Abstract

An exhaust system (1) for a motor vehicle includes an exhaust gas-purifying device (2) for purifying exhaust gas (3) removed from an internal combustion engine with a reducing agent feed (4), which is arranged downstream and at a spaced location from the exhaust gas-purifying device (2) and by which a reducing agent can be introduced into the exhaust system (1). A reducing agent-deflecting device (7) is arranged between the exhaust gas-purifying device (2) and the reducing agent feed (4). The reducing agent-deflecting device (7) has at least one reducing agent-deflecting element (8) of a blade-like design.

IPC Classes  ?

• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 3/28 - Construction of catalytic reactors

Abstract

An internal combustion engine exhaust system muffler (1) has a housing (2) within which two chambers (3) are formed with an inner panel (4) arranged therebetween. The inner panel (4) has at least one collar (8) at the edge, which has an outer side (9) facing the housing (2), and wherein the housing (2) has, on an inner side (11), in the area of the inner panel (4), at least one contour (12), which faces the collar (8) and with which the collar (8) is in contact. Reduced noise generation, reduced wear as well as prolonged service life can be achieved with the outer side (9) of the collar (8) forming a cone structure (10) in profile and the contour (12) of the housing (2) forms a cone structure seat (13) with a complementary cone profile and with which the cone (10) is flatly and non-positively in contact.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

An electric exhaust gas valve device (1) controls a flow cross section (5) of an exhaust pipe (6) of an exhaust system (8) of an internal combustion engine. The valve device includes an electric drive (2) driving a driven shaft (9) rotatingly about an axis of rotation (10). An exhaust gas valve (3) has a drive shaft (12) aligned coaxially to and rotatable about the axis of rotation for controlling the cross section. A coupling device (4) transmits torques between the driven shaft and the drive shaft and includes a connection element connected to the drive shaft, a transmission element (16) connected to the driven shaft and the connection element with a prestressing spring (18) supported axially on the connection element and/or on the drive shaft as well as on the transmission element and axially driving the transmission element against the driven shaft to reduce thermal load.

IPC Classes  ?

• F02D 9/04 - Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
• F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
• F02D 9/06 - Exhaust brakes
• F02D 9/10 - Throttle valves specially adapted thereforArrangements of such valves in conduits having pivotally-mounted flaps
• F16K 1/22 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
• F02M 26/54 - Rotary actuators, e.g. step motors
• F02M 26/70 - Flap valvesRotary valvesSliding valvesResilient valves

Abstract

A muffler (1) for an exhaust system of an internal combustion engine has a housing (2) with an expansion chamber (6). An inlet pipe (7) extends into the housing (2) and has an end section (8) with an outlet opening (9) to the expansion chamber (6). A main outlet pipe (10) has an initial section (11) protruding into the end section (8) of the inlet pipe (7). A secondary outlet pipe (15) has an inlet opening (16) in the expansion chamber (6). A gap (14) in an overlapping area (13) between the end section (8) and the initial section (11) forms a bypass in the end section (8) of the inlet pipe (7), which bypasses the initial section (11) of the main outlet pipe (10). Through the bypass gap (14), exhaust gas flows from the inlet pipe (7) into the expansion chamber (6) and out the secondary outlet pipe (15).

IPC Classes  ?

• F01N 1/16 - Silencing apparatus characterised by method of silencing by using movable parts
• F01N 1/04 - Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
• F01N 1/24 - Silencing apparatus characterised by method of silencing by using sound-absorbing materials

Abstract

An exhaust gas treatment device (1), for an exhaust system of an internal combustion engine, is equipped with a housing (2). At least one mounting pipe (3), which contains a mounting space (4), is arranged within the housing. At least one cartridge (5) is arranged replaceably in the mounting space (4) and has a cartridge pipe (6) as well as at least one exhaust gas treatment element (7) arranged in the cartridge pipe (6). The cartridge pipe (6) is supported axially under axial prestress at an annular step (9) at least on an axial front side (31) via at least one spring element (27).

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 3/28 - Construction of catalytic reactors
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
• F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
• F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous

Abstract

A connection pipe (7), for the fluidic connection of a muffler housing (5) of an active muffler (4) with an exhaust gas-carrying pipe (3) of an exhaust line (2) of an exhaust system (1) for an internal combustion engine, of a motor vehicle, has a pipe wall (8), which envelopes a connection space (9) leading from the muffler housing to the exhaust pipe. A cooling pipe (14), through which a coolant can flow, has an inlet section (15) and an outlet section (16) and is arranged in the connection space. The inlet section (15) passes through the pipe wall (8), whereby a coolant inlet (17), through which coolant can enter the cooling air pipe, is arranged outside the connection pipe (7). The outlet section passes through the pipe wall, whereby a coolant outlet (19), through which coolant can escape from the cooling pipe, is arranged outside the connection pipe (7).

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing
• F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
• F01N 1/06 - Silencing apparatus characterised by method of silencing by using interference effect
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

A method for fastening a metallic bushing (3) to a metallic component (2) includes forming a ring-shaped contact surface (5) on the bushing, forming an opening (6) in the component and providing a collar (7) extending circumferentially along the opening in the component and projecting on a mounting side (8) of the component. The mounting side is brought into contact and pressed in the area of the opening in the component such that the contact surface touches the collar. The bushing (3) is pressed on the mounting side (8) of the component in the area of the opening (6), so that the contact surface is in contact with the collar under prestress. With the contact surface (5) in contact with the collar under prestress, the bushing (3) and the component (2) are resistance welded together in the area of the contact between the contact surface (5) and the collar (7).

IPC Classes  ?

• B23K 11/34 - Preliminary treatment
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• F16B 37/06 - Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• B23K 11/093 - Seam welding not restricted to one of the preceding subgroups for curved planar seams
• B23K 11/02 - Pressure butt welding
• B23K 101/00 - Articles made by soldering, welding or cutting

Abstract

An exhaust gas treatment device (1), for an exhaust system of an internal combustion engine, includes a tubular housing (2) and an insert (5) arranged replaceably in the housing (2). The insert (5) has an exhaust gas treatment element (7) fixed in a tubular jacket (6) and is able to be pushed into the housing (2) in a pushing-in direction (9), which extends parallel to a central longitudinal axis (10) of the housing (2). The jacket (6) has, on an outer side (15), an axial stop (14), axially in contact with an axial counterstop (18) in the pushing-in direction (9) and is formed on the housing (2) on an inner side (17). A locking element (19) is axially supported on a support contour (20), is formed on the jacket (6) in the pushing-in direction (9), and is provided on the inner side (17) of the housing.

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
• F01N 3/28 - Construction of catalytic reactors

Abstract

The invention relates to a mixer for a device for selective catalytic reduction of exhaust gases from internal combustion engines. The mixer comprises a structure of mixer elements through which the mixture of exhaust gas and reducing agent is to flow. The mixer elements have an electric current flowing through them for electrical heating due to the electrical resistance thereof. The invention further relates to a device for selective catalytic reaction of exhaust gases from an internal combustion engine having an exhaust gas pipe leading to a mixer according to the invention and having a reducing agent pipe which is connected to a reservoir for reducing agent and which opens into the exhaust gas pipe in the flow direction upstream of the mixer, and a catalyst in the flow direction downstream of the mixer.

IPC Classes  ?

• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
• F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 3/28 - Construction of catalytic reactors
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• B01F 15/06 - Heating or cooling systems

Abstract

An arrangement (6) of a pipe (5) on a funnel (4) has a pipe interior space (8) fluidically connected with a funnel interior space (9). The funnel has an integral connection piece (10) with two axial openings (12) in the circumferential direction (11). A connecting sleeve (14), which has a clamping collar (15), which tapers towards the funnel and is formed integrally in one piece with the connecting sleeve (14), is attached to the connection piece on the outside thereof. The pipe is attached to the connection piece with an end section (16) facing the funnel. The end section has a counterclamping collar (17), which is formed integrally in one piece therewith and tapers away from the funnel. A clamp connection (7) has a clamp (18) with a ring-shaped connecting body (19) extending over the clamping collar (15) and the counterclamping collar (17) and prestresses these axially towards one another.

IPC Classes  ?

• F16L 17/00 - Joints with packing adapted to sealing by fluid pressure
• F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
• F16L 13/02 - Welded joints
• F16L 21/06 - Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A method for manufacturing an exhaust gas treatment device (1), which has at least one ceramic substrate body (3, 4) for exhaust gas treatment in a tubular housing (2), includes inserting the substrate body (3) axially into the housing (2). An axial support (13), which has a supporting ring (14) and a ring-shaped support element (15) held by the supporting ring (14), is inserted axially into the housing (2) and is positioned therein such that the axial support (13) transmits a predetermined axial force (28) to the substrate body (3) via the support element (15). The axial support (13) is fixed to the housing (2) with the axially prestressed (predetermined axial force) positioning, in which the supporting ring (14) is welded to the housing (2).

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
• F01N 3/18 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl
• F01N 3/28 - Construction of catalytic reactors
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features

Abstract

An assembly unit 1 of an exhaust system has at least one and particularly two connection funnels 2 made of cast material and a pipe 3. The at least one connection funnel 2 has a pipe socket 21 and at least one bracket 22. The bracket 22 is arranged outside of the pipe socket 21. A connection section 31 of the pipe 3 is fastened to the bracket 22 of the at least one connection funnel. The pipe socket 21 extends beyond the connection section 31 of the pipe 3 into the interior of the pipe 3 and is spaced apart from an inner wall of the pipe 3 by at least the simple wall thickness of the pipe 3.

IPC Classes  ?

• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F16L 13/02 - Welded joints
• F16L 25/10 - Sleeveless joints between two pipes, one being introduced into the other
• F16L 25/14 - Joints for pipes of different diameters or cross-section
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

An injection section (12) of an exhaust system for an internal combustion engine, with a channel (13) for guiding an exhaust gas flow (3), with an injection port (14), laterally on the channel to which a liquid or gas injector (15) can be connected, and with an injection chamber (16), formed in the channel in the area of the injector port. The chamber is defined by a perforated, first flow through partition (17), arranged in the channel upstream of the injector port relative to the exhaust gas flow and, and by a perforated, second flow through partition, arranged in the channel downstream of the injector port relative to the exhaust gas flow. Improved mixing and/or evaporation is achieved with the perforation portion of the first partition generating at least two partial exhaust gas flows (20, 21), which form two mutually opposite flow swirls (22, 23).

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features

Abstract

An exhaust gas treatment device (1) includes a combustion waste gas inlet pipe (2), an outlet pipe, an essentially gas-tight inner housing (7) fluidically connected with the inlet pipe and fluidically connected with the outlet pipe. The inner housing receives a particle filter (4). A connection element (9) is arranged in a connection area (8) of the inner housing. The connection area fluidically faces the outlet pipe (3), for mechanically connecting the particle filter with the inner housing. An oxidation catalytic converter (5) is arranged upstream of the particle filter in the inner housing for catalyzing an oxidation reaction of the combustion waste gas. A counterpressure monitoring point (10, 11, 12) is provided fluidically between the oxidation catalytic converter and the connection element for measuring a counterpressure exerted by the particle filter during the operation of the treatment device. An internal combustion engine (24) is provided with the treatment device.

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
• F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation

Abstract

An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which has a jacket (3) extending circumferentially on the side and two end-side end bottoms (4, 5). Maintenance is simplified with at least one mounting tube (6), which passes through one or the first end bottom (4) and into the outlet end (8) of which a particle filter (7) is plugged axially from the outside, with a deflecting housing (9). The deflecting housing (9) contains a deflecting chamber (10), and has at least one inlet (11) communicating with the deflecting chamber (10) and at least one outlet (12) communicating with the deflecting chamber (10). A fastening device (13) is provided for detachably fastening the respective inlet (11) at the respective outlet end (8) of the mounting tube (6).

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
• F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling

Abstract

A mixing and/or evaporating device (12) for an exhaust system (5) of an internal combustion engine (1) encloses in the circumferential direction a cross section, through which flow is possible. The device (12) has two mutually opposite long side walls (21, 22) and two mutually opposite short side walls (23, 24). The short side walls (23, 24) connect each the two long side walls (21, 22) to one another. A plurality of guide blades (25), which project in the direction of the other long side wall (21, 22) and are set at an angle in relation to the axial direction (20), are arranged at at least one axial end (26, 27) at at least one long side wall (21, 22). Additional guide blades (29) are arranged at at least one long side wall (21, 22) at a distance (s) in the axial direction (20) from an axial end (26).

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• B01F 5/04 - Injector mixers
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• F01N 3/28 - Construction of catalytic reactors

Abstract

An air gap-insulated exhaust manifold (10) for a supercharged internal combustion engine (1), preferably of a motor vehicle has an engine flange (11) fastening the exhaust manifold to an engine block (2) and a turbine flange (12) fastening the exhaust manifold to a turbine (8) of an exhaust gas turbocharger (7). Two inner pipes (13, 14) lead from an inlet opening, for exhaust gas, adjacent to the engine flange to an outlet opening (18), for exhaust gas, adjacent to the turbine flange. An outer pipe (15) envelopes the two inner pipes, forming an air gap insulation (21), and extends from the engine flange to the turbine flange. A separation partition (16) separates, in the interior space (22) of the outer pipe, two interior spaces (23, 24), in which one each of the two inner pipes is arranged. Reduced wear is achieved with the partition arranged loosely at the turbine flange.

IPC Classes  ?

• F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
• F02B 37/00 - Engines characterised by provision of pumps driven at least for part of the time by exhaust
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation
• F01N 13/16 - Selection of particular materials
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F02B 37/02 - Gas passages between engine outlet and pump drive, e.g. reservoirs
• F02B 67/10 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus

Abstract

An exhaust system (1) of an internal combustion engine includes an oxidation catalytic converter (2), a particle filter (3), an injector (4) for injecting a reducing agent, a static mixer-evaporator (5), an SCR catalytic converter (6) and a housing (8). The oxidation catalytic converter is upstream of the particle filter and upstream of the SCR catalytic converter. The injector is upstream of the mixer-evaporator and the mixer-evaporator is upstream of the SCR catalytic converter. The housing has a centrally inner channel (9), a ring channel (10) concentrically around the inner channel, an eccentrically outer channel (11), a first deflecting chamber (12) connecting the outer channel with the ring channel and a second deflecting chamber (13) connecting the inner channel with the ring channel. The mixer-evaporator is in the inner channel and the oxidation catalytic converter or particle filter or SCR catalytic converter is ring-shaped and in the ring channel.

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 3/28 - Construction of catalytic reactors
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 3/035 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus

Abstract

A road vehicle (1) has a drive unit (2) for driving the vehicle (1), a drive unit control device (3) for driving the drive unit (2) and at least one sound generator (4), which has at least one electroacoustic converter (10). The sound generator (4) has an emission pipe (16), which connects the sound generator (4) acoustically and fluidically directly with an emission chamber (17). The an emission chamber (17) emits the sound generated by the converter (10) during the operation of the sound generator (4). Increased reliability of operation is achieved if a generator control device (26) is coupled with the drive unit control device (3) for driving the converter (10) and the generator control device (26) drives the converter (4) as a function of the current operating state of the drive unit (2).

IPC Classes  ?

• H04R 27/00 - Public address systems
• H04R 1/02 - CasingsCabinetsMountings therein
• G10K 11/22 - Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
• G10K 15/02 - Synthesis of acoustic waves

Abstract

An exhaust system component (1), for an exhaust system of an internal combustion engine, includes a metallic first part (3), which is inserted into a metallic second part (2), such that an inner jacket section (7) of the first part (3) is arranged coaxially in an outer jacket section (5) of the second part (2), as well as at least one weld joint (10), which permanently connects the outer jacket section (5) to the inner jacket section (7). To simplify the assembly of the parts (2, 3) with one another, a plurality of centering contours (11, 12) are formed integrally on the outer jacket section (5), projecting inwardly, and/or are formed integrally on the outer jacket section (7), projecting outwardly, and are located at spaced locations from one another in the circumferential direction (6). The centering contours center the inner jacket section (7) in the outer jacket section (5).

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 3/24 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
• F01N 3/28 - Construction of catalytic reactors
• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters

Abstract

A sound generator (1) for an exhaust system (2) of an internal combustion engine of a motor vehicle (3) includes a housing (4), with an electroacoustic converter (5) having a membrane (6) separating a housing rear volume (9) from a housing front volume (10). A connection pipe (11) connects the front volume (10) of the sound generator (1) to an exhaust gas-carrying exhaust gas line (12) fluidically and acoustically. To reduce the risk of damage to the membrane (6), for example, in case the housing (4) becomes flooded, a pressure equalization line (15) is connected by a proximal end (16) to the housing (4) on the outside and is connected fluidically with the rear volume (9) through an opening (18) in the housing. A distal end (17) of the pressure equalization line (15) is at a spaced location from the housing (4).

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• F01N 1/06 - Silencing apparatus characterised by method of silencing by using interference effect
• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

Insulation (10) for vehicle components, for example, exhaust systems such as particle filters and SCR systems. The insulation has a plate-like component (12). The insulation can be fasted in an especially cost-effective manner by welding. The insulation (10) has at least one separate support (16).

IPC Classes  ?

• F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation
• F02B 77/11 - Thermal or acoustic insulation

Abstract

A heat exchanger (28) has a first inlet (29) and a first outlet (30), which are fluidically connected with one another via a first path (31) carrying for a first medium to be cooled. A second inlet (32) and a second outlet (33) are fluidically connected with one another via a second path (34) carrying a second medium. A third inlet (35) and a third outlet (36) are fluidically connected with one another via a third path (37) carrying a third medium. The first path (31) is coupled with the second path (34) and with the third path (37) in a heat-transferring manner and in such as way that the media are separated. The heat-transferring coupling between the first path and the second path takes place upstream of the heat-transferring coupling between the first path and the third path relative to the direction of flow of the first medium.

IPC Classes  ?

• F02B 47/08 - Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being other than water or steam only the substances including exhaust gas
• F28F 1/00 - Tubular elementsAssemblies of tubular elements
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
• F02M 25/07 - adding exhaust gases
• F28D 7/02 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
• F28F 1/36 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically-wound fins or wire spirals
• F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely

Abstract

A mixer/evaporator or an exhaust system (5) of an internal combustion engine (1), includes a carrier (20) surrounding, in a circumferential direction, a flat cross section of a mixing/evaporating device (12), through which exhaust gases flow and which extends at a right angle to the axial direction (17). The carrier has opposite side walls, wherein short side walls (23, 24) connect each long side walls (21, 22) to one another. Guide blades (25) project in a direction of the respective opposite long side wall, are set at an angle in relation to the axial direction and are arranged at one of the long side walls at least one axial end (26, 27). An axial end of the first long side walls is offset in the axial direction in relation to the axial end of the second long side wall on the same side of the mixing/evaporating device.

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing
• F01N 3/18 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl
• B01F 5/04 - Injector mixers
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• F01N 3/28 - Construction of catalytic reactors
• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features

Abstract

A flexible line element (14), for an exhaust system (4) of an internal combustion engine (1), especially of a motor vehicle, includes a metal bellows (15), which is corrugated in a ring-shaped or helical pattern and through which an exhaust gas stream (8) can flow. The risk of deposition of urea and/or urea derivatives in the metal bellows (15) is reduced by a conical flow guide body (16), through which the exhaust gas stream (8) can flow, and which tapers in the direction of flow of the exhaust gas stream and which protrudes into an inlet area (17) of the metal bellows (15). The flexible line element (14) is combined with the flow guide body (16) integrated therein.

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 3/28 - Construction of catalytic reactors
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are fluidically connected with one another via a primary path (37) carrying a primary medium through the ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control (39) controls the flow of the primary medium through the primary path (37) and through the bypass path (38). At least two secondary inlets (42) and two secondary outlets (43) are fluidically connected with one another via at least two secondary paths (44) for carrying at least one secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner and such that the media are separated from one another.

IPC Classes  ?

• F02M 25/07 - adding exhaust gases
• F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
• F28D 7/02 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
• F28F 1/36 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically-wound fins or wire spirals
• F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
• F02M 26/28 - Layout, e.g. schematics with liquid-cooled heat exchangers
• F02M 26/32 - Liquid-cooled heat exchangers

Abstract

A heat exchanger (5) includes a housing (31), which contains a tube (32) and has a jacket (33), which surrounds the tube (32) while forming a ring channel (34). A primary inlet (35) and a primary outlet (36) are connected to one another fluidically via a primary path (37) carrying a primary medium through ring channel (34) and via a bypass path (38) carrying the primary medium through the tube (32). A control device (39) controls the flow of the primary medium through the primary path (37) and the bypass path (38). A secondary inlet (42) and a secondary outlet (43) are connected to one another fluidically via at least two secondary paths (44) for carrying a secondary medium. The primary path (37) is coupled with the secondary paths (44) in a heat-transferring manner with the media separated from one another.

IPC Classes  ?

• F02M 25/07 - adding exhaust gases
• F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
• F28D 7/02 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
• F28F 1/36 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically-wound fins or wire spirals
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
• F02M 26/28 - Layout, e.g. schematics with liquid-cooled heat exchangers
• F02M 26/32 - Liquid-cooled heat exchangers

Abstract

A heat exchanger (7) for an exhaust system (5) of an internal combustion engine (1), includes a heating tube (16) for carrying hot exhaust gas and a cooling tube (17) for carrying a liquid cooling agent. A thermoelectric generator (13) generates an electric voltage from a temperature difference and is arranged with the adjacent tubes in a stacking direction (18) to form a stack (21). A support tube (28) is supported in the stacking direction on wall sections (29) of the respective tube (16, 17), which wall sections mutually face each other, and is arranged in the respective heating tube (16) and/or cooling tube (17). Increased energy efficiency is achieved if at least two support tubes (28), which differ from one another by tube length and/or tube end (30) and/or by tube cross sections, are arranged in the respective tube (16, 17) at right angles to a longitudinal direction (31).

IPC Classes  ?

• F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups

Abstract

A flexible line segment for the exhaust system of an internal combustion engine, with an annularly corrugated or helically corrugated metallic bellows, for exhaust gas flow therethrough, and a line segment arranged upstream in reference to the metallic bellows, with a precipitation device provided in the line section, arranged upstream in reference to the metallic bellows or mounted thereat. The precipitation device is provided for urea derivatives or urea entrained in an edge layer of the exhaust gas flow from an oversaturated edge layer of the exhaust gas flow.

IPC Classes  ?

• B01D 49/00 - Separating dispersed particles from gases, air or vapours by other methods
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F16L 27/111 - Adjustable jointsJoints allowing movement comprising a flexible connection only the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced

Abstract

A thermoelectric module (13), for converting thermal energy into electric energy, includes a plurality of leg pairs (26), which have each a p-doped semiconductor leg (27) and an n-doped semiconductor leg (28), which are contacted with one another electrically via metal bridges (29). At least one electrically insulating ceramic plate (30), which is arranged on a hot side (18) of the thermoelectric module (13) or on a cold side (19) of the thermoelectric module (13) and is flatly in contact with metal bridges (29) associated with this side (18, 19) and is fastened thereto. The pressure stability of the thermoelectric module (13) can be improved if the respective ceramic plate (30) is segmented, so that a plurality of ceramic plate segments (31) are arranged next to each other, which are each flatly in contact with a plurality of metal bridges (29) and are fastened thereto.

IPC Classes  ?

• H01L 35/32 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the structure or configuration of the cell or thermocouple forming the device
• H01L 35/04 - Structural details of the junction; Connections of leads

Abstract

A steam generator (1) is provided for a Rankine cycle, especially for a waste heat recovery device (37) of an internal combustion engine (36), and preferably in a motor vehicle. The steam generator includes: a heat exchanger channel (2), in which a heat exchanger (3) is arranged, and a bypass channel (4) for bypassing the heat exchanger channel (2). A heating fluid can flow through the heat exchanger channel (2) and bypass channel (4) during the operation of the steam generator (1). A medium to be evaporated can flow through the heat exchanger (3) during operation of the steam generator (1). A compact structural shape with high energy efficiency is achieved with the heat exchanger channel (2) enveloping the bypass channel (4).

IPC Classes  ?

• F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
• F28F 13/00 - Arrangements for modifying heat transfer, e.g. increasing, decreasing
• F28F 9/26 - Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
• F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
• F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat

Abstract

A muffler unit (1), especially for a motor vehicle, has a two-part housing (4) with first and second housing parts (2, 3) each of a shell-like design. An outlet opening and an inlet opening (5, 6) are provided in the housing (4). An outlet bottom (12) and an inlet bottom (13) are inserted into outlet opening (5) and into the inlet opening (6), respectively. The outlet bottom (12) and inlet bottom (13) are designed each as a cover that can be inserted into outlet opening (5) and inlet opening (6).

IPC Classes  ?

• F01N 13/08 - Other arrangements or adaptations of exhaust conduits

Abstract

A PCM device (1) is provided for an exhaust system of an internal combustion engine, especially of a motor vehicle. A simplified installation of the PCM device (1), with reduced heat stresses, is achieved through the provision of at least one storage plate (2), which has two plate bodies (3, 4), which follow each other, enclose a storage space (7) filled with heat storage material (18) and have a wave structure (5, 6) each. The wave structure (5) of one plate body (3) extends sloped in relation to the wave structure (6) of the other plate body (4).

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
• F01N 3/28 - Construction of catalytic reactors
• F28D 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
• F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• F28D 20/00 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or

Abstract

An exhaust device (2) for an internal combustion engine (3) has an exhaust line (5) with a rear section X with two exhaust pipes (11) connected to an acoustic actuator (12) in a sound-transmitting manner. Better acoustic characteristics and increased number of noises audible from the outside is guaranteed by the exhaust pipes (11) being of different designs and/or by the actuators (12) being able to be actuated individually. A process for controlling the actuators (12) uses a control device (25) that actuates the actuators (12) individually to generate different acoustic signals (23) of the respective actuators (12). A motor vehicle (1) is provided with such an exhaust device (2) with acoustic actuators (12) controlled by such a process. The motor vehicle (1) has additional actuators (29, 31), which are especially associated with an intake line (30) and are arranged in the interior of motor vehicle (1).

IPC Classes  ?

• F02B 27/04 - Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues in exhaust systems only, e.g. for sucking-off combustion gases
• F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance
• F01N 1/06 - Silencing apparatus characterised by method of silencing by using interference effect
• G10K 15/02 - Synthesis of acoustic waves
• F02M 35/12 - Intake silencers
• F02B 75/22 - Multi-cylinder engines with cylinders in V-, fan-, or star-arrangement

Abstract

An exhaust system component (1) of an exhaust system (2) for an internal combustion engine, especially of a motor vehicle has an inner pipe (3) made of metal, which is exposed to exhaust gas during the operation of the exhaust system (2), a housing (4) made of plastic, which encloses a working space (6), and an outer pipe (5) made of metal. The outer pipe (5) is fastened at a first end area (7) to the inner pipe (3) and is rigidly connected at a second end area (9) to the housing (4) and encloses between these end areas (7, 9) an annular space (10) formed radially between the inner pipe (3) and outer pipe (5).

IPC Classes  ?

• F01N 13/08 - Other arrangements or adaptations of exhaust conduits

Abstract

An exhaust system component (5) is provided for an exhaust system (1) of an internal combustion engine, especially of a motor vehicle, with an inner shell (6), which defines an exhaust-gas-guiding inner area (7), with an outer shell (8), which is arranged on an outer side of the inner shell (6) turned away from the inner area (7), with a cavity formed between inner shell (6) and outer shell (8), and with heat insulation (10) arranged in the cavity (9). The heat insulation of the component (5) includes insulation (10) having at least one microporous molding (molded body) (11).

IPC Classes  ?

• F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
• F01N 13/16 - Selection of particular materials
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F01N 3/05 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
• F01N 13/14 - Exhaust or silencing apparatus characterised by constructional features having thermal insulation

Abstract

A muffler (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which encloses a muffler volume (7) and has at least one flat wall area (6), with at least one inlet tube (3) and with at least one outlet tube (4) and with at least one bracket (5) for fastening the muffler (1) to a holding structure. A lightweight construction is simplified if at least one wall section (11) of such a flat wall area (6) is formed by a flat lightweight panel (12) with sandwich structure.

IPC Classes  ?

• F01N 13/16 - Selection of particular materials

Abstract

A muffler (1) for an exhaust system (2) of an internal combustion engine, especially of a motor vehicle, with a muffler housing (3), which encloses a housing interior space (5), and with at least one exhaust gas-carrying hollow body (4) with two half shells in a half shell construction. The hollow body is arranged in the housing interior space (5). The two half shells (14, 15) of the hollow body (4) are fastened to one another in the area of a separating plane (16). The assembly of the muffler (1) or of the hollow body (4) can be simplified if the two half shells (14, 15) are fastened to one another by fastening elements (17, 18), which are formed directly on the half shells (14, 15).

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing
• F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
• F01N 1/24 - Silencing apparatus characterised by method of silencing by using sound-absorbing materials
• F01N 3/02 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
• F01N 5/00 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F01N 13/10 - Other arrangements or adaptations of exhaust conduits of exhaust manifolds
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

An exhaust gas treatment device (1), which contains at least one exhaust gas treatment insert (2) in a tubular housing (4), especially for an exhaust system of an internal combustion engine. A circumferential geometry of the at least one insert (2) is measured in at least one axial section of the particular insert (2). The at least one insert (2) is inserted axially into the housing (4). The measured circumferential geometry of the at least one insert (2) is taken into account during the deformation of the housing (4).

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• F01N 3/28 - Construction of catalytic reactors
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

A mass damper method includes providing an electroactive polymer (7) and using the electroactive polymer (7) to manufacture a mass damper (6). The mass damper (6) for damping a vibrating system of a motor vehicle includes at least one of a damping body (10) forming a countervibrating mass with a damping spring (11) and a springy damping body (10) forming the countervibrating mass. The damping body (10) is indirectly or directly coupled with the vibrating system. The springy damping body (10) or the damping spring (11) includes an electroactive polymer (7). A motor vehicle exhaust system of an internal combustion engine is provided including an exhaust gas line (3) with an exhaust pipe (4), an exhaust gas-treating device (5) integrated in the exhaust pipe and the mass damper (6) coupled with the exhaust gas line.

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing

Abstract

An exhaust system (3) of an internal combustion engine (2) is provided in a support structure (1), especially in a motor vehicle (1), with at least one exhaust pipe (8), which guides exhaust gas from the internal combustion engine (2) to the environment (4) of the support structure (1). At least one exhaust muffler (5) is provided which has at least one resonance volume (6) and at least one connection line (7), via which the respective resonance volume (6) is connected to the respective exhaust pipe (8) for transmitting airborne sound. A space-saving accommodation is obtained if at least one such resonance volume (6) is formed in a resonance chamber (9) arranged rigidly in or at the support structure (1) and if the respective connection line (7), with which the respective resonance chamber (9) is connected to the respective exhaust pipe (8), is designed as a flexible connection line and permits relative movements between the respective resonance chamber (9) and respective exhaust pipe (8).

IPC Classes  ?

• F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance

Abstract

An exhaust muffler (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, includes two front-side end panels (2) facing away from each other, a circumferential jacket (3) closed in the circumferential direction, at least one exhaust muffler insert (4), with at least one inlet pipe (5) and with at least one outlet pipe (6). At least one of the pipes (5, 6) extends through the jacket (3) into the interior (8) of the exhaust muffler and is fastened to the jacket (3). Manufacture can be simplified if the pipe (5, 6) extending through the jacket (3) has a cone (10) at its inner end, if the exhaust muffler insert (4) has a countercone (11) and if the cone (10) meshes with the countercone (11).

IPC Classes  ?

• F01N 1/08 - Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling

Abstract

An exhaust gas treatment device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a multipart housing (2), which contains an oxidation-type catalytic converter unit (5) and, downstream therefrom, a particle filter unit (6) one after another in an axial direction extending in parallel to a longitudinal direction (3) of the housing. The housing (2) contains an inlet housing part (7), which has an exhaust gas inlet (8) and the oxidation-type catalytic converter unit (5), and an outlet housing part (9), which has an exhaust gas outlet (10) and into which the particle filter unit (6) axially protrudes. The maintenance of the exhaust gas treatment device is simplified if at least two housing parts (7, 9, 12) axially adjoining each other are detachably connected to one another by means of a clamp connection (11) and if at least one bracket (13) is provided, which is axially rigid in relation to the particle filter unit (6) and which cooperates with at least one such clamp connection (11), such that the bracket (13) is axially fixed at least one housing part (7, 9, 12) by means of the respective clamp connection (11).

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours

Abstract

A mixing and/or evaporating device (7) is provided through which exhaust gas can flow axially. The mixing and/or evaporating device (7) is arranged in an exhaust gas-carrying line of an exhaust system of an internal combustion engine, especially of a motor vehicle, with a plurality of blades (8), which are arranged distributed in the circumferential direction and which project inwardly from an outer wall (9). Each blade (8) has a profile (10) at least in an area adjoining the outer wall (9) in the axial direction (14), in which profile a discharge edge (12) has an offset (16) in the circumferential direction (15) in relation to the leading edge (11). A reduction of the flow resistance of the device (7) can be achieved if the profile (10) has an angle of incidence (17) each in relation to the axial direction (14) at the leading edge (11) and at the discharge edge (12), which angle is in a range of −10°, inclusive to +10°, inclusive.

IPC Classes  ?

• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust

Abstract

A fastening device (6) for detachably fastening a first component (4) to a second component (5), especially to a motor vehicle. A bearing block (7), which has a stay bolt (13), is fastened to one component (5). The bearing block (7) has an anchor bracket (8), which is fastened to the other component (4) and which has an anchor hook (15) for hooking onto the stay bolt (13). A locking device (16) is provided which can be adjusted between a locking state, in which anchor hook (15) can be hooked into and detached from the stay bolt (13), and an unlocking state, in which stay bolt (13) is fixed to the anchor hook (15) hooked into same.

IPC Classes  ?

• F16M 11/00 - Stands or trestles as supports for apparatus or articles placed thereon
• B60K 15/067 - Mounting of tanks
• B60R 11/00 - Arrangements for holding or mounting articles, not otherwise provided for

Abstract

An exhaust system (3) for an internal combustion engine (2), especially of a motor vehicle (1), is provided with at least one exhaust pipe (10), which carries an exhaust gas flow (11) away from the internal combustion engine (2) during the operation of the internal combustion engine (2). An active exhaust muffler (12) is provided with a housing (13) that is acoustically connected to the exhaust pipe (10) via a connection pipe (15). Damage to the exhaust muffler (12) is avoided by actively and/or passively cooling the connection pipe (15).

IPC Classes  ?

• B60K 13/04 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust

Abstract

An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, which is provided with an insert (3), which has a plurality of ducts (5, 5′), through which parallel flow is possible. The insert has, in an inflow-side, first section (6), an oxidation catalyst coating, which forms an oxidation catalytic converter (K1). The insert comprises on an outflow-side a second section (7) with a particle filter (K3) with inlet ducts (12) closed on the outflow side and with outflow ducts (13) closed on the inflow side after the first section (6). Greater integration of a plurality of catalyst components of the exhaust gas-treating device (1) is possible.

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours

Abstract

A housing (2) for an exhaust gas-treating device (1) of an exhaust system of an internal combustion engine includes a jacket (6) closed in the circumferential direction for mounting at least one exhaust gas-treating element (5. The jacket passes over at at least one axial end into a ring body (8, 9). The ring body (8, 9) is closed in the circumferential direction. The housing (2) can be connected to another component of the exhaust system. A simplified manufacture is achieved if the jacket (6) and the at least one ring body (8, 9) are manufactured from a single sheet steel billet (10) by rolling the sheet steel billet (10) in the circumferential direction and by connecting abutting edges (11) of the sheet steel billet (10). The jacket (6) and the at least one ring body (8, 9) differ from one another by different materials and/or different wall thicknesses (12, 13, 14).

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• B21D 51/16 - Making hollow objects characterised by the use of the objects

Abstract

An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided with a housing (2), which has a jacket (3) extending circumferentially on the side and at least one bottom (4). The homogenization of the exhaust gas flow is improved with a mixing housing (14), which is arranged in the interior space (23) of the housing (2) and which has a mixing chamber (15). An inlet (16) of the mixing housing passes through the bottom (4) and communicates with the mixing chamber (15). An outlet (17) of the mixing housing passes through the bottom (4) and communicates with the mixing chamber (15).

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust

Abstract

An exhaust gas-treating device (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, has a housing (2), which has a jacket (3) extending circumferentially on the side and two end-side end bottoms (4, 5). Maintenance is simplified with at least one mounting tube (6), which passes through one or the first end bottom (4) and into the outlet end (8) of which a particle filter (7) is plugged axially from the outside, with a deflecting housing (9). The deflecting housing (9) contains a deflecting chamber (10), and has at least one inlet (11) communicating with the deflecting chamber (10) and at least one outlet (12) communicating with the deflecting chamber (10). A fastening device (13) is provided for detachably fastening the respective inlet (11) at the respective outlet end (8) of the mounting tube (6).

IPC Classes  ?

• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust

Abstract

An exhaust gas cleaning device (2) for an exhaust system (1) of an internal combustion engine with an exhaust gas cleaning element (7), which is arranged in a first tubular body (3), and with a second tubular body (4), to which the first tubular body (3) is detachably connected via a clamp connection (5). The clamp connection (5) includes a radially outwardly projecting first ring collar (8), formed at the first tubular body (3) and extending circumferentially in a closed form and a radially outwardly projecting second ring collar (9), formed at the second tubular body (4) and extending circumferentially in a closed form. A sealing ring (10) extends circumferentially in a closed form and is axially in contact with the first ring collar (8) and the second ring collar (9). A first ring body (11) is arranged on the outside at the first tubular body (3) and is axially in contact with the first ring collar on the side facing away from the sealing ring (10). A second ring body (12) is arranged on the outside at the second tubular body (4) and is axially in contact with the second ring collar (9) on the side facing away from the sealing ring (10). A clamp (13) extends over both the first ring body and said second ring body (11, 12) and tightens these axially towards one another.

IPC Classes  ?

• B01D 50/00 - Combinations of methods or devices for separating particles from gases or vapours
• F16L 17/00 - Joints with packing adapted to sealing by fluid pressure

Abstract

A flanged joint (1) of an exhaust system of an internal combustion engine, especially of a motor vehicle, is provided for fastening a tubular body (4) of the exhaust system to another component (5). The flanged joint includes a tube bell (2) formed at the end area of the tubular body (4) as well as a ring-shaped flange (3), which surrounds the tubular body (4) on a side of the tube bell (2) facing away from the other component (5) and which has a plurality of fastening sites (6, 7) for connection to the other component (5).

IPC Classes  ?

• B60K 13/04 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust

Abstract

An X-tube (1) is provided, for an at least partly double-flow exhaust system (2) of an internal combustion engine, especially of a motor vehicle, with a housing (3), which comprises two half shells (4, 5) and which has two inlet openings (7, 8) on an inlet side (6) and two outlet openings (10, 11) on an outlet side (9). The housing provides an interior space (12), which is enclosed by the housing (3) and to which the openings (7, 8, 10, 11) are connected in a communicating manner, with a bottom—partition (13), which is designed as a separate component in relation to the two half shells (4, 5) and which divides the interior space (12) into two ducts (14, 15), which are each connected to an inlet opening (7, 8) and to an outlet opening (10, 11) in a communicating manner. The bottom (13) is made permeable for airborne sound and connects the two ducts (14, 15) to one another in an airborne sound-transmitting manner.

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing

Abstract

A muffler (1) for an exhaust system of an internal combustion engine, especially of a motor vehicle, with a housing (2), which has a jacket (3) and an end bottom each at two mutually spaced longitudinal ends of the jacket (3). At least one jacket opening (7) is provided, which passes through the jacket (3) and through which an inner tube (8) arranged in the interior of housing (2) can be connected to a tube of the exhaust system. The manufacture of the muffler (1) can be simplified if the jacket (3) is segmented in the circumferential direction (5) and has a jacket segment (11), which is manufactured as a separate component in relation to the remaining jacket (12). The separate component jacket segment (11) is rigidly connected to the remaining jacket (12) and has the at least one jacket opening (7).

IPC Classes  ?

• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• B21D 51/16 - Making hollow objects characterised by the use of the objects
• F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features
• B21D 51/00 - Making hollow objects

Abstract

An exhaust muffler (1) is provided for an at least partly dual-flow exhaust system of an internal combustion engine, especially of a motor vehicle. The exhaust muffler has a housing (2), which encloses an interior space (3), with two exhaust pipes (6), through which exhaust gas can flow in parallel, and which are each led through the interior space (3), and which have a side opening (8) each within the housing (2). A neck body (9) connects the two side openings (8) of the exhaust pipes (6) in a communicating manner to form a Helmholtz resonator with the interior space (3) of the housing (2), which interior space (3) acts as a resonance volume (12). An embodiment, which has an especially compact design and can be manufactured at a low cost, is obtained when the neck body (9) has two plate-shaped longitudinal walls (11), which are in contact each with the two exhaust pipes (6) and which define a neck volume (10), into which the side openings (8) of the exhaust pipes (6) open, and which is open towards the resonance volume (12).

IPC Classes  ?

• F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance

Abstract

A holding device fastening a part (1) to a frame (3). The holding device has an upper bracket (5) fastened to the frame (3), a lower bracket (6) fastened to the frame (3) below the upper bracket (5), and a holder (7) fastened to the part (1). The holder (7) has a hook (13) and a fixing plate (14). The upper bracket (5) has a hook mount (15) shaped complementary to the hook (13). The hook (13) is hung in the hook mount (15). The lower bracket (6) has a plate mount (16), shaped complementary to the fixing plate (14). The fixing plate (14) is inserted into plate mount (16) the from the top. A positive-locking connection is formed between the plate mount (16) and the fixing plate (14), which secures the fixing plate (14) at right angles to an insertion direction.

IPC Classes  ?

• A47B 96/06 - Brackets or similar supporting means for cabinets, racks or shelves
• E04G 3/00 - Scaffolds essentially supported by building constructions, e.g. adjustable in height
• F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts
• G09F 7/18 - Means for attaching signs, plates, panels, or boards to a supporting structure

Abstract

A flow guide (8) is provided for an exhaust system (3) of an internal combustion engine (1), especially in a motor vehicle. The flow guide (8) has at least one U-shaped guide plate body (13), which can be mounted with its U-base (14) on a pipe section (4′) of the exhaust system (3) and whose U-legs (15) form in the mounted state a flow guide plate (15) each. The flow guide plate cooperates with an exhaust gas stream (19) being guided in the pipe section (4′) during the operation of the exhaust system (3).

IPC Classes  ?

• F01N 13/08 - Other arrangements or adaptations of exhaust conduits
• F01N 3/26 - Construction of thermal reactors

Abstract

b) project axially on the other side of the centering ring (6) and axially overlap the ring collar (9) of the other tube end (3) in the radial outward direction. A clamp (7) axially and radially overlaps the ring collar (8, 9) and the centering ring (6) in the radial outward direction.

IPC Classes  ?

• F16L 17/00 - Joints with packing adapted to sealing by fluid pressure

Abstract

A mixing and/or evaporating device (7) is provided for an exhaust system (3) of an internal combustion engine (1), especially in a motor vehicle. The mixing and/or evaporating device (7) has a tubular body (8), at one axial end of which a plurality of blades (9) are arranged, which blades are located adjacent to each other in the circumferential direction, project radially inwardly and have angles of incidence in relation to one another in the axial direction. For manufacture at a low cost, the tubular body (8) is manufactured together with the blades (9) from a single sheet metal body (11) by shaping.

IPC Classes  ?

• F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust

Abstract

A process is provided for manufacturing an exhaust gas treatment device (1), which contains at least one exhaust gas treatment insert (2) in a tubular housing (4), especially for an exhaust system of an internal combustion engine. A circumferential geometry of the at least one insert (2) is measured in at least one axial section of the particular insert (2). The at least one insert (2) is inserted axially into the housing (4). The measured circumferential geometry of the at least one insert (2) is taken into account during the deformation of the housing (4).

IPC Classes  ?

• B21D 51/16 - Making hollow objects characterised by the use of the objects
• F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust

Abstract

An exhaust system (1) is provided for an internal combustion engine (4), especially in a motor vehicle, with two separate exhaust gas lines (2, 3) with a first sound transmission feature (7), which couples the two exhaust gas lines (2, 3) with one another, and with a control (9) for activating and deactivating the first sound transmission connection (7) as a function of at least one operating parameter of the internal combustion engine (4). To improve the muffling behavior, a second sound transmission connection (8) is provided, which couples the two exhaust gas lines (2, 3) with one another downstream of the first sound transmission connection (7), and makes possible, depending on the particular operating parameter, three switching states (SZ), namely, a first switching state, in which both sound transmission connections (7, 8) are deactivated, a second switching state, in which only one sound transmission connection (7, 8) is activated, and a third switching state, in which both sound transmission connections (7, 8) are activated.

IPC Classes  ?

• F01N 1/06 - Silencing apparatus characterised by method of silencing by using interference effect
• F02B 27/02 - Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
• F01N 1/00 - Silencing apparatus characterised by method of silencing
• F01N 1/02 - Silencing apparatus characterised by method of silencing by using resonance

Abstract

The invention relates to a silencer (1) which is for an exhaust gas
installation (2) of a
combustion engine, particularly of a motor vehicle, and which comprises a
silencer
housing (3) that encloses a housing inner chamber (5), and at least one hollow
body (4) in
a half shell construction that is arranged in said housing inner chamber (5)
and that
conducts exhaust gas, the two half shells (14, 15) of the hollow body (4)
being fixed to
each other in the region of a separating plane (16). The assembly of the
silencer (1) and
hollow body (4) can be simplified if the two half shells (14, 15) are fixed to
one another
using fixing elements (17, 18) that are designed directly on the half shells
(14, 15).

IPC Classes  ?

• F01N 1/00 - Silencing apparatus characterised by method of silencing
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly