With Exhaust Pipe Patents (Class 181/228)
  • Patent number: 10641156
    Abstract: An exhaust pipe structure includes an exhaust pipe, a branching portion including an inflow port, a first flow path, a second flow path, a first discharge port, and a second discharge port, a first muffler, a first pipe, a second muffler, and a second pipe. The second flow path is lower in position in an up-down direction of a vehicle than the first flow path at a downstream side part of the second flow path including at least a portion of the second discharge port. The second pipe is lower in position in the up-down direction of the vehicle at an upstream side part connected to the second discharge port than an upstream side part of the first pipe connected to the first discharge port.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 5, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiko Koda, Toshio Murata, Shunsuke Niitani, Chikara Okawa, Hideki Fukushima, Takeyuki Harada
  • Patent number: 10393002
    Abstract: There is provided an exhaust device of a straddle-type vehicle. A first muffler body is arranged at one side, at which a drive chain is not arranged, in a region at the rear of a chamber. A second muffler body is arranged at another side, at which the drive chain is arranged. A first connection pipe interconnects the chamber and the first muffler body. A second connection pipe interconnects the chamber and the second muffler body. An exhaust control valve is configured to control a flow rate of exhaust air to circulate from an exhaust port toward the first muffler body via an exhaust pipe, the chamber and the first connection pipe. A part or all of the second connection pipe is formed to have a pipe shape by two or more plate materials, and has a non-true circular cross-sectional surface shape.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: August 27, 2019
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Yoshinori Sugi
  • Patent number: 9890952
    Abstract: An exhaust tube includes one end portion and the other end portion and is connected at one end portion to a combustion apparatus, of which inside is defined as an exhaust passage for combustion gas. An exhaust pipe has an outer diameter greater than that of exhaust tube, into which a part of exhaust tube on a side of the other end portion is introduced. An exhaust adapter is attached between an outer circumferential surface of exhaust tube and an inner circumferential surface of exhaust pipe. On the side close to the other end portion in exhaust tube relative to exhaust adapter, an exhaust passage hole 1a is provided separately from an opening in the other end portion of exhaust tube. Exhaust passage hole has an opening area greater than a cross-sectional area of the exhaust passage and is in communication with the exhaust passage.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: February 13, 2018
    Assignee: NORITZ CORPORATION
    Inventors: Takanori Nagano, Armando Morales
  • Patent number: 9758032
    Abstract: An exhaust muffler for transverse installation in a vehicle includes a muffler housing (26) elongated in the direction of a housing longitudinal axis (G) with a housing jacket (28) and two front walls (30, 32). The two front walls (30, 32) are arranged at spaced locations from one another and define an interior (34) of the muffler with the housing jacket (28). At least one inlet pipe (36) leads into the interior (34) of the muffler and at least one outlet pipe (20) leads out of the interior (34) of the muffler. At least one front wall (30, 32) has at least one predetermined deformation area (50, 52).
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 12, 2017
    Assignee: EBERSPÄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventors: Arnulf Spieth, Daniel Mesghena, Joachim Müller, Mathias Rothfuβ, Michael Weiβ
  • Patent number: 9752475
    Abstract: An exhaust system for an internal combustion engine includes a muffler, a first exhaust pipe which is connected to the muffler for sound damping, and a second exhaust pipe which extends in terms of flow in parallel relation to the first exhaust pipe and extends through first muffler in the absence of a flow communication with the first muffler. The first and second exhaust pipes originate from a common exhaust pipe. A switching valve adjusts hereby a throughflow cross section of the second exhaust pipe.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 5, 2017
    Assignee: AUDI AG
    Inventors: Axel Peters, Siamak Alizadeh, Gerd Verbeck
  • Patent number: 9657619
    Abstract: A method of exhaust gas aftertreatment of an exhaust gas of an internal combustion engine includes pre-treating the exhaust gas pre-treated by using a thermoreactor to catalytically oxidize the exhaust gas. Preferably, the exhaust gas is catalytically oxidized in the thermoreactor.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 23, 2017
    Assignee: GE JENBACHER GMBH & CO OG
    Inventor: Friedhelm Hillen
  • Patent number: 9611770
    Abstract: It is possible to simplify an internal structure of a silencer and it is possible to improve silencing performance while suppressing the increase of the size of the silencer. An exhaust pipe structure is constituted by an exhaust pipe (45) which is connected to an engine (4), and a silencer (43) which is disposed under the engine. A silencer inlet (43a) through which exhaust gas is introduced into the silencer is provided in the silencer and at the rear of a vehicle body. The exhaust pipe has a rear portion reversal pipe (62) by which a direction of an exhaust stream flowing rearward is reversed into a frontward direction. A downstream end side of the rear portion reversal pipe is connected to the silencer inlet. A silencer outlet (43b) through which exhaust gas is discharged from the silencer is provided in the silencer. The silencer outlet is provided at the front of the vehicle body. Thus, exhaust gas can flow inside the silencer unidirectionally from the rear toward the front.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: April 4, 2017
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Koichi Tanaka
  • Patent number: 9273641
    Abstract: A gas flow unit includes a gas flow inlet, a gas flow outlet and a gas flow chamber configured to convey a gas flow from the inlet to the outlet, wherein the gas flow inlet is configured to convey the gas flow in a first direction into the gas flow chamber and wherein the gas flow outlet is configured to convey the gas flow in a second direction from the gas flow chamber, wherein the second direction is angular in relation to the first direction, and wherein the gas flow inlet is an inlet into the gas flow chamber and the gas flow outlet is an outlet from the gas flow chamber. In the first gas flow direction, the gas flow chamber extends beyond a projection of an outer periphery of the gas flow outlet and defines a prolongation configured for conveying a first part of the gas flow such that it enters the gas flow outlet from a different direction than a second part of the gas flow entering the gas flow outlet without passing through the prolongation.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 1, 2016
    Assignee: Volvo Truck Corporation
    Inventors: Magnus Ising, Nader Najjar
  • Patent number: 9194275
    Abstract: A vehicle is equipped with an internal combustion engine, and an exhaust pipe of the internal combustion engine is supported on a vehicle body by a plurality of support members. A support member positioned on the mostdownstream side of the exhaust pipe, among the plurality of the support members, is a buffer member functioning as a resonance suppression mechanism that suppresses the resonance of the exhaust pipe.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: November 24, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shoji Ogimura
  • Publication number: 20150114750
    Abstract: An exhaust muffler for a vehicle includes a muffler body coupled to an exhaust pipe and a tailpipe coupled to the muffler body. The muffler body has a plurality of expansion chambers, an exit communication pipe that discharges exhaust to the tailpipe from one of the plurality of expansion chambers positioned in a most downstream part of an exhaust flow path, and a spark arrester arranged in the exit communication pipe. An exhaust flow path narrowing portion is provided at an entrance portion of the exit communication pipe.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Atsuya YOSHIDA
  • Patent number: 9010486
    Abstract: A silencer (1) for an exhaust gas installation of an internal combustion engine, particularly of a motor vehicle includes a housing (2), with a circumferential shell (3) closed in the peripheral direction (5) and an end base (6) at each of two longitudinal ends, spaced apart in an axial direction (4). A silencer insert (15) is arranged in the housing (2) and has an inlet pipe (8) for exhaust gas and an outlet pipe (10) for exhaust gas. The shell (3) has, in the peripheral direction (5) has at least one inlet shell-segment (11) and one outlet shell-segment (12). The inlet shell-segment has at least one inlet opening (7), into which such an inlet pipe (8) is inserted from the inside. The outlet shell-segment (12) has at least one outlet opening (9) into which such an outlet pipe (10) is inserted from the inside.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: April 21, 2015
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Joachim Andre, Norbert Schug
  • Publication number: 20150101885
    Abstract: A structure of an exhaust system for a cylinder deactivation (CDA) engine may include first, second and third baffles which are coupled in a main muffler, and divide an interior of the main muffler into first, second, third and fourth spaces respectively, a connecting pipe which connects the second space and the third space of the main muffler, and has a passage in which the exhaust gas flows, a first valve coupled to the passage of the connecting pipe to open and close the passage of the connecting pipe, and a second valve openably and closably coupled to the second baffle disposed between the second space and the third space, wherein the first baffle coupled between the first space and the second space, and the third baffle coupled between the third space and the fourth space, have a plurality of holes so that the exhaust gas flows therethrough.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Applicant: Hyundai Motor Company
    Inventors: Ho-Chan AN, Chul-Min Park, Seung-Hwan Lim, Jong-Ho Seon
  • Publication number: 20150101884
    Abstract: A structure of an exhaust system for a CDA engine may include three baffles coupled in a main muffler in a lateral direction, and dividing an interior of the main muffler into a first space, a second space, a third space, and a fourth space, a first connecting pipe disposed outside the main muffler, connecting the second space and the third space and having a passage in which exhaust gas flows, a second connecting pipe disposed outside the main muffler, connecting the second space and the third space, and having a passage in which the exhaust gas flows, a first valve coupled to the passage of the first connecting pipe, and a second valve coupled to the passage of the second connecting pipe.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 16, 2015
    Applicant: Hyundai Motor Company
    Inventors: Ho-Chan An, Chul-Min Park, Seung-Hwan Lim, Jong-Ho Seon
  • Patent number: 9004224
    Abstract: An exhaust system of a saddle-ride type vehicle includes engagement units to improve the exterior design of a muffler cover and a muffler cover for an excellent appearance that can be easily and reliably attached. A cylindrical muffler is connected to an exhaust pipe for exhausting exhaust from an engine E. A front cap is provided on a front side of a muffler body portion. A muffler cover covers part of the exhaust pipe and the front cap. In the exhaust system, multiple engagement units respectively include multiple engagement receiving parts and multiple engagement claw parts. The engagement receiving parts are provided on an outer surface wall of the front cap with an interval therebetween in a circumferential direction about a muffler center axis of the muffler. The engagement claw parts corresponding respectively to the multiple engagement receiving parts and are disposed on a back surface of the muffler cover.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: April 14, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yuki Uzawa
  • Patent number: 8997922
    Abstract: An exhaust muffler for a vehicle includes a muffler body coupled to an exhaust pipe and a tailpipe coupled to the muffler body. The muffler body has a plurality of expansion chambers, an exit communication pipe that discharges exhaust to the tailpipe from one of the plurality of expansion chambers positioned in a most downstream part of an exhaust flow path, and a spark arrester arranged in the exit communication pipe. An exhaust flow path narrowing portion is provided at an entrance portion of the exit communication pipe.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Atsuya Yoshida
  • Publication number: 20150053499
    Abstract: A structure for preventing thermal damage to an active noise control speaker includes: an exhaust pipe; a muffler; a speaker in a speaker housing disposed adjacent and connected to the exhaust pipe and the muffler that produces an acoustic wave having a phase that is reverse to a phase of a frequency of the exhaust sound of the exhaust gas; a speaker tube through which low-temperature wind flows into and out of the speaker housing; and an expanded tube portion connected to the speaker tube at an outer circumferential surface thereof, and has a cross-sectional area larger than a cross-sectional area of the speaker tube, in which heated air is discharged from the speaker housing thereby decreasing a temperature of the speaker, thereby improving performance of outputting an acoustic wave of the speaker in comparison with a case in which a temperature of the speaker is high.
    Type: Application
    Filed: December 14, 2013
    Publication date: February 26, 2015
    Applicant: Hyundai Motor Company
    Inventor: Jong-Seung WON
  • Patent number: 8939255
    Abstract: A motorcycle includes a second silencer separate from a first silencer. A first exhaust pipe connects an exhaust port and the first silencer. A connecting pipe portion connects the first silencer and the second silencer. A first expansion chamber of the first silencer is located downstream from the first exhaust pipe in the exhaust flow. A second expansion chamber of the first silencer is partitioned from the first expansion chamber. The second expansion chamber is located downstream from the first expansion chamber. The connecting pipe portion includes a second exhaust pipe, an exhaust control valve, and a third exhaust pipe. The second exhaust pipe is connected to the first expansion chamber. The exhaust control valve is disposed in the second exhaust pipe. The exhaust control valve controls the flow passage area of the second exhaust pipe. The third exhaust pipe is connected to the second expansion chamber.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 27, 2015
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Takahisa Uchida
  • Patent number: 8939254
    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).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 27, 2015
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Markus Schmitt, Michael Schmidt
  • Patent number: 8936133
    Abstract: Exhaust apparatus for four cycle (including Wankel) internal combustion engines is disclosed. The apparatus is configured to manage pressure waves created by expanding gas emitted from the engine combustion chambers, the net result being to enhance engine performance and attenuate noise over a wide range of engine RPMs.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 20, 2015
    Inventor: Greg Scott Esmond
  • Publication number: 20150008069
    Abstract: A vehicle is equipped with an internal combustion engine, and an exhaust pipe of the internal combustion engine is supported on a vehicle body by a plurality of support members. A support member positioned on the mostdownstream side of the exhaust pipe, among the plurality of the support members, is a buffer member functioning as a resonance suppression mechanism that suppresses the resonance of the exhaust pipe.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 8, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shoji OGIMURA
  • Publication number: 20150008068
    Abstract: In a muffler comprising a shell formed by joining a pair of shell halves each including a bottom wall and a side wall and defining an opening opposite to the bottom wall, the shell halves being joined to each other at the openings thereof, the muffler further comprising an inlet pipe for introducing exhaust gas into the shell and an outlet pipe for expelling exhaust gas from inside the shell, a depth of one of the shell halves is greater than a depth of the other shell half, and the inlet pipe and the outlet pipe are connected to the side wall of the one shell half so that the overall plane stiffness of the shell is well balanced and maximized. Therefore, without adding any reinforcement or increasing the wall thickness of the shell, the acoustic emission from the muffler can be minimized.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 8, 2015
    Inventors: Hidenori HAMASHIMA, Satoshi WATANABE, Hidenori SUZUKI
  • Patent number: 8919491
    Abstract: The present invention relates to a silencer device for a fluid line which comprises a resonator arrangement which comprises a first resonator tube comprising a first resonator chamber designed for a ?/4 damping of at least one sound wavelength, wherein the first resonator tube comprises a first longitudinal direction, two end walls facing each other in the first longitudinal direction and a first side wall extending between the end walls, and wherein the first resonator chamber is formed between the first side wall and the end walls of the first resonator tube.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 30, 2014
    Assignee: Webasto SE
    Inventors: Harald Trumler, Marco Pietrzyk, Werner Zimmerman, Nikolaus Gerhardt, Peter Neidenberger
  • Patent number: 8910747
    Abstract: A tail pipe assembly for a vehicle includes a tail pipe mounted to a muffler of the vehicle and discharging exhaust gas and condensation water to an outside, and at least one main collecting element that is mounted within the tail pipe, suppresses flow of the condensation water and temporarily stores the condensation water.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 16, 2014
    Assignee: Hyundai Motor Company
    Inventors: Sang Il Lee, Dea Gil Hwang, Jay-Yon Jo, Jongho Seon
  • Patent number: 8905187
    Abstract: A device for manipulating the exhaust outlet noise of a motor vehicle, having an exhaust flap which can be positioned in an exhaust pipe and which can be displaced in oscillatory fashion about an exhaust flap basic position in a defined angle range about the exhaust flap basic position in order to manipulate the exhaust outlet noise, wherein the exhaust flap basic position can be actively adjusted as a function of an engine rotational speed and/or an engine load, and wherein the angle range can be actively adjusted as a function of a frequency to be eliminated or attenuated, or a frequency to be generated or enhanced, of the exhaust outlet noise.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: December 9, 2014
    Assignees: Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Technofirst
    Inventors: Juergen Schorn, Christian Emile Marie Carme, Daniel Joseph Maguire
  • Publication number: 20140353077
    Abstract: A motorcycle includes a second silencer separate from a first silencer. A first exhaust pipe connects an exhaust port and the first silencer. A connecting pipe portion connects the first silencer and the second silencer. A first expansion chamber of the first silencer is located downstream from the first exhaust pipe in the exhaust flow. A second expansion chamber of the first silencer is partitioned from the first expansion chamber. The second expansion chamber is located downstream from the first expansion chamber. The connecting pipe portion includes a second exhaust pipe, an exhaust control valve, and a third exhaust pipe. The second exhaust pipe is connected to the first expansion chamber. The exhaust control valve is disposed in the second exhaust pipe. The exhaust control valve controls the flow passage area of the second exhaust pipe. The third exhaust pipe is connected to the second expansion chamber.
    Type: Application
    Filed: October 25, 2013
    Publication date: December 4, 2014
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Takahisa UCHIDA
  • Patent number: 8893471
    Abstract: Provided is an exhaust apparatus for a utility vehicle which discharges exhaust gas from exhaust pipes connected to exhaust ports of an engine including cylinders, the apparatus including an exhaust gathering portion gathering the exhaust pipes, a catalyst portion located on a downstream side of the exhaust gathering portion and purifying the exhaust gas, and a sensor attaching pipe provided between the exhaust gathering portion and the catalyst portion and to which an exhaust gas sensor is detachably attached, wherein the sensor attaching pipe, in a state where the exhaust gas sensor is attached, has a height in which a sensing portion of the exhaust gas sensor is located in the sensor attaching pipe, and the sensor attaching pipe is provided such that a top end to which the exhaust gas sensor is detachably attached is located above a base end and away from a surrounding heat source.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: November 25, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Jun Takagi
  • Publication number: 20140332311
    Abstract: In one embodiment of the invention, the noise of a supersonic jet of gas venting from a lower stack having a flow control means may be reduced by at least about 20 dBA by attaching an upper stack to the lower stack, said upper stack being packed with granulae to provide a bed height at least one diameter of the upper stack the cross section area of the interstitial voids between the granulae being at least about 2.25 times larger than the cross section area of the flow controlling means installed in the lower stack. The said bed is contained in the upper stack and kept in place by suitable upper and lower retainers such as, for example, a mesh or a perforated plate.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 13, 2014
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Grazyna Petela, Kamal K. Botros
  • Patent number: 8875836
    Abstract: 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.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: November 4, 2014
    Assignees: Hyundai Motor Company, Kia Motors Company
    Inventors: Ki-Chul Park, Ji-Heun Yook, Jay Yon Jo
  • Publication number: 20140318888
    Abstract: A silencer arrangement for exhaust systems of motor vehicles having internal combustion engines includes at least one rear exhaust silencer having at least one exhaust pipe for guiding the exhaust gas and at least one actuatable adjustment device. At least one adjustment body, which can be displaced between an exhaust closing position and an exhaust opening position, is associated with the at least one rear exhaust silencer. The silencer arrangement also includes an exhaust bypass device having at least one connection piece. It is arranged upstream of the at least one rear exhaust silencer for connecting to an exhaust manifold device. The bypass device includes at least one exhaust bypass pipe body which is fluidly connected to the at least one connection piece and has at least one exhaust bypass outlet for releasing the exhaust gas from the silencer arrangement.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 30, 2014
    Inventors: Roland Kess, Pamela Kess
  • Patent number: 8869932
    Abstract: A performance-enhancing crossover muffler for internal combustion engines includes an enclosed case having an inside, and two inlet pipes located inside the case having respective inlet ends extending through a frontside of the case for connection with two outside engine exhaust manifolds, and respective interior ends which merge together to define a merge entry. The muffler also includes one or more outlet pipes located inside the case with outlet end extending through a backside of the case for connection with an outside tailpipe, an interior end defining a merge exit, and one or more apertures in the outlet pipe communicating with the inside of the case. The muffler further includes a piping merge zone between the merge entry and the merge exit for commingling exhaust flows from the two engine exhaust manifolds. The two inlet pipes and the piping merge zone are without communication with the inside of the case.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 28, 2014
    Inventors: Boyd L. Butler, Trent V. Bray
  • Patent number: 8851230
    Abstract: A motorcycle includes an exhaust chamber (82), having defined therein a chamber expansion compartment (90) for exhaust gases, and a muffler (84) having defined therein muffler expansion compartments (92, 94, 96) for the exhaust gases on a downstream side of the exhaust chamber (82). Respective outer peripheral walls of the exhaust chamber (82) and the muffler (84) are formed by a common casing (69). The exhaust chamber (82) is positioned intermediate between a motorcycle combustion engine (E) and a motorcycle rear wheel (22). The exhaust chamber (82) has an inner side surface positioned laterally inwardly of an outer side surface (22a) of the rear wheel (22) in a motorcycle body widthwise direction, and the muffler (84) has a rear portion positioned laterally outwardly of the rear wheel (22).
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: October 7, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masashi Ono, Toshiyuki Tsubone, Yota Katsukawa, Satoshi Matsumoto
  • Publication number: 20140291067
    Abstract: An exhaust silencing device connected to an exhaust system of an engine is provided in which two outlet pipes that have at an upstream end thereof an opening portion opening within the silencer main body and that discharge exhaust gas within the silencer main body to an outside thereof are disposed within the silencer main body along a bottom thereof so that the distances thereof from the lowest part of the bottom are substantially equal, and the opening portion of one outlet pipe is directed further toward the bottom of the silencer main body than is the opening portion of the other outlet pipe. Such exhaust silencing device efficiently discharges to the outside the condensed water building up within the silencer main body so as not to impair an effect in reducing exhaust resistance by providing two outlet pipes that guide the exhaust gas to the outside.
    Type: Application
    Filed: August 27, 2012
    Publication date: October 2, 2014
    Applicants: YUTAKA GIKEN CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Teruaki Mukai, Jun Muto, Yasushi Kaneko
  • Patent number: 8844276
    Abstract: An exhaust muffler disposed in proximity to a cylinder of a general-purpose engine is provided, in which an exhaust muffler for a general-purpose engine is formed from a muffler main body connected to a cylinder of a general-purpose engine via an exhaust pipe and disposed adjacent to the cylinder, a partition member that divides the interior of the muffler main body into a first muffler chamber communicating with the exhaust pipe and a second muffler chamber communicating with an exhaust outlet of the muffler main body, and an exhaust cooling pipe exposed outside the muffler main body while providing communication between the first muffler chamber and the second muffler chamber. This enables exhaust gas to be cooled effectively by passing though the exhaust cooling pipe when moving from the first muffler chamber to the second muffler chamber, thus enhancing muffling by reducing the pressure of the exhaust gas.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: September 30, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shoji Kawase, Atsushi Maruyama, Toru Kawai
  • Patent number: 8833513
    Abstract: An exhaust muffler with a tail pipe for suppressing ripples, increasing an engine output and improving fuel consumption efficiency is provided. A chamber is provided in the middle of an exhaust pipe for an internal combustion engine. A tail pipe connected to an end portion of an exhaust opening of the exhaust pipe is provided. A plurality of fins are disposed inside the tail pipe in a spiral shape that is gradually widened toward a discharging direction of the exhaust gas. The chamber includes a cover body and an internal exhaust pipe surrounded by the cover body. The internal exhaust pipe includes a diffusion exhaust pipe having a wide bore and a compression exhaust pipe having a narrow bore. Diffusion pores are drilled on a portion of the side surface of the internal exhaust pipe.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 16, 2014
    Assignee: Matsushou Co., Ltd.
    Inventor: Noboru Matsumoto
  • Patent number: 8826651
    Abstract: An exhaust system for an internal combustion engine having a first exhaust tract assigned to a first group of cylinders of the internal combustion engine, and a second exhaust tract assigned to a second group of cylinders of the internal combustion engine, the first exhaust tract and the second exhaust tract being coupled to one another by a connecting line. A common bypass line branches off from the connecting line coupling the exhaust tracts.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: September 9, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Thomas Laube, Erwin Rutschmann
  • Patent number: 8807273
    Abstract: An exhaust muffler device has a ceramic catalyst body, and a holding tube having an end portion configured to hold the ceramic catalyst body therein with a holding mat therebetween. The end portion is reduced in diameter to form a reduced diameter portion. An exhaust pipe is connected to the holding tube, with a downstream end portion thereof being fitted to an inner circumference of the reduced diameter portion of the holding tube. An inner circumferential surface of the downstream end portion of the exhaust pipe is in proximity to a boundary portion of the holding mat and the ceramic catalyst body.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: August 19, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Atsushi Murakami, Hiroshi Mahira, Tadahisa Masatani, Kensuke Honma, Shiro Kokubu
  • Patent number: 8806859
    Abstract: An exhaust gas apparatus suppresses sound pressure level from increasing, and reducing its weight and production cost without need of a sub-muffler in a tail pipe and a sound deadening device having an air column resonance of a large capacity provided at the upstream opened end of the tail pipe. The exhaust gas apparatus is provided with an exhaust gas pipe, an upstream opened end connected to the sound deadening device positioned at the upstream side of an exhaust gas discharging direction, and a downstream opened end through which the exhaust gas is discharged to the atmosphere. A plate is provided at least one of the upstream opened end and the downstream opened end in opposing relationship with the exhaust gas discharging direction, and formed with an opened portion. The exhaust gas pipe is formed at its peripheral wall axially inwardly spaced apart from the plate with a through bore.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: August 19, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideyuki Komitsu, Nakaya Takagaki
  • Patent number: 8800710
    Abstract: A motorcycle with a muffler disposed downwardly of a rider's seat positioned, in a side view, upwardly of a rear wheel when a rear shock absorber is extended, to minimize sideway bulging of the muffler from a vehicle body and improve ride comfort, while avoiding interference between the muffler and other parts. An outer shell of a muffler has a rhombus cross section. The muffler is disposed on at least one side in a vehicle width direction of a rear wheel wherein one pair of side walls extend in parallel with each other out of side walls of the outer shell extending in a vertical direction. A side cover is formed to extend along the upper and outer side walls of the four side walls of the outer shell to cover the muffler from a side, downwardly of a rider's seat.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: August 12, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshitaka Hayama, Takuya Otsuka, Yusuke Inoue, Satoshi Matsushima
  • Publication number: 20140182961
    Abstract: A muffler for an exhaust system of an internal combustion engine has a muffler body, an inlet pipe, a primary exhaust pipe and an auxiliary exhaust pipe. The inlet pipe has an inlet outside the muffler body and an outlet inside the muffler body. The primary exhaust pipe has an inlet inside the muffler body, a main outlet outside the muffler body, and at least one auxiliary outlet defined in a side of the primary exhaust pipe between the inlet and the main outlet of the primary exhaust pipe. The auxiliary exhaust pipe fluidly communicates the at least one auxiliary outlet with an exterior of the muffler. A vehicle having a primary exhaust pipe and an auxiliary exhaust pipe is also disclosed.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Applicant: BOMBARDIER RECREATIONAL PRODUCTS INC.
    Inventor: Yvon BEDARD
  • Publication number: 20140166394
    Abstract: An exhaust system for an internal combustion engine, having a first exhaust tract and a second exhaust tract, wherein a first silencer device is arranged in an end section of the first exhaust tract and a second silencer device is arranged in an end section of the second exhaust tract, and the two exhaust tracts are connected in an inter-communicating manner by a crosstalk point, and, in the first or second exhaust tract downstream of the crosstalk point, there is provided a valve for the selective closure of the respective exhaust tract, wherein a distance between the valve and the crosstalk point is dimensioned such that, at a particular rotational speed of the engine, an exhaust line path between the valve and the crosstalk point serves as a quarter lambda resonator such that, at the rotational speed of the internal combustion engine, disturbing noises of the exhaust system are reduced.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 19, 2014
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Joerg Winkel
  • Publication number: 20140166393
    Abstract: A performance-enhancing crossover muffler for internal combustion engines includes an enclosed case having an inside, and two inlet pipes located inside the case having respective inlet ends extending through a frontside of the case for connection with two outside engine exhaust manifolds, and respective interior ends which merge together to define a merge entry. The muffler also includes one or more outlet pipes located inside the case with outlet end extending through a backside of the case for connection with an outside tailpipe, an interior end defining a merge exit, and one or more apertures in the outlet pipe communicating with the inside of the case. The muffler further includes a piping merge zone between the merge entry and the merge exit for commingling exhaust flows from the two engine exhaust manifolds. The two inlet pipes and the piping merge zone are without communication with the inside of the case.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Inventors: Boyd L. Butler, Trent V. Bray
  • Publication number: 20140158461
    Abstract: An attenuation device for a vehicle is provided, including a housing having a chamber formed therein. The housing is coupled to and in fluid communication with an air-conditioning circuit of the vehicle. A dampening member is disposed within the chamber of the housing. The dampening member includes a partition plate having at least one pipe disposed therein. The dampening member is configured to attenuate acoustic energy produced by a fluid of the air-conditioning circuit.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: David William Bertrand, Kastriot Shaska, Yafei Zhou
  • Publication number: 20140161671
    Abstract: The present invention is an exhaust mode selector system which is able to control an exhaust system, as the exhaust system changes to accommodate various driving conditions. The exhaust system includes various exhaust flow paths to configure the exhaust system for operating in a highway mode, used for when the vehicle is operating on the highway, and a city mode, used for when the vehicle is operating under city driving conditions. A controller is able to position one or more valves to various configurations to transition between city driving and highway driving. Each of the valves being configurable provides for optimization of the balance between required power, fuel economy, and noise reduction.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: CONTINENTAL AUTOMOTIVE SYSTEMS, INC.
    Inventors: Juan Guillermo Martinez Cuellar, Carlos Ernesto Colina Gallardo, Marco Antonio Lopez Vidaurri, Marco Antonio Aguilar Molina
  • Patent number: 8746400
    Abstract: An exhaust device of an engine includes an exhaust pipe connected to the engine, a silencer connected to the exhaust pipe and structured of an outer cylinder and an inner cylinder in which plural holes are formed, and a sound absorbing material disposed in a space formed between the inner cylinder and the outer cylinder. The exhaust device further includes a partition wall partitioning the space and supporting the sound absorbing material so that the sound absorbing material does not move in an axial direction of the silencer, and the partition wall includes a continuous hole allowing exhaust gas to flow through an upstream side to a downstream side of the partition wall in the space.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: June 10, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Hiroyuki Maejima, Kazutoshi Baba
  • Patent number: 8733498
    Abstract: The present invention relates to a housing (1) with a jacket (2), enclosing a housing interior space (7) in circumferential direction (8). For reducing self-induced vibrations of the jacket (2), at least one preloading device (14) is proposed, which is arranged in the housing interior space (7), which supports itself on a first supporting region (15) of the jacket (2) on the inside of the jacket (2) subject to a first preload (16) orientated towards the outside and which supports itself on a second supporting region (17) of the jacket (2) spaced from the first supporting region (15) on the jacket (2) on the inside subject to a second preload (18) orientated towards the outside.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 27, 2014
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventor: Arnulf Spieth
  • Patent number: 8708094
    Abstract: An exhaust system (1) for an internal combustion engine, in particular of a motor vehicle, has at least one exhaust tract (2), which has at least one exhaust pipe (3) which conducts exhaust gas, and has at least one active silencer (5). The active silencer (5) has a silencer housing (6) and at least one electro-acoustic converter (7), which is arranged in the silencer housing (6). At least one connection pipe (8) connects the silencer housing (6) fluidically to the exhaust pipe (3). The thermal loading of the converter (7) can be reduced if a sound propagation path (9) formed for the propagation of airborne noise in the connection pipe (8) is impermeable to thermal radiation (16) emanating from the exhaust gas in the exhaust pipe (3).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 29, 2014
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Felix Neumann, Viktor Koch
  • Patent number: 8708095
    Abstract: An exhaust system (1) for an internal combustion engine, in particular of a motor vehicle, has at least one exhaust tract (2), which has at least one exhaust pipe (3) which conducts exhaust gas, and has at least one active silencer (5). The active silencer (5) has a silencer housing (6) and at least one electro-acoustic converter (7) which is arranged in the silencer housing (6) and at least one connection pipe (8), which connects the silencer housing (6) fluidically to the exhaust pipe (3). The thermal loading of the converter (7) is reduced with a sound propagation path (9) formed for the propagation of airborne noise in the connection pipe (8) being impermeable to thermal radiation (16) emanating from the exhaust gas in the exhaust pipe (3).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 29, 2014
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Felix Neumann, Viktor Koch
  • Patent number: 8701823
    Abstract: A muffler of a motorcycle having an outside diameter greater than the outside diameter d1 of a rectilinear portion of a branch pipe is disposed at a transverse portion of an exhaust pipe. Since the muffler is formed to be roughly elliptic in sectional shape, the outside diameter of the muffler is represented by a major diameter da as the length in the direction of a major axis and a major diameter db as the length in the direction of a minor axis. When the muffler is disposed between a swing arm and a seat to be along the transverse portion of the exhaust pipe, the muffler can be disposed on the more vehicle front side while securing the capacity thereof. Therefore, protrusion of the muffler toward the rear of the vehicle is suppressed, and the external appearance of a vehicle rear portion is enhanced.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: April 22, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoshi Matsushima, Yusuke Inoue, Shiro Yama, Seiichiro Eguchi, Yosuke Inoue
  • Patent number: 8701824
    Abstract: The inside of a muffler main body formed from an outer plate into the shape of a cylinder is divided into an upstream-side expansion chamber and downstream-side expansion chambers by partition walls. A catalyst is contained in the upstream-side expansion chamber having a larger volume, and a cylinder-shaped reinforcement member is attached to an inner surface of the outer plate of the upstream-side expansion chamber.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: April 22, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshitaka Hayama, Kenichiro Nakamura
  • Patent number: 8695754
    Abstract: 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.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: April 15, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Tadashi Iiyama, Kenji Matsushita