FIELD: mechanical engineering; internal combustion engines with noise suppressors in intake and fuel feed systems. SUBSTANCE: system has air cleaner 1 to which intake pipe and air supply branch pipe are connected. Air supply branch pipe has inlet portion 3 accommodating coaxially arranged noise suppressor forming through ring clearance 4. Suppressor is made in form of quarter-wave resonator 7 located in inlet portion 3 of branch pipe. Length of resonator is equal to half the length of branch pipe, neck 8 of resonator 7 is located in middle of branch pipe, and bottom 9 of resonator is furnished with fairing 10 projecting beyond the plane of cross section of branch pipe entry cut 5. Coupling portion 6 of branch pipe is connected to chamber of air cleaner 1. Second quarter-wave resonator can be placed inside resonator 7, length of second resonator being equal to quarter of branch pipe length. Different design versions are available. EFFECT: improved efficiency and reliability of noise suppression. 9 cl, 11 dwg
| Title | Year | Author | Number |
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