Abstract: A muffler for an exhaust system of an internal combustion engine includes a muffler housing having a peripheral wall elongated along a longitudinal housing axis. The muffler has an end wall on each axial end region of the peripheral wall and a muffler insert, surrounded by the peripheral wall and supported on the peripheral wall. A retaining wall extends substantially in the direction of the longitudinal housing axis and a first exhaust-gas routing pipe is positioned with a first end region engaging in an opening in the peripheral wall and is secured to the peripheral wall and retained with a second end region on the retaining wall. The first exhaust-gas routing pipe is retained in its second end region on the retaining wall by force closure or interlocking.

Abstract: A joined body includes a tubular first member, and a second member including a plate-shaped wall portion in which a through-hole is formed, the first member being inserted into the through-hole. The collar member is interposed between the first member and the second member in at least a part of the hole peripheral wall of the through-hole. The first member and the second member are joined by expanding the first member at a portion corresponding to the through-hole.

Abstract: A muffler for a vehicle includes: a case sealed at both ends by first and second side panels; first and second baffle plates installed in the case; a first chamber formed between the first side panel and the first baffle plate; a second chamber formed between the first baffle plate and the second baffle plate; a third chamber formed between the second baffle plate and the second side panel; an intake tube passing through the first side panel, and the first and second baffle plates, and including a first hole formed in a first body section located in the first chamber, and a second hole formed in a second body section located in the second chamber; and a pair of exhaust tubes passing through the first and second baffle plates, and the second side panel, and including a vent hole formed in body section located in the second chamber.

Abstract: A vehicle exhaust system includes a tubular component having an inner surface and an outer surface such that the inner surface defines a primary exhaust gas flow path. The tubular component extends along a central axis from an inlet end to an outlet end. The tubular component includes at least one ridge extending at least partly along a circumference of the tubular component. The at least one ridge includes a first portion angularly extending inwardly from the tubular component, and a second portion disposed downstream of the first portion. The second portion angularly extends inwardly from the tubular component. In some cases, the second portion defines a plurality of openings extending therethrough and spaced apart from each other. In some cases, the tubular component defines a plurality of tube openings disposed downstream of the at least one ridge.

Abstract: An exhaust assembly for a vehicle. The exhaust assembly includes a header assembly including one or more head pipes, and a bridge with a first end and a second end that is opposite the first end. The first and second ends are secured to the header assembly. The exhaust assembly further includes a shield assembly including a shield shaped to cover a portion of the header assembly and a retainer secured to the shield and supported by the bridge by a planar clamp joint therebetween.

Abstract: An exhaust component assembly includes a heat shield formed from a composite material and a mounting structure that attaches the heat shield to an outer housing of an exhaust component. The mounting structure comprises an insulator located between an outer surface of the outer housing an inner surface of the heat shield. A method of assembling the composite heat shield to the outer housing of the exhaust component assembly is also disclosed.

Abstract: An exhaust component assembly includes a heat shield and a mounting structure to attach the heat shield to an outer housing of an exhaust component. The mounting structure comprises a primary insulator located between an outer surface of the outer housing and an inner surface of the heat shield and at least one secondary insulator positioned adjacent to the primary insulator. A method of assembling the heat shield to the outer housing of the exhaust component assembly is also disclosed.

Abstract: An exhaust gas outlet system for a motor vehicle has an end pipe and a cover. The end pipe cover has an end pipe cover inner and outer wall constructed with at least two walls. The end pipe cover inner wall is constructed in at least two parts, can be closed radially around the end pipe and can be at least partially arranged in a positive-locking manner on the end pipe so that the end pipe cover inner wall in the state thereof mounted on the end pipe is not axially displaceable. A first annular securing element keeps the end pipe cover inner wall radially fixed on the end pipe. The end pipe cover outer wall can be pushed axially over the end pipe cover inner wall. The end pipe cover outer wall is fixed by means of a locking connection axially to the end pipe cover inner wall.

Abstract: A muffler (1) for an exhaust system of a vehicle driven by an internal combustion engine, includes a gas-tight housing (2), a partition wall (31) inside the housing, an inlet pipe (51), a first outlet pipe (61), a switchable second outlet pipe (7) and a resonator pipe (8). The a partition wall (31) divides the housing's interior into a first volume (41) and a second separate volume (42). The inlet pipe and the first outlet pipe (61) and the second outlet pipe and the resonator pipe are in fluid communication with the first volume. The resonator pipe provides fluid communication between the first volume and the second volume. The second outlet pipe passes through the second volume. The second outlet pipe is surrounded, in a circumferential direction, by the resonator pipe in a section in which the second outlet pipe penetrates the partition wall.

Abstract: A mounting system for an exhaust system component may include one or more end mounting brackets and one or more intermediary mounting brackets. Each of the one or more end mounting brackets and the one or more intermediary mounting brackets may each include a vertical member, a horizontal member, one or more attachment openings, and an attachment strap configured to secure a component of an exhaust system to the respective end mounting bracket or intermediary mounting bracket. The one or more end mounting brackets and the one or more intermediary mounting brackets may be configured to be selectively attached and detached from a mounting surface via one or more surface attachment members and the one or more attachment openings.

Abstract: A muffler having a shell of a double-layer structure includes an inner shell that is formed by fixing ends of a tubularly rolled plate material to each other through a lock seam, and an outer shell that is formed substantially in the same manner as the inner shell. In this muffler, a through-hole is provided through the inner shell at a position where the inner shell overlaps with a lock seam portion of the outer shell.

Abstract: An exhaust system of a saddle-ride type vehicle includes an end cap and a muffler close to each other to achieve uniformity therebetween and which is capable of preventing the occurrence of a knocking sound. The exhaust system of a saddle-ride type vehicle includes a muffler connected to an exhaust pipe for discharging exhaust of an engine E and an end cap is attached to a muffler rear end portion. In the end cap, an insertion portion thereof is inserted into and held by an end cap inserted portion provided in the muffler rear end portion, and multiple protruding portions are formed on an outer surface of the insertion portion at a predetermined interval in a circumferential direction of the outer surface. The multiple protruding portions come in contact with an inserted portion inner peripheral wall surface of the end cap inserted portion.

Abstract: An engine exhaust aftertreatment component includes a housing defining an exhaust flow path from an exhaust inlet to an exhaust outlet. The housing supports an internal support channel. An aftertreatment brick module includes a catalytic brick, a can configured to receive the catalytic brick, and an end plate disposed along an end of the can. The end plate includes a coupling mechanism configured to be received within the internal support channel.

Abstract: A muffler for a vehicle is provided, including: a muffler housing having a first housing body and a second housing body that are divided in two parts and form an internal space with an inlet opening and an outlet opening when combined; and an internal structure inserted and forced into the internal space of the muffler housing to be detachable from the muffler housing, and allowing an exhaust gas discharged from an engine to flow into the internal space and to be discharged out of the muffler housing through a predetermined path.

Abstract: The invention relates to a component (1) for motor vehicles, in particular in exhaust systems or in independent heaters, comprising a carrier (2), wherein the carrier (2) has a predefined structural stiffness and a plate (3) for increasing the predefined structural stiffness of at least a part of the carrier (2), wherein the plate (3) is fixed to the carrier (2) via at least one connection (4), wherein the plate (3) comprises at least one honeycomb structure (W). The invention likewise relates to a method for producing a component (1) as well as a use.

Abstract: A muffler mounting structure of a vehicle, particularly a straddle-type four-wheeled vehicle. The muffler mounting structure is provided with a muffler, at least one muffler mounting portion provided in a body frame and having a mounting hole, and at least one mounted bracket provided in an upper part of the muffler and disposed on an upper surface of the muffler mounting portion. The mounted bracket having a fixing member insertion hole passing in the up and down direction, and at least one fixing member inserted into the fixing member insertion hole from the upper side and fixed to the mounting hole.

Abstract: A silencer capable of preventing a damage of a metallic layer formed on an inner surface of an external cylinder formed from CFRP, and the external cylinder for the silencer. The silencer 1 includes the external cylinder 2, an internal cylinder 3 and an acoustic absorbent (not shown). A posterior end 2r of the external cylinder 2 is detachably provided with a tail cap 4. An anterior end 2f of the external cylinder 2 is detachably provided with a coupling body 5. An inner circumferential surface of the posterior end 2r of the external cylinder 2 includes a posterior covering portion 30 while an inner circumferential surface of the anterior end 2f thereof includes an anterior covering portion 32. This posterior covering portion 30 covers a posterior end portion 8r of a metallic layer 8 while the anterior covering portion 32 covers an anterior end portion 8f thereof.

Abstract: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of the housing through the inlet and outlet, respectively. A silencer cartridge unit is removably disposed within the interior cavity of the housing and defines a gas flow path fluidically connected to the inlet and outlet of the housing. The silencer cartridge unit has at least one sound-attenuating element that surrounds the gas flow path. The housing is further equipped with a closure that sealingly closes a portion of the housing, and is releasable from the housing to provide an access opening through which the silencer cartridge unit can be removed. The apparatus can also be adapted to include a filtration medium.

Abstract: An exhaust system for an electric power generation system is disclosed. The exhaust system may include a muffler configured to suppress noise associated with operation of an engine associated with the electric power generation system. The muffler may be configured to be mounted in a roof of a housing configured to contain at least part of the electric power generation system. The muffler may be configured to form an outside surface of the roof. Removal of the engine from the housing may be facilitated by removal of the muffler from the roof, such that the engine can be lifted out of the housing.

Abstract: A selectively removable exhaust baffle which can be placed within an exhaust pipe to muffle the emitted sound. The removable baffle preferably includes a frame having a pair of legs joined by a spring portion. One or more transverse occluding plates are mounted on the frame. The frame is sized so that when it is pushed into the exhaust pipe it must be compressed. This compression holds the frame in place. The transverse occluding plate or plates lie against the interior wall of the exhaust pipe. The gas flow must therefore pass around the plate or plates, thereby attenuating the sound.

Abstract: An exhaust-noise attenuation muffler includes two half-shells, each including an inner shell and an outer shell which are made through deep drawing of a sheet metal blank which can have a thickness between 0.3 mm and 0.5 m. The inner shell or the outer shell is provided with an embossment. After placing the inner shells in corresponding ones of the outer shells to form half-shells, two complementing half-shells are joined together.

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).

Abstract: A customizable integrated modular exhaust system is provided having a hollow shell muffler body formed from two symmetrical stamp formed shell members that sealably attach to a tailpipe that transverses the hollow shell, and extends through each end of the hollow shell. Exhaust gases are delivered to the muffler body from an engine, by at least one inlet tube communicably attached to the muffler body and connected to the engine via a flange. The muffler body may have various internal configurations, including a disc baffle or catalytic converter configuration.

Abstract: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of the housing through the inlet and outlet, respectively. A silencer cartridge unit is removably disposed within the interior cavity of the housing and defines a gas flow path fluidically connected to the inlet and outlet of the housing. The silencer cartridge unit has at least one sound-attenuating element that surrounds the gas flow path. The housing is further equipped with a closure that sealingly closes a portion of the housing, and is releasable from the housing to provide an access opening through which the silencer cartridge unit can be removed. The apparatus can also be adapted to include a filtration medium.

Abstract: A muffler structure in which a subassembly formed by fixing an inner cylinder and a separator is not welded to the outer cylinder in welding an overlapping portion of a sheet metal wrapped around the subassembly. A subassembly is formed by fixing an inner cylinder and a separator. An outer cylinder is formed by first wrapping a sheet metal around the subassembly and next welding an overlapping portion of the sheet metal. The subassembly is formed with a recess opposed to a welded portion of the outer cylinder.

Abstract: A muffler of a vehicle includes a first muffler body so as to form a first chamber, at least a second muffler body including a housing, one end portion opened and the other end portion closed, wherein one of the second muffler bodies is fitted into the other end portion of the first member to form a second chamber and the other second muffler bodies are fitted into each other through the one end portions in series to form third chambers if more than one second muffler bodies are assembled, an inflow pipe to connect the outside with the first, second and/or third chamber by passing the one end portion of the first muffler body, and an outflow pipe to communicate the first, second, and/or third chamber with the outside by passing through the other end portion of the last second muffler body.

Abstract: An exhaust system comprising: an exhaust chamber having a longitudinal axis and an outer wall defining alternating longitudinally-extending ribs and grooves; and an insert within the exhaust chamber, the insert including a plurality of fins extending generally perpendicular to the longitudinal axis, each fin including a distal edge extending substantially close to the plurality of ribs, the insert defining expansion chambers between adjacent fins. Pressurized gas flowing through the exhaust chamber flows along the grooves and expands within the expansion chambers to reduce the pressure of the pressurized gas prior to the gas exiting the exhaust chamber. The fins may in some embodiments be sufficiently stiff to resist substantial deflection under the influence of the gas.

Abstract: An apparatus which provides for, noise suppressor tube with an internal tapered profile and baffle core which has an external tapered profile machined and designed to minimize friction between the two opposing surfaces which will better facilitate the disassembly of the noise suppressor unit after use.

Abstract: A silencer apparatus for attenuating noise in gas flow systems. The apparatus generally includes a housing having an interior cavity and a gas flow inlet and outlet that are adapted to be connected to a passage such that a gas flowing through the passage enters and exits the cavity of the housing through the inlet and outlet, respectively. A silencer cartridge unit is removably disposed within the interior cavity of the housing and defines a gas flow path fluidically connected to the inlet and outlet of the housing. The silencer cartridge unit has at least one sound-attenuating element that surrounds the gas flow path. The housing is further equipped with a closure that sealingly closes a portion of the housing, and is releasable from the housing to provide an access opening through which the silencer cartridge unit can be removed. The apparatus can also be adapted to include a filtration medium.

Abstract: An exhaust device includes an exhaust pipe connected at its upstream end to a cylinder head of the engine and an exhaust muffler connected to the downstream end of the exhaust pipe for suppressing the generation of noise from a heat insulating cover that covers a part of the exhaust pipe. A heat insulating cover covers a portion of the exhaust pipe near the engine and a stay is fixed to the heat insulating cover. The stay includes a supporting plate portion curved so as to partially surround the outer circumference of the exhaust pipe. A first vibration isolating member is provided that is sandwiched between the outer circumference of the exhaust pipe and the supporting plate portion, a band member is tightened to mount the supporting plate portion to the exhaust pipe, and a second vibration isolating member is sandwiched between the supporting plate portion and the band member.

Abstract: Methods and apparatus are provided for an exhaust duct having an externally replaceable acoustic liner. The exhaust duct includes a forward section that is configured to be axially coupled with a bulkhead collar on the aircraft, a body section that is coupled to the forward section and a stinger cap that includes the replaceable acoustic liner. The replaceable acoustic liner is configured to be slideably received by the body section.

Abstract: An exhaust apparatus has an exhaust pipe that receives exhaust gas from an engine and a muffler attached to the exhaust pipe. The muffler has an exhaust portion that discharges exhaust gas received by the exhaust pipe. A tubular member is attached to the exhaust portion and has an exhaust inlet portion for passage therethrough of the exhaust gas discharged through the exhaust portion and an opening portion formed oppositely from the exhaust inlet portion. A filter formed from metal fibers is disposed in the tubular member to reduce an exhaust noise created by the exhaust gas. A cap member is attached to the opening portion of the tubular member and has an exhaust outlet portion that discharges the exhaust gas from the muffler.

Abstract: Within the framework of the purification of exhaust gases of mobile internal combustion engines, filter materials are subjected to particularly high thermal and dynamic conditions. As a result, it is advantageous to use filter materials together in a stable and durable composite. To this end, a heat-resistant filter layer made of a material through which a fluid can at least partially flow and which has at least one filter section and at least one edge area, is provided. A layer thickness that differs from that of the at least one filter section is provided in the at least one edge area.

Abstract: A clamping member (2) for clamping a periphery of a rear-end open portion of an exhaust pipe (3) is accommodated in a front-end open portion (11) of a tail pipe (1). The clamping member (2) has a pair of plate parts (21, 22) disposed at right and left positions of the front-end open portion (11) and a bolt (4) for connecting the plate parts (21, 22) to each other by reducing an interval between the opposed plate parts enough to sandwich a periphery of the rear-end open portion (31) between the plate parts. A concave surface (21a, 22a) whose configuration conforms to that of a periphery of the rear-end open portion (31) inserted between the plate parts (21, 22) is formed on each of the plate parts (21, 22).

Abstract: A serviceable muffler (20) has an end plate (34) releasably clamped (36) to an open end (30) of a muffler body (26) and permitting access to an internal catalytic or filter element (28) for removal and replacement. An apertured flange (44) has an outer border with flared rounded portion (46) complemental to flared rounded portions (40 and 42) of each of the end plate (34) and the open end (30) of the body (26), and having an inner border defined by an aperture (48) through which the element (28) is removed and replaced. Servicing and manufacturing methods are provided.

Abstract: In order to form a noise suppressor in a hose of e.g. a motor vehicle, modular portions are connected in series to define suppression chambers with particular noise suppression characteristics. Those characteristics are due to the volume of each chamber, to the size of the apertures from the chambers to the central duct of the suppressor, and optionally due to spacers which are inserted into at least one aperture of the chambers to alter the effective open area of that aperture. Such spacers may also be used in which the noise suppressor is not modular. Where modular portions are used, it is preferable that each chamber is bounded by parts of two modular portions. A wall of one modular portion may then close the chamber in another modular portion, making the manufacture of the modular portions easier. Also disclosed is the use of a mass acting as a damper, which may be a noise suppressor as previously discussed, within a hose. The mass is connected to the hose by resilient means, e.g. electrometric material.

Abstract: An exhaust apparatus for a vehicle includes a spark arrester having a tubular spark arrester body assembled on a rear portion of a muffler connected to an exhaust pipe. A tail pipe is inserted in the spark arrester body and is mounted on the spark arrester such that exhaust gas flowing through the muffler is discharged into the atmospheric air from the tail pipe through the spark arrester, to carry out, expansion and contraction of exhaust gas in the spark arrester occurs to augment the sound reduction performance. An annular partition plate cooperates with an inner face of a spark arrester body to form a throttle path therebetween that is securely mounted on a tail pipe wherein a plurality of expansion chambers that communicate with each other through the throttle path are formed between the tail pipe and the spark arrester body with the annular partition plate disposed therebetween.

Abstract: A mountable discharge pipe for an end muffler has devices for fastening the discharge pipe to an end muffler housing. A hook provided on the discharge pipe can be suspended at the end muffler housing, and a holding lug provided with an opening is arranged at the discharge pipe. The holding lug can be fastened by way of a nut-bolt connection on the end muffler housing. As a result, an easily mountable fastening of a discharge pipe on an end muffler is achieved.

Abstract: A new and improved exhaust system as described herein, wherein the catalytic cartridge is selectively replaceable. The catalytic cartridge, which contains the catalyst, is located within the baffle tube. The baffle tube is easily inserted and removed from the housing assembly of the exhaust system, thereby making it simple and efficient to remove and replace the catalytic cartridge.

Abstract: A muffler includes a housing having a side wall defining a chamber. The housing includes a first section and a removable second section. A selectively removable insert is received in the chamber of the housing. A coupling is provided for selectively attaching the housing first section to the housing second section.

Abstract: An insert assembly for a muffler of a high-performance motor cycle, having an insert with a filling of compressed heat-resistant, sound-absorbing material mounted on a removable hollow tube having an inside diameter greater than the outside diameter of the perforated core of the muffler. The filling includes a bulked-up continuous filamentary material. Once the insert has been introduced into the muffler by sliding the tube along the core, the tube is then withdrawn leaving the insert behind in the muffler. Removal of the tube allows the filling to relax towards its intended density. The first subsequent exposure to hot exhaust gases causes certain portions of the insert to degrade, allowing further relaxation of the filling to assume its intended density. Further, the tube precludes potential damage to the insert during its introduction into the muffler.

Abstract: A housing for an exhaust component having a longitudinal axis, an outer shell, an inner shell positioned within the outer shell, an expanding joint for permitting relative longitudinal movement of the inner and outer shells in response to temperature differences between the inner and outer shells, and an expanding joint for permitting relative circumferential movement of the inner and outer shells in response to temperature differences between the inner and outer shells.

Abstract: A silencer (10) includes a polymeric casing (12) spaced from at least one inlet pipe and at least one outlet pipe by polymeric spacers (52). The polymeric spacers are made from a different material to that of the polymeric casing. The polymeric spacers are heat-resistant and have a higher melting point than the polymeric casing. The polymeric spacers are made of a softer material than the polymeric casing, and the polymeric spacers are capable of being deformed to accommodate irregularities in the shape of the inlet and outlet pipes.

Abstract: A modular muffler that is quickly and easily adapted for use with a wide variety engines is disclosed. The muffler has a dimensionally standardized body member with end portions that may receive any of a number of adaptor end plates provided with various inlet and outlet configurations. The adaptor end plates are inwardly and outwardly adjustable relative to the body member end portions in order to vary the body member internal volume.

Abstract: A replaceable muffler structure with an adjustable length includes a muffler, a tail pipe having a rear end provided with an insertion section movably mounted in a rear end of the muffler, and a positioning ring mounted on the rear end of the muffler for locking the insertion section of the rear end of the tail pipe. The rear end of the muffler has an air outlet provided with an annular flange for receiving the insertion section of the rear end of the tail pipe. The positioning ring is provided with a fitting portion fitted on the annular flange of the muffler and defines a plurality of screw holes. A plurality of bolts are each screwed into a corresponding one of the screw holes, and each urged on an outer periphery of the insertion section of the rear end of the tail pipe. A plurality of nuts are each screwed on a corresponding one of the bolts.

Abstract: Heat shielding panels are attached to exhaust pipes and a silencer by using small set springs and large set springs. Distortion on a heat shielded panel, which would be caused when attaching a heat shielding panel through welding, is not caused. A process for positioning a bracket, which would be required when welding a bracket to an exhaust pipe, can be omitted. Moreover, as no bolt and nut is used, the number of parts can be reduced. As a result, productivity can be improved and an increase in the cost can be suppressed.

Abstract: A muffler and method of making a muffler is disclosed wherein the muffler is formed from a single sheet showing four portions separated by three folds lines and wherein the two center portions are formed with tube outlines such that when the center portions are folded 180°, the tube outlines on the center portions abut to provide an exhaust path and wherein the two outer portions are folded over one of the center portions respectively to define two chambers surrounding the tubes and wherein end caps are provided to enclose the chambers.

Abstract: A lock seam for joining a first edge of material to a second edge of material is described. The first edge is wrapped in a first curl such that the first curl is substantially circular in shape. The second edge is wrapped in a second curl which is also substantially circular in shape. The inside surface of the first curl is wrapped about the outer surface of the second curl. The lock seam formed by this manner is particularly advantageous for muffler assembly.

Abstract: An end (29) of a tube (25) is closed off by a disk (31) which is locked in position in a joint formed with a collar (27) and a plate surround (28). The collar (27) includes a flange (26) which is secured against the lower face of the plate surround (28). The flange (26) may include ribs which act as torsion resistance ribs enhancing the engagement with the plate surround (28). In another embodiment, the collar (27) forms a tube end joint but not a closure.

Abstract: Silencer for gas discharge device employing easily replaceable cartridge utilizing juxtapositioned layers of wire mesh and porous resilient material which dissipate the energy stored in an exhaust system and deflect under pressure of the exhaust gases to provide a self cleaning function and a cylindrical liner mounted within the cartridge comprising the same or larger wire mesh and wire diameter size than used in the cartridge for capturing the large particles of the exhaust gases before they pass through the layers of wire mesh forming the cartridge.