With Means Cooling Reactor Or Reactor Feed Patents (Class 60/298)
  • Patent number: 10851698
    Abstract: An exhaust gas guiding device includes an exhaust passageway, an exhaust pipe and an exhaust cover. The exhaust passageway is formed in a bonnet of the construction machine to connect an engine room with an exterior of the construction machine. The exhaust pipe is connected to the exhaust passageway. The exhaust cover is installed at the exhaust passageway to protrude from the bonnet to guide the exhaust gas to the exterior. The exhaust cover having a cylindrical shape connected to the exhaust passageway includes a cover body and an exhaust portion. The exhaust portion is slantly connected to the cover body to guide the exhaust gas in an extending direction of the exhaust portion. The exhaust pipe is positioned adjacent to an inner surface of the cover body. The exhaust pipe has a central axis away from a central axis of the exhaust cover.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: December 1, 2020
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventor: Youngmoo Ji
  • Patent number: 10774720
    Abstract: An exhaust aftertreatment system includes a first catalytic converter, an oxidation catalyst including a storage catalyst, an air injector, and a cooling unit. The exhaust aftertreatment system is fluidly coupled to an output of a spark-ignited internal combustion engine that operates in the rich regime during acceleration and the lean regime during deceleration. In one aspect, the storage catalyst stores ammonia produced while the engine operates in the rich regime. The stored ammonia reacts with nitrogen oxide compounds produced when the engine operates in the lean regime. In another aspect, the nitrogen oxide compounds react with ammonia produced while the engine operates in the rich regime.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: September 15, 2020
    Assignee: Tecogen, Inc.
    Inventors: Ahmed F. Ghoniem, Jean Roy
  • Patent number: 10774724
    Abstract: An exhaust aftertreatment system includes a first stage catalytic converter, a second stage catalytic converter, and a conduit extending from the first stage catalytic converter to the second stage catalytic converter. The conduit passes through an exhaust gas intercooler, between the first and second stage catalytic converts, that reduces the temperature of the exhaust to about 300° F. to about 500° F. Air is ejected into the exhaust conduit to increase the oxygen concentration in the exhaust before it passes through the second stage catalytic converter. The air can be ejected from an air ejection conduit that extends to an engine charger compressor or a compressed air conduit that extends from the engine charger compressor, such as a turbo charger and/or a supercharger, to the engine. A gas particulate filter can be disposed in the exhaust conduit or it can be integrated with the second stage catalytic converter, for example as a catalyzed gas particulate filter.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: September 15, 2020
    Assignee: Tecogen, Inc.
    Inventors: Ahmed F. Ghoniem, Robert Panora, Jean Roy, Joseph Gehret
  • Patent number: 10563553
    Abstract: The present application relates to a spray tower for cleaning the exhaust gas from marine engines, wherein the spray tower, in installed position, is vertically positioned and comprises a central exhaust gas pipe for introducing exhaust gas into the spray tower through an exhaust gas inlet positioned at a proximal end of the central exhaust gas pipe, the central exhaust gas pipe being positioned at a bottom end of the spray tower, an exhaust gas outlet at a top end of the spray tower for withdrawing purified exhaust gas from the spray tower, one or more spray devices for providing scrubber liquid within the spray tower counter-current to the general exhaust gas flow, and at least two engine exhaust gas pipes being in fluid connection with the distal end of the central exhaust gas pipe. Furthermore, a method for reducing the amount of SOx in exhaust gas is described.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 18, 2020
    Assignee: Yara Marine Technologies AS
    Inventors: Shyam Bahadur Thapa, Peter Strandberg
  • Patent number: 10337382
    Abstract: A heat recovery device comprises a valve body inwardly defining a direct flow path for exhaust gases from an inlet to an outlet, a heat exchanger comprising a flow passage for the exhaust gases emerging in an inlet zone of the valve body, and a gate positioned in the valve body. The heat recovery device comprises a guide wall positioned in the direct flow path at the inlet zone, arranged to guide the exhaust gases from the inlet toward the cutoff section away from the inlet zone when the gate frees the direct flow path, and delimiting at least one orifice to allow the exhaust gases to go to the inlet zone when the gate closes off the direct flow path.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 2, 2019
    Assignee: Faurecia Systems D'Echappement
    Inventors: Yannick Godard, Julien Cabillic
  • Patent number: 10107214
    Abstract: A control system for an internal combustion engine includes a temperature sensor and an engine controller. The sensor measures the temperature of exhaust gas passing through an exhaust manifold of the engine during each cycle. The controller selectively operates the engine in a first state and a second state. In the first, normal state, a quantity of fuel based on an open loop fuel mass command value is injected into the engine each cycle. In the second state, the controller determines a temperature of the exhaust gas during a normal cycle, injects the quantity and additional fuel into the engine during a second cycle, determines the temperature of the exhaust gas during the second cycle, compares the temperatures, and adjusts the command value for fuel to be injected each cycle when operating the engine in the first state.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 23, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Fischer, Nikhil Ravi
  • Patent number: 9869228
    Abstract: In an exhaust passage structure in a V-type four-stroke engine of an outboard motor, an exhaust passage is connected to the respective exhaust ports of a plurality of cylinders so that a first exhaust passage portion is provided on at least one lateral side of the cylinder block in a width direction and collects exhaust gas discharged from the respective exhaust ports of the plurality of cylinder assemblies, while a second exhaust passage portion connects the first exhaust passage portion with an exhaust muffler chamber installed outside the engine, and an exhaust guiding portion is provided so as to oppose to a joint surface between the cylinder block and the cylinder head in a manner to be located in the first exhaust passage portion to guide the exhaust gas discharged from the exhaust ports to a connecting portion between the first exhaust passage portion and the second exhaust passage portion.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 16, 2018
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Tetsushi Achiwa, Keisuke Daikoku
  • Patent number: 9719388
    Abstract: A cooling system for an internal combustion engine in which an exhaust purification catalyst is arranged in an exhaust passage of the internal combustion engine, the cooling system including: a cooling unit configured to cool the exhaust passage upstream of the exhaust purification catalyst; a heat transmission inhibition portion configured such that heat transfer from the exhaust passage downstream of a location cooled by the cooling unit to the cooling unit is inhibited; and a heat radiation suppression portion that is provided in a curved section positioned in the exhaust passage from a location where the heat transmission inhibition portion is provided to the exhaust purification catalyst, and that is configured to suppress heat radiation transmitted from exhaust gas flowing in the curved section to an atmosphere around the curved section through curved section passage walls forming the curved section. With such a configuration, the decrease in exhaust gas temperature can be suppressed.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 1, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshihisa Shinoda
  • Patent number: 9677511
    Abstract: An exhaust gas cooler may include an outer housing and an inner housing having a heat exchanger insert arranged therein. The heat exchanger insert may include a plurality of pipes around which exhaust gas flows transversely in the inner housing and through at least some of which a coolant of a first cooling circuit flows. At least a portion of the outer housing may be cooled by a second cooling circuit. The second cooling circuit may be separate from the first cooling circuit.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: June 13, 2017
    Assignee: Mahle International GmbH
    Inventors: Steffen Groezinger, Martin Paarmann, Henning Schroeder
  • Patent number: 9347347
    Abstract: An exhaust gas after-treatment device for a diesel engine is provided. The exhaust gas after-treatment device comprises an oxidation treatment unit having a diesel oxidation catalyst (DOC), an adsorption treatment unit having a diesel particulate filter (DPF), and a discharge unit for discharging exhaust gas that is filtration-treated through the oxidation treatment unit and the adsorption treatment unit, wherein the DOC of the oxidation treatment unit is provided with a baffle on the front thereof for even diffusion-introduction of exhaust gas.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 24, 2016
    Assignee: DAEDONG INDUSTRIAL CO., LTD.
    Inventor: Yong Shin
  • Patent number: 9187877
    Abstract: Provided is a machine body capable of preventing thermal decomposition of a liquid reducing agent in a reducing agent injector. The machine body includes an exhaust gas treatment device that reduces nitrogen oxides in exhaust gas of an engine provided within a machine room, and a reducing agent supplier that supplies the liquid reducing agent to the exhaust gas treatment device. The exhaust gas treatment device includes a reducing agent injector that injects the liquid reducing agent supplied from the reducing agent supplier, and a cooling fan that is installed in the vicinity of the reducing agent injector so as to face the reducing agent injector. The cooling fan performs cooling by blowing cooling wind of external air, which is taken in from the outside of the engine room, against the reducing agent injector and its upstream side.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 17, 2015
    Assignee: Caterpillar SARL
    Inventors: Toru Imano, Akito Nakai, Shinichi Nishiyama
  • Patent number: 9051853
    Abstract: A system includes a heat exchanger and a fluid flow control module. The heat exchanger includes a substrate, a catalyst applied to the substrate, and fluid passages. Exhaust gas from an engine flows through the heat exchanger and a working fluid in the fluid passages absorbs heat from the exhaust gas. The fluid flow control module controls fluid flow from the heat exchanger based on a temperature of the catalyst.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: June 9, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Eugene V. Gonze, Stuart R. Smith, Norman K. Bucknor
  • Patent number: 9021787
    Abstract: A fluid delivery apparatus with a flow sensing means for delivering a first fluid into a second fluid. In a fluid delivery apparatus using a common rail method, which produces a pulsated flow, the flow sensing means generates sensing signals indicative of the flow rate and the temperature of the second fluid, the delivery rate of the first fluid, and the evaporating rate of the first fluid, while in a fluid delivery apparatus using a pump metering method, the flow sensing means is able to provide a sensing signal indicative of the delivery rate of the first fluid. The sensing signals can be used in a feedback control for controlling delivery rate, in limiting delivery rate according to the evaporation capability of the first fluid, and in a diagnostic system detecting failures and abnormalities in the fluid delivery apparatus.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 5, 2015
    Inventors: Mi Yan, Baohua Qi
  • Patent number: 9016048
    Abstract: An exhaust arrangement for an internal combustion engine. The exhaust arrangement includes a diffuser duct including a wall surface which diverges between an inlet and a first outlet. The arrangement further includes an auxiliary duct extending from a second outlet of the diffuser duct. The second diffuser duct outlet being located on the wall surface between the diffuser duct inlet and the first outlet. The auxiliary duct includes a heat recovery device configured to convert heat energy from exhaust gases passing through the auxiliary duct in use to mechanical or electrical energy.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: April 28, 2015
    Assignee: ROLLS-ROYCE plc
    Inventor: Stephen Gallimore
  • Patent number: 8997468
    Abstract: A radiator is arranged behind an engine, a selective catalytic reduction apparatus, and a connecting pipe. A partition wall partitions first and second accommodation spaces. The engine, the selective catalytic reduction apparatus, and the connecting pipe are arranged in the first space. The radiator is arranged in the second space. A reducing agent tank is arranged behind the partition wall. A reducing ejection apparatus attached to the pipe ejects reducing agent into the pipe. A reducing agent hose connects the tank and the apparatus. The hose has a boundary portion positioned at a boundary between the first and second spaces. A height position of the boundary portion is between top and bottom sections of the connecting pipe. The boundary portion and the reducing agent ejection apparatus are arranged on a left or right side of a center line extending in a front and back direction of the partition wall.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 7, 2015
    Assignee: Komatsu Ltd.
    Inventors: Yosuke Kondo, Yuki Arai
  • Patent number: 8997470
    Abstract: An exhaust gas purifying device for an internal combustion engine, including: an electrically heated catalyst which has a catalyst carrier supporting a catalyst and a carrier retention unit which is provided on an outer periphery of the catalyst carrier, which retains the catalyst carrier, and which has an electrical insulation property; and a cooling unit which cools the carrier retention unit. Therefore, it is possible to prevent the temperature of the carrier retention unit from becoming high, and it becomes possible to appropriately ensure the insulation property of the electrically heated catalyst. Hence, it becomes possible to expand a condition range in which the current can be applied to the electrically heated catalyst.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 7, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mamoru Yoshioka, Noriaki Kumagai, Naoya Takagi
  • Publication number: 20150068198
    Abstract: An apparatus for cooling a DEF doser tip in an engine having an exhaust pipe comprises a cooling block connected with the DEF doser tip. A first port is connected with the cooling block. One end of a cooling conduit connected to the first port. An opposite end of the cooling conduit connected to a first end of a second tube. An opposite end of the second tube connected with a source of engine coolant. A second port is connected with the cooling block. An end of the second port opposite to the cooling block is connected with the source of engine coolant. Means for maintaining configuration of the cooling conduit are disposed between the cooling conduit and the exhaust pipe.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: International Engine Intellectual Property Company
    Inventors: Michael Louis Shovels, Jason Brian Arriaga, Jose Israel Landeros Mendoza
  • Publication number: 20150059322
    Abstract: A reductant delivery unit having active cooling which is constructed to have sufficient structural robustness, and to improve corrosion resistance of the assembly, where an attack on the base injector is conceivable with the use of incorrect coolant media. The reductant delivery unit has an upper shield, a lower shield connected to the upper shield, and an inner sleeve. The reductant delivery unit also includes a lower sleeve connected to the inner sleeve and the lower shield. A liquid cooling cavity is formed by the connection between the inner sleeve and the lower shield, the lower sleeve and the lower shield, and the lower sleeve and the inner sleeve. Coolant flows into the liquid cooling cavity to provide a cooling function to an injector partially located within the inner sleeve, and a corrugated portion of the lower sleeve transfers heat away from at least a portion of the injector.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: Continental Automotive Systems, Inc.
    Inventors: Stephen C. Bugos, Willem Nicolaas Van Vuuren
  • Patent number: 8959904
    Abstract: A method for controlling a vehicle having an engine with an exhaust heat recovery system, includes generating a signal to control exhaust gas flow through an exhaust gas heat exchanger, and generating a diagnostic code based on the signal and a rate of change of coolant temperature. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a temperature sensor. A controller for the vehicle is configured to (i) generate a signal to control exhaust gas flow through the exhaust gas heat exchanger, and (ii) generate a diagnostic code based on the signal and a rate of change of coolant temperature.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 24, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Angel Fernando Porras, Douglas Raymond Martin
  • Patent number: 8959903
    Abstract: A reductant delivery system is provided for delivery of reductant to an engine exhaust aftertreatment system that is heated during cold temperature conditions. A heat exchange fluid flows through a heat exchange circuit that provides a flow path from the heat source to the doser, from the doser to the reductant storage tank, and from the reductant storage tank to the heat source. A control valve controls the flow of the heat exchange fluid in the heat exchange circuit so that at least one heat exchange cycle includes a circulation period that increases the temperature of the reductant in the doser and storage tank and a termination period where circulation is stopped until reductant temperature in the doser reaches a lower limit.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: February 24, 2015
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Andrew Myer, John Heichelbech, Stephanie Apewokin, Stephen Holl, James F. Burke
  • Patent number: 8959901
    Abstract: A metal-gas battery that utilizes an exhaust gas stream from a combustion engine as reactive gases is provided. Almost constant concentration of exhaust gases are supplied to the metal-gas battery via an existing engine systematic combustion system. The systematic combustion system keeps a definite air fuel mixture (A/F) that acts to enhance the fuel efficiency of the vehicle, and the metal-gas battery leverages the existing vehicle air management system. Exhaust heat of the exhaust gases is sometimes utilized for the heat control of the vehicle, and then the cooled exhaust gases are introduced into the metal-air battery to be consumed during a cathode reduction reaction to create and store electrical energy. The metal-gas battery supports the cleaning of exhausted gases using existing emission catalysts.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: February 24, 2015
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Fuminori Mizuno, Paul T. Fanson
  • Patent number: 8938946
    Abstract: An exhaust gas system for an internal combustion engine has a thermoelectric power generator with a hot side and a cold side. The hot side is arranged on the exhaust gas system and is heatable by exhaust gas of the internal combustion engine. A first heat exchanger having a first thermal conductivity is arranged between the hot side and the exhaust gas flow. At least a second thermoelectric power generator is arranged on the exhaust gas system and has a second heat exchanger with a thermal conductivity that is different from the first thermal conductivity. The arrangement of thermoelectric power generators can generate electric power over a significantly wider operating point range of the internal combustion engine.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: January 27, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Rainer Richter
  • Publication number: 20150013314
    Abstract: An exhaust manifold cooling jacket has internal passages for the circulation of liquid coolant and encloses an exhaust manifold such that a gap is created between the exhaust manifold and cooling jacket. Flowing coolant through the jacket regulates outer jacket temperature while enabling high intra-manifold exhaust gas temperatures for thorough intra-manifold combustion and improved emissions. A liquid-cooled exhaust system includes a turbocharger disposed between manifold and elbow, with liquid coolant flowing from manifold to elbow through the turbocharger. Another liquid-cooled exhaust manifold contains an internal exhaust combustion catalyst wrapped in an insulating blanket. In some marine applications, seawater or fresh water coolant is discharged into the exhaust gas stream at an attached exhaust elbow.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Inventor: John H. Westerbeke, Jr.
  • Patent number: 8931260
    Abstract: A selective catalytic reduction system that can defrost urea aqueous solution without interruption of warm air of an engine or heating of a vehicle cabin. The system includes a defrosting control unit to open a tank heater valve at the time of starting the engine and close the tank heater valve when the temperature of the urea aqueous solution detected by a temperature sensor reaches a predetermined defrosting completion determination value, and a warm air priority control unit to prohibit the opening of the valve by the defrosting control unit when the temperature of the cooling water is less than a predetermined defrosting permission value and permit the opening of the valve by the defrosting control unit when the temperature of the cooling water is equal to or more than the defrosting permission value.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: January 13, 2015
    Assignee: Isuzu Motors Limited
    Inventors: Masanobu Minezawa, Shinji Hara, Tetsuya Murata
  • 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: 20140360169
    Abstract: A system and method for treating diesel exhaust in a diesel exhaust system, and specifically for improved NOx conversion efficiency during particulate filter regeneration, is disclosed. The exhaust gas treatment system includes a diesel oxidation catalyst (DOC); a diesel particulate filter (DPF) fluidly coupled to the DOC; a mixer fluidly coupled to the DOC and DPF, a thermal control device (TCD) positioned after the DPF, a NOx slip catalyst (NSC), at least one temperature sensor (TS), wherein the thermal control device reduces the temperature of the exhaust gas stream. The thermal control device used in conjunction with the NOx slip catalyst provides for improved overall exhaust system NOx conversion efficiency during active DPF regeneration.
    Type: Application
    Filed: January 19, 2012
    Publication date: December 11, 2014
    Applicant: International Engine Intellectual Property Company, LLC
    Inventor: Adam C. Lack
  • Publication number: 20140360161
    Abstract: A cooling system for an aftertreatment module mounted within an enclosure is provided. The cooling system includes a source of forced air in fluid communication with the enclosure. At least one duct is provided in conjunction with the source of forced air. The at least one duct is configured to direct at least a portion of the forced air from the source of forced air towards a first component of the aftertreatment module. A remaining portion of the forced air that was not directed towards to the first component is directed towards a second component of the aftertreatment module.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 11, 2014
    Applicant: Caterpillar Global Mining Expanded Products Pty Ltd
    Inventors: Rajesh Arani, Mohamed Ibrahim Sabibullah, Venkatraman Podiyanagaswamy, Guillaume Bourgoin, Jeffery Mohamed Othman
  • Patent number: 8904772
    Abstract: Regarding an engine exhaust gas heat exchanger that allows exhaust gas to collide with a coolant passage through apertures, a configuration that can improve efficiency of heat exchange is provided. The engine exhaust gas heat exchanger 1 is provided with multiple stages of unit exhaust gas passages 3a, 3b, 3c that are configured with a first exhaust gas passage A in which a plane facing an inlet is blocked and that has a plurality of apertures 30 in a circumferential direction and in a flow direction, and a second exhaust gas passage B that has a dividing wall facing the apertures 30 and also serving as the coolant passage 20 and an outlet that also serves as an inlet of the first exhaust gas passage A of a next stage or an outlet 26 of the engine exhaust gas heat exchanger 1.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 9, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Hiroshi Azuma, Kosuke Matsuura
  • Patent number: 8899029
    Abstract: Apparatuses for marine propulsion systems having an internal combustion engine comprise an exhaust conduit conveying exhaust from the internal combustion engine; a cooling jacket on the exhaust conduit; and a cooling passage between the exhaust conduit and the cooling jacket. The cooling passage guides flow of cooling liquid from upstream to downstream towards a location where the cooling liquid is mixed with exhaust in the exhaust conduit. First and second baffles are axially spaced apart and extend transversely with respect to the cooling passage so as to disperse the flow of cooling liquid at the location where the cooling liquid is mixed with the exhaust, thereby reducing reversion of cooling liquid in the exhaust conduit. At least one catalyst and at least one oxygen sensor are disposed in the exhaust conduit. The oxygen sensor is adjacent to and oriented parallel to a downstream face of the catalyst so that exhaust flows perpendicularly across the sensor.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: December 2, 2014
    Assignee: Brunswick Corporation
    Inventors: Robert Dreyer, Mark J. Glodowski, Daniel B. Slanker
  • Patent number: 8899016
    Abstract: An integrated water-gas-shift (WGS) and emissions control device (ECD) catalyst for treating exhaust from an internal combustion engine. The engine is assumed to have an EGR loop, such that exhaust is recirculated back to the engine's intake. A WGS catalyst on the EGR loop, for conditioning the EGR flow, is integrated with a catalyzed ECD on the main exhaust line, for reducing pollutant emissions.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 2, 2014
    Assignee: Southwest Research Institute
    Inventors: Jess W. Gingrich, Steven H. Almaraz
  • Patent number: 8887496
    Abstract: A heat recovery system for an engine is provided herein. According to one approach, the heat recovery system includes an upstream portion that circumferentially wraps around an outlet of an exhaust manifold. Further, the heat recovery system includes a downstream portion in direct surface contact with a top exterior surface and a bottom exterior surface of a plurality of runners of the exhaust manifold.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 18, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Joyce Ann Jarzombek, James M. Emery, Philip Damian Cierpial, Ray Host, Eric Garner Ladner, Robert Andrew Wade, Emad Khalil
  • Patent number: 8881513
    Abstract: A device for producing electrical energy from the exhaust gas of an internal combustion engine, includes a generator with an exhaust gas inlet connection, an exhaust gas outlet connection and at least one heat exchange section therebetween. At least one flow diversion and/or flow division is provided between the exhaust gas inlet connection and the heat exchange section. The heat exchange section has a plurality of flow paths perpendicular to the exhaust gas inlet connection, to be assigned to a plurality of heat exchange units. At least a portion of the heat exchange assembly has at least one thermoelectric element and a cooling device. The at least one thermoelectric element is captively connected to the cooling device. A motor vehicle having the device is also provided.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 11, 2014
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Rolf Brück, Jan Hodgson, Sigrid Limbeck, Axel Schatz
  • Patent number: 8869517
    Abstract: An exhaust manifold cooling jacket has internal passages for the circulation of liquid coolant and encloses an exhaust manifold such that a gap is created between the exhaust manifold and cooling jacket. Flowing coolant through the jacket regulates outer jacket temperature while enabling high intra-manifold exhaust gas temperatures for thorough intra-manifold combustion and improved emissions. A liquid-cooled exhaust system includes a turbocharger disposed between manifold and elbow, with liquid coolant flowing from manifold to elbow through the turbocharger. Another liquid-cooled exhaust manifold contains an internal exhaust combustion catalyst wrapped in an insulating blanket. In some marine applications, seawater or fresh water coolant is discharged into the exhaust gas stream at an attached exhaust elbow.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 28, 2014
    Assignee: WBIP, LLC
    Inventor: John H. Westerbeke, Jr.
  • Patent number: 8869516
    Abstract: A machine includes an internal combustion engine disposed within an engine compartment and supported on a machine frame. An exhaust stack has an inlet fluidly connected to an exhaust manifold of the internal combustion engine and an outlet in fluid communication with ambient air. A diesel particulate filter is disposed along the exhaust stack. A cooling package includes at least one heat exchanger and a blower fan. The blower fan is configured to blow cooling air from the engine compartment sequentially through the at least one heat exchanger and an outlet of the cooling package. Exhaust gas exiting the exhaust stack outlet is mixed with the cooling air exiting the cooling package outlet in a high temperature zone surrounding the exhaust stack outlet to form a fluid mixture, and a temperature of the fluid mixture at a perimeter of the high temperature zone is below 200 degrees Celsius.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: October 28, 2014
    Assignee: Caterpillar SARL
    Inventors: Sage Frederick Smith, John Edward Preble, Jr., Terry Marlin Smith, Jr.
  • Patent number: 8869512
    Abstract: An apparatus for controlling engine operations to a low NOx output amount at low selective catalytic reduction (SCR) temperature values and alternatively for controlling engine operations in an EGR cooler bypass regime at low engine load levels is described. The apparatus includes a controller that interprets a present speed and a present load of an engine, that determines an engine operating region in response to the present speed and the present load, and that provides an EGR cooler bypass command that provides EGR cooler bypass flow in response to the engine operating region being a first, low load, region. The controller operates the engine with supplemental NOx management in response to the engine operating region being a second, intermediate load, region. The controller operates the engine without either of the EGR cooler bypass or the supplemental NOx management in response to the engine operating region being a third region.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: October 28, 2014
    Assignee: Commins Inc.
    Inventors: Vivek Anand Sujan, Abdul R. Ofoli, Govindarajan Korthandaraman
  • 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
  • Publication number: 20140298780
    Abstract: A device for the aftertreatment of an exhaust gas of an internal combustion engine flowing through an exhaust line includes at least one dosing unit disposed in an opening of an exhaust pipe of the exhaust line and configured to add an exhaust-gas aftertreatment agent into the exhaust line. The dosing unit is enclosed by a cooling jacket, through which the dosing unit is fastened in the opening of the exhaust pipe. The cooling jacket is at least partially enclosed by a space or chamber delimited at least by the cooling jacket, the exhaust pipe, and a cover plate. The cover plate is connected to the exhaust pipe and spaced apart from the cooling jacket or the dosing unit by a gap. A motor vehicle having the device is also provided.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: JAN HODGSON, SVEN SCHEPERS
  • Publication number: 20140298779
    Abstract: A wall flow type exhaust gas purification filter includes a honeycomb structure body and plugging portions. Four inlet opening cells having a substantially hexagonal shape in cross section surround one outlet opening cell having a substantially square shape in cross section, where one side of an inlet opening cell and one side of the outlet opening cell have a substantially same length and are substantially parallel and adjacent to each other. Distance a between the partition wall defining a first side of the outlet opening cell and the partition wall defining an opposed second side is in a range of exceeding 0.8 mm and less than 2.4 mm, and distance b between the partition wall defining a third side of the inlet opening cell and the partition wall defining an opposed fourth side has a ratio to the distance a in a range exceeding 0.4 and less than 1.1.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 9, 2014
    Applicant: NGK Insulators, Ltd.
    Inventor: Yukio MIYAIRI
  • Patent number: 8839614
    Abstract: A thermoelectric generator for a vehicle is mounted at an exhaust pipe and produces electricity using a temperature difference between the exhaust gas and coolant. The generator includes: a housing; thermoelectric modules mounted at an outer circumferential surface of the housing; a plurality of coolant tubes mounted so as to closely attach the thermoelectric module to the housing; first coolant containers mounted at both ends of the coolant tubes, respectively; and second coolant containers mounted at both ends of the coolant tubes, respectively. The coolant tubes are assembled to the first and second coolant containers as a modularized type, and thus assemblability may be improved and partial replacement of components in case of breakdown may be easily performed. In the coolant tube of the present invention, heat exchange is concentratedly performed at a portion in contact with the thermoelectric module, and thus generation efficiency may be more improved.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: September 23, 2014
    Assignee: Hyundai Motor Company
    Inventors: Ho-Chan An, Jong-Ho Seon
  • Patent number: 8839611
    Abstract: An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication with the conduit to receive exhaust produced by the engine. The catalyst is operable to reduce one or more constituents of the exhaust.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: September 23, 2014
    Assignee: Cummins Power Generation IP, Inc
    Inventors: Mark E. Turpin, Clayton Smith, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz, Lee Severtson, David W. Strombeck
  • Patent number: 8806856
    Abstract: Provided is a control apparatus for an internal combustion engine that can favorably achieve compatibility between suppressing deterioration of a catalyst and suppressing progression of rich poisoning thereof when the internal combustion engine has a configuration that performs valve stopping control during a fuel-cut operation. Variable valve operating apparatuses are provided having valve stop mechanisms that can respectively change an operating state of an intake valve and an exhaust valve between a valve operating state and a closed-valve stopped state. When an integrated fuel injection amount is equal to or greater than a predetermined value ? when executing a fuel-cut operation, it is determined that rich poisoning of an upstream catalyst is in a progressed state. In that case, valve stopping control of the intake and exhaust valves is prohibited to thereby supply oxygen to the upstream catalyst.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: August 19, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Norihisa Nakagawa, Takashi Nishikiori, Yasuyuki Shibata, Shinya Misaka
  • Patent number: 8806858
    Abstract: An exhaust system for an engine is disclosed herein. The exhaust system includes a catalytic converter, an exhaust manifold upstream from the catalytic converter, and a heat pipe in thermal contact with the exhaust manifold and atmosphere. The system further includes a phase changing material that passively absorbs heat after catalytic light-off.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: August 19, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Shiguang Zhou, Michael Levin, Furqan Zafar Shaikh, Jeffrey Scott Hepburn, Donald S. Masch, Zhaoyang Zeng, James Patrick O'Neill, Danrich Henry Demitroff
  • Patent number: 8793986
    Abstract: A combined emission control device and exhaust gas heat exchanger for connection to the exhaust gas flow from an engine of a motor vehicle is disclosed having a number of exhaust gas transfer passages and a number of coolant passages so as to permit heat to be transferred from exhaust gas flowing through the exhaust gas heat exchanger to coolant used to supply heating for a cabin of the motor vehicle. The exhaust gas heat exchanger includes a tapping to permit cooled exhaust gas to be extracted for use in a Low Pressure Exhaust Gas Recirculation system. The exhaust gas heat exchanger thereby provides dual functionality being able to recuperate heat for use in a cabin heater and cool exhaust gas for use in the Low Pressure Exhaust Gas Recirculation system.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: August 5, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Jonathan Edward Caine
  • Publication number: 20140196438
    Abstract: An assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines, wherein the exhaust is acted upon in a first stage catalytic converter. A first portion of the first stage catalytic converter output is cooled and a second portion of the catalytic converter output is not cooled. The cooled and not cooled exhausts are united and directed to a second stage catalytic converter. Air is injected into a selected one of (1) the not cooled exhaust prior to the juncture thereof with the cooled exhaust, and (2) the combined cooled and not cooled exhausts after the juncture thereof.
    Type: Application
    Filed: November 12, 2013
    Publication date: July 17, 2014
    Applicant: Tecogen, Inc.
    Inventors: Joseph B. Gehret, Robert A. Panora, Ranson Roser
  • Patent number: 8769940
    Abstract: An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication with the conduit to receive exhaust produced by the engine. The catalyst is operable to reduce one or more constituents of the exhaust.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: July 8, 2014
    Assignee: Cummins Power Generation IP, Inc.
    Inventors: Mark E. Turpin, Clayton Smith, Gary A. Salmonson, Brian G. Haupt, Shawn John Kipka, Kurt Butz, Lee Severtson
  • Patent number: 8763376
    Abstract: A vehicle includes a coolant circuit that circulates a flow of an engine coolant therethrough. The coolant circuit includes an Exhaust Gas Heat Recover (EGHR) system for transferring heat from a flow of exhaust gas from an internal combustion engine to the flow of the engine coolant. A control valve is disposed downstream of the EGHR system, and directs the flow of the engine coolant along either a first fluid flow path back to the internal combustion engine to heat the internal combustion engine, or a second fluid flow path including a transmission fluid warming system to heat a supply of transmission fluid to reduce transmission spin loss.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: July 1, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Gopala K. Garnepudi
  • Patent number: 8756917
    Abstract: An exhaust gas treatment system for an internal combustion engine comprises a particulate filter assembly configured to receive exhaust gas from the engine. The particulate filter assembly comprises an electrically heated catalyst, a particulate filter disposed downstream of the electrically heated catalyst, a hydrocarbon injector, in fluid communication with the exhaust gas, upstream of the electrically heated catalyst and configured to inject excess hydrocarbon into the exhaust gas, an air pump in fluid communication with the exhaust gas upstream of the electrically heated catalyst and configured to deliver air to the exhaust gas to increase the volumetric gas flow rate through, and to decrease the heat residence time in, the particulate filter and a controller configured to operate the hydrocarbon injector, the electrically heated catalyst and the air pump based on predetermined exhaust gas flow rates, temperature thresholds and particulate loadings within the particulate filter.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 24, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Eugene V. Gonze, Michael J. Paratore, Jr., Garima Bhatia
  • Patent number: 8756924
    Abstract: A catalyst heating system includes a monitoring module, a mode selection module and an electrically heated catalyst (EHC) control module. The monitoring module monitors at least one of (i) a first temperature of a non-EHC of a catalyst assembly in an exhaust system of an engine and (ii) an active catalyst volume of the catalyst assembly. The mode selection module is configured to select an EHC heating mode and generate a mode signal based on the at least one of the first temperature and the active catalyst volume. The EHC control module controls current to an EHC of the catalyst assembly based on the mode signal.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 24, 2014
    Inventors: Eugene V. Gonze, Halim G. Santoso, Brian L. Spohn, Bryan Nathaniel Roos
  • Patent number: 8739520
    Abstract: The invention relates to an air-cooled exhaust gas heat exchanger, in particular exhaust gas cooler (1) for motor vehicles comprising channels (exhaust gas channels) which can be cross-flown by the exhaust gas of an internal combustion engine, between which ribs (4) for air cooling are arranged. According to the invention, the exhaust gas channels are embodied as tubes, in particular as flat tubes (3), which form the ribs (4) of a rib tube block (2) and the tube (3) has tube ends (3a) which are received in the collecting vessels (5) for the exhaust gas.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: June 3, 2014
    Assignee: Behr GmbH & Co. KG
    Inventors: Jörg Digele, Peter Geskes, Klaus Irmler, Frank Von Lützau
  • Patent number: 8720195
    Abstract: An exhaust assembly includes an exhaust pipe, a first venturi member at the inlet end of the pipe and a second venturi member at the outlet end of the pipe. A diffuser/mixer is mounted at the outlet end of the exhaust pipe. A shield pipe surrounds a portion of the exhaust pipe. A shield member is mounted to the shield pipe and covers a portion of the first venturi member. The first and second venturi members operate to combine ambient air with exhaust gases.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: May 13, 2014
    Assignee: Deere & Company
    Inventors: Jeffrey L. Gardner, Brian T. Brown, Gary S. Keys, II