Having Auxiliary Device Mechanically Driven By Exhaust Gas Patents (Class 60/280)
  • Patent number: 9702296
    Abstract: An engine includes: a turbocharger including a turbine and a compressor; an EGR passage connecting an exhaust passage on an upstream side of the turbine and an air intake passage on a downstream side of the compressor; an EGR valve provided in the EGR passage; a bypass passage that bypasses the turbine; and a waste gate valve provided in the bypass passage. In the engine, when a boost pressure is increased to a limit pressure, a first boost pressure control is executed, in which the EGR valve is opened and the waste gate valve is closed. After the first boost pressure control starts, when an engine speed is increased to a prescribed value, a second boost pressure control is executed, in which the waste gate valve is opened in addition to the EGR valve.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: July 11, 2017
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Naoyuki Yamagata, Shuhei Tsujita
  • Patent number: 9617898
    Abstract: An internal combustion engine, wherein a hydrocarbon supply valve (15) and an exhaust gas purification catalyst (13) are disposed inside an engine exhaust gas passage. When an increase in the temperature of the exhaust gas purification catalyst (13) caused by hydrocarbons supplied from the hydrocarbon supply valve (15) is smaller than a predetermined increase amount, and a decrease in the pressure of fuel supplied to the hydrocarbon supply valve (15) when the hydrocarbons have been injected from the hydrocarbon supply valve (15) is larger than a predetermined decrease amount, the present invention determines that a blockage is occurring in a hydrocarbon injection channel (69) when the hydrocarbons have been injected from the hydrocarbon supply valve (15).
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 11, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yuki Bisaiji
  • Patent number: 9593614
    Abstract: An exhaust gas purification system includes a previous-stage oxidation catalyst device, an ammonia-based solution feeder, a Diesel Particulate Filter (DPF) device, a turbine of a turbocharger, and a NOx selective reduction catalyst device in the exhaust system of an internal combustion engine in this order from an exhaust port side. The NH3 production rate is improved, thereby improving the NOx removal rate; the temperature of the DPF device is kept high to increase the time and frequency of continuous regeneration, thus decreasing the frequency of forced regeneration of the DPF device and the amount of discharge of CO2 produced during the forced regeneration; and also corrosion of the turbine of the turbocharger by SOx is suppressed.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 14, 2017
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kazuo Osumi
  • Patent number: 9587591
    Abstract: An exhaust system for an internal combustion engine is disclosed. The exhaust system comprises a particulate filter, one or more NOx reduction catalysts, and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter and the one or more NOx reduction catalysts to an intake of the engine. The EGR circuit comprises a N2O-producing catalyst.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 7, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guy Richard Chandler, Alexander Nicholas Michael Green, Paul Richard Phillips
  • Patent number: 9587547
    Abstract: An engine system for controlling an exhaust gas flow includes an intake line arranged to draw in outdoor air, an engine combusting the outdoor air supplied through the intake line and fuel in a combustion chamber of the engine to generate torque, an exhaust line for exhausting exhaust gas from the combustion in the combustion chamber of the engine, a turbocharger having a turbine operated by the exhaust gas passing through the exhaust line and a compressor for compressing the outdoor air in the intake line, a catalyst unit arranged on a downstream side of the turbocharger for reducing harmful components of the exhaust gas, a bypass line branched from the exhaust line on the downstream side of the turbocharger and joined to the exhaust line on a downstream side of the catalyst unit, and a bypass valve arranged on the bypass line for selectively opening/closing the bypass line.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: March 7, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Kihoon Nam
  • Patent number: 9551262
    Abstract: Methods and systems are provided for determining degradation of a particulate filter in an exhaust conduit. In one example, a method may include diverting exhaust gas to a secondary soot sensor assembly downstream of a first filter, comprising a second filter and determining degradation based on time intervals between subsequent filter regenerations of the second filter in the secondary soot sensor assembly.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: January 24, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang
  • Patent number: 9494076
    Abstract: An engine system may include a first intake line configured to supply external air to an intake manifold mounted in a cylinder block of an engine, an intake bypass valve disposed on the first intake line, a second intake line configured to bypass the intake bypass valve, a first exhaust line, through which exhaust gas discharged from an exhaust manifold mounted in the cylinder block flows, an exhaust bypass valve disposed on the first exhaust line, a second exhaust line configured to bypass the exhaust bypass valve, a turbo charger operated by exhaust gas passing through the second exhaust line, and configured to pump intake air flowing in the second intake line, a controller configured to control the intake bypass valve and the exhaust bypass valve, and a turbine housing configured to surround a turbine of the turbo charger. The turbine housing may be made of a material the same as that of a cylinder head of the engine.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 15, 2016
    Assignee: Hyundai Motor Company
    Inventors: Jong Il Park, Joowon Lee, Nahm Roh Joo, Yoon Joo Kim, Dong Hee Han, Il Joong Hwang, Hyun Jun Lim
  • Patent number: 9488090
    Abstract: An engine block arrangement includes an engine block and an exhaust gas system. The exhaust gas system, viewed in the flow direction of an exhaust gas flow, includes an exhaust gas turbocharger, an oxidation catalytic converter, a feed device for a urea-water solution, a particle filter, and an SCR catalytic converter arranged one behind the other. The exhaust gas turbocharger, the oxidation catalytic converter, the feed device for the urea-water solution, the particle filter, and the SCR catalytic converter are situated together on the engine block along one side thereof, the side being oriented essentially perpendicularly with respect to an output side of the engine block.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: November 8, 2016
    Assignee: Daimler AG
    Inventors: Christoph Spengel, Antonio Pepe, Peter Raitschev, Jutta Elisabeth Mueller, Clemens Schubert
  • Patent number: 9441524
    Abstract: Various systems and methods are described for an engine system with an exhaust gas treatment system including a particulate filter. In one example method, accumulated hydrocarbons are removed from the exhaust gas treatment system by increasing an exhaust gas temperature to a first temperature responsive to a particulate filter regeneration request during extended cold idle operation. After a predetermined duration, the exhaust gas temperature is increased to a second, higher temperature to regenerate the particulate filter.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: September 13, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Shikui Kevin Chen, Kirk Andrew Parrish, Joseph Goode, Jeffrey Malcolm Travis, Norman Hiam Opolsky
  • Patent number: 9394820
    Abstract: A previous-stage oxidation catalyst device, a Diesel Particulate Filter (DPF) device, a turbine of a turbocharger, a previous-stage NOx selective reduction catalyst device, and a subsequent-stage NOx selective reduction catalyst device in an exhaust system of an internal combustion engine in this order from an exhaust port side. An ammonia-based solution feeder is on an inlet side or outlet side of the DPF device. The previous-stage NOx selective reduction catalyst device is a rare earth composite oxide catalyst, and the subsequent-stage NOx selective reduction catalyst device is a zeolite catalyst. The NOx removal rate is improved in wide ranges from low to high temperatures and to high flow rates, and the temperature of the DPF device is kept high to increase the time and frequency of continuous regeneration, thereby reducing the frequency of forced regeneration and an amount of discharge of CO2 during the forced regeneration.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 19, 2016
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kazuo Osumi
  • Patent number: 9322312
    Abstract: In one exemplary embodiment of the invention, a method of regenerating an exhaust gas particulate filter in a vehicle having an internal combustion engine is provided. The method includes determining a soot accumulation in the particulate filter, determining a soot humidity and temperature correction factor, and adjusting, using the soot humidity and temperature correction factor, the soot accumulation to determine a corrected soot accumulation in the particulate filter. The method further includes performing a regeneration of the particulate filter when at least one of the following occurs: the corrected soot accumulation reaches a predetermined threshold, and the corrected soot accumulation indicates a contorted soot mass to flow resistance relationship.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: April 26, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John A. Catalogna, Rebecca J. Darr, Rahul Mital
  • Patent number: 9302579
    Abstract: A flush mounted tractor exhaust outlet includes a plastic tractor hood panel sandwiched between an outlet ring and a support plate. Spacers are provided between the outlet ring and the support plate. An air passage is provided between the support plate and an outlet plate that does not contact the plastic tractor hood panel.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: April 5, 2016
    Assignee: DEERE & COMPANY
    Inventors: Nicholas M Toomey, Prakash Sahoo
  • Patent number: 9254838
    Abstract: A hybrid diesel-electric powertrain includes an electric motor in electrical communication with a traction battery, a diesel engine in power-flow communication with the electric motor and with an automatic transmission, and a controller. The diesel engine and electric motor are configured to provide a combined torque to the automatic transmission. The powertrain further includes an exhaust aftertreatment device in fluid communication with the diesel engine. The controller is configured to: receive a regeneration request from the exhaust aftertreatment device; determine if a state-of-charge of the fraction battery is within a predetermined range of a target value; initiate a regeneration event if the state-of-charge of the traction battery is within the predetermined range of the target value; receive an immediate torque request from the automatic transmission; and provide a torque command to the electric motor in response to the immediate torque request.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 9, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Luca Scavone, Anthony H. Heap
  • Patent number: 9228479
    Abstract: In a marine conversion of a “Duramax” V8 diesel engine, each bank of cylinders has a jacketed exhaust manifold including a solid elongated casting including coolant galleries and a central exhaust duct. Recirculating coolant cools each cylinder then enters the exhaust manifold through separate apertures aligned with openings made by removal of a frost plug. Each manifold coolant aperture has a controlled diameter, ensuring most of the coolant passes along the length of the engine then along the manifold yet enough coolant cools each cylinder. The coolant then traverses and cools a manifold extension and a turbocharger.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: January 5, 2016
    Assignee: MARINE PROPULSION TECHNOLOGIES LIMITED
    Inventors: Murray Noel Bunn, Clinton Bert Keith Wishart
  • Patent number: 9217349
    Abstract: An internal combustion engine includes an SCR system disposed on an exhaust passage and a particulate matter sensor disposed downstream of the SCR system, the particulate matter sensor for producing an output that corresponds to an amount of particulate matter deposited on an element section. A control apparatus for the internal combustion engine includes: means for detecting a condition of the element section being deposited with a urea-related substance; and means for controlling to bring a temperature of the element section to a first temperature range when the condition of being deposited with the urea-related substance is detected. The first temperature range is higher than a temperature at which the urea-related substance vaporizes and lower than a temperature at which the particulate matter burns. This prevents the urea-related substance from being deposited on an electrode of the particulate matter sensor and limits variations in an output of the particulate matter sensor.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 22, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuhiro Hashida, Hiroki Nishijima
  • Patent number: 9180774
    Abstract: In a work vehicle, a second processing device, disposed over a hydraulic pump, is configured to process the hydraulic gas from an engine. A first processing device is disposed closer to the engine than the second processing device is. Further, the first processing device is positioned higher the second processing device. The first processing device is partially overlapped with the second processing device in a top plan view.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 10, 2015
    Assignee: KOMATSU LTD.
    Inventors: Hiroyuki Mizuno, Tomomi Ueda
  • Patent number: 9163555
    Abstract: Embodiments for a turbine-generator position in a compressor bypass flow path are presented. In one example, a method for an engine having a compressor comprises generating energy via a turbine-generator positioned in a bypass flow path of the compressor. In this way, the energy of the recirculated intake air may be recovered by the turbine-generator.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 20, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Gregory Patrick McConville, Karen Elizabeth Maceroni
  • Patent number: 9157363
    Abstract: An engine receiving boost from a supercharger and/or a turbocharger compressor is provided, along with methods for its operation. The engine may include inline cylinders arranged on an engine block and an integrated exhaust manifold (IEM), where exhaust flow from inner cylinders is kept separate from exhaust flow from outer cylinders within the IEM and where exhaust flow from the inner cylinders but not the outer cylinders flows through a turbine of the turbocharger. The supercharger and turbocharger compressor may be arranged in parallel upstream of an intake manifold of the engine, and throttles upstream of each of the supercharger and compressor may be controlled to direct intake air through one or both of the supercharger and the compressor based on engine operating conditions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Andrew Wade, John Christopher Riegger
  • Patent number: 9140157
    Abstract: An exhaust gas purification device is arranged in an exhaust gas route of a common rail type engine. At least one of an intake air throttle device and an exhaust gas throttle device are arranged in intake and exhaust systems of the engine. In the case that a clogged state of the exhaust gas purification device becomes equal to or more than a prescribed level, an auxiliary renewing mode which raises the temperature of an exhaust gas from the engine by actuating at least one of the intake air throttle device and the exhaust gas throttle device is executed, and in the case that the clogged state of the exhaust gas purification device is not improved even by executing the auxiliary renewing mode, a forced renewing mode which supplies a fuel into the exhaust gas purification device by a post injection is executed.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: September 22, 2015
    Assignee: Yanmar Co., Ltd.
    Inventors: Yasuo Noma, Taichi Togashi, Tomohiro Fukuda, Atsushi Ohta, Katsunari Jounouchi
  • Patent number: 9103273
    Abstract: Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: August 11, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Julia Helen Buckland, Amey Y. Karnik, Jeffrey Allen Doering, Brad Alan Boyer
  • Patent number: 9051867
    Abstract: A method of determining a malfunction in a hydrocarbon injection system for an internal combustion engine having an exhaust system with a diesel particulate filter and a diesel oxidation catalyst, is provided. An efficiency of a diesel oxidation catalyst to convert hydrocarbons injected for regeneration of a diesel particulate filter into heat is estimated based upon an input temperature of the diesel oxidation catalyst, an output temperature of the diesel oxidation catalyst, and an output temperature of a diesel particulate filter. The estimated efficiency is compared to a predetermined stored efficiency value. An indication of a malfunction is generated when the comparison of the estimated efficiency to the predetermined stored efficiency exceeds a threshold amount.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: June 9, 2015
    Assignee: International Engine Intellectual Property Company, LLC
    Inventor: Massimo Fontana
  • Patent number: 9003781
    Abstract: Embodiments of a pre-turbo catalyst positioned within a turbine in a turbocharger of an engine are disclosed. In one example approach, a turbocharger for an engine comprises a turbine and a catalyst substrate mounted directly within the turbine.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Patrick Murphy
  • Patent number: 9003792
    Abstract: In an exemplary embodiment, an internal combustion engine includes an oxidation catalyst configured to receive an exhaust gas flow from the internal combustion engine, a urea injector positioned downstream of the oxidation catalyst to inject a urea flow into the exhaust gas flow and a mixer positioned downstream of the urea injector to mix the exhaust gas flow and the urea flow to form a mixed exhaust gas and urea flow. The engine also includes a particulate filter and catalytic reduction assembly positioned downstream of the mixer to receive the mixed exhaust and urea flow from the mixer to form a treated exhaust gas flow and an exhaust gas recirculation system coupled to the particulate filter to receive a portion of the treated exhaust gas flow and recirculate the portion of the exhaust gas flow to be mixed with a fresh air flow for the internal combustion engine.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: April 14, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Manuel Angel Gonzalez Delgado, Julian C. Tan, Joshua Clifford Bedford, Yong Miao, Naser I. Hineiti, Steven M. Yocum
  • Patent number: 8997456
    Abstract: An electronically controlled compression ignition engine includes an electronic engine controller in control communication with fuel injectors, a high pressure exhaust recirculation system and a variable geometry turbocharger. The controller is configured to execute a low load rapid warm up algorithm that generates control signals to reduce turbine efficiency, set an air fuel ratio in a predetermined range, set the exhaust gas recirculation in a predetermine range and supply fuel in a split injection in each engine cycle that includes a main injection initiated before top dead center and a post injection initiated after top dead center. These settings allow for rapid warm up to the aftertreatment inlet in excess of 300° C.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 7, 2015
    Assignee: Caterpillar Inc.
    Inventors: Matthew Wolk, Gurudutt Nayak
  • Patent number: 8997462
    Abstract: An engine system comprising: an exhaust gas system for removing exhaust gas from the engine; a turbocharger comprising a compressor for inducing air towards the engine and a turbine provided along the exhaust gas system and driven by removed exhaust gas for powering the compressor; a hydrogen delivery apparatus adapted to deliver hydrogen to the exhaust gas system such that the hydrogen can combust and expand, thereby increasing the speed of the turbine. The increased speed of the turbine operation decreases turbo lag and increases engine responsiveness.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Jonathan Edward Caine
  • Patent number: 8991149
    Abstract: A power generation system capable of eliminating NOxcomponents in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a turbine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor feeding gas to the combustor and turbine; and an electrical generator.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: March 31, 2015
    Assignee: General Electric Company
    Inventors: Ashok Kumar Anand, James Anthony West, Gilbert Otto Kraemer, Hasan Ui Karim, Sam David Draper, Jonathan Dwight Berry
  • Patent number: 8984864
    Abstract: An exhaust system for treating exhaust gas from an internal combustion engine is disclosed. The system comprises a three-way catalyst (TWC), a fuel reformer catalyst located downstream of the TWC, and a fuel supply means located upstream of the fuel reformer catalyst. The exhaust gas is split into two portions. The first portion of the exhaust gas bypasses the TWC and contacts the fuel reformer catalyst in the presence of fuel added from the fuel supply means, and is then recycled back to the engine intake. The second portion of the exhaust gas is contacted with the TWC and is then utilized to heat the fuel reformer catalyst before being expelled to atmosphere. The exhaust system allows for maximum heat exchange from the exhaust gas.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 24, 2015
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Kirsty Ellen Cockle, Paul James Millington, Edward James Richard Moss, John Frederick Pignon
  • Patent number: 8978359
    Abstract: A turbocharged internal combustion engine disclosed that may comprise an engine block with a first end side opposing a second end side and a two-stage turbocharged system. The two-stage turbocharged system may comprise a low-pressure turbocharger with a first turbine and a first compressor and a high-pressure turbocharger with a second turbine and a second compressor. A turbine connection may fluidly connect the first turbine and the second turbine and a compressor connection fluidly connects the first compressor and the second compressor. The low-pressure turbocharger is mounted at the first end side of the engine block and the high-pressure turbocharger is mounted at a second end side of the engine block.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 17, 2015
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventor: Udo Schlemmer-Kelling
  • Patent number: 8943822
    Abstract: A system is disclosed for use with an engine. The system may have an intake manifold configured to direct air into combustion chambers of the engine. The system may also have an auxiliary device and an exhaust manifold configured to direct exhaust from the combustion chambers of the engine through the auxiliary device to the atmosphere. The system may additionally have a conduit associated with fewer than all of the combustion chambers of the engine and extending to the auxiliary device in parallel with the exhaust manifold, and an auxiliary valve disposed within the conduit and selectively movable between a flow-passing position and a flow-blocking position.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 3, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventor: Teoman Uzkan
  • Patent number: 8931272
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Patent number: 8925302
    Abstract: A system and method for operating an engine turbocharger is described. In one example, the turbocharger is rotated in different directions in response to operating conditions. The system and method may reduce engine emissions.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: January 6, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: William Charles Ruona, Kevin Durand Byrd, Keith Michael Plagens
  • Patent number: 8919097
    Abstract: Methods and systems are provided for selecting a group of cylinders for selective deactivation, in a variable displacement engine system, based at least on a regeneration state of an exhaust catalyst. The position of one or more valves and throttles may be adjusted based on the selective deactivation to reduce back-flow through the disabled cylinders while also maintaining conditions of a downstream exhaust catalyst. Pre-ignition and knock detection windows and thresholds may also be adjusted based on the deactivation to improve the efficiency of knock and pre-ignition detection.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 30, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: James Michael Kerns, Michael James Uhrich, Stephen B. Smith, Adam Nathan Banker
  • Patent number: 8919107
    Abstract: A control device of a diesel engine with a turbocharger is provided. The device includes an engine body having a cylinder, a fuel injection valve, a turbine of the turbocharger, a bypass passage for bypassing the turbine, a bypass valve for opening and closing the bypass passage, an oxidation catalyst for purifying HC, and a DPF for capturing soot. The device includes a fuel cutting module for stopping, when the diesel engine is in a deceleration state, a main injection of the fuel performed on compression stroke, a DPF regenerating module for performing, when a predetermined DPF regeneration condition is satisfied, a post injection on expansion stroke to supply HC to the oxidation catalyst and regenerate the DPF by heat generated from an oxidation reaction of HC, and a bypass valve control module for controlling the bypass valve.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 30, 2014
    Assignee: Mazda Motor Corporation
    Inventor: Hiroyuki Nishimura
  • Patent number: 8919109
    Abstract: A hydraulic drive system executing load sensing control is capable of efficiently combusting and removing filter deposits inside an exhaust gas purification device by pump output power increasing control when there is no actuator operation, eliminating interference between the actuator operation and the pump output power increasing control. A first solenoid selector valve selects between tank pressure and delivery pressure of a pilot pump. A second solenoid selector valve is arranged in a line leading the output pressure of a differential pressure reducing valve to an LS control valve for selecting between enabling and disabling of the load sensing control. When the exhaust gas purification device needs regeneration, a controller executes switching to make the first solenoid selector valve output the delivery pressure of the pilot pump as dummy load pressure and to make the second solenoid selector valve disable the load sensing control.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 30, 2014
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kiwamu Takahashi, Yasutaka Tsuruga, Hajime Yoshida, Yoshifumi Takebayashi, Kazushige Mori
  • Patent number: 8915072
    Abstract: An exhaust port structure of a cylinder head includes a connection pipe communicating with a plurality of exhaust ports of the cylinder head and an exhaust hole connected to the connection pipe and performing a function of an exhaust manifold, wherein the connection pipe has an EGR line integrally formed and connected thereto and each of the exhaust ports is formed with the same shape or a symmetrical shape, and the present invention can reduce the weight of the cylinder head and the manufacturing cost and improve the EGR rate and T/C efficiency.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: December 23, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seung Woo Ko, Hyunwook Ryu
  • Patent number: 8910467
    Abstract: In controlling a hybrid vehicle, an internal combustion engine and an electric motor are controlled such that, when a power request is received while traveling with an operation of the internal combustion engine stopped and a requested power required for traveling is higher than a predetermined power, the operation of the internal combustion engine is started with an intake air volume based on the requested power and the hybrid vehicle travels with the requested power. When the power request is received for the first time after ignition-on, the start control for controlling the internal combustion engine is performed such that the operation of the internal combustion engine is started with an intake air volume lower than that based on the requested power. The hybrid vehicle includes a controller that performs the above control, an internal combustion engine, an electric motor, a battery, and a purification device.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: December 16, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Keisuke Morisaki
  • Patent number: 8893493
    Abstract: An exhaust system for a turbocharged internal combustion engine comprises a first exhaust conduit extending between a first engine cylinder and a turbocharger inlet and is configured to conduct exhaust gas therebetween. A second exhaust conduit extends between a second engine cylinder and an in inlet for an exhaust gas recirculation system and is configured to conduct exhaust therebetween. An exhaust gas bypass extends between, and is in fluid communication with, the first and second exhaust conduits and is configured to divert exhaust gas flowing through the second exhaust gas conduit to the first exhaust gas conduit, and the turbocharger inlet, under conditions of varying exhaust gas recirculation demand of the internal combustion engine.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: November 25, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Gary J. Arvan
  • Patent number: 8887493
    Abstract: A fitting portion structure of a device for post-processing exhaust gas in an agricultural operation vehicle is provided. The device is arranged in parallel to the lengthwise direction of an engine at the upper portion of an exhaust manifold of the engine, an exhaust gas inlet is coupled to the exhaust manifold or to a turbo charger and a flange pipe which are located at the lower portion of the exhaust gas inlet, and a fixing means is arranged between the engine and the device to support the load of the device. The fixing means includes a frontal bracket arranged between a cylinder head on the front side of the engine and a DPF canning of the device, and a rear bracket arranged between a cylinder head on the rear side of the engine and a flange coupling portion of the flange pipe.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 18, 2014
    Assignee: Daedong Industrial Co., Ltd.
    Inventor: Yong Shin
  • Patent number: 8875487
    Abstract: An exhaust purifying system includes: a catalytic device supplied with electric power from a power supply unit; a first connecting unit connecting one end of the catalytic device to a negative electrode node of the power supply unit; a second connecting unit connecting the other end of the catalytic device to a positive electrode node of the power supply unit; a leak detecting unit detecting leak from the power supply unit; and a control unit controlling opening and closing of each of the first and second connecting units. When leak is not detected by the leak detecting unit in a leak check state where one of the first and second connecting units is closed and the other is opened, the control unit closes the other and applies current through the catalytic device, and when leak is detected in the leak check state, the control unit does not apply the current through the catalytic device.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: November 4, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Katsuta
  • Publication number: 20140311127
    Abstract: A vehicle emission control system is configured to operatively receive exhaust gas from a combustion engine and includes an exhaust gas after treatment system (EATS) configured to operatively clean the received exhaust gas, a burner unit configured to operatively heat the received exhaust gas to a predetermined temperature before the exhaust gas is provided to the EATS, and a pump unit configured to operatively provide the burner unit with air to be used b the burner unit in a heating process. The pump unit is configured to be operatively propelled by exhaust gas, and the burner unit is arranged upstream the pump unit such that exhaust gas from the burner unit is operatively provided to the pump unit for propelling the pump unit.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jan LINDBLOM, Martin SJÖHOLM, Lars SUNDIN
  • Patent number: 8857162
    Abstract: The present disclosure is directed to a system for reducing the cold start time for a vehicle with a twin fuel engine. The system has an exhaust system, from which exhaust is discharged and collected on an exhaust manifold. A heat exchanger is positioned within the exhaust system, with coolant flow passages in thermal communication with the engine, and the heat exchanger. A control valve is coupled to a first flow path operable to direct the exhaust through the heat exchanger across the first flow path and a second flow path in selective amounts.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 14, 2014
    Assignee: Caterpillar Inc.
    Inventors: Cory Andrew Brown, Joshua Wayne Steffen
  • Patent number: 8839607
    Abstract: Methods and systems are provided for expediting catalyst heating and generating vacuum by controlling an EBV to direct exhaust through an ejector arranged in parallel with the EBV. A position of the EBV may be controlled to achieve a desired exhaust backpressure for current engine operating conditions and stored vacuum level. Compensation for the effect of EBV position on engine airflow may be provided by adjustment of other parameters such as intake throttle position and spark timing.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 23, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Joseph Norman Ulrey
  • Patent number: 8833059
    Abstract: A motor vehicle combustion engine includes an air supply section and an exhaust gas recirculation section that includes a particle filter and an SCR exhaust gas purification component. A first exhaust gas turbocharger includes a turbine arranged upstream of the particle filter in the exhaust gas section. A first exhaust gas recirculation line, which diverges from the exhaust gas section upstream of the turbine of the first exhaust gas turbocharger, and a second exhaust gas recirculation line, which diverges from the exhaust gas section downstream of the particle filter are provided to recirculate the exhaust gas from the exhaust gas section into the air supply system. An SCR catalyst is arranged in the second exhaust gas recirculation line.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: September 16, 2014
    Assignee: Daimler AG
    Inventor: Berthold Keppeler
  • Patent number: 8820056
    Abstract: Disclosed is a super-turbocharger system that increases power and efficiency of an engine. The system uses the exothermic properties of a catalytic converter to extract additional energy from exhaust heat that is used to add power to the engine. Compressed air is supplied and mixed with exhaust gases upstream and/or downstream from a catalytic converter that is connected to an exhaust manifold. The gaseous mixture of exhaust gases and compressed air is sufficiently rich in oxygen to oxidize hydrocarbons and carbon monoxide in the catalytic converter, which adds heat to the gaseous mixture. In addition, a sufficient amount of compressed air is supplied to the exhaust gases to maintain the temperature of the gaseous mixture at a substantially optimal temperature level. The gaseous mixture is applied to the turbine of the super-turbocharger, which increases the output of said super-turbocharger, which increases the power and efficiency of said engine.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: September 2, 2014
    Assignee: Vandyne Superturbo, Inc.
    Inventors: Ed VanDyne, Volker Schumacher, Jared William Brown, Tom Waldron
  • Patent number: 8820050
    Abstract: Embodiments for reducing ammonia slip are provided. In one example, a method for reduction of ammonia emissions from an engine exhaust gas aftertreatment device with an SCR catalyst comprises determining a concentration of NOx and/or ammonia in the exhaust gas aftertreatment device, comparing a determined value of NOx and/or ammonia concentration with a nominal value for NOx and ammonia, respectively, and if an actual or shortly forecasted ammonia concentration is above the respective nominal value, triggering engine conditions with higher exhaust NOx concentration. In this way, ammonia slip may be reduced without degrading fuel economy.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: September 2, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Alexey A. Dubkov, Mario Balenovic, Jan Harmsen, Robert Ukropec, Brendan Patrick Carberry
  • Patent number: 8813490
    Abstract: An exhaust emission control device for an internal combustion engine is provided that can suppress the adherence of HC to an EGR path and the like accompanying enrichment of the exhaust air/fuel ratio.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: August 26, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventor: Katsuji Wada
  • Patent number: 8806868
    Abstract: According to one embodiment of the invention, a secondary air injection system includes a first conduit in fluid communication with at least one first exhaust passage of the internal combustion engine and a second conduit in fluid communication with at least one second exhaust passage of the internal combustion engine, wherein the at least one first and second exhaust passages are in fluid communication with a turbocharger. The system also includes an air supply in fluid communication with the first and second conduits and a flow control device that controls fluid communication between the air supply and the first conduit and the second conduit and thereby controls fluid communication to the first and second exhaust passages of the internal combustion engine.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 19, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Ko-Jen Wu, Darrell J. Walter
  • Patent number: 8783014
    Abstract: The present invention is intended to suppress the inflow of an ammonia derived compound to an EGR passage. In the present invention, in an exhaust system, there is arranged an ammonia derived compound addition means in such a position as to enable at least a part of the ammonia derived compound added therefrom to arrive at a connection portion of the EGR passage. Further, in the present invention, the inflow of the ammonia derived compound added from the ammonia derived compound addition means into the EGR passage is suppressed by a suppression means.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: July 22, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kazuhiro Itoh
  • Patent number: 8783015
    Abstract: In systems in which there is insufficient pressure difference between the intake and the exhaust to drive the EGR, an EGR pump is provided. In a dual-engine system, disclosed herein, the EGR system, i.e., the EGR cooler and EGR pump, is shared to obviate the need for two of each. Shutoff valves may be provided between the EGR system and a secondary of the two engines to isolate the secondary engine when it is not operating. When the engines are OPOC engines, exhaust aftertreatment devices, such as diesel oxidation catalysts and/or diesel particulate filters, may be placed upstream of where the EGR gases tee off from the engine's exhaust to thereby maintain a high pressure ratio across an exhaust turbine located downstream in the engine's exhaust.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: July 22, 2014
    Assignee: EcoMotors, Inc.
    Inventor: Peter Hofbauer
  • Patent number: 8776504
    Abstract: An exhaust treatment system for a vehicle includes an intake conduit adapted to receive pressurized intake air provided from a turbocharger compressor and supply the pressurized intake air to an internal combustion engine. An uninterrupted bypass conduit bypasses the internal combustion engine and includes upstream and downstream ends. The upstream end branches from the intake conduit. An exhaust conduit includes an upstream end adapted to receive exhaust from the internal combustion engine. An upstream end of a mixing tube is fixed to and in fluid communication with a downstream end of the exhaust conduit and the downstream end of the bypass conduit at a tubular joint, wherein the exhaust and the pressurized intake air are mixed within the mixing tube. An exhaust treatment device is in fluid communication with a downstream end of the mixing tube.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 15, 2014
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Christopher J. Kleinfeld