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Patent Searching and Data


Matches 701 - 750 out of 14,833

Document Document Title
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...  
WO/2001/065083A1
A muffler (10) includes an outer shell (13) defining a chamber (31) and first and second inner plates (16, 18) positioned to lie in the chamber (31). The second inner plate (18) includes a base portion (19), a baffle (24, 26) integral wi...  
WO/2001/061164A1
The invention relates to a line for guiding gases, especially exhaust gas of an internal combustion engine in a motor vehicle. Said line consists of at least one sound absorbing layer of a heat-resistant material. The invention also rela...  
WO/2001/053665A1
An exhaust gas treatment device for exhaust gas system capable of reducing and removing unburned gases, incompletely burned gases, soot and smoke, and oil content contained in the exhaust gases from an internal combustion engine, increas...  
WO/2001/051777A2
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...  
WO/2001/051781A1
The invention relates to an exhaust gas system of an internal combustion engine, especially in a motor vehicle. Said exhaust gas system comprises at least one catalyst, fitted with a catalyst housing (8) and a catalyst insert inserted in...  
WO/2001/043119A1
A device at an acoustic liner for an apparatus generating sound comprises means (12) adapted to enable changes of the value of the acoustic impedance of the liner.  
WO/2001/042630A2
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/2001/042631A1
The present invention relates to a sound-absorbing channel element for a flowing medium. The channel element (1) has an inlet (2) connected to a sound source and an outlet (3), and is defined by outer walls (4) extending in the flow dire...  
WO/2001/038700A1
The invention concerns an active device for reducing noise in an engine (10) exhaust system (12) comprising two exhaust outlets (16A, 16B). The device comprises for each exhaust outlet (16A, 16B), a particular transducer (24A, 24B) for e...  
WO/2001/038701A1
The invention concerns a cooling device comprising, inside a substantially cylindrical outer casing (2) having a side wall traversed by orifices (3) a first flow path consisting of a tube (16) extending in an axial direction of the cylin...  
WO/2001/033049A1
A silencer device for silencing a flowing gas, comprising a valve (1), which is arranged in a valve housing (2) through which the gas in flowing. The silencer device also comprises a separate pressure regulator (4), which is provided ext...  
WO/2001/027445A2
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...  
WO2000043094A3
The invention concerns a system for neutralising polluting gases contained in particular in gas oil or gasoline internal engine exhaust gases, or stack effluents. It consists of mutually assembled or integrated modules, selected accordin...  
WO/2001/025604A1
A stratified scavenging two-cycle engine with catalyst capable of meeting, using catalyst, such a requirement that THC exhaust rate must be 54 g/kw • h or less, wherein an air feed volume ratio R of an air feed volume (qa) flowing thro...  
WO/2001/023714A1
The invention relates to a silencer which is designed, in particular, to be suitable as a terminal silencer. Said silencer is configured as a simple Helmholtz resonator and is characterised in that it has excellent silencing properties p...  

Matches 701 - 750 out of 14,833