Internal Combustion Engine With Treatment Or Handling Of Exhaust Gas Patents (Class 60/272)
  • Patent number: 10273853
    Abstract: A mixer assembly for mixing an injected reductant with an exhaust gas output from a combustion engine includes an outer housing, a tubular inner housing, and an injector. The outer housing includes an outer wall defining an exhaust gas passageway that can receive exhaust gas. The inner housing is disposed within the outer housing and includes a longitudinal axis, a first end, a peripheral wall, and an outlet. The peripheral wall is at least partially formed by wire mesh. The outlet is disposed at a second end of the inner housing opposite the first end of the inner housing. The injector is fixed to the inner or outer housing to dose the reductant into the interior of the inner housing. The wire mesh includes openings to receive at least a portion of the exhaust gas. The outlet of the inner housing discharges a mixture of exhaust gas and reductant.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 30, 2019
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Michael Golin
  • Patent number: 10247081
    Abstract: An aftertreatment assembly for an internal combustion engine is disclosed. The assembly includes an aftertreatment component with an inlet, and a pipe connection fluidly connected to the inlet. The pipe connection includes an adjustable spherical pipe joint that joins two angularly offset pipe sections, and a slip pipe joint that joins two axially aligned pipe sections and that can adjust a combined length of the two axially aligned pipe sections. The assembly allows for compensating the positional and orientational displacements between an exhaust outlet and the inlet of the aftertreatment assembly.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 2, 2019
    Assignee: Perkins Engines Company Limited
    Inventor: Naseer A. Niaz
  • Patent number: 10226995
    Abstract: Provided is a working vehicle comprising: a fuel tank; a tank support member configured to receive and support the fuel tank from below; and an inverse U-shaped hood support member provided upright in a state of spanning left and right of the fuel tank, the hood support member including an elastic member that acts on an upper portion side of the fuel tank so as to hold the fuel tank at a predetermined position on the tank support member.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: March 12, 2019
    Assignee: Kubota Corporation
    Inventors: Megumi Sawai, Kazunobu Sugano, Shinsuke Kashiyama, Motoki Izukura, Koji Kajino, Tatsuya Ueda, Kenichi Aoyama
  • Patent number: 9896989
    Abstract: A deterioration diagnosis device for an oxidation catalyst includes: a multi-gas sensor disposed in an exhaust passage downstream of an oxidation catalyst, the multi-gas sensor including a NO2 sensor unit and a NOX sensor unit, the NO2 sensor unit directly detecting a NO2 concentration in exhaust gas after passing through the oxidation catalyst, and the NOX sensor unit directly detecting a NOX concentration in the exhaust gas; an NO concentration calculation unit configured to calculate an NO concentration in the exhaust gas after passing through the oxidation catalyst based on the NO2 concentration and the NOX concentration; and a deterioration judgment unit configured to determine a deterioration degree of the oxidation catalyst from an evaluation value based on the NO concentration calculated by the NO concentration calculation unit.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: February 20, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Shiro Kakimoto
  • Patent number: 9790829
    Abstract: A system for injecting fuel into an exhaust pipe and preventing fuel leakage. An exhaust pipe is connected to an engine via an exhaust adaptor and the fuel is injected directly into the exhaust pipe through a fuel injection valve provided in the exhaust adaptor. A lower end of the exhaust adaptor is provided with a lower flange part to which a front end flange part of the exhaust pipe is connected, and a tubular shielding part for preventing the fuel from falling onto flange surfaces and of the front end flange part and the lower flange part protrudes into the exhaust pipe.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 17, 2017
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Yukihiro Kawashima, Akiyoshi Kishi, Isao Shintani
  • Patent number: 9784127
    Abstract: An internal combustion engine has a cylinder head with at least one cylinder and a cooled turbine. Each cylinder has at least one outlet opening adjoined by an exhaust line for discharging exhaust gases from the cylinder. The exhaust line issues into an inlet region transitioning into an exhaust gas-conducting flow duct of the turbine. The turbine has at least one rotor mounted on a rotatable shaft in a turbine housing. The turbine has at least one coolant duct which is integrated in the housing and which is delimited and formed by at least one wall of the housing to form a cooling arrangement. The at least one wall of the turbine housing that delimits the at least one coolant duct is provided, at least in regions, with a thermal insulation.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: October 10, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Kai Sebastian Kuhlbach, Clemens Maria Verpoort, Jan Mehring, Carsten Weber, Stefan Quiring
  • Patent number: 9765676
    Abstract: An exhaust gas system of a motor vehicle which has an internal combustion engine with a plurality of cylinder groups, with a first exhaust gas section which is assigned to a first cylinder group of the internal combustion engine, and with a second exhaust gas section which is assigned to a second cylinder group of the internal combustion engine, each exhaust gas section comprising in each case one exhaust gas purification device, and a common silencer interacting with the first exhaust gas section and the second exhaust gas section, namely in such a way that, starting from the exhaust gas purification device of the first exhaust gas section and starting from the exhaust gas purification device of the second exhaust gas section, in each case, a first part exhaust gas section opens into an interior of the common silencer.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: September 19, 2017
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Bernd Müller, Markus Menzel
  • Patent number: 9677448
    Abstract: Methods and systems are provided for addressing engine cold-start emissions while an exhaust catalyst is activated. In one example, a method for improving exhaust emissions may include flowing ionized air into an engine exhaust, downstream of an exhaust catalyst, to oxidize exhaust emissions left untreated by the catalyst. The approach reduces the PM load of the exhaust as well as of a downstream particulate matter filter.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 13, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Douglas Raymond Martin, Kenneth James Miller, Michiel J. Van Nieuwstadt, John Eric Rollinger
  • Patent number: 9488091
    Abstract: An exhaust pipe structure is the exhaust pipe structure with a catalyst converter provided immediately close to an engine and includes a plurality of exhaust passages and a collecting portion. The collecting portion arranged between the first exhaust passage provided at an end side and a second exhaust passage includes a first guiding portion, a second guiding portion, and a rotating/guiding portion. The exhaust gas introduced from the first exhaust passage and the exhaust gas introduced from the second exhaust passage are guided obliquely downward by the first guiding portion and the second guiding portion, respectively, and are then rotated and guided by the rotating/guiding portion in respective directions opposite to each other to flow toward the catalyst converter.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 8, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Taku Kuramashi, Ryota Joya, Tomonori Nishida
  • Patent number: 9441520
    Abstract: A system and method includes an internal combustion engine capable of producing an exhaust stream and an aftertreatment system operationally coupled to the exhaust stream. The aftertreatment system includes an upstream selective reduction catalyst (SCR) component and a downstream SCR component that are positioned in substantially different thermal environments. The upstream and downstream SCR components are sized to fully treat the entire exhaust stream at a low temperature highest NOx conversion condition, and the downstream SCR component is sized to fully treat the entire exhaust stream at a high temperature highest NOx conversion condition.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 13, 2016
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Cary A. Henry, Michael J. Ruth
  • Patent number: 9376956
    Abstract: There is provided a turbocharging apparatus and vehicles using the same. The turbocharging apparatus comprises a wind collecting device, a first turbine and a second turbine. The wind collecting device comprises a first opening and a second opening and an air flow channel for connecting the two openings. A cross-sectional area of the air flow channel decreases as the air flow channel extends from the first opening towards the second opening. The first turbine comprises a first turbine housing, a first impeller rotatably located in the first turbine housing, a wind inlet communicated with the second opening, and a wind outlet. The second turbine comprises a second turbine housing, a second impeller rotatably located in the second turbine housing, an air suction inlet and an air outlet communicated with a throttle valve of the internal combustion engine. The second impeller can, driven by the first impeller, rotate along with the first impeller.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: June 28, 2016
    Assignee: NANNING JINLIN ENVIRONMENTAL PROTECTION TECHNOLOGY COMPANY
    Inventor: Jinlin Huang
  • Patent number: 9238993
    Abstract: An exhaust manifold and related method have a hybrid clamshell construction including an outer manifold half stamped from a first metal and having a first wall thickness, as well as an inner manifold half stamped from a second metal that is different from the first metal and has a second wall thickness which is different from the first wall thickness. Opposite side edges of the outer and inner manifold halves are rigidly interconnected to define a hollow manifold bottom. Port and outlet flanges are rigidly attached to inlet and outlet sides of the manifold body.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: January 19, 2016
    Assignee: Benteler Automotive Corporation
    Inventors: Frederick B. Hill, Jr., Sreedhar V. Chanda
  • Patent number: 9180406
    Abstract: An exhaust gas processing device includes a cylindrical metallic member and an insulating layer. The insulating layer has a thickness of about 20 ?m to about 400 ?m and is densely formed such that no through pores exist in a thickness direction of the insulating layer. The insulating layer is provided on an inner surface of the cylindrical metallic member.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 10, 2015
    Assignee: IBIDEN CO., LTD.
    Inventors: Fumiyuki Mutsuda, Yoshitaka Fujita
  • Patent number: 9157350
    Abstract: To provide a configuration that can discharge condensed water remaining in an exhaust gas passage in an engine in which a catalyst is placed in the exhaust gas passage. An engine system (100) is an engine system having an engine (10) in which a catalyst (6) is placed in an exhaust gas passage (31). The engine system (100) has a determination device (81a) for determining whether or not the catalyst (6) is immersed in the condensed water condensed from exhaust gas in a cold state and remaining in the exhaust gas passage (31) when the engine (10) is started, and an operation continuing device (81b) that allows operation of the engine (10) to continue when it is determined that the catalyst (6) is immersed in the condensed water so that a discharge operation time Te exceeds a required time.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: October 13, 2015
    Assignee: Yanmar Co., Ltd.
    Inventors: Kenichi Fukuda, Hiroki Nariyasu, Hirotoshi Kihara, Shojiro Koga
  • Patent number: 9086003
    Abstract: An exhaust gas cleaning device for a watercraft includes at least a particle filter and/or an SCR catalytic converter and a heat exchanger disposed upstream thereof. The heat exchanger is operated with seawater as a cooling medium. The heat exchanger has an exhaust gas inlet side and an exhaust gas outlet side and is suitable for reducing a volumetric flow rate of an exhaust gas between the exhaust gas inlet side and the exhaust gas outlet side by a certain value in a certain temperature range of the exhaust gas at the exhaust gas inlet side. A watercraft and a method for operating an exhaust gas cleaning device for a watercraft are also provided.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 21, 2015
    Assignee: EMITEC Gesellschaft fuer Emissionstechnolgie mbH
    Inventors: Bernd Danckert, Samuel Vogel, Sebastian Beyer
  • Patent number: 9038372
    Abstract: In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The carrier (50) of the exhaust purification catalyst (13) is formed from a crystallized composite oxide of aluminum and an alkali earth metal. On this carrier (50), precious metal catalysts (51, 52) are carried. The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: May 26, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Watanabe, Koutarou Hayashi, Kohei Yoshida, Yuki Bisaiji, Kazuhiro Umemoto
  • Patent number: 9028761
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of an upstream-side catalyst (14a) and a downstream-side catalyst (14b) arranged in series at an interval from each other. The upstream-side catalyst (14b) has a smaller cross-sectional area than the downstream-side catalyst (14b). The concentration of hydrocarbons which flow into the upstream-side catalyst (14a) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 seconds or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Umemoto, Kohei Yoshida, Mikio Inoue
  • Publication number: 20150121845
    Abstract: A method for producing an exhaust-gas aftertreatment device (2) inserts a monolith (8) in a housing (4), assembled from a circumferentially enclosed jacket (5) and two end funnels. The monolith (8) is axially inserted into the jacket (5) with a circumferentially enclosing support mat (9). The funnels (6) are connected to the jacket (5) via an axial connecting section (10) shaped complementary to the cross-section of the jacket (5), such that each connecting section (10) and an axial end section (25) of the support mat (9) axially overlap. The jacket (5), including the connecting sections (10) of the funnels (6) from a starting cross-section (13) to an end cross-section (15). This produces a predetermined radial preload in the support mat (9) in a support area (16) extending from the one connecting section (10) to the other connecting section (10) to retain the monolith (8) in the jacket (5).
    Type: Application
    Filed: May 13, 2013
    Publication date: May 7, 2015
    Inventors: Georg Wirth, Bernd Müller
  • Patent number: 9017614
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, an NOx adsorption part and an NOx purification part are arranged. The NOx purification part has the property of reducing NOx which is contained in exhaust gas if the concentration of hydrocarbons is made to vibrate by within a predetermined range of amplitude and within a predetermined range of period. When NOx is to be desorbed from the NOx adsorption part, the current NOx which is contained in the exhaust gas and the NOx which is desorbed from the NOx adsorption part are reduced by making the concentration of hydrocarbons of the NOx purification part vibrate by the amplitude and period which are set for the current engine operating state, at least of which (?T·k) has been corrected so that the amount of hydrocarbons becomes greater.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: April 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihisa Tsukamoto, Hiromasa Nishioka, Kohei Yoshida, Yuki Bisaiji, Junichi Matsuo, Takamitsu Asanuma
  • Publication number: 20150101314
    Abstract: The invention relates to a method and an arrangement for operating an internal combustion engine. In the method a first distribution of values for at least one variable is used, the variable describing a physical property of the internal combustion engine, and over a second time period values for this variable are recorded and classified, such that a second distribution is determined. The first distribution is then compared with the second distribution such that the behavior of the internal combustion engine can be adapted on the basis thereof.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Applicant: MTU Friedrichshafen GmbH
    Inventor: Tim Späder
  • Publication number: 20150075134
    Abstract: A mixing chamber for an exhaust system is disclosed. The mixing chamber includes a tapering cross sectional area perpendicular to a longitudinal axis of the mixing chamber. The mixing chamber includes a first end having a first cross sectional area and a second end having a second cross sectional area. The second cross sectional area is less than the first cross sectional area. The second end is configured to receive an injector. The mixing chamber includes a first exhaust conduit fluidly connected to the first end of the mixing chamber and defining a first exhaust gas flow path into the mixing chamber substantially perpendicular to the longitudinal axis. The mixing chamber also includes a second exhaust conduit fluidly connected to the first end of the mixing chamber and defining a second exhaust gas flow path out of the mixing chamber substantially in the direction of the longitudinal axis.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: Caterpillar Inc.
    Inventor: Praveen S. Chavannavar
  • Patent number: 8973350
    Abstract: In forced regeneration control of an exhaust gas purification device 12, data for control such as the number of meshes of a data map and the number of data maps for forced regeneration control is reduced and occurrence of torque shock is avoided by smoothly changing a fuel pressure. In the forced regeneration control of the exhaust gas purification device, when an operation state of an internal combustion engine is in a high-load operation state, normal injection control by stopping multi injection is carried out and according to a rotation speed and a load of the internal combustion engine, a region for control is divided into a multi-injection control region, a transition region, and a normal injection control region, and in the transition region, data for fuel pressure control obtained by interpolation of data for fuel pressure control on the multi-injection control region side and data for fuel pressure control on the normal injection control region side is used.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 10, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Takashi Haseyama, Shinji Gotou, Kenji Hagio, Tatsuo Mashiko, Yoshinobu Watanabe
  • Patent number: 8959891
    Abstract: A selective catalytic reduction (SCR) system that can detect whether or not a float is stuck even where a water level sensor that detects a liquid level in a stepwise manner is used, including: an urea injection quantity integrating unit that integrates an injected quantity of urea to calculate an urea injection quantity integrated value; an integrated value resetting unit that, if a detected value from detection means changes, resets the urea injection quantity integrated value; and an abnormality determination unit that, if the urea injection quantity integrated value exceeds a predetermined threshold value for determination, determines a level sensor as having an abnormality.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: February 24, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Takeshi Fukuoka, Hirotaka Takahashi, Tomoo Nishikawa
  • Publication number: 20150027800
    Abstract: An exhaust treatment unit treats an exhaust gas from an engine of a work vehicle. The exhaust treatment unit includes a first exhaust treatment device, a second exhaust treatment device, and a bracket. The first exhaust treatment device and the second exhaust treatment device are attached to the bracket. The bracket includes an edge part having an attachment portion configured to be attached to a vehicle body frame of the work vehicle, and a main body part having a convex shape downwardly bulged from the edge part. A bottom part of the second exhaust treatment device is positioned below the attachment portion. A work vehicle preferably includes the exhaust treatment unit, the engine and the vehicle body frame.
    Type: Application
    Filed: November 19, 2012
    Publication date: January 29, 2015
    Inventors: Manabu Himoto, Osamu Nishimura
  • Patent number: 8940259
    Abstract: A catalyzed soot filter for a diesel engine comprises a wall flow substrate having a substrate axial length, wherein surfaces of both the internal walls of a plurality of inlet and a plurality of outlet channels comprise a catalytic washcoat of at least one on-wall coating composition for oxidizing NO in exhaust gas to NO2, wherein the washcoat on the inlet channels extends for an axial inlet coating length from an open inlet end to a downstream inlet coating end, the washcoat on the outlet channels extends for an axial outlet coating length from an upstream outlet end to an open outlet end, the axial inlet coating length and the axial outlet coating length are both less than the substrate axial length and the outlet coating length is greater than the inlet coating length.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 27, 2015
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Gavin Michael Brown, Andrew Francis Chiffey, David Marvell
  • Patent number: 8931266
    Abstract: A work vehicle includes: a top having a first hole; a plate having a second hole and attached to the top with the second hole in alignment with the first hole; an exhaust pipe having an internal path and a flange projecting outward and abutting against and thus attached to the plate; and a tail pipe having a portion positioned in the first and second holes, and an end in the internal path of the exhaust pipe. The plate is disposed between the top and the flange and serves as a reference in attaching the flange to the top. Thus, a work vehicle that can facilitate disposing an exhaust pipe and a tail pipe concentrically and provide better workability in disposing the exhaust pipe and the tail pipe concentrically, and a method for manufacturing the work vehicle, can be provided.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: January 13, 2015
    Assignee: Komatsu Ltd.
    Inventor: Eiko Uchida
  • Publication number: 20140360159
    Abstract: An apparatus for an exhaust system, the apparatus comprising a precipitation cover adapted to be positioned at least partially downstream of a tailpipe, relative to a direction of an exhaust gas flow. The precipitation cover comprises a first cover end and a second cover end. The first cover end is configured as a precipitation outlet, and the second cover end is configured as an exhaust gas outlet and a precipitation inlet. When the first cover end and the tailpipe are coupled together, the first cover end and the tailpipe cooperate so as to form a precipitation exit opening.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 11, 2014
    Inventors: Dharani BABU, Santosh S. MANGADE, Daniel J. DEBOER
  • Patent number: 8875500
    Abstract: A mounting foot for mounting an after-treatment component to a frame is disclosed. The mounting foot may have a pad connectable to the frame. The mounting foot may also have a slider slidably connected to the pad. In addition, the mounting foot may have a mounting bracket. The mounting bracket may have a first end connectable to the after-treatment component and a second end connected to the slider.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: November 4, 2014
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Stephen M. Bednarz, Satyajit Gowda
  • Publication number: 20140305099
    Abstract: This disclosure relates generally to the use of gas clathrates. More particularly, this disclosure relates to systems, methods, and apparatuses related to the use of gas clathrates as a fuel source for automobiles. The gas clathrates may first be dissociated into at least one gas and the at least one gas delivered to the prime mover of a vehicle or the gas clathrates may be directly utilized by the prime mover as a fuel source.
    Type: Application
    Filed: April 12, 2013
    Publication date: October 16, 2014
    Inventors: Roderick A. Hyde, Lowell L. Wood, Jr.
  • Publication number: 20140284119
    Abstract: A hydraulic excavator is provided with a lower traveling unit, an upper structure, an engine, a hydraulic pump, an engine compartment, a pump compartment and a plurality of filter devices. The upper structure is rotatably disposed on the lower traveling unit. The pump compartment provided on the upper structure for housing the hydraulic pump. The pump compartment has a door that allows access to an interior of the pump compartment. The filter devices, which are disposed adjacent to each other, are disposed at positions that are mutually offset in a height direction of the hydraulic excavator.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 25, 2014
    Inventors: Mitsuhiro Koga, Naoki Tsujimoto
  • Publication number: 20140260188
    Abstract: Provided is a combined multi-purpose pollution-free vehicle and snowplow which comprises a hot water utilization and circulation pipe OSWL branching and circulating coolant heated by a vehicle engine from an induction connecting apparatus; a heater HTR secondarily heating air primarily heated by the hot water utilization and circulation pipe OSWL; a propeller OPE sending secondarily heated air to a distribution duct PEORUM; and a distribution duct PEORUM comprising a branching pipe so as to discharge secondarily heated air out of emission pipes PED disposed at the front, rear, left and right sides of the vehicle.
    Type: Application
    Filed: October 22, 2012
    Publication date: September 18, 2014
    Inventor: Sun Yul Seok
  • Patent number: 8820468
    Abstract: A dump truck includes a cab being located behind an engine compartment in which an engine is enclosed, a body being located behind the cab, and an exhaust aftertreatment device being adapted to purify an exhaust gas from the engine. The exhaust aftertreatment device includes a DPF device being adapted to capture a particulate matter in the exhaust gas and being located on a top of a fender provided alongside the cab, an SCR device being adapted to purify a nitrogen oxide in the exhaust gas and being located between the cab and the body, and a communication pipe through which the DPF device and the SCR device are in communication with each other.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: September 2, 2014
    Assignee: Komatsu Ltd.
    Inventor: Shigeo Sekiya
  • Publication number: 20140237991
    Abstract: An exhaust apparatus for a multi-cylinder engine which is capable of suppressing deterioration in ejector effect with a simple configuration comprises: a plurality of independent exhaust ducts each having an upstream end connected to an exhaust port of one cylinder or exhaust ports of two or more cylinders which are non-successive in terms of exhaust order; and a merged portion configured to allow exhaust gas passing through each of the independent exhaust ducts to flow thereinto and formed to be gradually reduced in diameter toward a downstream side in an exhaust gas flow direction. The independent exhaust ducts are connected to an upstream end of the merged portion in such a manner that downstream ends thereof are bundled together. An O2 sensor is provided in the merged portion or a portion of an exhaust duct line downstream of the merged portion, to partially block an exhaust gas flow passage.
    Type: Application
    Filed: November 6, 2012
    Publication date: August 28, 2014
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Mitsuo Nakamura, Mikihito Fujii, Nobuhiro Soumiyou, Shunki Okazaki
  • Publication number: 20140216006
    Abstract: Fuel efficiency in a combustion engine is increased by treating the fuel in a reaction chamber prior to delivering the fuel into the combustion chamber of the engine. The method includes the step of entraining a stream of exhaust gas to travel upstream through the reactor chamber in a first flow pattern. The method also includes the step of entraining a stream of fuel to travel downstream through the reactor chamber in a second flow pattern, where at least one of the first and second flow patterns comprises a structured turbulent flow.
    Type: Application
    Filed: April 25, 2013
    Publication date: August 7, 2014
    Applicant: Thrival Tech, LLC
    Inventors: Garrett Hill, Scott Lazar, Dustin Stonehouse, Justin Tombe
  • Patent number: 8790604
    Abstract: Disclosed embodiments include methods of removing carbon dioxide from combustion gas from an engine of a vehicle, systems for removing carbon dioxide from combustion gas from an engine of a vehicle, vehicles, methods of managing carbon dioxide emissions from an engine of a vehicle, and computer software program products for managing carbon dioxide emissions from an engine of a vehicle.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: July 29, 2014
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Thomas A. Weaver, Lowell L. Wood, Jr.
  • Patent number: 8774993
    Abstract: A hybrid vehicle is equipped with an engine and a motor generator (MG2) serving as a power source for driving the vehicle. A catalytic converter is provided in an exhaust pipe of the engine. An HV-ECU estimates a possible EV-running distance based on an SOC of a power storage device for comparison with a traveling distance (L) to a destination set by a navigation device. When the possible EV-running distance is longer than the traveling distance (L), the HV-ECU outputs a control signal (CTL2) instructing prohibition of warm-up of the catalytic converter, to an EG-ECU.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: July 8, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Harada, Daigo Ando
  • Publication number: 20140174057
    Abstract: An aftertreatment module for the treatment of exhaust gasses from a power system includes a first aftertreatment brick and a second aftertreatment brick. The first and second aftertreatment bricks can be flow-through type catalysts for catalyzing byproducts in the exhaust gasses. The aftertreatment module can include a first channel directing the incoming exhaust gasses in a first direction through the first aftertreatment brick and a second channel directing the exhaust gasses through the second aftertreatment brick. The first and second channel can be in a side-by-side arrangement. To communicate the exhaust gasses between the first and second channels, a traverse channel can redirect the gas flow within the aftertreatment module.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicant: CATERPILLAR INC.
    Inventors: Jacob K. Ludeman, Brian J. DeCaires
  • Patent number: 8745973
    Abstract: An engine control system includes a dosing control module and an offset determination module. The dosing control module actuates an injector to inject a first amount of reducing agent into exhaust gas produced by an engine during a period when a temperature of the exhaust gas is greater than a predetermined temperature threshold. The offset determination module determines an efficiency of a selective catalytic reduction (SCR) material based on measured amounts of nitrogen oxide (NOx) during the period and expected NOx amounts, wherein the measured amounts of NOx are measured at locations upstream and downstream from the SCR material, and wherein the expected NOx amounts are based on the temperature of the exhaust gas and the first amount of reducing agent.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: June 10, 2014
    Inventors: Jason Daniel Mullins, Rebecca J Darr, Kyle E. Crawford, Paul Jasinkiewicz
  • Patent number: 8751185
    Abstract: A detection device for an internal combustion engine is preferably applied to the internal combustion engine which includes a temperature varying member, which is provided in an exhaust system, and whose temperature varies due to gas flow in the exhaust system. A temperature correlation value detection unit detects a correlation value which correlates with the temperature of the temperature varying member. The term correlation value herein includes impedance of the temperature varying member, a signal output value such as current and voltage output sent from the temperature varying member, and/or the temperature varying member's own temperature. A variation calculating unit calculates a variation of the correlation value, in a time period when the gas flow arises, detected by the temperature correlation value detection unit.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: June 10, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Naofumi Magarida
  • Patent number: 8745977
    Abstract: A mass damper method includes providing an electroactive polymer (7) and using the electroactive polymer (7) to manufacture a mass damper (6). The mass damper (6) for damping a vibrating system of a motor vehicle includes at least one of a damping body (10) forming a countervibrating mass with a damping spring (11) and a springy damping body (10) forming the countervibrating mass. The damping body (10) is indirectly or directly coupled with the vibrating system. The springy damping body (10) or the damping spring (11) includes an electroactive polymer (7). A motor vehicle exhaust system of an internal combustion engine is provided including an exhaust gas line (3) with an exhaust pipe (4), an exhaust gas-treating device (5) integrated in the exhaust pipe and the mass damper (6) coupled with the exhaust gas line.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 10, 2014
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Arnulf Spieth
  • Patent number: 8731804
    Abstract: A device, which detects information about a hydrogen concentration level, includes an air-fuel ratio sensor, an air-fuel ratio controller, and a detecting portion. The detecting portion calculates either a ratio of response periods or a difference between the response periods to detect the hydrogen concentration level. One of the response periods is a period from the time the air-fuel ratio controller switches the target air-fuel ratio from rich to lean to the time the air-fuel ratio sensor detects this. The other of the response periods is a period from the time the air-fuel ratio controller switches the target air-fuel ratio from lean to rich to the time the air-fuel ratio sensor detects this. This allows the decisions of a variation between cylinders and an exhaust purifying catalyst degradation.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: May 20, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keiichiro Aoki
  • Patent number: 8701387
    Abstract: An engaging groove (47) with which a gasket (42) is engaged is provided in each of a front side projecting portion (44) and a rear side projecting portion (46) formed in a filter accommodating cylinder (37) to be positioned on an outer peripheral surface (44A, 46A) of each projecting portion (44, 46). Therefore, when the gasket (42) latches on each of the projecting portion (44; 46) to be fitted thereon from an outside, the gasket (42) can be engaged with the engaging groove (47) provided in each of the projecting portions (44, 46). In consequence, at the time of mounting and removing the filter accommodating cylinder (37), the falling-off of the gasket (42) can be prevented, and, for example, an inspection operation, a cleaning operation and the like of an accommodated particulate matter removing filter (41) can be easily performed.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: April 22, 2014
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Tomoyuki Saito, Eri Saijo, Toshihiro Abe, Hiroyuki Kamata
  • Patent number: 8667783
    Abstract: Method for controlling the operation of a pump driven by an electric motor and controlled by a controller, according to which an electronic control module (ECM) sends, to the controller, a PWM (Pulse Width Modulation) control signal having a duty cycle that varies as a function of the desired operating conditions for the pump and according to which the controller acts on the electric motor to apply said operating conditions to the pump.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: March 11, 2014
    Assignee: Inergy Automotive Systems Research (Societe Anonyme)
    Inventors: Volodia Naydenov, Joel Op De Beeck, Vincent Potier
  • Patent number: 8662883
    Abstract: Apparatus is described for combusting exhaust gases output from a plurality of process chambers. The apparatus comprises a plurality of exhaust gas combustion nozzles (22) connected to a combustion chamber (24). Each nozzle receives a respective exhaust gas (26), and comprises means for receiving a fuel (40) and an oxidant (30) for use in forming a combustion flame within the chamber. A controller receives data indicative of the chemistry of the exhaust gas supplied to each nozzle, and adjusts the relative amounts of fuel and oxidant supplied to each nozzle in response to the received data. This can enable the nature of each combustion flame to be selectively modified according to the nature of the exhaust gases to be destroyed by that flame, thereby enhancing the destruction rate efficiency of the exhaust gas and optimising fuel consumption.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: March 4, 2014
    Assignee: Edwards Limited
    Inventors: Darren Mennie, Nicholas Benjamin Jones, Colin Michael Harrison
  • Publication number: 20140053539
    Abstract: An exhaust treatment system including an exhaust passage in communication with an engine that produces an exhaust. An exhaust canister is coupled to the exhaust passage, and the exhaust canister supports a plurality of exhaust treatment components therein for treating the exhaust, wherein exhaust canister is removable from the exhaust passage, and the exhaust treatment components are removable from the exhaust canister.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Inventors: Michael Golin, Dan Owen, Tanay Mutha, Keith Olivier
  • Patent number: 8651210
    Abstract: Engine exhaust is sent to a reformer, which produces hydrogen from fuel remaining in the exhaust. The hydrogen may be stored in a hydrogen tank, and may be used by a fuel cell to produce electricity to recharge a vehicle battery and/or to supply propulsion current to an electric propulsion system.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: February 18, 2014
    Inventor: Robert Hotto
  • Patent number: 8652410
    Abstract: A method for controlling a selective catalytic reduction system (SCR) exploiting a set of predetermined trigger events and a set point for the NOx concentration, and an arrangement for SCR. At the occurrence of a trigger event, NOx concentration measurement downstream from the catalyst elements is started and the difference between the measured concentration and the set point is determined. If the difference is negative, the dosing of the reducing agent is decreased. If the difference is positive, the dosing of the reducing agent is increased and after system stabilization a new measurement is started. If the measured value is below the previous measured value, the same dosing is maintained. If the measured value is above the previous measured value, the dosing is decreased with an amount greater than the increase after the previous measurement.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Wartsila Finland Oy
    Inventors: Daniel Nordberg, Raine Peltokoski
  • Patent number: 8647596
    Abstract: Disclosed embodiments include methods of removing carbon dioxide from combustion gas from an engine of a vehicle, systems for removing carbon dioxide from combustion gas from an engine of a vehicle, vehicles, methods of managing carbon dioxide emissions from an engine of a vehicle, and computer software program products for managing carbon dioxide emissions from an engine of a vehicle.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 11, 2014
    Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Thomas A. Weaver, Lowell L. Wood, Jr.
  • Patent number: 8635861
    Abstract: An exhaust aftertreatment system including an exhaust flow area, a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area and a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area. The first bank may be arranged in parallel with the second bank and inlet of the first bank is configured to provide greater flow resistance to the exhaust than the inlet of the second bank.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Jinhui Sun, Yung T. Bui, Michael P. Boahene, Shashank Mupparapu
  • Publication number: 20140007558
    Abstract: The invention relates to an injection nozzle (1) for injection of a reducing agent into an exhaust gas system (2) of an internal combustion engine for selective catalytic reduction, especially for atomization by means of compressed air or propellant gas, the nozzle (1) having at least one outlet opening, the nozzle (1) upstream of the outlet opening having a variable volume (8) which after completion of injection of the liquid is increased in order to draw gas from the vicinity (2) through the outlet opening into the nozzle (1).
    Type: Application
    Filed: January 27, 2012
    Publication date: January 9, 2014
    Applicant: ALBONAIR GmbH
    Inventors: Werner Overhoff, Sascha Dolenec, Sebastian Muhlenbrock