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Patent Searching and Data


Matches 601 - 650 out of 14,783

Document Document Title
WO/2004/022932A1
A muffler is disclosed . In the muffler a throttling device which is controlled by the energy of the airflow to be muffled is provided in a pipe line of the airflow which needs to be muffled. The muffler is adjusted by itself according t...  
WO2003056223A3
Disclosed is a sound absorbing device in a pipe duct (2), particularly a gas transporting port (2) of an internal combustion engine (1), comprising at least one bypass duct (5) running parallel to a main duct (6) in a sector of the pipe ...  
WO/2004/011783A2
Exhaust after-treatment system for the reduction of particulate, NOx, HC, CO, VOCs, nano-particle count and sulfur dioxide from diesel exhaust. System employs diesel oxidation catalyst (10), exhaust cooling system (70, 80), particulate c...  
WO/2004/007108A2
Hollow bodies for an air supply often prove unsatisfactory in terms of their sonic properties or their dirt accumulation behaviour. The invention relates to a sound-absorbing hollow body for an air supply, comprising a first external lay...  
WO/2003/103477A2
A sound attenuating system (2) is provided for pneumatically powered surgical instruments. In one aspect, the exhaust hose (70) is formed of at least two dissimilar materials to impede the transmission of vibrations or audible noise.  
WO/2003/102393A1
A diffuser apparatus (10) for facilitating a reduction in fluid pressure and suppression of noise. The apparatus comprises a tubular inner sleeve (12), a tubular muffler (26) and a tubular outer sleeve (20). The inner sleeve (12) defines...  
WO/2003/102917A1
A device for creating noise in a motor vehicle comprises a hollow body, which has an entry space (8) that, via an entry line (3), is connected to a gas-conducting part of an internal combustion engine (1) mounted in the motor vehicle, an...  
WO/2003/101780A1
The invention relates to a device for sonic configuration in a motor vehicle. Said device comprises a hollow body (6), which is divided into at least two chambers by at least one sonic transmission device (7). According to the invention,...  
WO/2003/087547A1
The invention relates to an exhaust chamber comprising an external envelope (10), defining a gas circulation passage and at least one continuous wall (16, 20, 22, 24) along which at least one cover piece (26A, 26B, 30, 32, 34) is arrange...  
WO2002095376A3
The device of modular construction permits the simultaneous or also non-simultaneous recording and characterisation of the solid and liquid particles and the gaseous components of the exhaust gases on various test supports, with only sma...  
WO2003058041A3
The invention concerns an exhaust silencer arrangement with integrated bypass assembly and external actuator to control the position of the bypass assembly and external actuator to control the position of the bypass assembly. For applica...  
WO2003007682A3
An emission control device (10) and method are provided for treating exhaust to reduce pollutants contained therein. The device (10) includes a first chamber (16) through which the exhaust passes. First and second grids (26 & 30 respecti...  
WO/2003/071103A1
An internal combustion engine silencer, which is intended to achieve a great silencing effect without decreasing the silencing effect in the high rotation region for the engine, comprises a one or more expansion chambers (11-13) formed w...  
WO/2003/071104A1
The invention concerns an internal combustion engine exhaust line comprising an active noise reduction system (6) with variable choke device, continuously regulated based on the instantaneous discharge rate pulses of exhaust gases exitin...  
WO2001083957A9
A silencer (143) is disclosed that reduces the acoustic energy of a fluid mixture (111) of a liquid coolant (109) and of exhaust gas (107) from an engine. The engine may be a marine engine. The silencer (143) according to this aspect inc...  
WO/2003/058041A2
The invention concerns an exhaust silencer arrangement with integrated bypass assembly and external actuator to control the position of the bypass assembly and external actuator to control the position of the bypass assembly. For applica...  
WO/2003/056149A1
Exemplary methods, devices and/or system for reducing noise produced by a turbine (126), such as, a turbocharger turbine. An exemplary exhaust conduit employs material to absorb exhaust-borne noise and/or structure-borne noise. Another e...  
WO/2003/056148A1
The invention concerns a device for expanding a compressed gas, comprising a tube (3) supplying the gas to be expanded, an elongated sheath (1) containing a lining (2) made of a sound damping material, one end of said sheath communicatin...  
WO/2003/056223A2
Disclosed is a sound absorbing device in a pipe duct (2), particularly a gas transporting port (2) of an internal combustion engine (1), comprising at least one bypass duct (5) running parallel to a main duct (6) in a sector of the pipe ...  
WO/2003/056228A1
A fluid pathway (36) provided with a flow controller (37) in at least a portion of its length wherein the flow controller (37) comprises an active surface capable of influencing the fluid flow (34) through the fluid pathway (36), the con...  
WO/2003/056147A2
The invention concerns a silent diffuser for compressed gas expansion, comprising a tube (3) for intake of the gas to be expanded, an elongated sheath (1) containing a lining (6) made of a sound damping material, one end of said sheath c...  
WO/2003/052243A1
The invention relates to a honeycomb body (1) for an exhaust system of an internal combustion engine. Said honeycomb body (1) has an axial length (L) and channels (5, 8) which can be cross-flown by the exhaust gas (3) and which are essen...  
WO/2003/050398A1
The present invention relates to an engine exhaust treatment system (20) including a first exhaust gas path (24) having a diesel particulate filter (32) and a second exhaust gas path (26) having a catalytic converter (34). The system als...  
WO/2003/048532A1
In motor vehicles and more generally for combustion engines ( motor vehicle, motorcycles, lawn mowers, electric generators, work site machinery and the like) silencer and exhaust manifold help to eliminate shock waves so as to reduce sou...  
WO/2003/044336A1
This invention relates to a cooling and silencing device for an internal combustion engine. Said device comprises a housing provided with opposite first and second end faces, an inlet opening positioned in the first end face, an outlet o...  
WO/2003/044341A1
This invention relates to a method to improve the output of an engine by processing the exhaust gas. The method comprises following steps: first, leading the exhaust gas from exhaust pipe into a processing device, and then, to promote th...  
WO/2003/044339A1
This invention relates to a filter device to treat the exhaust gas of an internal combustion engine by a catalyst. Said device comprises a housing which is provided with opposite first and second end faces, an inlet opening positioned in...  
WO/2003/044366A1
Generator set comprising a case−shaped housing in which a driven unit and a driving combustion engine, particularly a diesel engine, have been placed, a sound insulating assembly having been arranged at at least one side of the engine ...  
WO/2003/044337A1
This invention relates to an absorption device used for processing exhaust gas from an engine. Said device comprises a first housing provided with opposite first and second end faces, a first inlet open positioned in the first end face, ...  
WO/2003/044345A1
Exhaust system to be used in combination with a combustion engine comprising an exhaust pipe and a silencer in which it consists of an outer casing (2) of a mainly uniform cross-section and an internal system comprising a number of chamb...  
WO/2003/044340A1
This invention relates to a swirl device for processing the exhaust gas from an internal combustion engine. Said device comprises a housing provided with opposite first and second end faces, a first inlet opening positioned in the first ...  
WO/2003/040527A1
The invention relates to a gas expansion silencer comprising an end piece (12) which is intended to be connected to a pressurised gas source and a low-pressure stage (22) consisting of two cylindrical parts (24, 26) having a small diamet...  
WO/2003/038248A1
The invention relates to a filter composite (1) and to a method for the production thereof, whereby a fluid can flow through the filter composite (1). The filter composite comprises at least one top layer (2) made of an at least partiall...  
WO/2003/033882A2
The present invention provides a sound attenuator for pneumatic exhaust that includes a body having an open end and an inner cavity defined by an inner wall, an inlet port provided in the body adapted to establish fluid communication bet...  
WO/2003/027480A1
A flow tube (18) for an induction system (14) with a turbo charger (12) includes a first tube half (22) and a second tube half with a noise attenuation plate (24) positioned between the halves. The noise attenuation plate includes a plur...  
WO/2003/025357A1
The present invention relates to a converter device intended to be arranged in an exhaust system for a combustion engine. The converter device comprises an outer casing (1), a passage for leading exhaust gases through the converter devic...  
WO/2003/025356A1
The present invention relates to a converter device intended to be arranged in an exhaust system for a combustion engine. the converter device comprises an outer casing (1), a passage for leading exhaust gases through the converter devic...  
WO/2003/023201A1
A process is provided for filling a muffler shell with fibrous material. It comprises the step of providing a muffler shell (12) comprising one or more muffler shell outer parts (14, 16) which define an internal cavity (17) and an intern...  
WO/2003/021088A1
A process is provided for filling a muffler shell with fibrous material. The process involves providing a muffler shell (12) comprising first and second muffler shell outer parts (14,16) which define an internal cavity (17) when coupled ...  
WO/2003/014544A1
The invention relates to honeycomb bodies, especially those used in the exhaust system of an internal combustion engine, comprising a housing and an especially metal matrix with an average starting diameter, characterized in that the mat...  
WO2002036944A9
An exhaust silencer device (300), comprising a housing (302), an intake wall (318) and an exhaust wall (316) disposed within the housing (302), the intake wall (318) and the exhaust wall (316) forming a flow channel, an intake manifold (...  
WO2002046585A3
A fluid stream pulse damper (12) having a fluid conduit (20) defining a fluid path (18) and a fluid flow direction (18). The conduit (20) has an inlet end (34) and an outlet end (36). A damper body (22) in the conduit (20) intersects the...  
WO/2003/007682A2
An emission control device (10) and method are provided for treating exhaust to reduce pollutants contained therein. The device (10) includes a first chamber (16) through which the exhaust passes. First and second grids (26 & 30 respecti...  
WO/2003/006311A1
Lift mufflers compatible with other equipment to be fitted within the limited space available in an engine room of a watercraft are disclosed. A first embodiment (26) comprises a housing (40), inlet baffle (52) and outlet baffle (54). Th...  
WO/2003/002852A2
A catalytic muffler (10) having a housing (12) with a first chamber (14) and a second chamber (16) fluidly communicating through a catalyst bed interspersed there between. A first baffle assembly (40) in the first chamber (14) extends be...  
WO/2003/002855A1
A catalytic muffler having at least one reactor bed (20, 22) each bed having an array of discreet adjacent flow zones (30, 32, 34, 36). The flow zones are interconnected by a series of passages (50, 52, 54) for unidirectional flow (90) o...  
WO2002053884A3
A method and apparatus for processing exhaust gas of internal combustion engines, in a manner favorable to noise attenuation and clean emissions. The apparatus (18) is characterized by turbine blades (70.1, 70.2, 70.3, 70.4, 110, 133, 13...  
WO2002042233A3
High temperature glass fibers suitable for use as textile and reinforcements are specifically adapted to be used in high temperature applications such as sound absorbing material in engine exhaust mufflers. The glass fibers have composit...  
WO/2002/103188A1
A gas turbine engine includes an exhaust flow guide attached to the engine exhaust end. The exhaust flow guide is made of a piece of sheet metal curved about the central longitudinal axis of the engine to form a partial portion of a nozz...  
WO/2002/101227A1
The invention relates to a silencer (1) for noise-laden gas pipes, especially for a suction pipe and/or an exhaust pipe of an internal combustion engine, comprising an outer pipe (2) with an inlet side (3) and an outlet side (4), a plura...  

Matches 601 - 650 out of 14,783