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Patent Searching and Data


Matches 151 - 200 out of 14,837

Document Document Title
WO/2015/054558A1
An apparatus and method for attenuating sound from an engine exhaust. The relative lengths of the expansion chambers and other components within the apparatus provide a quadruple tuning effect which attenuates sound over a wide frequency...  
WO/2015/043641A1
The invention relates to a suction device comprising a fan device (32) for generating a suction air flow and an air conducting device (38) having at least one flow deflection element (46) comprising an inlet tube (52) and an outlet tube ...  
WO/2015/040955A1
A muffler (10) is a wound muffler formed by inserting a silencing device (20) into a main body part (11) formed in a tubular shape. The silencing device (20) is provided with an expansion part (30) that is expandable in the axial directi...  
WO/2015/033215A1
The invention relates to a silencer unit (1) for a heat recovery ventilation (HRV) unit for providing supply air, preferably outside air (fresh air), to an apartment or parts thereof and for removing return air, preferably exhaust air (u...  
WO/2015/033213A1
The invention relates to a silencer duct (2, 4) in a silencer unit (1) for a heat recovery ventilation (HRV) unit for providing supply air, preferably outside air (fresh air), to an apartment or parts thereof and for removing return air,...  
WO/2015/028727A1
The invention concerns a silencer (S1) intended to be fitted to an exhaust line (L) of a heat engine (M), and that comprises one or a plurality of envelope(s) that delimit three volumes (1 a,1 b, 2), referred to as upstream (1 a), interm...  
WO/2015/028379A1
The invention relates to a motorcycle comprising a engine and an exhaust gas pipe which is connected thereto, and to a motorcycle rear wheel rocker. Said motorcycle rear wheel rocker comprises a closed cavity which is in fluid connection...  
WO/2015/026890A1
A muffler includes a shell, baffles, and a plurality of pipes. The shell defines first and second end cavities and a central cavity. The end cavities have larger cross-sectional areas that a cross-sectional area of the central cavity. Th...  
WO/2015/015073A3
The invention relates to a gas pressure regulating assembly (17) comprising: - a circuit (6) for passage of the gas requiring pressure regulation, - a gas discharge circuit emerging in the passage circuit (6), a valve (3) for regulating ...  
WO/2014/207335A1
The invention relates to a muffler (S) intended to be mounted in an exhaust line (L) of a heat engine (M), said muffler comprising one or more shells defining three volumes (1a, 1b, 2), referred to as upstream (1a), intermediate (1b) and...  
WO/2014/208300A1
An exhaust muffler in which a plurality of expansion chambers including an expansion chamber where a downstream end of an inlet pipe opens are formed in a shell so that sequential flows of exhaust gas are formed, and an outlet pipe havin...  
WO/2014/205039A1
A recirculating flow muffler apparatus and method includes a case with an exterior surrounding an interior space, the interior space forming a return area, where the case has a front and a rear. An inlet is provided at the front of the c...  
WO/2014/195062A1
The invention relates to an exhaust gas system (1) for an internal combustion engine having at least a first and a second cylinder, wherein a first exhaust gas pipe (2) is associated with the first cylinder and a second exhaust gas pipe ...  
WO/2014/183978A1
Exhaust system (1) for an internal combustion engine, having at least a first and a second cylinder, wherein the first cylinder is assigned a first exhaust gas manifold (2) and the second cylinder is assigned a second exhaust gas manifol...  
WO/2014/182145A1
This invention is a type of sophisticated exhaust pipe. It is characterised in that it consists of two parts: a physical part (figure 7) and a chemical part (figure 5 or figure 6). It can be mounted on cars, trucks, motorcycles and vario...  
WO/2014/181596A1
A soundproof cover (30) is equipped with: multiple unit soundproof covers (31R, 31L) forming a portion of the circumferential cross section (30s); and connecting parts (35) provided on the periphery of the circumferential cross section (...  
WO/2014/171380A1
Provided is a muffler cutter having excellent heat-insulating and sound-damping properties, and capable of improving the quality of the exhaust sound. This muffler cutter (1), which is mounted on a tail pipe in a vehicle exhaust system, ...  
WO/2014/164289A1
A muffler for a motor vehicle has a muffler housing with a packing void into which an envelope containing a loose fill material is installed during assembly. The envelope contains elongated strands of continuous strand fiberglass, woven ...  
WO/2014/162578A1
[Problem] To reduce the labor involved in attaching a protector, and to enable the protector to be attached securely. [Solution] A muffler main body (2) is configured with a cylindrical body (21) housing a sound-muffling mechanism, and w...  
WO/2014/141791A1
Provided are a gas turbine silencer for avoiding the formation of gaps between an upstream silencer panel and a downstream silencer panel and suppressing the occurrence of secondary noise, and a gas turbine provided with this silencer. A...  
WO/2014/141778A1
An exhaust pipe for forming an exhaust flow channel, provided with: a first flow channel member for forming part of the exhaust flow channel; and a second flow channel member connected in series with the first flow channel member, for fo...  
WO/2014/126548A1
A vehicle exhaust system includes an exhaust component having an outer surface and an inner surface that defines an internal exhaust component cavity. At least one bleed hole is formed in the exhaust component to reduce a resonance frequ...  
WO/2014/109192A1
A muffler comprises a double pipe section formed by inserting an end of a first pipe-like member (10) into a second pipe-like member (20) from an end thereof. The front end section (23) of the second pipe-like member is joined to the out...  
WO/2014/109389A1
A method for installing an inlet pipe in a muffler which is provided with an outer shell, the inlet pipe, and separation plates, wherein the method comprises: a first step for inserting the inlet pipe into the outer shell from one of the...  
WO/2014/076355A1
Invention relates to an exhaust gas noise attenuator unit (10), the attenuator unit comprising exhaust gas inlet and an exhaust gas outlet (16) arranged in flow connection with each other via a duct section (18) between them; at least tw...  
WO/2014/062943A1
A low-emission binder composition is provided for use in a glass fiber muffler preform. The low-emission binder composition comprises a predominantly inorganic material and an optional cross-linking agent. The low-emission binder composi...  
WO/2014/059504A1
The present invention refers to an expansion chamber for alternative compressor discharge lines preferably used in refrigeration systems. Said expansion chamber comprises at least two volumes (1, 2) separated from each other by at least ...  
WO/2014/051937A1
A compressor assembly for an intake system includes: a monolithic housing; a first resonator section formed in the monolithic housing, the first resonator section defining two or more volumes configured to attenuate noise associated with...  
WO/2014/052701A1
A modal attenuator may include an attenuator body (12) having a lead-in segment (26) and a lead-out segment (28) joined by a connection segment (30), a perforated screen (32) disposed within the attenuator body and spaced apart from the ...  
WO/2014/044698A1
The invention relates to a bag (1) for insertion into a cavity of a silencer, which cavity is intended for sound damping or absorption, having a cover (2) which is closed on all sides and having a sound-damping or sound-absorbing filling...  
WO/2014/044950A1
The invention relates to a noise attenuation device (102) for a booster circuit of a turbocharged internal combustion engine (12) comprising a part (104) designed to form a heat screen around at least a portion of the turbocompressor (14...  
WO/2014/040745A1
The invention relates to an exhaust-gas system (1) of an internal combustion engine having an exhaust-gas line (2) which conducts exhaust gas and is assigned an active silencer (3) which has at least one loudspeaker (5), the diaphragm (9...  
WO/2014/006650A1
An indoor unit (50) is formed by providing air blowers (4) on the upstream side of heat exchangers (5) and comprises partition plates (20) for separating each set composed of both an air blower (4) and a heat exchanger (5) from each othe...  
WO/2013/183772A1
Provided is a muffler characterized by being equipped with: an outer shell; an outlet pipe, which is formed in the shape of a tube having a pair of open end parts, and has an inflow port, with one of the pair of open end parts and the in...  
WO/2013/177839A1
A catalytic muffler capable of reducing the temperature of an exhaust gas, comprising a muffler and a housing surrounding the muffler. The muffler is provided with an exhaust opening. The housing is provided at the front end thereof with...  
WO/2013/175404A2
Disclosed are methods, devices, apparatus, assemblies and systems for generating and directing acoustic energy (e.g. sound). According to some embodiments, there may be provided a cyclical acoustic apparatus or generator comprising a cyc...  
WO/2013/171368A1
The invention relates to a method and apparatus for attenuating sound of exhaust gases of an engine, the method comprising leading the exhaust gases of the engine through an inlet duct (2) to a sound attenuation space separated from the ...  
WO/2013/169490A1
An adaptive valve assembly includes a pipe defining a passageway for conducting engine exhaust gases, a pivot shaft supported by the pipe, and a valve body coupled to the pivot shaft. The valve body is moveable between an open position w...  
WO/2013/162565A1
A reductant storage and dosing system which uses at least one canister containing a supply of reductant to supply, via a delivery line, an exhaust gas after-treatment system having an injector is disclosed. A controller may be used to me...  
WO/2013/152793A1
The invention relates to a reflection silencer for a turbocompressor. The reflection silencer (1) has a tubular or (circularly) annular reflection body (10), through which a flow medium (2) flows axially (5) in a flow direction (3). In t...  
WO/2013/149912A1
The invention relates to a muffler (1) for an exhaust gas system of an internal combustion engine, comprising a muffler housing (1.2) having a housing wall (1.1), at least one inlet pipe (2) fed through the housing wall (1.1), and at lea...  
WO/2013/149725A1
The invention relates to a muffler for an exhaust gas system (2) of a motor vehicle driven by an internal combustion engine, wherein the muffler forms part of an underbody of the motor vehicle. The invention further relates to a motor ve...  
WO/2013/143016A3
A method of and a system for generating an acoustic wave representing reverberations from a desired acoustic environment are described including having a recording surface (11) defined by a spatial distribution of recording transducers (...  
WO/2013/141233A1
The phenomenon of resonance in a catalyst converter due to exhaust gas flow is reduced without causing problems with vehicle layout, problems with manufacturing (high costs), or adverse effects on other facets of performance. An internal...  
WO/2013/125764A1
The present invention relates to a tail pipe structure for a muffler, in which the tail pipe structure occupies less space in the muffler and extends an exhaust gas discharge path. The tail pipe structure for a muffler according to the p...  
WO/2013/125572A1
In the present invention, a valve device comprises the following: a butterfly and a first link member supported by a stay so that each are rotatable and movable about a first rotation axis line and a second rotation axis line; a second l...  
WO/2013/115434A1
The present invention relates to a valve device for a muffler and, more particularly, to a valve device for a muffler consisting of a structure inserted into a pipe for a muffler in order to open and close the passage. The valve device f...  
WO/2013/104689A1
The invention relates to a muffler arrangement for exhaust systems. The muffler arrangement has a muffler and a control device (5). The muffler comprises an exhaust gas flow pipe which has at least one exhaust gas inlet opening and at le...  
WO/2013/089010A1
An air intake device for an internal combustion engine equipped with a Helmholtz resonance chamber for deadening sound. The air intake device is equipped with: an inlet pipe (2), one end of which is connected to an air intake pipe (1); a...  
WO/2013/083739A1
The invention relates to a silencer arrangement for exhaust systems of motor vehicles with internal combustion engines. The silencer arrangement comprises at least one rear exhaust silencer (16, 17) having at least one exhaust pipe (18, ...  

Matches 151 - 200 out of 14,837