| Document |
Document Title |
|
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...
|
|
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...
|
|
WO/2001/021941A1 |
A two-stroke internal combustion engine (1), mainly intended for a working tool, preferably a chain saw or a trimmer, and provided with a muffler device (2). A pipe (3), which either is straight or bent, and having an adapted or tuned le...
|
|
WO/2001/019743A1 |
A fibrous sound absorbing mass mode of fibers having a biologically degradable composition, comprises components (I) in % by weight, wherein the sum of calcium oxide and magnesium oxide is in a range of 26.1 to 30.1 % by weight and the s...
|
|
WO/2001/018365A1 |
An arrangement for providing a noise silencing unit (3) for reducing noise from a gas through flow, which comprises at least a first flow path for said gas flow and a detection arrangement in connection with said first flow path for dete...
|
|
WO/2001/014695A2 |
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/2001/011207A1 |
The invention concerns an exhaust volume (20) comprising an exhaust silencer (24), provided, on its casing, with an inlet (29) and an outlet (30) for the flow of gases adapted for mounting the exhaust silencer in an exhaust line (14). It...
|
|
WO/2001/007792A1 |
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/2001/004470A1 |
A waterlift silencer and method for reducing the acoustic energy of a fluid mixture of engine exhaust gas and a liquid coolant and limiting back pressure exerted by the silencer on an engine, particularly as applied to engines located be...
|
|
WO/2000/075495A1 |
A muffler (20) for attenuating noise produced by a pneumatic device having limited clearance. The muffler (20) includes a housing (22), a base (24) and an acoustic absorption insert (100). The housing (22) defines an upstream end and a d...
|
|
WO/2000/066884A1 |
The invention relates to a manifold arrangement for exhaust systems of internal combustion engines, especially multi-cylinder motorbike engines. Said arrangement is introduced between the exhaust gas outlet pipes coming from the or each ...
|
|
WO/2000/061925A1 |
The invention relates to an exhaust system (1) for an internal combustion engine. Said system (1) comprises at least two exhaust branches (2, 3) and a device for closing at least one exhaust branch (3). The inventive system comprises at ...
|
|
WO/2000/047877A1 |
Method for neutralization of the exhaust gases and exhaust sound suppress of the explosion engine includes supply of the pre-heated air with its further mixing with the exhaust gases and further self-ignition in the burn zone, air gets t...
|
|
WO/2000/046491A1 |
The present invention relates to a muffler for an internal combustion engine, capable of attenuating exhaust sound sufficiently and preventing power output from being reduced, by allowing exhaust gas to flow without a hitch and generatin...
|
|
WO/2000/045673A1 |
A power inflation system, e.g. for use as an inflatable lumbar support for a seat, comprises a pump (22) in fluid communication, through a conduit (140A, 140B) with a closed cell (18). A sound attenuator (200) is operatively disposed in ...
|
|
WO/2000/043094A2 |
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/2000/042301A1 |
The invention relates to a method for producing an absorption silencer. A section of a steel wool strip is severed from a supply thereof. The perforated area of a tube is wrapped with the steel wool strip section. Said tube is embedded i...
|
|
WO/2000/040841A1 |
The invention relates to a device in a silencer unit (1) of an automotive vehicle, for suppressing unwanted noise originating from an exhaust gas flow from the vehicle engine, said silencer unit (1) being terminated by an end pipe (6), t...
|
|
WO/2000/036589A1 |
The invention relates to a controlled acoustic wave guide configured as an elongated hollow chamber (1) which via an opening (2) in its first face end (3) is connected to a sound-conducting channel (4). The longitudinal resonances of the...
|
|
WO2000008315A9 |
The invention relates to an exhaust muffler mounted on an internal combustion engine in a power chain saw. The inventive muffler consists of a housing (1) comprised of two housing shells (2, 3). One housing shell (2) comprises an exhaust...
|
|
WO/2000/032910A1 |
Device for suppression of noise or sparks (10) of an internal combustion engine of a vehicle. The device comprises a housing (22) surrounding at least one suppression chamber (20) configured to cause frontal collision of combustion gases...
|
|
WO/2000/030735A1 |
An emissions reduction system (10) comprising an emission gas inlet (22) for receiving emissions-containing gas, and an emissions reducing device (10) for reducing emissions contained in the emissions-containing gas. The emissions reduci...
|
|
WO1998056573A9 |
A forge/swage formed three-dimensional multilayer metal foil shield having areas (6) therein where the layers (21) are in a spaced apart relationship, areas (2) therein where the layers are tensioned or stretched, and areas (4) where the...
|
|
WO/2000/031403A1 |
The device for discharging flowing gases from pipes by means of a return pipe to the combustion engine consists of a streamlined body positioned in a collector placed in an exhaust pipe, with an open socket facing into the exhaust flow a...
|
|
WO/2000/019152A1 |
A reactive silencer intended for industrial supply air or exhaust air channels, the said silencer being comprised of a sound attenuator chamber (10), to which is fitted a partition wall (12) dividing the sound attenuator chamber into a f...
|
|
WO/2000/016924A1 |
A production method for a double-structure container having a clearance between an inner tube and an outer tube thereof, wherein, in order to facilitate production thereof and reduce production costs, an inner tube (4A) is disposed insid...
|
|
WO/2000/017497A1 |
A process for installing a fiber wrap or a packing material in a tubular construction, for example a muffler assembly, includes a step of compressing a mat (182) of packing material by removing at least a portion of air from the mat of p...
|
|
WO/2000/011328A1 |
A catalytic converter and resonator combination (10) is contained within a common canister (12). The catalytic converter component (24) is positioned upstream of the resonator component (34) (relative to engine exhaust flow) for receivin...
|
|
WO/2000/011327A1 |
A silencer and a silencer cartridge or pack for a vehicle exhaust assembly is described. The silencer includes an outer wall (8), a porous exhaust pipe (4) which defines an inner wall and a sound absorbent fibrous material (6) located be...
|
|
WO/2000/009869A1 |
The device comprises an exhaust gas duct (8) for guiding the exhaust gas (A), an injection device (10) for injecting a reactant (R) into the exhaust gas (A) and at least one built-in catalyst (16, 18) mounted in the exhaust gas duct (8)....
|
|
WO/2000/005489A1 |
The invention relates to a device and a method for actively reducing the noise emissions of internal combustion engines (1) in an exhaust pipe (2) which guides a stream of exhaust gas (3). To this end, the device has at least one first e...
|
|
WO/2000/005488A2 |
The present invention pertains to the field of engine construction and relates to a silencer having a body that comprises a tangential inlet tube as well as an outlet tube. At least two housings are mounted coaxially in the body and defi...
|
|
WO/1999/064777A1 |
The inventive suspension eye has a ring-shaped elastomer body (10) in which two fixing parts (16) are situated diametrically opposite each other; and a flexible insert (20) in the form of a loop. Said loop is embedded in the elastomer bo...
|
|
WO/1999/061762A1 |
A silencer, wherein a plurality of dot-shaped projected parts (15) and dot-shaped recessed parts (16) are provided on at least one of an inner plate and an outer plate so as to reduce the emission noise of high frequency components which...
|
|
WO/1999/060255A1 |
An exhaust system or an engine (12) includes a lean NOx catalytic device (18), and a heat exchanger (70) positioned upstream of the catalytic device (18). Control means (44, 46) controls a valve (36) to regulate exhaust gas flow through ...
|
|
WO/1999/058824A1 |
The invention relates to a silencer for the exhaust gas or suction air of a combustion engine or for some other pulsative gas flow, whereby the silencer can be connected between an inlet flow duct (1) having a first cross-sectional flow ...
|
|
WO/1999/058825A1 |
An exhaust muffler for a motor vehicle includes a louver tube having an intake end and an exhaust end. An outer tube (20), consisting of a frustoconical portion and a cylindrical portion, is concentrically arranged around the louver tube...
|
|
WO/1999/050539A2 |
A device (a silencer) for silencing a flow, comprises at least one acoustic chamber through-flowed by gas, e.g., exhaust gas, at least one inlet pipe and at least one pipe or passage interconnecting two chambers or a chamber and an exter...
|
|
WO/1999/049218A1 |
A discharge silencer (22) to be provided underneath a vacuum pump (12), constituted by disposing a suction port (24) communicating with a discharge pipeline (21) of the vacuum pump (12) on one side of a hermetically sealed tank (23) and ...
|
|
WO/1999/048661A1 |
The invention concerns in particular a mould comprising a wall (2) permeable to the mineral fibre suspension medium, characterised in that said wall permeability increases from the mould lower part to its upper part. Said mould is useful...
|
|
WO/1999/047795A2 |
Method and device to monitor functioning of a catalyst (15) mounted in the exhaust gas section (3) of an internal combustion engine (1), enabling determination of the conversion rate as a function of the temperature of the catalyst (15) ...
|
|
WO/1999/046147A1 |
The invention relates to a vehicle lining which is used in the area of curved car body parts and has a vibration-damping and heat-shielding action. To this end the vehicle lining comprises a heat shield (9) which is positioned on the sid...
|
|
WO/1999/044722A1 |
An apparatus for reducing contaminants in a pulsating exhaust gas, particularly diesel exhaust, on board ships, which apparatus comprises a wet scrubber, which includes a chamber in a housing having a gas inlet and a gas outlet, a fluid ...
|
|
WO/1999/043934A1 |
The invention concerns an internal combustion engine exhaust line comprising a conduit (1) with a first end (2) connected to the engine output and comprising several monoliths or groups of monoliths for catalytic conversion of exhaust ga...
|
|
WO/1999/041491A1 |
A muffler (1) is described for muffling both positive power and compression brake type engine retarders. The muffler includes an outer shell (3) defining an internal volume (45). A first, inner, perforated wall (57) is spaced from the ou...
|
