Exhaust sound quality adjusting device and matching method

• Main Authors: ZHENG SIFA, ZUO JIAJIA, TAO XIAOLEI, LIU ZHONGDA
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; SOUND-PRODUCING DEVICES; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

The invention discloses an exhaust sound quality adjusting device. The exhaust sound quality adjusting device is arranged in an exhaust system of an automobile engine. The exhaust system comprises an exhaust manifold, a three-way catalyst connected to the exhaust manifold, a silencer connected to the three-way catalyst and a tail pipe connected to the silencer, wherein the exhaust manifold, the three-way catalyst, the silencer and the tail pipe are successively connected, and the exhaust manifold is connected to the automobile engine; the exhaust sound quality adjusting device comprises an exhaust sound producing drum connected between the three-way catalyst and the silencer through a valve for adjusting the sound quality of exhaust noise and a first guide pipe connected to the exhaust sound producing drum, wherein the first guide pipe at least communicates with the tail pipe. By arranging the exhaust sound quality adjusting device, characteristic sound quality of the exhaust noise of the mobile engine can be