SILENCER FOR A VEHICLE CAPABLE OF OFFERING THE HIGH NOISE REDUCTION EFFECT THROUGH A SOUND TUNING OF AN INTERNAL STRUCTURE

摘要

PURPOSE: A silencer for a vehicle is provided to offer the high noise reduction effect and guarantee a proper back-pressure trip.;CONSTITUTION: A silencer for a vehicle comprises a front muffler and a rear muffler. The front muffler comprises an intake and exhaust pipe(102), a body of the front muffler(101) and a sound absorbing material(104). The intake and exhaust pipe is connected to an intake pipe of the rear muffler. The front muffler forms a resonator space surrounding the intake and exhaust pipe. The sound absorbing material is filled in the resonator space. The exhaust noise and the flow noise are decreased by an operation between resonator holes(102a) and a resonator space before the exhaust gas inflowing to the intake and exhaust pipe discharges from an intake and exhaust pipe outlet(102-Out). The rear muffler comprises a first barrier, a second barrier, a first space, a resonator hole and a second resonator. The first and second barriers are successively formed inside the body of the muffler. The first space is formed between one side of end plate and the first barrier. The resonator hole is formed in the outer surface of the exhaust line placed in the third space. The second resonator surrounding the resonator hole forms a second resonator spaces.;COPYRIGHT KIPO 2012