Class / Patent application number | Description | Number of patent applications / Date published |
181227000 | Pipe-muffler (e.g., tail pipe type) | 31 |
20080245604 | PASSIVE SECONDARY AIR MUFFLER - A passive secondary air muffler for a small internal combustion engine. The secondary air muffler may include a venturi device and a catalytic converter. The venturi device may be in the form of a stamped sheet metal insert which, along with the outer muffler housing or shell, forms a secondary or auxiliary air intake device. The venturi device may also be formed from baffles separating an inlet chamber from an outlet chamber of the muffler. The secondary air intake device provides auxiliary or secondary air to the exhaust gas stream exiting the engine upstream of the catalytic converter to improve the efficiency of the catalytic converter. In an exemplary embodiment, the venturi device has a hemispherical cross-sectional shape or a circular cross-sectional shape taken along a plane substantially perpendicular to the direction of flow of the exhaust gas stream. | 10-09-2008 |
20090026009 | EXHAUST MEMBER - An exhaust member having two or more exhaust ports separated by a partition wall extending between an inner wall of a tubular portion, wherein said partition wall has the minimum thickness A in a range within ½ of the length of said partition wall from its longitudinal middle point as a center, when viewed in an arbitrary transverse cross section of said tubular portion (including an opening end surface) having said partition wall; wherein said partition wall becomes gradually wider outside said range; and wherein each cuter surface of said partition wall exists in a region sandwiched by (a) an inner line comprising a parallel line H | 01-29-2009 |
20090032332 | HOUSINGS FOR FLUE GAS UNITS - A housing for a flue gas unit is provided that includes a closed jacket and two end walls as well as an insert with inlet pipe an outlet pipe and retaining walls, wherein one of the pipes exits from the housing jacket radially. The housing jacket is cut out around the one pipe, the cutout is closed by a concave closing panel adapted to the shape of the cutout, and the closing panel has an opening for the radial pipe end. | 02-05-2009 |
20090057055 | MUFFLER STRUCTURE - 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. | 03-05-2009 |
20090101434 | INTEGRATED MODULAR EXHAUST SYSTEM - 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. | 04-23-2009 |
20090107759 | Swing-arm integrated exhaust silencer - A Swing-arm Integrated Exhaust Silencer is disclosed. The Silencer is designed to be incorporated within the conventional swingarm of a motorcycle. One version has a removable silencer cartridge that installs within the inner chamber of the motorcycle's swingarm. Another version allows the exhaust stream to be diverted from the conventional silencer and into the inner chamber of the swingarm. In either version, the swingarm has plurality of apertures formed in it to allow for exhaust gas exit. The invention includes an adapter device that splits the exhaust gas exiting the engine and redirects it into the swingarm-integrated silencer. The exhaust adapter device is somewhat flexible to allow for movement between the swingarm, the engine, and the conventional silencer's exhaust pipe. | 04-30-2009 |
20090272600 | MAT MEMBER, METHOD FOR MANUFACTURING THE MAT MEMBER, MUFFLER AND METHOD FOR MANUFACTURING THE MUFFLER - A mat member includes inorganic fibers, a first surface and a second surface opposite to the first surface. The first surface has a plurality of needle penetration marks and/or a plurality of needle protrusion marks. The second surface has a plurality of needle protrusion marks and/or a plurality of needle penetration marks. A plurality of needle marks are formed in the mat member by needle punching and extend from the needle penetration mark to the needle protrusion mark. An inorganic fiber bundle which includes a plurality of the inorganic fibers oriented in a closed loop configuration is formed at the needle protrusion mark. | 11-05-2009 |
20090288912 | Exhaust apparatus - In the vicinity of the floor of a vehicle and downstream of the muffler, a pair of cross members are provided to sandwich the first portion (i.e. the intermediate portion) of the exhaust pipe from the top and bottom. The minimum distance in the vertical direction of the cross members is smaller than the maximum height of the muffler. By doing this, when the muffler is displaced toward the rear of the vehicle, the muffler comes into contact with and is caught by the pair of cross members. The distance in the longitudinal direction of the vehicle between the part of the cross members which the muffler catches on and the part of the muffler which the cross members make contact with is set to be a smaller value than the minimum distance between the second portion of the exhaust pipe and the fuel tank. | 11-26-2009 |
20100012421 | Housing For A Component of An Exhaust System, and Such a Component - A housing for a component of an exhaust system has an opening which is provided in the housing, and a pipe which is arranged in the opening and connected with the housing. The pipe projects out of the housing and is connected with a connecting pipe shortly behind the opening. The invention further relates to such a component. | 01-21-2010 |
20100243371 | MUFFLER DEVICE FOR MOTORCYCLE - An exhaust outlet | 09-30-2010 |
20110083924 | MUFFLER FOR VEHICLE - A muffler for a vehicle is disposed in a channel for discharging exhaust gas from the engine. The muffler uniformly reduces all of a flow-induced noise, a high-frequency noise, and a low-frequency booming noise generated by the exhaust gas passing through the channel, and maximize effect of reducing the noises to keep the vehicle silent and comfortable. | 04-14-2011 |
20110192676 | EXHAUST MUFFLER - An exhaust muffler ( | 08-11-2011 |
20120138384 | EXHAUST APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An exhaust apparatus is provided with an exhaust gas pipe for discharging to the atmosphere an exhaust gas discharged from an internal combustion engine. The exhaust gas pipe has an upstream open end connected to the sound deadening device positioned at the upstream side of an exhaust gas discharging direction, and a downstream open end through which the exhaust gas is discharged to the atmosphere. At least one of the exhaust gas upstream side and the exhaust gas downstream side of the exhaust gas pipe has a diameter expansion structure expanded in diameter toward one of the upstream open end and the downstream open end. The exhaust apparatus comprises a plate provided in the diameter expansion structure to be held in opposing relationship with the discharge direction of the exhaust gas and having an open portion formed to pass through the plate in the discharge direction of the exhaust gas. | 06-07-2012 |
20120205191 | EXHAUST SYSTEM FOR MOTORCYCLE - A muffler of a motorcycle having an outside diameter greater than the outside diameter d | 08-16-2012 |
20120267190 | MUFFLER OF INTERNAL COMBUSTION ENGINE - A muffler of an internal combustion engine is characterized in that a muffler of an internal combustion engine having a muffler main body connected to a rear end of an exhaust pipe of the internal combustion engine, a tail pipe extended from a rear end surface of the muffler main body, and a tail cover covering an outer periphery of the tail pipe includes a partition wall compartmentalizing a space formed between the tail pipe and the tail cover into at least two or more spaces. | 10-25-2012 |
20120267191 | EXHAUST MUFFLER - An exhaust muffler of an internal combustion engine has pipe sections on the inflow side and on the outflow side, respectively, and a muffler housing that is in communication with the pipe sections. The muffler housing, which includes an outer casing and end walls, is made at least in sections of a plastic material. | 10-25-2012 |
20120292128 | PLASTIC MUFFLER WITH HELMHOLTZ CHAMBER - A muffler for a vehicle exhaust system includes a plastic outer shell that defines an internal cavity. A metal pipe extends through the internal cavity from an inlet to an outlet. A Helmholtz chamber is formed within the plastic outer shell to attenuate a desired frequency. | 11-22-2012 |
20130126266 | Q4 MUFFLER ASSEMBLY - A system for improved exhaust evacuation from an internal combustion engine made up of a core which is surrounded by an outer casing, an elongated tube, and a perforated chamber made up of two cup shaped portions. The first cup shaped portion is connected to an outlet tube and the second cup shaped portion is connected to the elongated tube. The second cup shaped portion has holes around the connection and the first cup shape portion does not. | 05-23-2013 |
20130277143 | TAILPIPE DIFFUSER - A diffuser for a vehicle exhaust system includes a body defined by a tubular portion comprising an outer peripheral wall extending about a central axis and at least one surface that extends at an angle relative to the central axis. A tailpipe connection interface is formed at one end of the tubular portion. In one example, the surface extends at an oblique angle relative to the central axis. In another example, a first plurality of holes is formed within the outer peripheral wall and a second plurality of holes is formed within the surface. | 10-24-2013 |
20140090924 | EXHAUST SYSTEM OF SADDLE-RIDE TYPE VEHICLE - 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. | 04-03-2014 |
20140158460 | TAIL PIPE FOR MUFFLER OF MOTOR VEHICLE - A tail pipe for a muffler is provided that can improve aesthetical appearance of a rear surface of a vehicle, while preventing noise that is generated by air currents. The tail pipe may be a hollow tail pipe which is disposed at a rear end of a rear exhaust pipe connected to a rear end of the muffler, and which functions as an outlet adapted to discharge exhaust gas. The tail pipe may include: at least one panel forming an interior surface and an exterior surface opposite to the interior surface; a space surrounded by the panel and formed between the interior surface and the exterior surface; a receiving hole formed at the interior surface; and a barrier mounted in the space and partially protruded through the receiving hole, where the barrier collects soot from the exhaust gas. | 06-12-2014 |
20140196977 | SILENCER AND METHOD FOR MANUFACTURING THE SAME - The invention relates to a silencer ( | 07-17-2014 |
20150136520 | STRUCTURE OF DUAL EXHAUST SYSTEM FOR CDA ENGINE - A structure of a dual exhaust system for a cylinder deactivation (CDA) engine, may include two inlet pipes, two outlet pipes, each of which protrudes and extends from an inside of a corresponding main muffler to an outside of the corresponding main muffler, wherein each of the two outlet pipes releases the exhaust gas passing through the corresponding main muffler to an outside of the vehicle therethrough, a connecting pipe disposed in a vehicle width direction and connecting between the two main mufflers, and a valve mounted on one outlet pipe of the two outlet pipes to open and close the one outlet pipe, wherein when the valve may be closed, the exhaust gas passing through one of the main mufflers may be introduced into the other main muffler of the two outlet pipes through the connecting pipe and then may be emitted to the outside of the vehicle. | 05-21-2015 |
20150322831 | SUB-MUFFLER AND MANUFACTURING METHOD OF SUB-MUFFLER - A manufacturing method of a sub-muffler -parenthesis- | 11-12-2015 |
20150330283 | Tailor to Fit Muffler - A muffler includes a shell, baffles, and a plurality of pipes. The shell defines first and second end cavities and a central cavity. The end cavities have larger cross-sectional areas that a cross-sectional area of the central cavity. The baffles cooperate to form multiple chambers within the shell. A first inlet directs a first portion of the exhaust into a first chamber. A second inlet directs a second portion of the exhaust into a second chamber. A first pipe extends through first, third and fourth baffles and includes an inlet in the fourth chamber. The first pipe directs exhaust from the fourth chamber to a first outlet at the first end cavity. A second pipe extends through the second, third and fourth baffles and includes an inlet in the third chamber. The second pipe directs exhaust from the third chamber to a second outlet at the second end cavity. | 11-19-2015 |
20150337699 | MUFFLER - Provided is a muffler having a double pipe portion formed therein in which an end portion of a first tubular member is inserted into a second tubular member from an end portion thereof. A leading end portion of the second tubular member is joined to an outer periphery of the first tubular member. A portion that forms the double pipe portion of the second tubular member comprises a first portion located closer to an end of the first tubular member, and a second portion that is located closer to an end of the second tubular member and that has an enlarged diameter compared with the first portion. A resonance chamber is formed between the first tubular member and the second portion. A communication path that allows communication between an exhaust flow path and the resonance chamber is formed between the first tubular member and the first portion. | 11-26-2015 |
20160003124 | VIBRATION REDUCTION DEVICE OF MUFFLER TAIL-PIPE FOR CONSTRUCTION EQUIPMENT - The present invention relates to a vibration reduction device of a muffler tail-pipe for construction equipment, comprising: an engine hood provided to one side of an engine room for the protection of the peripheral parts including an engine and a muffler, and having a through hole at one side of the top surface thereof; the muffler provided to the lower portion of the engine hood in a state where the muffler is connected to one side of the engine; a tail-pipe of which one end is connected to the muffler and the other end is protruded to the outside by penetrating the through hole of the engine hood; and a plurality of elastic support parts for fixing the tail-pipe such that the tail-pipe is elastically supported by the engine hood. The present invention can maximally reduce the vibration transmitted to the tail-pipe by the elastic support means when the tail-pipe vibrates with the muffler due to the vibration of the muffler by the engine, as the tail-pipe connected to the muffler is elastically supported from the engine hood through the elastic support parts. Therefore, the present invention can solve the problem of the connection portion of the muffler and the tail-pipe being easily deformed or damaged by the concentration of the stress to the connection portion of the muffler and the tail-pipe as the tail-pipe vibrates with the muffler according to the vibration of the muffler. | 01-07-2016 |
20160010523 | ATTENUATING ENGINE NOISE USING A REVERSE RESONATOR | 01-14-2016 |
20160017776 | MUFFLER - A muffler, in particular a rear muffler, for an exhaust gas system of an internal combustion engine, in particular a motor vehicle engine, comprises a housing, in particular a housing having a jacket and two end walls, and comprises at least one first pipe, in particular an inlet or outlet pipe which is in particular led through the jacket and which is connected to a second pipe, in particular to an inner pipe. The second pipe comprises a pipe piece into which a pipe piece of the first pipe led through an opening of an inner support element is plugged in an axially displaceable manner. In this respect, the pipe piece of the first pipe is preferably provided with slits into which nubs engage which are provided at the inner boundary of the opening of the support element. The end section of the first pipe is expanded in its region plugged into the pipe piece of the second pipe to fix the first pipe at the support element. | 01-21-2016 |
20160201529 | EXHAUST TAILPIPE AUXILIARY SOUND ENHANCEMENT HOLE | 07-14-2016 |
20160201530 | SPLIT PATH SILENCER | 07-14-2016 |