CN202326084U - Air inlet muffler for air compressor of light-weight truck air brake system - Google Patents

Air inlet muffler for air compressor of light-weight truck air brake system Download PDF

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Publication number
CN202326084U
CN202326084U CN2011204324092U CN201120432409U CN202326084U CN 202326084 U CN202326084 U CN 202326084U CN 2011204324092 U CN2011204324092 U CN 2011204324092U CN 201120432409 U CN201120432409 U CN 201120432409U CN 202326084 U CN202326084 U CN 202326084U
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CN
China
Prior art keywords
air
muffler body
diameter
air inlet
muffler
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011204324092U
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Chinese (zh)
Inventor
陈刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN2011204324092U priority Critical patent/CN202326084U/en
Application granted granted Critical
Publication of CN202326084U publication Critical patent/CN202326084U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an air inlet muffler for an air compressor of a light-weight truck air brake system. The air inlet muffler comprises a cylindrical muffler body, wherein one end of the muffler body is provided with an air inlet, and the other end of the muffler body is provided with an air outlet; partition plates are arranged at positions in the muffler body, which are close to the two ends, and used for partitioning the inner part of the muffler body into three parts, namely an air inlet cavity, a treatment cavity and an air outlet cavity; air holes are uniformly formed in the partition plates; and a quarter wavelength tube is communicated to one side wall of the treatment cavity adjacent to the air inlet cavity and is an L-shaped tube. The muffler is arranged between an air inlet tube of the air compressor and an air inlet tube of a pressurizer; the structures of the tubes are expanded, so that the reflection performance and the interference performance of sound wave are changed; and the quarter wavelength tube can eliminate noise with specific frequency by using a sound wave reflection rule.

Description

The intake silencer that is used for light truck air braking system air compressor
Technical field
The utility model belongs to Automobile air braking system technical field, is specifically related to be used for the intake silencer of light truck air braking system air compressor.
Background technique
The gas handling system noise is one of car load noise constituent element, is one of important noise source and brake vehicle gas handling system air compressor noise for gas.And compressor noise is handled bad, can cause influences such as subjective sensation air inlet oppressiveness, air inlet abnormal sound to gas handling system, image product is caused have a strong impact on.At present, for light truck compressor operating noise, general processing method is decay of sky filter and overstriking compressor inleting pipe road, separately its noise behavior is not studied and is eliminated, and it is unsatisfactory to do the noise elimination effect like this.For the big type of part compressor noise energy level, this method can not play good action.Therefore, the compressor intake silencer of designing a kind of special use is the light truck Development Trend to reduce the compressor induction noise.
Summary of the invention
To the bigger problem of inflating pump noise in the light truck air inlet system, the utility model adopts air compressor intake silencer assembly in the compressor inleting pipe road, a kind of intake silencer that is used for light truck air braking system air compressor promptly is provided.
The concrete technical solution of the utility model is following:
The intake silencer that is used for light truck air braking system air compressor comprises the muffler body of cylindrical tube shape, and an end of muffler body is a suction port, and the other end is the air outlet; And the diameter of muffler body is greater than suction port, and simultaneously greater than the air outlet diameter, the three constitutes expansion chamber; Place, nearly two ends is provided with dividing plate respectively in the muffler body, and dividing plate is with being divided into air-inlet cavity, process chamber and outlet chamber three parts in the muffler body; Be laid with pore on the dividing plate; Be communicated with the quarter-wave long tube on process chamber one sidewall adjacent with air-inlet cavity, the quarter-wave long tube is L shaped pipe.
The axial length of said air-inlet cavity and outlet chamber equates that the length of air-inlet cavity and the length of outlet chamber are 1/5th of process chamber axial length.
The diameter of said muffler body is 60~70 ㎜; The suction port of muffler body and air outlet equal diameters, and be 1/3rd of muffler body diameter.
The diameter of said quarter-wave long tube is the diameter 2/3rds of muffler body, and length equals compressor operating noise wavelength's 1/4.
Hole diameter on the said dividing plate is 6 ㎜, and the percent opening of pore is 10~12% on the dividing plate.
The utility model silencing apparatus is arranged between air compressor suction tude and the pressurized machine suction tude, the reflection of expanding duct structural change sound wave and interference performance, and the quarter-wave long tube structure utilizes the acoustic reflection rule can eliminate the noise of CF.
The compressor intake silencer of the utility model application testing on corresponding vehicle; The using effect of compressor intake silencer is obvious; Make the noise of gas handling system 267Hz, 275Hz and 451Hz Frequency point obviously reduce, the gas handling system noise has reduced 0.5dB~1.0 dB.The utility model silencing apparatus satisfies performance requirement.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the perforated plate structural representation.
Fig. 3 is the utility model user mode figure.
Sequence number among the last figure: suction port 1, dividing plate 2, muffler body 3, quarter-wave long tube 4, air outlet 5, air compressor 6, air cleaner assy 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done explanation further through embodiment.
Embodiment:
Referring to Fig. 1; The intake silencer that is used for light truck air braking system air compressor comprises the muffler body 3 of cylindrical tube shape, and an end of muffler body 3 is a suction port 1, and the other end is air outlet 5; Place, nearly two ends is provided with dividing plate 2 respectively in the muffler body 3; Dividing plate 2 is with being divided into air-inlet cavity, process chamber and outlet chamber three parts in the muffler body, the axial length of air-inlet cavity and outlet chamber equates that the length of air-inlet cavity and the length of outlet chamber are 1/5th of process chamber axial length.Be laid with pore 2.1 on the dividing plate 2, the diameter of pore is 6 ㎜, and the percent opening of dividing plate 2 is 11%, sees Fig. 2.Be communicated with L shaped quarter-wave long tube 4 on process chamber one sidewall adjacent with outlet chamber.
The diameter of muffler body 3 is 60 ㎜, its suction port 1 and air outlet 5 equal diameters, and be 1/3rd of muffler body diameter; The diameter of quarter-wave long tube 4 is the diameter 2/3rds of muffler body 3.
During use, see Fig. 3, the suction port 1 of this intake silencer and air compressor 6 fixedly are communicated with through hose clamp, and the air outlet 5 of intake silencer fixedly is communicated with air cleaner assy 7 hose clamps.
During work, muffler body 3 diameters are greater than suction port 1, air outlet 5 diameters, and triplicity forms the expansion chamber structure, noise through the time obtain decay.When noise passed through the pore of dividing plate 2, owing to the variation that all has the sound channel sectional area at each pore place, each pore place all was equivalent to a small-sized expanding duct structure.1/4 wavelength tubular construction utilizes the acoustic reflection rule can eliminate the noise of CF, but tube length needs to calculate according to wavelength.Finally, the noise that transmits from the brake system air compressor is obviously reduced.

Claims (5)

1. be used for the intake silencer of light truck air braking system air compressor, it is characterized in that: comprise the muffler body of cylindrical tube shape, an end of muffler body is a suction port, and the other end is the air outlet; And the diameter of muffler body is greater than suction port, and simultaneously greater than the air outlet diameter, the three constitutes expansion chamber; Place, nearly two ends is provided with dividing plate respectively in the muffler body, and dividing plate is with being divided into air-inlet cavity, process chamber and outlet chamber three parts in the muffler body; Be laid with pore on the dividing plate; Be communicated with the quarter-wave long tube on process chamber one sidewall adjacent with air-inlet cavity, the quarter-wave long tube is L shaped pipe.
2. the intake silencer that is used for light truck air braking system air compressor according to claim 1; It is characterized in that: the axial length of said air-inlet cavity and outlet chamber equates that the length of air-inlet cavity and the length of outlet chamber are 1/5th of process chamber axial length.
3. the intake silencer that is used for light truck air braking system air compressor according to claim 1 is characterized in that: the diameter of said muffler body is 60~70 ㎜; The suction port of muffler body and air outlet equal diameters, and be 1/3rd of muffler body diameter.
4. the intake silencer that is used for light truck air braking system air compressor according to claim 1; It is characterized in that: the diameter of said quarter-wave long tube is the diameter 2/3rds of muffler body, and length equals compressor operating noise wavelength's 1/4.
5. the intake silencer that is used for light truck air braking system air compressor according to claim 1 is characterized in that: the hole diameter on the said dividing plate is 6 ㎜, and the percent opening of pore is 10~12% on the dividing plate.
CN2011204324092U 2011-11-04 2011-11-04 Air inlet muffler for air compressor of light-weight truck air brake system Expired - Fee Related CN202326084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204324092U CN202326084U (en) 2011-11-04 2011-11-04 Air inlet muffler for air compressor of light-weight truck air brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204324092U CN202326084U (en) 2011-11-04 2011-11-04 Air inlet muffler for air compressor of light-weight truck air brake system

Publications (1)

Publication Number Publication Date
CN202326084U true CN202326084U (en) 2012-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204324092U Expired - Fee Related CN202326084U (en) 2011-11-04 2011-11-04 Air inlet muffler for air compressor of light-weight truck air brake system

Country Status (1)

Country Link
CN (1) CN202326084U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367791A (en) * 2011-11-04 2012-03-07 安徽江淮汽车股份有限公司 Intake silencer used in air compressor of light truck pneumatic brake system
CN103410794A (en) * 2013-08-13 2013-11-27 江苏大学 Wavelength adjustable noise reduction tube of centrifugal pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367791A (en) * 2011-11-04 2012-03-07 安徽江淮汽车股份有限公司 Intake silencer used in air compressor of light truck pneumatic brake system
CN103410794A (en) * 2013-08-13 2013-11-27 江苏大学 Wavelength adjustable noise reduction tube of centrifugal pump
CN103410794B (en) * 2013-08-13 2015-10-28 江苏大学 A kind of wavelength adjustable noise reduction tube of centrifugal pump

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022

Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd

Address before: The East Road in Baohe District of Hefei city of Anhui Province, No. 176 230022

Patentee before: Anhui Jianghuai Automobile Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120711

Termination date: 20201104