35results about "Sound absorption" patented technology

The invention relates to a shield (2) comprising at least two components (4, 5) which are designed to be connected to one another linearly adjacent to one another at at least one separating surface (6) in order to surround a three-dimensionally shaped contour or pipe (R) of an exhaust gas line (1) of an internal combustion engine over a length in the case of use. In order to modify the shield with further positive features while increasing its effect, it is proposed that the components (4, 5) of the shield (2) each include at least one electric heating system (3) which, in the installed position, is thermally directed toward the pipe (R) to be surrounded.

The invention relates to a system (1) for providing an operating fluid in a motor vehicle (2), comprising a tank (3), in which the operating fluid is stored, and a dispensing point (4), at which the operating fluid can be provided, and comprising a delivery module (5), which is designed to deliver and / or meter the operating fluid from the tank (3) to the dispensing point (4), wherein the delivery module (5) has a first delivery module unit (6) and a second delivery module unit (7), wherein the first delivery module unit (6) is arranged on the tank (3) and wherein the second delivery module unit (7) is arranged at a distance from the tank (3) and is connected to the first delivery module unit (6) via at least one line (8), wherein the delivery module (5) has a delivery pump (9) for delivering the operating fluid, wherein the delivery pump (9) is arranged in the second delivery module unit (7).

An exhaust muffler comprises a hollow body and an exhaust pipe disposed at least partially within the hollow body. The hollow body defines a first set of apertures on the hollow body and the exhaust pipe defines a second set of apertures and a third set of apertures on the exhaust pipe. The exhaust pipe has an inner surface and an outer surface. The inner surface defines a primary exhaust gas flow path (P). At least one divider allows the exhaust pipe to pass therethrough, and divides the hollow body into a first chamber and a second chamber. The first chamber defines a reservoir fluidly associated with the primary exhaust gas flow path (P) via the second set of apertures, and to the environment via the first set of apertures. The second chamber is fluidly associated with the primary exhaust gas flow path (P) via the third set of apertures.

An exhaust assembly (1) for an internal combustion engine (40) is disclosed. The exhaust assembly (1) comprises a housing (3) comprising an exhaust inlet (11), an exhaust outlet (12), and an inner surface (3') delimiting an inner volume (V) of the housing (3). The exhaust assembly (1) further comprises an exhaust aftertreatment unit (u1) arranged inside the inner volume (V). The exhaust aftertreatment unit (u1) comprises an outlet (u1") fluidly connected to the inner volume (V) of the housing (3). The exhaust assembly (1) further comprises at least one perforated wall (w1, w2) arranged inside the inner volume (V) of the housing (3) and a noise attenuating material (9, 9') placed between the at least one perforated wall (w1, w2) and the inner surface (3') of the housing (3). The present disclosure further relates to an internal combustion engine (40) and a vehicle (2) comprising an internal combustion engine (40).

A system for generating power with reduced or negative carbon emissions. The system includes a power plant portion having a power generation unit having an input coupled to a supply of a hydrocarbon fuel and having an energy exchange pathway. The system also includes a direct air capture (DAC) portion having a CO2 adsorption device having a CO2 adsorption material and a blower electrically coupled to the power generation unit, the blower directing a flow of air through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange pathway for releasing adsorbed CO2 in a carbon release mode.

A mounting mat for mounting a pollution control element into a housing wherein the mounting mat is needle-punched or stitch-bonded and has a thickness of from about 8.0 mm to 15.0 mm, preferably from 8.8 mm to 15.0 mm, more preferably from 10.0 mm to 15.0 mm, and a bulk density from 160 kg / m 3 to 180 kg / m 3 , and contains at least by 50 % by weight of polycrystalline fibers preferably at least 75 % by weight (based on the weight of the mat), preferably Al2O3 and less SiO2, and has a total organic content of less than 2.9 % (measured per LOI), preferably from 0.6 % to 2.6 %, preferably surface additives like wax or oil, wherein the mat has a canning force (Fc) of less than 5700 N, preferably less than 4500 N, for example from 3000 to 4500 N as measured according to the test described in the method section. Also provided are methods of making such mats and pollution control devices containing them.

The present invention provides a heat insulation device for an engine exhaust pipe, belonging to the technical field of engine exhaust pipes. The heat insulation device for the engine exhaust pipe includes an exhaust structure and a heat insulation structure. The exhaust structure includes an exhaust pipe and a connecting column, and the connecting column is fixed on the exhaust pipe. The heat insulation structure includes a heat insulation cover and a heat insulation sleeve. The heat insulation sleeve is fixed between the heat insulation cover and a fixing plate. The heat insulation sleeve includes a high-temperature resistant cloth, an aluminum foil cloth, a wire mesh and an inorganic fiber felt. The aluminum foil cloth is fixed on one side of the high-temperature resistant cloth. The inorganic fiber felt is fixed between the wire mesh and the fixing plate. The heat insulation cover, the fixing plate and the heat insulation sleeve are installed on the exhaust pipe. The present invention can effectively reduce the high temperature generated by the engine exhaust pipe, increase the accessibility of the engine, reduce heat radiation, reduce the probability of scalding caused by accidental touch, and is safer and more reliable to use.

An exhaust muffler (100,fig.1) comprising a baffle 101 dividing an internal volume of the muffler. The muffler has an outer skin 104 and an inner skin 103. The inner skin at least partially surrounds

An article comprising a plurality of layers or in form of powder or slurry, the layers comprising: one or more nonwoven layers (16) of powder or slurry; wherein each of the one or more nonwoven layers or powder or slurry has a temperature resistance of about 800° C. or greater; and wherein the article is adapted to provide thermal insulation for an exhaust pipe. The layer is between an inner wall (14) and outer wall (12) of a double-wall exhaust pipe (10).

A fluid injector for injecting an injection fluid into a hot flow can include a flow structure (101) defining an injection flow channel and configured to extend at least partially into a flow path to introduce the injection fluid into the hot flow in the flow path. The flow structure can include one or more heat resistance features to protect the flow structure and the fluid from heat of the hot flow.

An exhaust muffler includes a hollow body at least partially housing an exhaust pipe. The exhaust pipe is adapted to allow exhaust gas to flow therethrough. Further, the exhaust pipe defines a plurality of apertures on the exhaust pipe such that exhaust gas flowing through the exhaust pipe can flow out of the exhaust pipe within the hollow body through the plurality of apertures and / or back into the exhaust pipe from the hollow body. The secondary tube is disposed within the hollow body and is filled with a sound absorbing material. At least one baffle is engaged with the exhaust pipe and the secondary pipe to allow at least one of the exhaust pipe and the secondary pipe to pass therethrough.

A system for generating electricity with reduced or negative carbon emissions. The system includes a power plant section having an electricity generating unit having an input coupled to a hydrocarbon fuel supply and an energy exchange path. The system also includes a direct air capture (DAC) section having a CO2 adsorption device having a CO2 adsorbent material and a ventilator electrically coupled to the electricity generating unit, the ventilator directing air flow through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange path for releasing adsorbed CO2 in a carbon release mode.

The invention relates to a method for producing a molded part from glass fiber and / or mineral fiber material with an inorganic binder. The inorganic binder is cured using electromagnetic radiation in order to form the molded part. The tool is designed to be at least partly permeable for the electromagnetic radiation for curing purposes, and the inorganic binder is a binder which can be cured by electromagnetic radiation. The invention further relates to a molded part which can be obtained in the aforementioned manner. Finally, the invention relates to a manufacturing unit for producing a molded part from glass fiber and / or mineral fiber material and an inorganic binder. The manufacturing unit comprises a device for providing a tool for forming the molded part, a device for introducing the glass fiber and / or mineral fiber material and the inorganic binder into the tool, a device for generating electromagnetic radiation to cure the inorganic binder in order to form a molded part, and optionally a device for removing the molded part from the tool.

An exhaust system component comprises a housing including an inner surface having a first longitudinal axis, a core positioned within the housing and including an outer surface circumferentially extending about a second longitudinal axis offset from the first axis, and a mat positioned within the housing and compressed between the core and the housing. The mat is wrapped about an outer surface of the core more than one revolution such that a first circumferentially extending zone exists where the mat is x layers thick and a second circumferentially extending zone exists where the mat is x+1 layers thick. The second longitudinal axis is offset from the first longitudinal axis in a direction toward the first circumferentially extending zone.

System (1) for providing an operating fluid in a motor vehicle (2), comprising a tank (3) in which the operating fluid is stored and a dispensing point (4) at which the operating fluid can be provided, as well as comprising a conveying module (5) which is designed to convey and / or meter the operating fluid from the tank (3) to the dispensing point (4), wherein the conveying module (5) has a first conveying module unit (6) and a second conveying module unit (7), wherein the first conveying module unit (6) is arranged on the tank (3) and wherein the second conveying module unit (7) is arranged at a distance from the tank (3) and is connected to the first conveying module unit (6) by at least one line (8), wherein the conveying module (5) has a conveying pump (9) for conveying the operating fluid, wherein the conveying pump (9) is arranged in the second conveying module unit (7).

An exhaust muffler includes a hollow body and an exhaust pipe disposed at least partially within the hollow body. The hollow body defines a first set of apertures on the hollow body, and the exhaust pipe defines a second set of apertures and a third set of apertures on the exhaust pipe. The exhaust pipe has an inner surface and an outer surface, wherein the inner surface defines a main exhaust gas flow path (P). At least one divider allows the exhaust pipe to pass therethrough and also divides the hollow body into a first chamber and a second chamber. The first chamber defines a reservoir fluidly associated with the main exhaust gas flow path (P) via the second set of orifices and leading to the environment via the first set of orifices, and the second chamber is fluidly associated with the main exhaust gas flow path (P) via the third set of orifices.

A hand-held work device comprises an internal combustion engine (8) and an exhaust silencer (23). The exhaust silencer (23) includes a first silencer chamber (47) and a second silencer chamber (48). The exhaust silencer (23) includes an exhaust aftertreatment device (26) comprising at least one flow-through unit (31). The flow-through unit (31) is arranged in a flow path from the first silencer chamber (47) to the second silencer chamber (48). The thickness (b) of the flow-through unit (31), measured from an upstream end face (36) to a downstream end face (37) of the flow-through unit (31) in the area through which exhaust gas flows, is at least 10 mm over at least 70% of the cross-section. The exhaust aftertreatment device (26) does not have a catalytically active coating.

An exhaust assembly (1) for an internal combustion engine (40) is disclosed. The exhaust assembly (1) comprises a housing (3) comprising an exhaust inlet (11), an exhaust outlet (12), and an inner surface (3') delimiting an inner volume (V) of the housing (3). The exhaust assembly (1) further comprises an exhaust aftertreatment unit (u1) arranged inside the inner volume (V). The exhaust aftertreatment unit (u1) comprises an outlet (u1'') fluidly connected to the inner volume (V) of the housing (3). The exhaust assembly (1) further comprises at least one perforated wall (w1, w2) arranged inside the inner volume (V) of the housing (3) and a noise attenuating material (9, 9') placed between the at least one perforated wall (w1, w2) and the inner surface (3') of the housing (3). The present disclosure further relates to an internal combustion engine (40) and a vehicle (2) comprising an internal combustion engine (40).

Various implementations include a muffler including a shell and a tube assembly. The shell defines a shell cavity and has a shell longitudinal axis, a shell first end, and a shell second end. The shell first end and the shell second end each define a shell opening extending to the shell cavity. The tube assembly is disposed within the shell cavity. The tube assembly includes three or more nested tubes. Each of the three or more nested tubes has a tube longitudinal axis parallel to the shell longitudinal axis, a tube first end, and a tube second end. Each of the three or more nested tubes defines a plurality of perforations. The three or more nested tubes are disposed circumferentially adjacent each other around the shell longitudinal axis such that portions of sides of the three or more nested tubes form an open portion extending along the shell longitudinal axis.

System for interconnecting a urea-based reducing agent injector to an exhaust gas post-treatment device including an injector, a flange arranged to couple the injector to an exhaust gas line, a gasket arranged between the injector and the flange, wherein the gasket is a sandwich, formed by two external layers and an intermediate layer formed by insulating material.

A system for generating electricity with reduced or negative carbon emissions. The system includes a power plant section having an electricity generating unit having an input coupled to a hydrocarbon fuel supply and an energy exchange path. The system also includes a direct air capture (DAC) section having a CO2 adsorption device having a CO2 adsorbent material and a ventilator electrically coupled to the electricity generating unit, the ventilator directing air flow through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange path for releasing adsorbed CO2 in a carbon release mode.

System for interconnecting a urea-based reducing agent injector to an exhaust gas post-treatment device comprising an injector (UJ), a flange (FL) arranged to couple the injector to an exhaust gas line, a gasket (G) arranged between the injector and the flange, wherein the gasket is a sandwich, formed by two external layers (SI, S3) and an intermediate layer (S2) formed by insulating material. The Third layer of the gasket confines an air volume (V) surrounding the injector (UJ).

An apparatus for discharging condensate water from an exhaust system includes a housing configured to be secured to a piping component of the exhaust system and having an inlet in fluid communication with the piping component and an outlet to the atmosphere. An inlet and an outlet are arranged spaced apart from each other, and a discharge element formed of a porous material is arranged in the housing between the inlet and the outlet.

The present disclosure relates to an installation structure of a valve, which includes a setting portion, a valve, and a buffer portion. The valve seat of the valve has a cylindrical connecting portion, and the cylindrical setting portion is inserted into the connecting portion, or the connecting portion is inserted into the setting portion. The buffer portion is disposed between the setting portion and the connecting portion, and the buffer portion is fixed to the setting portion and the connecting portion respectively. In this case, when either one of the setting portion and the connecting portion is set as the first portion and the other is set as the second portion, the first portion has a peripheral wall and an opening portion where the peripheral wall is not formed. At least a part of the fixing portion that fixes the second portion and the buffer portion is disposed at a position adjacent to the opening portion in the radial direction of the setting portion.

An exhaust muffler includes a hollow body that at least partially houses an exhaust pipe. The exhaust pipe is adapted to allow a flow of exhaust gases therethrough. Further, the exhaust pipe defines a plurality of orifices on the exhaust pipe such that the exhaust gases flowing through the exhaust pipe can flow out of the exhaust pipe within the hollow body and / or flow back into the exhaust pipe from the hollow body through the plurality of orifices. A secondary pipe is disposed within the hollow body and filled with a sound absorbing material. At least one baffle is engaged with the exhaust pipe and the secondary pipe to allow at least one of the exhaust pipe and the secondary pipe to pass therethrough.

Various embodiments include a muffler having a housing and a tube assembly. The housing defines a housing cavity and has a housing longitudinal axis, a housing first end, and a housing second end. The housing first end and the housing second end each define a housing opening extending to the housing cavity. A tube assembly is disposed within the housing cavity. The tube assembly includes three or more nested tubes. Each of the three or more nested tubes has a tube longitudinal axis parallel to the housing longitudinal axis, a tube first end, and a tube second end. Each of the three or more nested tubes defines a plurality of perforations. The three or more nested tubes are disposed circumferentially adjacent to each other about the longitudinal axis of the housing such that a portion of a side of the three or more nested tubes forms an open portion extending along the longitudinal axis of the housing.

Protective device for a vehicle component. Protective device (51) for a vehicle component (81) (100), in particular intended to at least partially cover a vehicle component (81) (100), in particular a catalytic reduction treatment system (5) for an engine (3), the device being characterized in that it comprises a protective cover (52) and an attachment system (60) for an electrical connection cable (82), the attachment system (60) being mechanically linked to the protective cover (52), the attachment system (60) comprising at least one attachment element (61), and in that it comprises a layer (55) of at least one thermally insulating material, intended to be disposed between said vehicle component (81) and said cover (52) and the attachment system (60). Figure for the abstract: 4

Provided is a gripping material for an exhaust gas purification device that can prevent a catalyst carrier from falling off from a casing. [Solution] The gripping material for exhaust gas purification equipment includes an inorganic fiber molded body made of inorganic fibers and does not contain a binder. The inorganic fiber molded body has needle marks extending in a thickness direction, and the needle marks include warp threads made of the inorganic fibers extending in the thickness direction, Needle mark density: 8.0 to 18.0 pieces / cm 2 and Effective warp thread count: 2.8-6.0 threads / cm 2 and The effective warp threads refer to all warp threads protruding from one peeled surface and the other peeled surface within an area of ​​50 mm x 50 mm when the peeling method described below is carried out, and have a diameter of 100 μm or more and a protruding length of 2 mm or more.

A system for generating electricity with reduced or negative carbon emissions. The system includes a power plant section having an electricity generating unit having an input coupled to a hydrocarbon fuel supply and an energy exchange path. The system also includes a direct air capture (DAC) section having a CO2 adsorption device having a CO2 adsorbent material and a ventilator electrically coupled to the electricity generating unit, the ventilator directing air flow through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange path for releasing adsorbed CO2 in a carbon release mode.

An exhaust gas purification catalyst provides excellent removal performance of methane, which is chemically stable. Exhaust gas purification catalyst includes a substrate that divides cells through which an exhaust gas flows and a catalyst layer that is provided on a surface of the substrate. The catalyst layer includes a palladium layer containing palladium that extends from a first end part which is an end part on the side into which an exhaust gas in the cells flows to a second end part which is an end part on the side from which an exhaust gas flows out, a platinum layer containing platinum that extends from the second end part to the first end part, and a rhodium layer containing rhodium that is laminated with both the palladium layer and the platinum layer.