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8177024 Accoustic attenuation device for an intake line of a combustion engine and intake line incorporating same  
The present invention relates to an acoustic attenuation device for an intake line of an internal combustion engine and to an intake line such as this incorporating same. An acoustic attenuation...
8176889 Intake manifold for engine  
An intake manifold for an engine includes a plurality of intake distribution pipes arranged in a side-by-side relation to one another; an intake inlet pipe provided in an end wall and arranged in a...
8118013 Resonator and crankcase ventilation system for internal combustion engine  
The present invention provides a crankcase ventilation system and resonator for a turbocharged internal combustion engine assembly. The resonator, designed for intake noise reduction, is mounted to...
8097055 System for treating exhaust gas  
A system for treating exhaust gas from an engine is disclosed. The system may include a housing with a first longitudinal axis, an inlet port, and an outlet port. The housing may define a first...
8092563 System for treating exhaust gas  
A system for treating exhaust gas from an engine is disclosed. The system may include a housing having an inlet port and an outlet port and defining a flow path therebetween. A fluid treatment...
8082898 Resonator  
A resonator is provided with a neck portion and a resonator main body. The resonator main body includes a main volume chamber communicated with an air intake duct of an internal combustion engine...
8083822 System for treating exhaust gas  
A system for treating exhaust gas from an engine is disclosed. The system may include a housing, a fluid treatment element, and a conduit. The housing has an inlet and an outlet port and defines a...
8033359 Intake sound adjusting device  
An intake sound adjusting device includes an intake passage, a tubular branch passage branched from the intake passage, and an oscillating member disposed within the branch passage, in which the...
8011469 Tunable sound transmission device for a motor vehicle  
A tunable sound transmission device for transmitting an engine rumble sound into an interior of a motor vehicle includes a transmission line having a first end in acoustic communication with an air...
8001945 Resonator for an intake system of a motor vehicle  
A resonator for an air intake system of a motor vehicle has a housing and at least one resonator chamber enclosed by the housing. At least one air intake opening for fresh air is provided in the...
7992676 Compact tuned acoustic attenuation device  
A tuned acoustic attenuation device includes a housing defining a chamber within with air inlet and outlet channels opening into the chamber. An acoustic chamber or chambers are arranged on an...
7975802 Intake air sound generation device  
An intake air sound generation device 40 for an internal combustion engine 2, comprises an introduction tube 41 which is connected to an intake passage 30 of the internal combustion engine 2 to...
RE42490 Device and method for amplifying suction noise  
A device for amplifying the suction noise of a vehicle is disclosed. The device comprises an intake duct, a connecting pipe and a composite membrane. The intake duct is for feeding air to an engine...
7967106 Air induction sound modification system for internal combustion engine  
An air induction sound modification system for an internal combustion engine includes a multi-frequency sound suppression unit having Helmholtz resonators and a multi-component expansion chamber. A...
7950363 Air inlet system for internal combustion engine  
An air inlet system for an internal combustion engine includes an air inlet duct for drawing charge air into a charge air processor, and an intake manifold system leading from the charge air...
7946383 Acoustic load mitigator  
A system for reducing an acoustic load of a fluid flow includes a first pipe. The first pipe includes a first end and a second end and a first aperture and a second aperture, the first and second...
7938225 Clean air duct noise silencing  
An air intake system for reducing air induction noise, which includes an air duct housing that has a lower shell and an upper shell, each having a first end and a second end and a plurality of...
7938227 Variable resonation chamber valve  
A variable resonation chamber valve includes an outer valve seat and a rotatable plunger. The outer valve seat defines an inlet opening into an associated resonation chamber. The rotatable plunger...
7934582 Engine silencing and vibration reduction system and method  
A noise and vibration reduction system for an engine affixed to a body and a method for reducing vibrations in the body produced by that engine during operation. The present invention is...
7934581 Broadband noise resonator  
An apparatus comprising includes a conduit portion having a conduit inner surface and a conduit outer surface, and a plurality of chambers in fluid communication with the conduit portion. The...
7921963 Internal combustion engine equipped with intake silencer  
An intake system for an internal combustion engine has an intake silencer 30 provided with an expansion chamber 33, and a connecting pipe 40 having an inlet 46 through which air from the expansion...
7849680 Diesel particulate filter system for auxiliary power units  
A system for reducing the emissions produced by an engine affixed to a body during operation and reducing noise and vibration. The present invention is particularly related to a small form factor...
7845466 Sound generator with structurally and acoustically coupled sound radiation panel and method for manufacturing the same  
A sound generator for a vehicle is provided, including a hollow drum having a sound radiation panel structurally and acoustically coupled thereto. The drum has an aperture formed in an outer wall...
7798286 Exhaust muffler having a horizontally extending sound attenuation chamber  
A muffler for reducing the sounds of combustion gases exhausted from an internal combustion engine. The muffler including an elongated fluid passage extending between an inlet and an outlet such...
7798120 Variable air intake device for internal combustion engine  
A pair of intake collectors (1A, 1B) separated by a partition (4A) aspirates air into each cylinder of a multi-cylinder internal combustion engine via branch pipes (3A-3F). A valve (8A, 8B) which...
7793633 Switching resonance intake system for an internal combustion engine  
A switching resonance intake system is provided an internal combustion engine with a first and a second cylinder bank. The cylinder banks are each coordinated with a resonance container with a...
7779822 Intake assembly with integral resonators  
An intake assembly, such as a supercharger assembly, is provided for an internal combustion engine. The intake assembly includes a housing having a wall defining an inlet passage through which...
7757808 Noise reduction system  
A noise reduction system for a device having a noise generating subsystem includes a Helmholtz resonator and a controller. The Helmholtz resonator is disposed in fluid communication with the noise...
7717230 Device and method for amplifying suction noise  
A device for amplifying the suction noise of a vehicle is disclosed. The device comprises an intake duct, a connecting pipe and a composite membrane. The intake duct is for feeding air to an engine...
7708113 Variable frequency sound attenuator for rotating devices  
A rotatable sound attenuation device is provided comprising a central portion rotatable about a first axis, a radial portion extending outwardly from the central portion and a chamber having a...
7690478 Continuously variable tuned resonator  
A resonator for a vehicle air intake system is disclosed, wherein the resonator is variable tuned to militate against the emission of sound waves caused by the engine and other sources at a wide...
7658263 Device for noise transmission in a motor vehicle  
A device for noise transmission of an intake system of an internal combustion engine to the interior of a motor vehicle has a transmission line having an inlet at a first end and an exit provided...
7621370 Sound increase apparatus  
A sound increase apparatus includes a partition wall adapted to divide an engine room for defining a first engine room space that is located on a side of a dash panel and a second engine room space...
7614380 Intake device for a motorcycle  
To provide an intake system of a motorcycle, which is capable of attenuating intake noise efficiently, and facilitating arrangement of resonators. An air cleaner includes an air cleaner case having...
7562646 Air-intake device for internal combustion engine having noise reduction mechanism  
An air-intake device having a noise reduction mechanism includes a surge tank connected to an intake manifold for introducing intake air into an internal combustion engine, an air duct connected to...
7556123 Muffler duct  
In a muffler duct including a duct body and a resonance box, the inside of the duct body and the inside of the resonance box are made to communicate directly with each other not through a...
7556010 Multicylinder internal combustion engine with resonator  
A multicylinder internal combustion engine E has a cylinder head 2; a cylinder head cover 3; an intake manifold 20 having a header body 21 disposed right above an engine body and intake runners 22;...
7540353 Resonator  
A resonator is arranged in an intake system including a pipe section for partitioning an intake port from an intake passage that communicates the intake port with a combustion chamber of an engine,...
7530341 Intake system  
An intake system for an internal combustion engine has an intake conduit of thermoplastic material provided with an intake socket having an annular collar. At least one acoustic element is...
7520258 Air cleaner intake duct  
An air cleaner intake duct includes a first pipe for receiving intake air and a second pipe that encloses the first pipe. A space is defined between the first pipe and the second pipe. The duct...
7497196 Intake assembly having Helmholtz resonators  
An intake assembly operable to communicate intake air to an internal combustion engine is provided. The intake assembly includes an inlet adapter defining a flow conduit through which the intake...
7487755 Air-intake device for internal combustion engine  
For a V-type engine which has an independent air-intake system for each one of banks, a vibration plate unit is disposed in the interior of a resonance conduit for obtaining the beneficial effects...
7484491 Air induction system with resonator bypass valve  
An air induction system for a vehicle is disclosed, wherein the air induction system includes a resonator bypass valve for control of an air flow to an engine and engine induction noise levels...
7469762 Exterior air intake system for an engine compartment of a vehicle  
The invention provides for an exterior air intake system in an engine compartment of a vehicle wherein the exterior air can be guided smoothly into an air cleaner. The engine compartment of a...
7464788 Apparatus for transmitting sound in a motor vehicle  
An apparatus for transmitting sound in a motor vehicle having a housing (1) with an inner partition (2), which together define two separate subspaces (3, 4). A transmission valve (6) which...
7451733 Air duct orifice for reducing low frequency noise  
An air duct orifice includes an adapter pipe inserted in and attached to an end portion of an air duct connected to an engine side; an orifice pipe protruding from an outer surface of the adapter...
7448353 Intake device of internal combustion engine  
A resonator 13 is provided including a resonating body 13 which is vibrated by intake air pulsation in an intake system 5, a volume chamber 14 connected through the resonating body 13 to the intake...
7441527 Air suction device  
An air suction device is provided with an air suction system having at least one capacity-enlarged portion, a compression pump compressing air in synchronization with operation of an engine, a...
7424880 Intake system of engine  
The present invention provides an intake system of an engine, having the engine mounted on a vehicle, which has a crankshaft oriented in a widthwise direction of the vehicle, and an intake box...
7415957 Vehicular intake system  
A vehicular air intake system including a resonator for eliminate the possibility of dust and water droplets collecting in the resonator. An end portion of an air intake duct is branched into a...
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