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Patent Searching and Data


Matches 651 - 700 out of 14,722

Document Document Title
WO/2002/057616A1
The invention relates to a sound absorber (1) mounted on or in a component (7), wherein a sound which is to be absorbed is propagated. The silencer (1) comprises a hollow body (8), which communicates with the component (7) or forms a com...  
WO2000052312A9
A muffler (10) having two outer shells (12, 14) attached at their peripheries to form an internal chamber divided into subchambers by a perpendicular baffle (20) extending between the shells (12, 14) that is equipped with an aperture (26...  
WO2002002915A8
The exhaust muffler for internal combustion engines, especially automobile engines consists of a heat exchanger (3) placed in a housing (1) and a coaxially located silencing rotor (4) placed on a shaft (2). Pipes (13) are connected to th...  
WO/2002/053884A2
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...  
WO/2002/053883A1
This invention relates to an exhaust gas flow control valve, designed to be mounted at the end of the inlet pipe (2) of an exhaust line silencer (1). This control valve is characterised by the fact that it is essentially made up of a cha...  
WO/2002/050407A1
The use of fiber metal or similarly high flow resistance and high acoustic transparency material as a liner for traditional acoustically absorptive media in a dissipative muffler exhibits improved low frequency sound attenuation, reduces...  
WO/2002/050420A1
The invention concerns a device for soundproofing a gas stream comprising a pipe provided with perforations wherein circulates the gas stream and comprising a sound-absorbent coating over at least part of its internal surface.  
WO2002006643A3
A multiple layer fiber filled sound absorber (100) and method of manufacturing the absorber are disclosed. The sound absorber includes an outer housing (110), a porous or perforated inner tube or housing (120) defining a passageway (126)...  
WO/2002/046585A2
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...  
WO2002027159A3
The invention relates to a method for producing an absorption muffler for motor vehicles that is provided with a semimonocoque design or in the form of a casing. Said muffler comprises a housing (1) and an inner muffler body (2), which i...  
WO/2002/042233A2
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/2002/038419A1
A bumper/muffler assembly (30) is provided comprising a bumper (20); and a muffler (10) having an outer shell (12). The outer shell may be formed from a non-high impact resistant material, such as a thin metal or a composite material. Th...  
WO/2002/037468A1
An arrangement of acoustic noise reduction equipment including an electronic controller (17), acoustic sensors (13, 14), and an acoustic output device (16), the controller being connected to the sensors (13, 14) and the output device (16...  
WO/2002/036944A1
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 (...  
WO/2002/036942A1
The subject invention refers to a muffler comprising a muffler housing (1, 2) and generally a catalytic converter element (13) mounted in the housing, which muffler has at least one inner outlet (4) through which exhaust gases cleaned by...  
WO/2002/033230A1
A method and system for attenuating noise including arranging a plurality of accumulator (210A, 210B, 310A, 310B) to form a transmittance path for compressible flow mass and noise between a noise source (212A, 212B, 312A, 312B) and the e...  
WO/2002/027161A1
The present invention relates to an ant-scald exhaust muffler which is installed in a exhauts line. This muffler comprises an inner metal plate and an outer metal plate, which combine with each other to form a sealing hollow body. Making...  
WO/2002/027159A2
The invention relates to a method for producing an absorption muffler for motor vehicles that is provided with a semimonocoque design or in the form of a casing. Said muffler comprises a housing (1) and an inner muffler body (2), which i...  
WO2001081737A3
The invention concerns a terminal element for a gas exhaust pipe. Said element comprises a longitudinal jacket (8) with an intake (7), an outlet (11) and a concentric inner pipe (13) extending along part of the jacket (8), the pipe being...  
WO2000050742A9
An exhaust system (10) includes an exhaust manifold (14) coupled to an engine (12), a decoupler (16) including an inlet coupled to exhaust manifold (14), an outlet extension (28) coupled to an outlet of decoupler (16), and various downst...  
WO/2002/023018A1
In-line exhaust systems comprise an exhaust pipe (14), and a sound-attenuating baffle (34) in the exhaust pipe. The baffle has one or more baffle plates extending across the gas flow channel, at least one at an oblique angle. Each plate ...  
WO/2002/023099A1
A light absorbent for hygienic spaces comprising a porous mat. The normalized flow resistance of the mat is in the interval of 0.5-2.  
WO/2002/023019A1
The invention relates to a device for treating waste gases, which can be arranged inside the waste gas stream of an internal combustion engine or in the waste gas line of stationary firing locations and which comprises a supply pipe and ...  
WO/2002/014561A1
The present invention relates to an engine silencer for controlling back pressure and gas leakage. The silencer includes an outer tube, an inner tube coaxial through the outer tube, plates with holes disposed at the space between the inn...  
WO/2002/010563A1
The invention relates to mechanical engineering and can be used for reducing the toxicity of exhaust gases, for example in internal combustion engines. The inventive device for cleaning exhaust gases comprises a body (1) provided with an...  
WO/2002/010560A1
The invention concerns a device for active attenuation of sound waves produced by an exhaust line comprising a chamber (10) for exhaust gas circulation, a loudspeaker (12) and means for securing the loudspeaker (12) on the chamber (10). ...  
WO/2002/010561A1
The invention concerns a transverse partition (24, 124) separating two adjacent chambers (26) of an exhaust volume (12) comprising at least a passage (44, 164) for gases circulating between the two chambers, the cross-section provided fo...  
WO2001014695A3
A muffler (20) for attenuating noise produced by a pneumatic device having limited clearance. The muffler (20) includes a housing (22) and an acoustic barrier material (24). The housing (22) includes an inlet (30) and an outlet (32). In ...  
WO/2002/006643A2
A multiple layer fiber filled sound absorber (100) and method of manufacturing the absorber are disclosed. The sound absorber includes an outer housing (110), a porous or perforated inner tube or housing (120) defining a passageway (126)...  
WO2001042630A3
The invention provides apparatus for treating a gas stream, notably a silencer assembly for use to treat the exhaust gasses from an internal combustion engine, which apparatus comprises a plurality of compartments within which one or mor...  
WO/2002/002915A1
The exhaust muffler for internal combustion engines, especially automobile engines consists of a heat exchanger (3) placed in a housing (1) and a coaxially located silencing rotor (4) placed on a shaft (2). Pipes (13) are connected to th...  
WO/2002/001049A1
The invention concerns an exhaust volume (10) comprising a chamber (12) delimited by a side wall (20, 22, 24) and provided with a main intake (14) for exhaust gas supply and a main outlet (16) for exhaust gas evacuation. It comprises at ...  
WO2001051777A3
The invention relates to a flow switch comprising a feed channel (1), a Coanda tulip (5), at least two outlets (11 and 12) and a displacement body (6) which is arranged in the area of the Coanda tulip (5) and is provided with a flow surf...  
WO2001007792A8
An improved assembly of orifice chambers (10a) for reducing pressure of large gas flows effective to reduce noise of the gas flows and wear on orifice chambers by progressive pressure drops in the gas flows through successive orifice pla...  
WO/2001/086084A1
An insulating preform made of a mass of glass fiber resembling wool obtained by extreme bulking of glass fiber and by a support for the glass wool, the support including a net being of the same material of the glass wool and defined by a...  
WO/2001/083957A1
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/2001/081735A1
The present invention discloses an apparatus for transferring particulates in an exhaust stream, the apparatus comprising an exhaust stream flowpath, means (34) for charging at least some particulates within the exhaust stream and means ...  
WO/2001/081734A1
An automotive exhaust silencer system (1) consisting of exhaust silencers (2, 3) and an actuator (4) for modifying the flow resistance of the waste gas flowing therethrough by modifying the damping characteristics . The actuator (4) is p...  
WO/2001/081738A1
A muffler (1) intended for portable working tools, preferably chain saws, in which the muffler is mounted directly to the exhaust gas outlet (3) of the cylinder (2). The muffler is provided with at least one upstream partition wall (4, 5...  
WO/2001/081737A2
The invention concerns a terminal element for a gas exhaust pipe. Said element comprises a longitudinal jacket (8) with an intake (7), an outlet (11) and a concentric inner pipe (13) extending along part of the jacket (8), the pipe being...  
WO/2001/079682A1
A box body type noise suppressing unit (20), comprising a ventilating part (23) and a noise suppressing part (24) adjacent to the ventilating part, wherein the ventilating part (23) is formed of a ventilating passage (23c) opening in lon...  
WO/2001/079665A2
The invention relates to a multiple-chambered exhaust muffler (1), more particularly an exhaust muffler of a passenger car, comprising an outer housing (2) consisting of a top and a bottom half-shell (3, 4), an inner shell (5) and an inn...  
WO2001027445A3
A silencer that comprises a casing, one or more pipes or passages leading a flow of gas to said casing and means for leading gas from said casing. The silencer further comprises at least one internal chamber, one or more flow inlets to s...  
WO/2001/071169A1
A silencer for silencing and also for filtering exhaust gases, contains at least one acoustic resonator chamber (13, 14, 15, 16) (Helmholtz frequency), at least one porous body (7, 8) the porous body (7, 8) occupying at least part of the...  
WO/2001/069051A1
A gas-flow silencer (14) is provided which includes an elongate rigid conduit (12) and a sound absorbing body (14) substantially covering at least a major portion of an interior surface (16) of the conduit (12) and defining a gas-flow pa...  
WO/2001/066946A1
The invention relates to a sound absorber for compressors. The inventive sound absorber is particularly suitable for being directly placed upon the pressure outlet of a screw compressor. Said sound absorber has a housing (1) which has a ...  
WO/2001/065077A1
A muffler (10) includes an outer shell (13) defining a chamber (31) and a pair of inner plates (16, 18) positioned in the chamber (31). Each inner plate (16, 18) includes first and second folds partioning each of the inner plates into a ...  
WO/2001/065082A1
A chromed exhaust pipe and muffler for motorcycles that is capable of withstanding the extreme heat generated at high rpm's of a motorcycle engine without discoloring or 'bluing'. A double wall construction is utilized for the exhaust pi...  
WO/2001/065078A1
A muffler includes an outer shell (13) defining a chamber (30), a baffle (20) positioned in the chamber (30) defined by the outer shell (13), a first inner plate (16) positioned in the chamber (30), and a second inner plate (18) position...  
WO/2001/065084A1
A muffler includes an outer shell (13) defining a chamber (30) and first and second tubes (18, 20) positioned in the chamber (30). The first tube (18) has a flat side wall and the second tube (20) has a flat side wall positioned adjacent...  

Matches 651 - 700 out of 14,722