Manifold Type Patents (Class 181/240)
  • Patent number: 10465671
    Abstract: A discharge valve assembly includes an outer shell. An inner sleeve is positioned within the outer shell. A side wall of the inner sleeve is spaced from a side wall of the outer shell along a radial direction. A distal end of the side wall of the inner sleeve is spaced from an end wall of the outer shell by a gap along an axial direction. The inner sleeve divides an interior volume of the outer shell into a first muffler cavity and a second muffler cavity. A related compressor is also provided.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 5, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Gregory William Hahn
  • Patent number: 10468645
    Abstract: A battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a tray, a battery pack received within the tray, a cover positioned over the battery pack and a mounting assembly connected to the tray and including at least one bushing configured to establish an interface with a vehicle component.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: November 5, 2019
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Eric Emil Jackson, Charlie Qian, Stephen Pien, Jim William Dunham, Paul Elia, Chris P. Roxin, Jagjit Romana, Tim Alan Mouch
  • Patent number: 10445632
    Abstract: A radio frequency identification (RFID) tag system includes a first portion that is configured to be secured to a component, and a second portion that removably couples to the first portion. The RFID tag system is active when the first portion is coupled to the second portion. The RFID tag system is deactivated when the first portion is uncoupled from the second portion.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 15, 2019
    Assignee: The Boeing Company
    Inventors: William David Kelsey, John William Glatfelter
  • Patent number: 10138795
    Abstract: A vehicle exhaust system component assembly includes a first exhaust component defining a first center axis and a second exhaust component downstream of the first exhaust component and defining a second center axis that is spaced apart from and generally parallel to the first center axis. The first and second exhaust components are spaced apart from each other by an area. A plenum is positioned substantially within the area, and has a first end connected to the first exhaust component and a second end connected to the second exhaust component. The plenum is defined by a non-uniform cross-sectional shape as the plenum extends along a length from the first end to the second end. A doser is mounted to the plenum and is configured to inject a reducing agent to mix with exhaust gases within the plenum.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 27, 2018
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Jerome Brian Hornback
  • Patent number: 9752489
    Abstract: A connector for coupling an exhaust manifold with a turbocharger housing may include a manifold coupling part coupled with the exhaust manifold, a housing coupling part integrally coupled with an end of the manifold coupling part and coupled with the turbocharger housing, and a plurality of exhaust gas paths penetrating through the manifold coupling part and the housing coupling part.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: September 5, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Dong Ho Chu
  • Patent number: 9528425
    Abstract: An exhaust system structure includes an exhaust manifold discharging exhaust gas through at least one runner towards an exhaust pipe. A front pipe is connected to a front end of the exhaust pipe. A collector connects the at least one runner and the front pipe. The collector comprises at least one inlet communicating with an exit of the at least one runner. An outlet communicates with the front pipe such that the outlet discharges the exhaust gas into the front pipe through the at least one inlet. An extended portion has a radius greater than or equal to that of the exit of the at least one runner.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 27, 2016
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jong Kyu Lee, Jeong Il Lee, Dong Jun Yu
  • Patent number: 9022170
    Abstract: A muffler is capable of stably supporting the catalytic converter in a muffler box with a pair of partitions. The muffler box includes first and second box halves joined together with open surfaces thereof abutting each other, and first and second partition plates interposed between the first and second box halves and overlapping each other to separate inside of the muffler box into first and second silencing chambers and define a third silencing chamber between the first and second partition plates, one end opening of a cylindrical holding tube housing and holding the catalytic converter is connected to the exhaust inlet pipe, the pair of partition plates support the holding tube in such a way as to wrap an outer peripheral surface thereof, and another end opening of the holding tube is communicated with the exhaust outlet pipe through the first, second, and third silencing chambers in this order.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 5, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventor: Sayaka Yasoshina
  • Patent number: 8813907
    Abstract: A noise reduction system with a chamber includes a chamber (17) which is provided at a portion of a supply path connecting a flow path in an upstream side of a combustor in a jet engine to a plurality of microjet nozzles which is provided at an exhaust side peripheral edge of a main nozzle of the jet engine, wherein the supply path is configured to supply part of compressed air from the flow path into the chamber (17), and the chamber (17) is configured to inject the compressed air through the plurality of the microjet nozzles (63) to a jet flow.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 26, 2014
    Assignee: IHI Corporation
    Inventors: Nozomi Tanaka, Shinya Kusuda, Tsutomu Oishi, Yoshinori Oba
  • Patent number: 8602159
    Abstract: A muffler providing a compact and low-profile form factor for small two-stroke engines is described, particularly useful for aerodynamic radio controlled aircraft. The muffler comprises a tuned internal header eliminating the need for an external header to mount the inventive muffler to the exhaust port of a two-stroke engine while maintaining enhanced engine performance, obviating the need for a conventional tuned-pipe exhaust.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 10, 2013
    Inventors: Chris B. Harris, Chris B. Pellegrino, Gregory James Stadeli, Dean William Glass
  • Patent number: 8517143
    Abstract: In order to improve an arrangement of a silencer on a combustion motor, whereby the silencer has a connection piece which with an end area adjoins an outlet in the cylinder of the combustion motor forms a flow connection between a combustion chamber of the combustion motor and the silencer in such a way a disturbance-free flow connection between a combustion chamber in the cylinder and the silencer is made possible, and more particularly to simplify the mounting of a silencer on the cylinder of a combustion motor, the internal diameter of the end area is made larger than the internal diameter of the outlet.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: August 27, 2013
    Assignee: Makita Corporation
    Inventor: Michael Schoenfeld
  • Patent number: 8439157
    Abstract: An object of the present invention is to provide a muffler mounting structure configured to be able to prevent fastening parts from slackening by reducing the thermal conductivity from an exhaust port to the muffler mounting bosses and an engine including the muffler mounting structure. An engine of the present invention 100 includes a cylinder block 101 or the cylinder head 10 constitutes a combustion chamber 105 with a piston 104, an exhaust port configured to communicate with the combustion chamber, and a muffler mounted to an outlet of the exhaust port, wherein the muffler is mounted with a muffler mounting boss into which a fixing part is fitted, and the muffler mounting boss is connected to a fin formed in the cylinder.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: May 14, 2013
    Assignee: Makita Corporation
    Inventors: Masaki Sugiyama, Tetsuya Hasegawa
  • Patent number: 8413760
    Abstract: A muffler for an internal combustion engine includes a first shell includes a flexible portion, an intake conduit, and a second shell coupled to the first shell. The intake conduit extends outwardly from the first shell and is configured to be inserted into an exhaust port of an engine. The flexible portion surrounds the intake conduit. Upon attachment to the engine, compression force is stored via elastic deflection of the flexible portion of the first shell, thereby pressing the intake conduit into the exhaust port such that a seal is formed.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: April 9, 2013
    Assignee: Briggs & Stratton Corporation
    Inventors: Christopher J. Drew, John R. Schneiker
  • Patent number: 8397531
    Abstract: A compressor has a suction port, a discharge port, and an economizer port. A condenser is downstream of the discharge port. An evaporator is upstream of the suction port. An expansion device is between the condenser and the evaporator. An economizer is between the condenser and the evaporator. An economizer line extends from the economizer to the economizer port. A resonator is located in the economizer line and has a first branch and a second branch. A first flowpath length across the resonator through the second branch is longer than a second flowpath length across the resonator through the first branch.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: March 19, 2013
    Assignee: Carrier Corporation
    Inventor: David M. Rockwell
  • Patent number: 8360200
    Abstract: A muffler includes a muffler body in which a muffler chamber is formed by a base, a cover, and a baffle accommodated in the muffler chamber and disposed in the vicinity of the exhaust gas entry port of the muffler body. A guide portion which changes flow of an exhaust gas that enters from the exhaust gas entry port is integrally provided to the baffle by cut-and-raise of a portion of the baffle.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: January 29, 2013
    Assignee: Husqvarna Zenoah Co., Ltd.
    Inventor: Yuu Sugishita
  • Patent number: 8356476
    Abstract: A Tier 4 ready silencer that can accept both DOCs and DPFs to meet Tier 3 and can interface with an SCR system to meet Tier 4. The invention includes a silencer compartment with empty filter/catalyst banks in the shape of a V. DOCs and DPFs can be added and arranged in the V-shaped banks as needed. Various exhaust fins direct exhaust flow through the filters/catalysts. Multiple exhaust inlets to the device provide the most direct route possible from the engine outlets. A mixing tube and an SCR system can be added to the output port to comply with Tier 4.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: January 22, 2013
    Inventors: Scott Gall, Eric Delgado, Ryan Murphy, Zach Halcomb
  • Patent number: 8336301
    Abstract: The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas treatment elements, which are arranged in the housing and through which a parallel flow is possible. The unit further includes an outlet nozzle, which penetrates a side face of the housing, and an outlet space disposed in the housing, whereby the outlet of at least one of the exhaust gas treatment elements opens into the outlet space. The rigidity and/or effectiveness of the exhaust gas treatment unit can be improved by means of a funnel body disposed in the outlet space, and comprising a funnel surface which is permeable to exhaust gas. The funnel body connects an outlet end of one of the exhaust gas treatment elements with the outlet nozzle.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: December 25, 2012
    Assignee: J. Eberspaecher GmbH & Co. KG
    Inventors: Marcus Werni, Andreas Sauer
  • Patent number: 8307944
    Abstract: A muffler (1) for an exhaust system (2) of an internal combustion engine, especially of a motor vehicle, with a muffler housing (3), which encloses a housing interior space (5), and with at least one exhaust gas-carrying hollow body (4) with two half shells in a half shell construction. The hollow body is arranged in the housing interior space (5). The two half shells (14, 15) of the hollow body (4) are fastened to one another in the area of a separating plane (16). The assembly of the muffler (1) or of the hollow body (4) can be simplified if the two half shells (14, 15) are fastened to one another by fastening elements (17, 18), which are formed directly on the half shells (14, 15).
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 13, 2012
    Assignee: J. Eberspächer GmbH & Co. KG
    Inventors: Thomas Reinheimer, Michael Schmidt
  • Publication number: 20120228054
    Abstract: A noise reduction system with a chamber includes a chamber (17) which is provided at a portion of a supply path connecting a flow path in an upstream side of a combustor in a jet engine to a plurality of microjet nozzles which is provided at an exhaust side peripheral edge of a main nozzle of the jet engine, wherein the supply path is configured to supply part of compressed air from the flow path into the chamber (17), and the chamber (17) is configured to inject the compressed air through the plurality of the microjet nozzles (63) to a jet flow.
    Type: Application
    Filed: October 27, 2010
    Publication date: September 13, 2012
    Inventors: Nozomi Tanaka, Shinya Kusuda, Tsutomu Oishi, Yoshinori Oba
  • Patent number: 8251173
    Abstract: An engine includes an exhaust conduit having an exhaust port on an end of the exhaust conduit. The exhaust conduit has an angled inside surface that has a cross section that widens toward the exhaust port. The engine further includes a muffler having a housing with an intake pipe. The intake pipe is inserted through the exhaust port such that the intake pipe is wedged into the angled inside surface of the exhaust conduit.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: August 28, 2012
    Assignee: Briggs & Stratton Corporation
    Inventors: Christopher J. Drew, John R. Schneiker
  • Patent number: 8177022
    Abstract: Wall partitioning between outside and inside of a room has an opening portion closed with a film. Sound insulating plate, comprising a lamination of a sound reflecting plate and a sound absorbing member, is supported in opposed relation to the opening portion and at an interval from the opening portion. Sound transmitted from outside of the room into the room through the film is reflected from the sound reflecting plate and then diffracted via sides of the interval, defined between the sound reflecting plate and the wall, to behind the reflecting plate to reach a human listener. Thus, with a mechanical construction, sound, propagated from outside the room into the room, can be made to be heard as sound of frequency characteristics desired by a human listener present in the room.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: May 15, 2012
    Assignee: Yamaha Corporation
    Inventor: Yoshikazu Honji
  • Patent number: 8172038
    Abstract: A silencer for a two-stroke engine includes a first chamber and a second chamber, wherein a flow channel is provided between an outlet of a combustion chamber and the first chamber. A high charge degree of the combustion chamber has a pressure ratio in the region of the outlet which reduces or prevents an escape of fresh gas from the combustion chamber. The flow channel between the outlet and the first chamber is flow-favorably shaped in such a manner that the exhaust gas that flows out of the outlet because of its mass inertia predominantly flows into the first chamber and following charging of the first chamber flows back again and as a result a back pressure is formed in the direction of the combustion chamber.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: May 8, 2012
    Assignee: DOLMAR GmbH
    Inventor: Christian Kellermann
  • Patent number: 8146708
    Abstract: Disclosed is a muffler (1, 21, 41) integrated with a catalytic converter bed (9, 32, 52) including a polymeric muffler body (2, 22, 42), an inlet pipe (3, 23, 43) in flow communication with engine exhaust, said inlet pipe connected to a first body mounting adapter (5, 25, 45) so as to hold the inlet pipe a heat insulating distance from said polymeric muffler body, said inlet pipe in flow communication with an inlet of said catalytic converter bed (9, 32, 52), and a perforated exhaust pipe (4, 34, 44) in flow communication with an outlet of the catalytic converter bed, said perforated exhaust pipe mounted on a second body mounting adapter (6, 26, 56) so as to hold the perforated exhaust pipe a heat insulating distance from the polymeric muffler body; said inlet pipe and said perforated exhaust pipe holding said catalytic converter bed a heat insulating distance from the polymeric muffler body, said first body mounting adapter, polymeric muffler body, and second body mounting adapter forming a sealed internal c
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: April 3, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Karl Paul Maurer, Daniel P. Jones
  • Patent number: 8132646
    Abstract: An exhaust gas muffler for an internal combustion engine, especially the engine of a manually-guided implement such as a power saw, a cut-off machine, or the like. The muffler has a housing having an inlet for exhaust gases and an outlet out of the housing. The housing has an outer wall over which the exhaust gases from the outlet flow. To achieve an adequate cooling of the exhaust gas muffler and the discharging exhaust gases, the exhaust gases out of the outlet draw in atmospheric air between the exhaust gases and the outer wall of the housing.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: March 13, 2012
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Fritz Kiesewetter, Georg Maier
  • Patent number: 8083026
    Abstract: A muffler for attenuating acoustic noise in a gas flow that includes a casing having a substantially-rectangular cross-section with an inlet opening in an inlet end and an outlet opening in an outlet end, so that a gas flow containing acoustic noise passes from the inlet opening to the outlet opening. The muffler also includes a V-shaped sound diffuser disposed within the casing and spanning the distance between opposing top and bottom walls of the casing. The sound diffuser comprises a pair of elongate leg plates having base ends attached to the outlet end on opposite sides of the outlet opening, and tip ends merged into an apex that is aligned with the inlet opening. Each leg plate has a plurality of apertures formed therein, and the apex splits the inlet gas flow into two side flows, with each side flow passing through the plurality of apertures in one of the leg plates to reach the outlet opening.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: December 27, 2011
    Inventor: Boyd L. Butler
  • Patent number: 8028798
    Abstract: An exhaust-pipe structure for a saddle-ride type vehicle includes expansion paths each having a capacity appropriate for the output capacity of a corresponding cylinder. A front exhaust pipe and a rear exhaust pipe extend from a front cylinder and a rear cylinder constituting a V-type engine, respectively. A silencer is connected to rear end portions of the front and rear exhaust pipes. As expansion chambers, the silencer is provided with a lower first chamber led from the front cylinder and an upper first chamber led from the rear cylinder. A protruding space protruding from the lower first chamber is formed so that the capacity of the lower first chamber led from the front cylinder is larger than the capacity of the upper first chamber led from the rear cylinder.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 4, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masashi Koyanagi, Yoichi Shihozawa, Taichi Mori, Hayato Yamazaki
  • Patent number: 7971681
    Abstract: An exhaust-gas muffler (1) has a housing (2) through which at least one sleeve (11) projects. At one end, the sleeve (11) has an attachment opening (10) and at the opposite-lying end has an access opening (14). To avoid a contamination of the sleeve (11) during operation, a plug (15, 25, 35, 40, 45, 55) of a pressed metal wire is arranged in the access opening (14).
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: July 5, 2011
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Eberhard Bohnaker, Rebekka Helfen, Johannes Menzel, Helmut Zimmermann
  • Patent number: 7967106
    Abstract: An air induction sound modification system for an internal combustion engine includes a multi-frequency sound suppression unit having Helmholtz resonators and a multi-component expansion chamber. A sound generator, which functions to radiate sound at a desirable, tuned frequency, extends between the multi-function sound suppression unit and a second expansion chamber, such as an air cleaner box.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: June 28, 2011
    Assignee: Ford Global Technologies
    Inventors: Tony Ross, Steve Droste, Harwinder Hehar, Jose Arteaga
  • Patent number: 7934375
    Abstract: The present invention relates to a balance pipe assembly for a vehicle exhaust system including at least a pair of exhaust pipes or pipe shaped portions, and a further pipe or pipe shaped portion extending between the exhaust pipes or pipe shaped portions so as to act as a balance pipe. The assembly further includes at least one of the exhaust pipes or pipe shaped portions including means adapted to reduce the pressure of exhaust gasses passing there through at a position downstream of the balance pipe or pipe shaped portion.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: May 3, 2011
    Assignee: Pacemaker Headers Pty Ltd
    Inventor: Michael Richter
  • Patent number: 7931119
    Abstract: A support structure for an exhaust pipe includes left and right side frames disposed on a lower side of a rear floor and a back panel extending downward from the rear floor joined to rear end portions of the side frames. Reinforcing plates join the back panel on a vehicle rear side in positions facing the rear of the side frames. Stays extending in a rearward direction mount to the respective reinforcing plates and support a bumper member. A muffler disposed below the rear floor and on a front side of the back panel or an exhaust pipe connected thereto, is supported on a vehicle body by a hanger rubber. A flange portion that is formed with a reinforcing plate extends rearwardly and perpendicularly therefrom. A hanger rubber mounts to the flange portion to support the muffler or exhaust pipe.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: April 26, 2011
    Assignee: Suzuki Motor Corporation
    Inventor: Akihiro Fujita
  • Patent number: 7896127
    Abstract: A muffler unit for a general-purpose engine includes a muffler (40) having a maze of sound-deadening chambers (101, 102, 103) defined therein and an inlet pipe (85) disposed inside the muffler. The inlet pipe has an open end (106) connected to an exhaust port of the engine via an exhaust pipe (43), a closed end (107) opposite to the open end, and perforations (108) provided near the open end and connecting an internal space of the inlet pipe and a first sound-deadening chamber (101). The closed end of the inlet pipe is exposed to the outside air, so that exhaust gasses are cooled when the gasses impinge on the closed end of the inlet pipe.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: March 1, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshikazu Sato, Kazuhiro Sakamoto, Gaku Naoe, Souhei Honda
  • Patent number: 7854296
    Abstract: 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.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: December 21, 2010
    Assignee: Certified Ports Corporation
    Inventors: Troy M. Saunders, Ronald J. Donahue
  • Patent number: 7775323
    Abstract: A motor chain saw includes a housing with a housing wall, which has an opening for exhaust gases and a hood extending outside the housing through the opening, with a hood opening pointing to one side. Exhaust gases flowing from an interior of the housing in an exhaust jet (S) are guided to the outside through the opening. A fin is arranged on the opening and provides a silencer for exhaust gases directed towards a flow direction of the exhaust jet (S) escaping from the hood.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: August 17, 2010
    Assignee: Dolmar GmbH
    Inventor: Henning Schweinberger
  • Patent number: 7726443
    Abstract: A muffler of a work machine in the form of an engine blower includes: a muffler body; and a diffuser that covers an exhaust outlet of exhaust gas provided on the muffler body. The diffuser has a diffusion space to diffuse the exhaust gas and an exhaust surface on which a plurality of exhaust circular holes are provided to exhaust the exhaust gas to an outside. An opening ratio provided by the exhaust holes of the exhaust surface is gradually increased from a portion corresponding to the exhaust opening toward an outer periphery of the exhaust surface.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 1, 2010
    Assignee: Husovarna Zenoah Co., Ltd.
    Inventors: Koue Miyazawa, Naomi Mizuno
  • Publication number: 20100083512
    Abstract: A muffler includes a muffler body disposed on a lower portion of an engine and a passage that extends upward from the muffler body and is opened in an upper front portion of a chain saw body. Thus, exhaust gas can be discharged forward from the chain saw body, so that exhaust sounds can be dispersed forward. Consequently, the exhaust sounds propagated to an operator can be reduced and therefore a work environment can be improved. Also, since exhaust gas is discharged after the exhaust gas passes through a long passage extending upward from the muffler body, the exhaust gas can be cooled down. Accordingly, in the chain saw body typically covered with a synthetic-resin case in which exhaust outlets are formed on positions corresponding to outlets of the passage, peripheries of the exhaust outlets can be prevented from being discolored by heat of exhaust gas.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Applicant: Husqvarna Zenoah Co., Ltd.
    Inventors: Koichi SHIMOKAWA, Buhei Kobayashi
  • Patent number: 7621370
    Abstract: A sound increase apparatus includes a partition wall adapted to divide an engine room for defining a first engine room space that is located on a side of a dash panel and a second engine room space in which an engine is installed, and a first pressure fluctuation amplification unit inter-communicating an engine inlet pipe arranged in the second engine room space and the first engine room space. The first pressure fluctuation amplification unit amplifies a pressure fluctuation of a first frequency selected from a plurality of frequencies when pressure of air residing inside the engine inlet pipe fluctuates at the plurality of frequencies.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: November 24, 2009
    Assignees: Nissan Motor Co., Ltd., Mahle Filter Systems Japan Corporation
    Inventors: Hiroyuki Abe, Hiromichi Akamatsu, Akira Sasaki, Masashi Shinada, Yuta Saito
  • Patent number: 7617675
    Abstract: In order to make available an exhaust gas system for a combustion engine with an external housing, which contains at least one rear shell and one front shell, and with a catalyst chamber, in which at least one catalyst element is arranged, and with an exhaust gas duct, from which exhaust gas is conveyed from the catalyst chamber, said exhaust gas system including few components and being able to be produced cost-effectively and wherein harmful thermal stresses in the components of the exhaust gas system are largely avoided, the catalyst chamber also forms the exhaust gas duct. The catalyst chamber has at least two chamber halves, and the exhaust gas duct is provided materially uniform and in one piece in at least one chamber half.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: November 17, 2009
    Assignee: DOLMAR, GmbH
    Inventor: Christian Kellermann
  • Patent number: 7487633
    Abstract: The exhaust gas purification device has a first chamber having an exhaust pipe inlet, an ambient air inlet, and an exhaust gas outlet. A Venturi is arranged within the chamber, having an inlet end communicating with an ambient air inlet, a throat, and an outlet end communicating with an exhaust gas outlet. The Venturi has an exhaust gas inlet between its inlet end and its outlet end, receiving exhaust gas from within the chamber, directed generally towards the outlet end of the Venturi, so that ambient air and exhaust air are mixed in passing through the Venturi to its exhaust gas outlet. A perforated pipe within the first chamber receives the exhaust gas, and the exhaust gas escapes there from via the perforations, into the chamber and thence to the Venturi. A second chamber, having a catalytic substrate assembly mounted therein, receives the mixed ambient air and exhaust air from the exhaust gas outlet of the Venturi, and has an exhaust pipe outlet.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 10, 2009
    Assignee: Nett Technologies Inc.
    Inventors: Janusz Popik, Ryszard Zbigniew Popik, Justin Xiaogang Yao
  • Publication number: 20080236941
    Abstract: An exhaust valve and a catalyst can be easily disposed of in a simple manner. The interior of a triangular muffler is partitioned into three expansion chambers. A manifold pipe is connected to the second, middle expansion chamber sideways from a lower portion thereof and is accommodated therein so as to face upward. A catalyst is accommodated in the interior of the manifold pipe. Exhaust gas flowing out from an open end of the manifold pipe expands into the second chamber. A short-circuiting aperture is formed in a second separator and is opened and closed with an exhaust valve installed within the third chamber. The exhaust valve is normally closed by a spring. When the exhaust pressure reaches a predetermined magnitude, the exhaust valve opens automatically, allowing the exhaust gas to flow out into the third chamber through the short-circuiting aperture, thereby controlling the exhaust pressure.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Inventors: Yuzuru ISHIKAWA, Mitsunobu Imada
  • Patent number: 7407036
    Abstract: To provide a muffler for a compact combustion engine, which is simple in structure and effective to sufficiently reduce the temperature of exhaust gases while avoiding contact with an external air, an exhaust guide passage 7 for communicating the exhaust gases (G) to a discharge port (63) is provided within an interior hollow of a muffler housing 6 defining an exhaust chamber (61) therein, and a side wall of this exhaust guide passage (7) is constituted by a portion (6W) of the muffler housing (6) and a duct wall (71) jointed to the muffler housing (6).
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: August 5, 2008
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Masanori Kobayashi, Tsuneyoshi Yuasa
  • Patent number: 7380637
    Abstract: The invention is directed to an exhaust-gas muffler (1) of a handheld work apparatus driven by an internal combustion engine. The exhaust-gas muffler (1) includes a muffler housing (2) which includes an engine-end wall (3) having an inlet window (4) as well as an outlet (5). Attachment means (6) for fixing the exhaust-gas muffler (1) on the internal combustion engine are provided on the engine-end wall (3) in the region of the inlet window (4). The engine-end wall (3) is provided with a reinforcing sheet metal piece (7) on the inner side of the exhaust-gas muffler (1) in the region of the attachment device (6). A discharge channel (8), which leads to the outlet (5), is formed at least between a part region of the reinforcing sheet metal piece (7) and the adjoining region of the muffler housing (2).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 3, 2008
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Guilherme Pizzato Sieben, Ralf Blechschmidt, Helmut Schlessmann
  • Patent number: 7360518
    Abstract: An expandable manifold comprises an expansion chamber defined by a resilient surface. Intake is provided by a conduit extending into the chamber. As reverse impulses resulting from the closing of an intake valve enter the expansion chamber from the output end of the chamber, the volume of the chamber increases as the resilient surface expands. The reverse impulses propagate along the inner surface of the resilient surface toward a void defined by the outer surface of the conduct and the inner surface of the resilient surface. When the intake valve reopens, the reverse impulse flow is redirected and combined with intake flow from the source of fuel/air. The reverse impulses are redirected within and proximate the void. Energy associated with the reverse flow is redirected and combined with the forward flow to improve overall engine performance.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: April 22, 2008
    Inventor: Robert M. Egan
  • Patent number: 7252177
    Abstract: An exhaust manifold has a structure such that an end portion of a collecting section where pipes connected to respective cylinders of an engine are collected is connected to an exhaust pipe via a joint tube member. The joint tube member is constituted by an upper joint portion and a lower joint portion, and cut-out grooves are formed on both joining portions of the upper joint portion or the lower joint portion. With the cut-out grooves, a partition plate is engaged to be positioned, and in this state, the partition plate is fixed to the upper joint portion or the lower joint portion.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 7, 2007
    Assignee: Calsonic Kansei Corporation
    Inventor: Tsukasa Minato
  • Patent number: 7198017
    Abstract: An intake manifold 10 in the air intake tract of an internal combustion engine which has a main flow cross section 14 between an oncoming flow side 12 and an outgoing flow side 13. At least one resonator chamber 23 is arranged on the circumference of the main flow cross section 14 in communication with the main flow cross section 14. The resonator chamber 23 is surrounded by side walls 30 and closed by a cover 28, with the side walls 30 of the resonator chamber 23 and the wall 15 forming the main flow cross section 14 being manufactured together in one piece. A parting plane 31 situated between the cover 28 and the side walls 30 of the resonator chamber 23 is arranged outside of the wall 15 forming the main flow cross section 14.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: April 3, 2007
    Assignee: Mann & Hummel GmbH
    Inventors: Sabine Vogt, Juergen Werner
  • Patent number: 7090048
    Abstract: A system for attenuating exhaust noise from an engine with a first group of active cylinders and a second group of deactivatable cylinders includes a first exhaust manifold connected to the first group of active cylinders and a second exhaust manifold connected to the second group of deactivatable cylinders. The second exhaust manifold is connected to the first exhaust manifold such that the second exhaust manifold acts as a resonator to attenuate sound from the first group of active cylinders when the second group of cylinders is deactivated.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 15, 2006
    Assignee: General Motors Corporation
    Inventors: William C. Albertson, Richard W. Hart, Aziz Bakar
  • Patent number: 7073625
    Abstract: Either or both of an exhaust pipe coupled to the output end of an automobile engine collector pipe or the plurality of pipes coupled to the input apertures of the collector pipe from the engine are apertured along their lengths and contained within a further surrounding pipe in providing an exhaust which simultaneously serves as a muffler for the vehicle and to traverse the various component parts of its exhaust system and/or the vehicle engine when composed of a plurality of pipe segments, individual ones of which are of preselected length, and cut at their respective ends at preselected angles for joining together in appropriate orientation.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: July 11, 2006
    Inventor: Randolph S. Barth
  • Patent number: 6978605
    Abstract: In an exhaust emission control system for an engine, comprising an exhaust emission control catalyst disposed in an exhaust muffler whose inside is divided into a plurality of chambers, at least a portion of the inside of the exhaust muffler is divided into a first chamber for converting mainly NOx in exhaust gas and a second chamber for converting HC and CO in the exhaust gas. The exhaust muffler comprises: a partition wall having a conduit for guiding the exhaust gas from the first chamber to the second chamber; an exhaust gas inlet for introducing the exhaust gas into the first chamber; an external-air suction means for sucking external air into the second chamber; and a discharge pipe for discharging the external air and the exhaust gas flowing through the second chamber.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: December 27, 2005
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shosaku Chiba, Akihito Kasai
  • Patent number: 6966402
    Abstract: A heat shield includes an inner portion, an outer portion, first and second insulating portions, and a deflecting portion. The inner portion includes a reflective material to reflect thermal energy that radiates from a heat/acoustic source. The outer portion includes a rigid material to provide structural support for the heat shield. The first and second insulating portions are intermediately positioned between the inner and outer portions. The deflecting portion is intermediately positioned between the first and second insulating portions to deflect acoustics from the heat/acoustic source. A method for manufacturing the heat shield is also disclosed.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: November 22, 2005
    Assignee: DANA Corporation
    Inventors: Calin Matias, Mark Boogemans, Jason Kirkwood
  • Patent number: 6955043
    Abstract: A muffler assembly for an internal combustion engine of a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like includes an exhaust-gas muffler (1) which has a muffler housing (10). The muffler housing (10) is formed essentially from two half shells (24, 25) connected substantially fluid-tight to each other. The interior space of the muffler housing (10) includes at least two chambers (2, 3) which are partitioned from each other by a partition wall (4). A catalytic converter (5) is mounted in the partition wall (4). In the interior space of the muffler housing (10), an exhaust-gas inlet (6) opens which is connected to an exhaust-gas stub (9) of the cylinder (8) of the engine. The exhaust-gas muffler has an exhaust-gas outlet (7) which conducts exhaust gas from the interior space.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: October 18, 2005
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jörg Schlossarczyk, Georg Maier, Tommy Roitsch
  • Patent number: 6938728
    Abstract: An air induction assembly includes a tuning tube that is integrally formed with an air duct having a distal tube end extending into a resonance chamber. The air duct includes a shoulder portion that transitions into a base end of the tuning tube. The shoulder portion has a greater diameter than the tuning tube and defines an external duct surface. The resonance chamber includes an opening for receiving the tuning tube. A flange surrounds the opening and defines an external resonance chamber surface. The external resonance chamber surface abuts against the external duct surface to define an attachment interface. The assembly is welded at the attachment interface to securely attach the resonance chamber to the air duct.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: September 6, 2005
    Assignee: Siemens VDO Automotive Inc.
    Inventors: David J. Chae, Bryan P. Bestvater, Brian DeBacker, Arden G. Stass, Jason Pettipiece
  • Patent number: 6932189
    Abstract: A device for noise structuring in a motor vehicle has a plurality of gas-carrying lines connected to an internal combustion engine. At least two of the gas-carrying lines are acoustically linked together by at least one connection.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: August 23, 2005
    Assignee: DaimlerChrysler Ag
    Inventors: Rolf Helber, Marcus Hofmann, Roudolf Starobinski