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Matches 1 - 50 out of 14,887

Document Document Title
WO/2019/105774A1
The invention relates to an ultrasonic sensor (1) for measuring a signal propagation time in a liquid, in particular in an aqueous urea solution, for the purpose of determining the quality of the liquid, comprising a sensor unit (2) with...  
WO/2019/101297A1
The invention relates to a noise generating device (20) for a vehicle exhaust system in a motor vehicle having a housing (22) and a noise generator arranged inside the housing (22). The housing (22) has an upper part (26), a lower part (...  
WO/2019/099656A1
A method of manufacturing a subassembly for an exhaust treatment device includes providing a metal sheet including first and second apertures having respective first and second sizes, and a one-piece pipe including first and second linea...  
WO/2019/091542A1
The present invention relates to an exhaust gas silencer comprising a central pipe (46) having an inlet end and an outlet end (42), a silencer housing leaving a silencer chamber between itself and the central pipe (46), and at least one ...  
WO/2019/092038A1
The invention relates to a device (1, 1', 1") for reducing airborne and structure-borne sound having at least one resonator chamber (2, 13, 14, 20, 21, 22, 23) arranged between a supply (7, 7") and a discharge (8, 8"), wherein the resona...  
WO/2019/086539A1
In an exhaust gas system (1) of a combustion device, with: a sound absorber (2); a catalytic converter (3) for treating a pollutant contained in the exhaust gas; a nozzle device (7) installed upstream of the catalytic converter (3) in th...  
WO/2019/089306A1
A snap-action valve assembly for an exhaust system and a method for manufacturing the same is provided. The valve assembly includes a first conduit and a second conduit that is partially received in the first conduit. A valve flap is dis...  
WO/2019/081109A1
The invention relates to an internal combustion engine (1) with an exhaust gas system (2) for discharging exhaust gas of the internal combustion engine (1). The internal combustion engine (1) has a turbocharger comprising a turbine (3) a...  
WO/2019/080505A1
An active noise reduction method and system, and a new energy vehicle. The method comprises the following steps: obtaining the frequency of a high-frequency noise signal in an acoustic environment; constructing and generating a harmonic ...  
WO/2019/082598A1
The present invention improves exhaust gas purification efficiency by devising a catalyst unit fixation position and an exhaust gas flow direction. Provided is a muffler 30 having a box-shaped outer shell that comprises a front housing 3...  
WO/2019/063070A1
A loudspeaker arrangement includes an air-tight, rigid, thermo- conductive enclosure (103) with an aperture (115) and an outer surface, and a loudspeaker (101) air-tightly mounted in the aperture (115) to form a locked acoustic volume wi...  
WO/2019/058350A1
The present application discloses a silencer for a heating, ventilation, and air conditioning system comprising a silencing channel having an outlet and an inlet, such that airflow flows in from the inlet and flows out from the outlet, a...  
WO/2019/059942A1
A vehicle exhaust system includes a component housing defining an internal cavity, a first exhaust gas treatment element positioned within the internal cavity, a second exhaust gas treatment element positioned within the internal cavity ...  
WO/2019/042556A1
The invention relates to an exhaust gas system (12) for an internal combustion engine of a motor vehicle. Said exhaust gas system comprises a singular exhaust gas inlet line (16), two exhaust gas outlet lines (18) connected in an exhaust...  
WO/2019/045687A1
A mobile power generation system includes a trailer, a gas turbine housed inside the trailer, an electrical generator coupled to the gas turbine to generate electricity, an exhaust silencer system configured to receive exhaust has from t...  
WO/2019/029880A1
The invention relates to a device (1) for mixture preparation for an exhaust-gas aftertreatment system, comprising an injection device (2) for injecting a liquid reducing agent (3) into an exhaust-gas flow, and comprising a mixing pipe (...  
WO/2019/032681A1
Provided in the present invention are a muffler (2)for use in a refrigerating device and a refrigerating device. The muffler comprises an outer casing (23), an inner wall (24), and a sound absorbing material (26) provided between the inn...  
WO/2019/025774A1
Sound and/or vibration in a vehicle (10) is enhanced by using at least one active powertrain mount (24, 26) to selectively generate vibrations in the vehicle body (12), at least some of which are audible to a person in a cabin of the veh...  
WO/2019/018673A1
An acoustic damper includes a low porosity layer section and a housing. The low porosity layer section is formed in a liner of a gas turbine combustor and has an arrangement of elongated generally S-shaped slots formed therein. The housi...  
WO/2019/015342A1
Disclosed is a silent mobile electric supply vehicle, comprising an automobile tractor unit (100), a semi-trailer (200) and a container electric station (300), wherein the automobile tractor unit (100) is connected to the semi-trailer (2...  
WO/2019/007700A1
The invention relates to a method for operating a motor vehicle noise cancellation system (1) comprising a Helmholtz resonator (2) with a Helmholtz chamber (13), a neck (3), and a connection opening (4); a speaker (5) within the Helmholt...  
WO/2019/009268A1
A valve device (10) is disposed in an exhaust passageway (9b) of a muffler (1) and is provided with: a valve body (20) which opens and closes the exhaust passageway (9b) depending on the exhaust pressure of exhaust gas (G); an elastic me...  
WO/2018/234826A1
Apparatus for modifying acoustic transmission comprises an array of structures arranged along a transmission path and each having a major axis and a minor axis, the structures being arranged such that a minor axis of each void or structu...  
WO/2018/234212A1
The invention relates to a loudspeaker system (1) for a motor vehicle, having a loudspeaker housing (1.1), which comprises a connection opening (1.2) for acoustically connecting the loudspeaker housing (1.1) to the environment or to an i...  
WO/2018/234141A1
The invention relates to an exhaust-gas aftertreatment system for a spark-ignited internal combustion engine based on the Otto principle. The internal combustion engine is connected on the outlet side to an exhaust-gas system, wherein, i...  
WO/2018/235797A1
This sound insulation system comprises a tube structure having one or more open ends, and a sound insulation structure having an opening or a radiation surface, and satisfies the following expression (1) when the phase difference of rera...  
WO/2018/229371A1
The invention relates to a combustion gas exhaust line (20) comprising an outlet branch (27) comprising a loudspeaker (30), a Y-shaped tubular part (29) connecting the loudspeaker (30) to the outlet branch (27), characterised in that the...  
WO/2018/226818A2
An internal combustion engine includes an engine block including a cylinder and a muffler assembly configured to receive exhaust gases from the cylinder. The muffler assembly includes a housing defining an interior volume and including a...  
WO/2018/226626A1
A multi-stage mixer includes a multi-stage mixer inlet, a multi-stage mixer outlet, a first flow device, and a second flow device. The multi-stage mixer inlet is configured to receive exhaust gas. The multi-stage mixer outlet is configur...  
WO/2018/206917A1
In a method of manufacturing a hollow shelled component for an exhaust system, opposed longitudinal edge regions of a blank (50) of thin-gauge sheet metal are folded out of the plane of the blank in the same direction to produce flanges....  
WO/2018/199778A2
The invention relates to an energy efficiency solution for internal combustion engines, and particularly to a thermo-acoustic solution for exhaust systems, which is based on a heat recovery system, an active noise-cancellation system and...  
WO/2018/199778A3
The invention relates to an energy efficiency solution for internal combustion engines, and particularly to a thermo-acoustic solution for exhaust systems, which is based on a heat recovery system, an active noise-cancellation system and...  
WO/2018/199778A8
The invention relates to an energy efficiency solution for internal combustion engines, and particularly to a thermo-acoustic solution for exhaust systems, which is based on a heat recovery system, an active noise-cancellation system and...  
WO/2018/197741A1
The noise attenuator (1) for an exhaust system of an internal combustion engine (20) comprises a casing (2), an inner wall (3) defining a cylindrical space within the casing (2), an inner pipe (4) that is arranged coaxially with the inne...  
WO/2018/192891A1
The invention relates to an exhaust flap (11) for an exhaust system (4) of a motor vehicle (1) which has an internal combustion engine (3) and at least one electronic computing device (16) for regulating the internal combustion engine (3...  
WO/2018/185538A1
A muffler has a housing enclosing a plurality of chambers. A first flow path extends from an inlet to an outlet passing through a bypass chamber. A flow tube has a plurality of perforations being open to a chamber other than the bypass c...  
WO/2018/179037A1
An exhaust muffler comprising first and second pipes which penetrate through a casing or a partition wall partitioning the inside of the casing into a plurality of expansion chambers, and which are arranged with a downstream end of the f...  
WO/2018/182290A1
The present invention relates to a generator silencer and, more particularly, to a generator silencer capable of precipitating and discharging hazardous components of exhaust gas discharged from an emergency generator. A generator silenc...  
WO/2018/179036A1
Provided is an exhaust device for an internal combustion engine of a saddled vehicle, the exhaust device being disposed laterally outside a rear wheel so as to overlap the rear wheel in a side view and being configured such that exhaust ...  
WO/2018/180272A1
Provided is a saddle-type vehicle exhaust device comprising: an exhaust pipe 21; and a muffler 30 that is connected to the exhaust pipe 21. The muffler 30 includes: a muffler cylinder part 32; and a front cover 33 that closes a front ope...  
WO/2018/174174A1
The purpose of the present invention is to provide a sound-absorbing material that has an average sound absorption coefficient of at least 0.65 for frequencies within the range of 800–2000 Hz. This sound-absorbing material comprises a ...  
WO/2018/173388A1
Provided is an exhaust device for a vehicle in which the detection accuracy of an oxygen sensor can be maintained even when the outer shell of a muffler has a water-draining hole. In this exhaust device for a vehicle (1), which has a muf...  
WO/2018/174180A1
The present invention relates to a sound-absorbing material that comprises a fiber layer and that is characterized in that the fiber layer is at least 3 mm thick and has formed therein a plurality of holes that are not through holes and ...  
WO/2018/164699A1
The invention discloses systems and methods for enhancing the sound of vocal utterances of interest in an acoustically cluttered environment. The system generates canceling signals (sound suppression signals) for an ambient audio environ...  
WO/2018/161087A1
A firearm suppressor has a tube and a baffle stack carried within the tube. A first stack portion has a first inner volume defined by a first inner wall having a first diameter. A second stack portion has a second inner volume defined by...  
WO/2018/154031A1
This device (1) is provided for cleaning smoke removal equipment (2) having a globally planar free surface (2A) and through which smoke to be cleaned flows during the use of the smoke removal equipment. In order for this cleaning to be e...  
WO/2018/155072A1
Provided is an engine-powered working machine configured so as to enable a reduction in the temperature of exhaust gas when the exhaust gas is discharged to the outside from a muffler cover. A muffler 30 is mounted to the exhaust opening...  
WO/2018/144393A1
A multi-stage, torispherical drilled-hole dump device which mounts on the surface of an air cooled condenser (ACC) duct, and provides a compact and lightweight method for discharging steam into the duct by presenting a large surface area...  
WO/2018/140029A1
An aftertreatment component includes an inlet connector tube, an outlet connector tube, a chamber, a flow dissipater, and a substrate. The inlet connector tube receives exhaust gasses. The chamber is between the inlet connector tube and ...  
WO/2018/138691A1
The present invention relates to an exhaust emission system (100) for a two-wheeled vehicle (50). The exhaust emission system (100) comprises of an exhaust pipe (101) extending in a downward and rearward direction. The exhaust pipe (101)...  

Matches 1 - 50 out of 14,887