of the present disclosure;
FIG. 6 is a diagrammatic, schematic perspective view of a first muffler of a supercharger recirculation valve according to an embodiment of the present disclosure;
FIG. 7 is a simplified schematic cross-sectional illustration of a valve body and muffler assembly of a supercharger recirculation valve according to an embodiment of the present disclosure;
FIG. 8 is a schematic, diagrammatic cross-sectional view of a turbocharger muffler assembly in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram showing the perspective view of a second muffler of a supercharger recirculation valve according to an embodiment of the present invention.
The reference numbers illustrate:
Figure BDA0002080396800000041
Figure BDA0002080396800000051
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the present invention further provides a turbocharger, including a turbocharger main body 10, a turbocharger inlet pipe 70 and a turbocharger outlet pipe 20 respectively connected to two ends of the turbocharger main body 10, and a turbocharger recirculation valve 60 communicated with the turbocharger inlet pipe 70, wherein the turbocharger outlet pipe 20 is communicated with one end of a muffler assembly 30, and the turbocharger recirculation valve 60 is communicated with the other end of the muffler assembly 30. Further, muffler assembly 30 is also in communication with throttle valve 40, and throttle valve 40 is also in communication with intake manifold 50. Namely, the supercharger recirculation valve 60 connected with the silencer component 30 and the supercharger main body 10 is arranged, so that the supercharger main body 10 and the silencer component 30 can be communicated in a circulating mode, high-pressure gas can be circulated in the turbocharger compressor, surge noise of the turbocharger can be effectively avoided, and the phenomenon that the service life of the turbocharger compressor is influenced due to the fact that the high-pressure gas impacts the impeller of the supercharger compressor can be avoided. Further, by disposing the supercharger recirculation valve 60 outside the supercharger body 10, the structure and volume thereof are not limited by the supercharger body, and the arrangement is free and convenient.
Thus, when the turbocharger is in a normal working state, high-pressure gas pressurized by the turbocharger main body 10 sequentially passes through the turbocharger air outlet pipe 20, the silencer component 30 and the throttle valve 40 to enter the air inlet manifold 50, and at the moment, the turbocharger recirculation valve 60 arranged on the silencer component 30 is in a closed state, so that the pressurized high-pressure gas is prevented from entering the turbocharger air inlet pipe 70 through the silencer component 30 and the turbocharger recirculation valve 60 to enter the turbocharger main body 10, and the insufficient pressurization pressure of the engine is avoided; when a driver looses the throttle valve suddenly, the opening degree of the throttle valve 40 of the engine is reduced or closed instantly, the supercharger main body 10 still keeps high-speed rotation due to inertia effect, so that high-pressure gas exists in a pipeline between the supercharger air outlet pipe 20 and the throttle valve 40, if the high-pressure gas is discharged in time, the turbocharger enters a surging working area, meanwhile, the high-pressure gas also impacts a supercharger impeller to influence the reliability of the supercharger, in order to avoid the above situation, the supercharger recirculation valve 60 can be opened, so that the high-pressure gas in the pipeline enters the supercharger air inlet pipe 70 through the silencer component 30 and the supercharger recirculation valve 60, and then enters the air compressor air inlet of the supercharger main body 10, and the part of gas enters the silencer component 30 again after being supercharged by the supercharger main body 10, so that the self-circulation of the high-pressure gas is realized, when the driver re-steps on the gas, the supercharger recirculation valve will close again.
Specifically, as shown in fig. 2-3, the supercharger recirculation valve 60 may include a circulation valve structure disposed on the muffler assembly 30, and a muffler structure coupled to the circulation valve structure. The circulation valve structure is used for communicating or separating the muffler assembly 30 and the supercharger body 10, and the muffler structure connected to the circulation valve structure can effectively reduce the bleeding noise generated when the circulation valve structure is opened.
Further, as shown in fig. 4 to 5, the above-described circulation valve structure may include a valve inlet pipe 200 communicating with the muffler assembly 30, a valve body 100 communicating with the valve inlet pipe 200, and a valve relief pipe 300 communicating with the valve body 100, the valve relief pipe 300 communicating with the supercharger inlet pipe 70. Also, the valve body 100 may include a valve seat body 110 connected to the valve inlet conduit 200 and having a valve chamber 102, and a valve structure 120 movably disposed in the valve chamber 102. The valve inlet duct 200 is provided with a valve inlet passage 210 therein, and the valve outlet duct 300 is provided with a valve outlet passage 310 therein. The valve inlet pipe 200 is connected to the muffler assembly 30 such that the valve inlet passage 210 communicates with the inner chamber of the muffler assembly 30; and the valve escape tube 300 is connected to the supercharger intake duct 70 such that the valve escape passage 310 communicates with the supercharger intake passage of the supercharger intake duct 70. Thus, when the valve structure 120 is opened, the valve structure 120 moves in a certain position in the valve cavity 102, so that the valve inlet passage 210 and the valve outlet passage 310 are communicated through the valve cavity 102, and high-pressure gas existing in a pipeline between the supercharger outlet pipe 20 and the throttle valve 40 can be conveyed into the valve cavity 102 of the valve seat body through the silencer assembly 30 and the valve inlet pipe 200, and conveyed to the supercharger outlet pipe 70 through the valve outlet pipe 300 to return to the supercharger main body 10; when the valve structure 120 is closed, the valve structure 120 moves to a position in the valve chamber 102 such that the valve inlet passage 210 and the valve outlet passage 310 are completely isolated by the valve structure 120, and high-pressure gas cannot be delivered from the valve inlet passage 210 to the valve outlet passage 310.
Furthermore, the valve structure 120 may include a fixed shaft 122 disposed on the valve seat body 110, a valve body 124 disposed at one end of the fixed shaft, and a driving structure disposed on the valve seat body 110 for driving the fixed shaft 122 or the valve body 124 to reciprocate, wherein the valve body 124 is disposed in the valve cavity 102 for blocking or opening the valve cavity 102. The valve body 124 is coupled and positioned by the stationary shaft 122, and the drive mechanism drives the valve body 124 or the stationary shaft such that the valve body 124 reciprocates within the valve chamber 102. When the valve body 124 moves to the position where the valve inlet passage 210 corresponds to the valve outlet passage 310, the two are completely separated; when the valve body 124 is removed from the position where the valve inlet passage 210 corresponds to the valve outlet passage 310, the valve inlet passage 210 communicates with the valve outlet passage 310. Moreover, the valve body 124 may be configured as a piston-type structure. The driving structure can be an electromagnetic driving structure, and the fixed shaft and the valve body can be driven to and fro by utilizing electromagnetic force. Further, a support bearing may be provided on the valve seat body 110 to support the fixed shaft 122.
Furthermore, in one embodiment, the valve inlet pipe 200 is connected to the bottom end of the valve seat body 110, the fixing shaft 122 of the valve structure 120 is disposed at the top end of the valve seat body 110, and the valve outlet pipe 300 is connected to the side surface of the valve seat body 110. The valve cavity 102 is a cylindrical cavity (or a similar cylindrical cavity) opened in the middle of the valve seat body 110, the valve inlet passage 210 is connected to the bottom of the valve cavity 102, and the valve outlet passage 310 is connected to the side of the valve cavity 102. The valve body 124 is disposed in the cylindrical cavity and can reciprocate along the axial direction of the cylindrical cavity. By communicating the valve inlet passage 210 with the bottom of the valve cavity 102 and the valve outlet passage 310 with the side of the valve cavity 102, not only is it easy to isolate the two with the valve body 124, but also it is easy to let high pressure gas from the bottom of the valve cavity 102 and out of the side of the valve cavity 102, and it is also easy to arrange the valve structure 120.
Further, the muffler structure described above with reference to fig. 4 to 6 may include the first muffler 400 provided in the valve chamber 102, and the first muffler 400 isolates the valve inlet passage 210 and the valve outlet passage 310. Thus, when the valve structure 120 is opened, the high-pressure gas in the valve inlet channel 210 enters the valve outlet channel 310 after being silenced by the first silencer 400, so as to avoid the high air-bleed noise caused by the high-pressure gas directly entering the valve outlet channel 310 from the valve inlet channel 210. Further, the first muffler 400 may include a cylindrical first muffler body 410 disposed in the valve chamber 102, and a valve resonance chamber is formed between the first muffler body 410 and an inner wall surface of the valve chamber 102. Furthermore, a plurality of first muffling holes 414 are formed on the circumferential surface of the first muffling body 410, and the valve body 124 of the valve structure 120 is partially located in the first muffling body 410. When the valve body 124 of the valve structure 120 is opened, the valve inlet passage 210 and the valve outlet passage 310 are communicated through the first muffling hole 414, and the high-pressure gas can enter the first muffling cavity 410 of the valve cavity 102 through the valve inlet passage 210 and enter the valve resonant cavity through the first muffling holes 414 formed in the first muffling body 410, so as to achieve resonance muffling, and meanwhile, the high-pressure gas can enter the valve outlet passage through the first muffling holes 414.
Further, the first muffler 400 may further include a ring-shaped first partition 420 protruded from the circumferential surface of the first muffler body 410 in the circumferential direction of the first muffler body 410, and a second partition 430 and a third partition 440 protruded from the circumferential surface of the first muffler body 410 in the axial direction of the first muffler body 410. The first, second and third diaphragms 420, 430 and 440 are in contact with the inner wall of the valve chamber 102, and the first, second and third diaphragms 320, 430 and 440 enclose the first and second valve resonance chambers 402 and 404 with the inner wall of the valve chamber 102, and the first and second valve resonance chambers 402 and 404 are separated from the valve bleed passage 310 by the second and third diaphragms 430 and 440. That is, the valve resonance cavity can be divided into the first valve resonance cavity 402 and the second valve resonance cavity 404 by the first partition plate 420, and the first resonance cavity 402 and the second resonance cavity 404 are simultaneously isolated from the valve bleed passage 310 by the second partition plate 430 and the third partition plate 440, so as to form two substantially complete resonance cavities, and prevent the high-pressure gas entering the first resonance cavity 402 and the second resonance cavity 404 from directly entering the valve bleed passage 310. Moreover, the position of the first partition 420 can be adjusted, the volumes of the two resonant cavities can be adjusted, and the air discharge noise of the supercharger recirculation valve 60 can be effectively reduced by adjusting the volumes of the resonant cavities and the apertures and the number of the first muffling holes 414 according to the characteristics of the noise spectrum. Moreover, because the supercharger recirculation valve 60 is externally arranged, the size of the supercharger compressor housing is not limited, and the volume and the number of the resonant cavities can be designed more freely. In addition, one or more first partition plates 420 may be provided, so that more valve resonance chambers may be formed. Further, the first muffler 400 may further include a first silencing cover 450 protruded on a circumferential direction of an end portion of the first silencing body 410, and the first muffler 400 may be fixed to the valve seat body 110 by the first silencing cover 450.
In addition, as shown in fig. 7 to 8, the above-mentioned muffler structure may further include a second muffler 500 provided in the assembly cylinder of the muffler assembly 30, the second muffler 500 having one end communicating with the supercharger outlet duct 20 and the other end communicating with the valve inlet duct 200. Thus, after the high-pressure gas exits from the supercharger outlet pipe 20, the high-pressure gas can enter the second muffler 500 arranged in the muffler assembly 30 to perform sound attenuation and noise reduction, and the high-pressure gas can be conveyed to the valve inlet passage of the valve inlet pipe 200 and the valve cavity 102 of the valve seat body 110. That is, in order to solve the problem of the supercharger recirculation valve bleed noise, two mufflers are designed, one being a first muffler 400 disposed in the valve chamber of the valve seat body 110 and the other being a second muffler 500 disposed inside the muffler assembly 30. While muffler assembly 30 is relatively bulky, second muffler 500 may be a larger primary muffler disposed within muffler assembly 30 to better eliminate bleed noise.
As shown in fig. 9, the second muffler 500 may include a cylindrical second muffler body 510 disposed in the assembly cylinder of the muffler assembly 30, the second muffler body 510 is provided with a plurality of second muffling holes 515 and/or muffling ports 513, and a main resonant cavity is defined between the second muffler body 510 and the inner wall of the assembly cylinder of the muffler assembly 30. Thus, the high-pressure gas entering the inner cavity of the second muffling body 510 can enter the main resonant cavity through the second muffling hole 515 or/and the muffling port 513 (which may refer to a muffling hole with a larger aperture) to perform resonance muffling. Moreover, the second muffler 500 may further include an annular partition plate assembly protruding from the circumferential surface of the second muffler body 510 in the circumferential direction of the second muffler body 510, the partition plate assembly partitioning the main resonance chamber into a plurality of sub-resonance chambers (502, 504, 506). By providing a baffle assembly on the second muffler body 510 to partition the main resonance chamber into a plurality of sub-resonance chambers (502, 504, 506), noise of a wide frequency can be eliminated.
Further, in an embodiment, the partition assembly at least includes a fourth partition 520 and a fifth partition 530 protruding from the second muffler 510, the fourth partition 520 and the fifth partition 530 partition the main resonant cavity into three sub-resonant cavities (502, 504, 506), the fourth partition 520 and the fifth partition 530 partition the second muffler 510 into three cylindrical muffler sections (512, 514, 516), each of the muffler sections corresponds to one of the sub-resonant cavities, a plurality of second muffling holes 515 are opened on the middle muffler section, and muffling holes 513 are opened on the muffler sections on both sides. That is, the second silencer 510 can be divided into three sections by the fourth partition 520 and the fifth partition 530, so that the middle section of the silencer forms a perforated silencing structure, and the two sections of silencers on both sides form an inserted pipe silencing structure, i.e., the second silencer 500 can be formed as a combination of an inserted pipe silencer and a perforated silencer. Furthermore, the volume of the three sub-resonance chambers (502, 504, 506) can be adjusted by adjusting the position of the fourth partition 520 and the fifth partition 530, and generally according to the characteristics of the actual noise spectrum, the volume of the resonance chambers and the aperture and number of the second muffling holes (or muffling ports) can be adjusted, and meanwhile, the muffling structure (i.e. the inserted tube muffling structure or the perforated muffling structure) of each resonance chamber can be adjusted.
In addition, the baffle plate assembly can also comprise three or more baffle plates, so that more sub-resonant cavities can be formed. Further, the second muffler 500 may further include a second muffler cover 540 protruded on the circumferential direction of the end of the second muffler body 510, and the second muffler 500 may be fixed to the muffler assembly 30 by the second muffler cover 540. In addition, main muffler, muffler subassembly and muffler subassembly outlet duct (being the valve intake pipe) all can adopt plastic materials to make, and three original paper adopts the friction welding technology to link together, and the connected mode is simple reliable.
According to the technical scheme provided by the invention, the self-circulation of high-pressure gas of the turbocharger can be realized by arranging the supercharger recirculation valve for connecting the silencer assembly and the turbocharger, so that the surge noise can be reduced or eliminated, and the service life of the turbocharger is prolonged. Moreover, the supercharger recirculation valve is arranged outside the turbocharger, so that enough space for arranging the supercharger recirculation valve and the silencer structure thereof can be ensured, the arrangement mode of the silencer structure can be diversified, the broadband silencing effect can be realized, and the air leakage noise effect of the supercharger recirculation valve is better. Moreover, by arranging the supercharger recirculation valve externally, enough space for arranging a first silencer and a second silencer can be ensured, the first silencer is arranged in the valve seat cavity, belongs to an auxiliary silencer and can eliminate partial air leakage noise; the second muffler is arranged inside the muffler assembly, and because the arrangement space is large, the arrangement mode of the mufflers can be diversified (the number and the size of cavities, the aperture and the number of perforations (muffling holes), the insertion tube type muffling structure and the perforated muffling structure are flexibly combined), the muffling effect of a wide frequency band can be realized, the air leakage noise effect of the supercharger recirculation valve is better, and the air leakage noise of the supercharger recirculation valve can be basically controlled at an acceptable level by using the two mufflers.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A supercharger recirculation valve is characterized by comprising a circulation valve structure arranged on a silencer assembly and a silencer structure connected with the circulation valve structure;
the circulating valve structure comprises a valve air inlet pipe communicated with the silencer assembly, a valve main body communicated with the valve air inlet pipe, and a valve air release pipe communicated with the valve main body, wherein the valve air release pipe is communicated with a supercharger air inlet pipe;
the valve main body comprises a valve seat body which is connected with the valve air inlet pipe and is provided with a valve cavity, and a valve structure which is movably arranged in the valve cavity; a valve air inlet channel is arranged in the valve air inlet pipe, and a valve air outlet channel is arranged in the valve air outlet pipe; when the valve structure is opened, the valve air inlet channel is communicated with the valve air outlet channel through the valve cavity;
the muffler structure comprises a first muffler arranged in the valve cavity, and the first muffler separates the valve inlet channel and the valve outlet channel;
the first silencer comprises a cylindrical first silencer body arranged in the valve cavity, and a valve resonant cavity is formed between the first silencer body and the inner wall surface of the valve cavity;
a plurality of first silencing holes are formed in the circumferential surface of the first silencing body, and the valve structure part is positioned in the first silencing body; when the valve structure is opened, the valve air inlet channel and the valve air outlet channel are communicated through the first silencing hole;
the first silencer also comprises an annular first partition plate which is arranged on the circumferential surface of the first silencer body in a protruding mode along the circumferential direction of the first silencer body, and a second partition plate and a third partition plate which are arranged on the circumferential surface of the first silencer body in a protruding mode along the axial direction of the first silencer body;
the first baffle, the second baffle reaches the third baffle all with the internal face contact of valve chamber, the first baffle, the second baffle reaches the third baffle with enclose between the internal face of valve chamber and establish and form first valve resonant cavity and second valve resonant cavity, first valve resonant cavity with the second valve resonant cavity passes through the second baffle with the third baffle with the valve passageway of leaking gas separates.
2. The supercharger recirculation valve of claim 1, wherein the valve structure comprises a stationary shaft disposed on the valve seat body, a valve body disposed at one end of the stationary shaft, and a driving structure disposed on the valve seat body for driving the stationary shaft or the valve body to reciprocate, the valve body being disposed in the first muffler body for blocking or unblocking the valve chamber.
3. The supercharger recirculation valve of claim 1, wherein the valve inlet conduit is coupled to a bottom end of the valve seat body, the valve structure is disposed at a top end of the valve seat body, and the valve outlet conduit is coupled to a side of the valve seat body;
the valve chamber is opened in the cylindrical cavity in valve seat body middle part, valve inlet channel communicate in the valve chamber bottom, the valve is lost circulation the passageway and is communicated in the valve chamber lateral part.
4. The supercharger recirculation valve of any one of claims 1-3, wherein the muffler structure further comprises a second muffler disposed in an assembly barrel of a muffler assembly, the second muffler having one end in communication with a supercharger outlet duct and another end in communication with the valve inlet duct.
5. The supercharger recirculation valve according to claim 4, wherein the second muffler comprises a cylindrical second muffler body disposed in a component cylinder of the muffler component, the second muffler body defines a plurality of second muffling holes or/and muffling ports, and a main resonant cavity is defined between the second muffler body and an inner wall of the component cylinder of the muffler component.
6. The supercharger recirculation valve of claim 5, wherein the second muffler further comprises an annular baffle assembly protruding circumferentially around the second muffler body on a circumferential surface of the second muffler body, the baffle assembly separating the main resonant cavity into a plurality of sub-resonant cavities.
7. The supercharger recirculation valve according to claim 6, wherein the partition assembly comprises at least a fourth partition and a fifth partition protruding from the second muffler body, the fourth partition and the fifth partition divide the main resonant cavity into three sub-resonant cavities, the fourth partition and the fifth partition divide the second muffler body into three cylindrical muffler sections, each of the muffler sections corresponds to one of the sub-resonant cavities, the middle muffler section has a plurality of the second muffler holes, and the muffler ports are disposed on the muffler sections on two sides.
8. A turbocharger comprising a supercharger body, a supercharger inlet pipe and a supercharger outlet pipe connected to both ends of the supercharger body, respectively, and a supercharger recirculation valve according to any one of claims 1 to 7 communicating with the supercharger inlet pipe, wherein the supercharger outlet pipe communicates with one end of a muffler assembly, and the supercharger recirculation valve communicates with the other end of the muffler assembly.
CN201910474479.5A 2019-05-31 2019-05-31 Supercharger recirculation valve and turbocharger Active CN110067641B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677891A (en) * 2015-10-08 2017-05-17 霍尼韦尔国际公司 Compressor recirculation valve with noise-suppressing muffler
CN206221099U (en) * 2016-10-25 2017-06-06 上汽通用五菱汽车股份有限公司 A kind of electronics recycle valve mounting structure for pipeline
CN108457891A (en) * 2017-02-22 2018-08-28 盖瑞特交通公司 Compressor recycle valve with the valve seat construction for inhibiting noise when valve is opened
US10132232B2 (en) * 2016-02-12 2018-11-20 Mazda Motor Corporation Supercharging device for engine
CN208364245U (en) * 2018-03-15 2019-01-11 广州汽车集团股份有限公司 Air inlet recycles valve seat, inlet manifold and engine
CN109424480A (en) * 2017-08-25 2019-03-05 马自达汽车株式会社 The air inlet and outlet device of vehicle motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106677891A (en) * 2015-10-08 2017-05-17 霍尼韦尔国际公司 Compressor recirculation valve with noise-suppressing muffler
US10132232B2 (en) * 2016-02-12 2018-11-20 Mazda Motor Corporation Supercharging device for engine
CN206221099U (en) * 2016-10-25 2017-06-06 上汽通用五菱汽车股份有限公司 A kind of electronics recycle valve mounting structure for pipeline
CN108457891A (en) * 2017-02-22 2018-08-28 盖瑞特交通公司 Compressor recycle valve with the valve seat construction for inhibiting noise when valve is opened
CN109424480A (en) * 2017-08-25 2019-03-05 马自达汽车株式会社 The air inlet and outlet device of vehicle motor
CN208364245U (en) * 2018-03-15 2019-01-11 广州汽车集团股份有限公司 Air inlet recycles valve seat, inlet manifold and engine

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