Exhaust And External Fluid Mingling Structure Patents (Class 60/317)
  • Patent number: 10975751
    Abstract: A method for estimating a volume of thawed liquid in a motor vehicle tank, wherein the following operations are executed at regular time intervals: obtaining a temperature of the ambient air outside the tank using a thermometer; determining, according to said temperature outside the tank and by a first pre-established relation, a thermal energy transfer between the contents of the tank and the outside environment; determining, as a function of the power produced by a heating element, and by a second pre-established relation, a thermal energy transfer between the heating element and the contents of the tank; determining, as a function of the energy transfers, and by a third pre-established relation, an amount of thawed or refrozen liquid, during said time interval; the amounts of thawed and refrozen liquid are added during the preceding consecutive time intervals to estimate a volume of thawed liquid present in the tank.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 13, 2021
    Assignee: Plastic Omnium Advanced Innovation and Research
    Inventors: Jean-Philippe Rolland, Sebastien Decamp, Mamadou Saliou Balde
  • Patent number: 10920635
    Abstract: A vehicle includes an exhaust aftertreatment system for use with an automotive internal combustion engine. The system includes a reducing agent mixer configured to deliver a reducing agent for mixing with exhaust gases produced by the engine. The reducing agent mixer includes a mixing can defining an internal space, a doser configured to inject the reducing agent toward the internal space, and a reducing agent delivery device configured to direct the reducing agent into the internal space.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: February 16, 2021
    Assignee: Faurecia Emissions Control Technologies, USA, LLC
    Inventor: Tomasz Kozakiewicz
  • Patent number: 10227908
    Abstract: An exhaust aftertreatment system includes a housing including first and second axial ends. An exhaust inlet is disposed adjacent the first axial end. An exhaust outlet is disposed adjacent the second axial end. A catalytic converter is disposed between the first and second axial ends. A diffuser is disposed inside the housing between the first axial end and the catalytic converter. The diffuser includes a shell in communication with the exhaust inlet. The shell includes proximal and distal portions and a front side facing the catalytic converter. The proximal and distal portions are substantially equal in frontal area. The proximal portion is adjacent the exhaust inlet and includes a first plurality of front side openings totaling a first open area and the distal portion includes a second plurality of front side openings totaling a second open area. The first open area is about 1.8-2.2 times the second.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 12, 2019
    Assignee: Caterpillar Inc.
    Inventors: Guru Gireesh, Arvind Jujare, Tim T. Trubnikov
  • Patent number: 10135195
    Abstract: A communications plug, for high frequency applications, includes a housing, a plurality of contact conductor blades and insulation displacement contacts. A printed circuit board has a plurality of transmission paths connecting corresponding blades and insulation displacement contacts. The plug has a major coupling including coupling between the blades. The PCB further includes a compensation coupling arrangement that provides a smaller coupling as compared to the major coupling. The compensation coupling is no more than one half of the major coupling and has a different polarity from that of the major coupling. The compensation coupling is connected to a set of transmission paths at a location between the major coupling and the insulation displacement contacts.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 20, 2018
    Assignee: Surtec Industries, Inc.
    Inventor: Chou-Hsin Chen
  • Patent number: 10113468
    Abstract: A mixer assembly of a vehicle exhaust system includes a base tube or pipe section and a plurality of mixing or stirring blades that sequentially engage notches formed in an end or edge portion of the base tube section and interconnect with each other to form a static blade assembly. Each blade of the plurality of mixing blades spans across the interior volume of the base tube section and includes a tab or attachment feature at each of the opposing ends of the respective blade that engages notches on opposing sides of the base tube section. The tabs of the plurality of mixing blades may be coupled with the notches in a manner that prevents disengagement and provides no weld surfaces at an interior volume of the base tube section.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 30, 2018
    Assignee: Middleville Tool & Die Co.
    Inventor: Robert Leroy Middleton, Jr.
  • Patent number: 9683478
    Abstract: A dispersion plate that can be arranged on an upstream side of an oxygen concentration sensor in an exhaust pipe of an internal combustion engine, the oxygen concentration sensor being arranged in the exhaust pipe, is provided. The dispersion plate is configured to disperse an exhaust flow in the exhaust pipe. The dispersion plate includes a first plate and a second plate. The first plate includes a deflection plate that extends in an inclined direction and a twisted direction with respect to an extending direction of the exhaust pipe. The second plate extends in a direction orthogonal to the extending direction of the exhaust pipe. The second plate includes a through hole. The second plate is arranged on an outer circumferential side of the first plate in the exhaust pipe.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 20, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SANGO CO., LTD.
    Inventors: Tsukasa Nagayama, Naoki Yagi
  • Patent number: 9587544
    Abstract: A device for delivering a liquid additive includes: a tank configured to store the liquid additive; a pump; a suction point at which the liquid additive can be sucked out of the tank by the pump; and a filter at least partially delimiting an intermediate space between the filter and the suction point and separating the intermediate space from an interior space of the tank. The filter has a filter surface with a top edge and a bottom edge, the top edge and the bottom edge being spaced apart from one another in a vertical direction by 30 mm to 80 mm and the suction point being positioned at most 5 mm below the top edge in the vertical direction.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 7, 2017
    Assignee: Continental Automotive GmbH
    Inventors: Georges Maguin, Cheikh Diouf, Jan Hodgson
  • Patent number: 9528415
    Abstract: A dosing and mixing arrangement including an exhaust conduit defining a central axis; a mixing conduit positioned within the exhaust conduit; a dispersing arrangement (e.g., a mesh) disposed at the upstream end of the mixing conduit; an injector coupled to the exhaust conduit and configured to direct reactants into the exhaust conduit towards the mesh; and an annular bypass defined between the mixing conduit and the exhaust conduit for allowing exhaust to bypass the upstream end of the mixing conduit and to enter the mixing conduit downstream of the mesh.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: December 27, 2016
    Assignee: Donaldson Company, Inc.
    Inventors: Mark Thomas Brandl, Bruce Hoppenstedt, Stephen Ronald Schiller, Matthew S. Whitten
  • Patent number: 9314750
    Abstract: An exhaust treatment component for treating an engine exhaust including a housing including an inlet and an outlet. A mixing device is located within the housing between the inlet and the outlet, and the mixing device includes a shell communicating with the outlet, a decomposition tube having a first end and a second end, and a flow reversing device disposed proximate the second end. The first end extends from the shell and is configured to receive the exhaust from the inlet, and is configured to receive a reagent exhaust treatment fluid. The second end is positioned within the shell. The flow reversing device is configured to direct a mixture of the exhaust and reagent exhaust treatment fluid in predetermined directions into the shell, the flow reversing device reverses a flow direction of the exhaust back towards the first end of the decomposition tube.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: April 19, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: John Stanavich, Megan Wikaryasz, Rick Thompson
  • Patent number: 9291081
    Abstract: An exhaust treatment component for treating an engine exhaust. The component includes a housing including an inlet and an outlet, and a mixing assembly located within the housing between the inlet and the outlet. The mixing assembly includes a decomposition tube having a first end and a second end. The first end is configured to receive the exhaust from the inlet and is configured to receive a reagent exhaust treatment fluid. A flow reversing device is disposed proximate the second end, and the flow reversing device is configured to direct a mixture of the exhaust and reagent exhaust treatment fluid as the mixture exits the second end of the decomposition tube in a direction back toward the first end, wherein the flow reversing device includes a plurality of deflecting members for intermixing the exhaust and reagent exhaust treatment fluid.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 22, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: John Stanavich, William Adams, Figen Lacin, Manoj K. Sampath
  • Patent number: 9289724
    Abstract: An exhaust mixing device for mixing an exhaust produced by an engine with a reagent exhaust treatment fluid that is dosed into the exhaust from a dosing module. The exhaust mixing device includes a decomposition tube having a first end and a second end. The first end of the decomposition tube is configured to receive the exhaust and the reagent exhaust treatment fluid. A flow reversing device is positioned at the second end of the decomposition tube. The flow reversing device includes a plurality of deflecting members that intermix the exhaust and reagent exhaust treatment fluid, and direct the exhaust and reagent exhaust treatment fluid in predetermined directions, wherein the flow reversing device reverses a flow direction of the exhaust back towards the first end of the decomposition tube.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 22, 2016
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: John Stanavich, William Adams, Manoj K. Sampath, Meng-Huang Lu
  • Patent number: 9140175
    Abstract: In an engine including a cooling fan provided at one end of a drive shaft to cool the engine, a muffler is attached such that a longitudinal direction thereof coincide with a direction of gravity, and a muffler accommodating chamber is formed by a muffler cover. A portion of cooling air generated by the cooling fan is introduced into the muffler accommodating chamber so as to cool the muffler. At the muffler accommodating chamber, a cooling air outlet is provided at an upper end of a cooling passage, such that the waste heat of the muffler is discharged from the cooling air outlet to the outside during the stop of the engine. A cooling air inlet is disposed below the cooling air outlet such that the cooling air flows from the lower side to the upper side of the muffler.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 22, 2015
    Assignee: HITACHI KOKI CO., LTD.
    Inventor: Naoto Ichihashi
  • Publication number: 20150128577
    Abstract: An ignition control device for an engine provided with ignition plugs for each cylinder. The ignition control device includes a sensor that detects a signal that determines whether the engine is in an idling state or not, and an ignition control unit that determines whether the engine is in the idling state on the basis of a signal from the sensor and controls the ignition plugs to be simultaneously ignited if the engine is in the idling state, and controls part of the ignition plugs to be ignited if the engine is in a state other than the idling state.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Takuya EGUCHI
  • Patent number: 9021794
    Abstract: According to one embodiment, described herein is an apparatus for decomposing diesel exhaust fluid into ammonia for an internal combustion engine (ICE) system having a selective catalytic reduction system. The apparatus includes an outlet cover, an inlet cover coupled to the outlet cover, and a support plate disposed between the outlet cover and the inlet cover. The support plate forms an outlet channel with the outlet cover and an inlet channel with the inlet cover. The inlet channel is fluidly coupled to the outlet channel. Additionally, the inlet channel may be adjacent to the outlet channel.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Cummins Intellectual Property, Inc.
    Inventors: James Goss, Duncan Engeham, Ryan M. Johnson
  • Publication number: 20150101320
    Abstract: Provided is an apparatus which is capable of excellently mixing exhaust gas discharged from an engine with exhaust air to thereby improve lowering of temperature of the exhaust gas and suppression of noise. The apparatus comprises: a duct provided beneath an engine and having an upper edge surrounding an exhaust air inlet; an exhaust-gas pipe having an intra-duct portion extend inside the duct in a direction approximately perpendicular to a flow direction of the exhaust air; and an exhaust-gas-pipe cover provided just above the intra-duct portion to protect the intra-duct portion from oil which can drop down from above.
    Type: Application
    Filed: September 15, 2014
    Publication date: April 16, 2015
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Takao SUGANO
  • Patent number: 8999276
    Abstract: A mixing element positioned at an exhaust outlet of a Selective Catalytic Reduction (SCR) module is provided. The mixing element includes a base plate having an upper surface and a lower surface. The base plate is configured to deflect a portion of a flow of a fluid around the upper surface thereof. The mixing element also includes a plurality of vanes attached to the lower surface of the base plate in a spaced apart arrangement. The plurality of vanes is configured to induce a swirling effect in a flow of the fluid received therebetween.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 7, 2015
    Assignee: Caterpillar Inc.
    Inventor: Yung T. Bui
  • Patent number: 8991159
    Abstract: An exhaust gas system of an internal combustion engine, in particular for a vehicle, includes an exhaust gas conveying duct, at least one insert disposed in the exhaust gas conveying duct for purifying the exhaust gas, an injection system disposed upstream of the insert in the flow path and a turbulizer disposed between the injection system and the insert. A flow rectifier is provided in the exhaust gas conveying duct between the turbulizer and the insert.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: March 31, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Christian Krenn
  • Patent number: 8984868
    Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a diffuser configured to receive exhaust from an engine. The exhaust system may further have a plurality of dosers associated with the diffuser and configured to inject fuel into the diffuser. The exhaust system may also have a controller configured to selectively control an amount of fuel injected by each of the plurality of dosers based on a velocity of the exhaust adjacent to each doser. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser and configured to heat the exhaust by oxidizing the injected fuel.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 24, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Ajay Patel, Pradeep K. Ganesan
  • Publication number: 20150059323
    Abstract: A flow restrictor for a secondary air injection system for an internal combustion engine. The flow restrictor includes a main body configured to be located between the intake end and a first injecting end of the supply conduit of the secondary air injection system. The main body defines a restricting orifice configured to reduce propagation of pressure fluctuations between the first injecting end a second injecting end. The main body includes a first connecting portion configured to connect to the supply conduit proximal to the intake end and a second connecting portion configured to connect to the supply conduit proximal to the first injecting end.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicants: DENSO CORPORATION, DENSO International America, Inc.
    Inventor: Paolo Guidi
  • Patent number: 8966887
    Abstract: A mixer for an exhaust aftertreatment system is disclosed. The mixer includes a body portion that is configured to be disposed in an exhaust conduit of an exhaust aftertreatment system upstream of an exhaust aftertreatment device. The mixer also includes an airfoil portion that is disposed on the body portion and reversibly movable between a deployed position and a retracted position, wherein in the deployed position the airfoil portion provides a deployed resistance to an exhaust gas flow and in the retracted position provides a retracted resistance thereto, and the deployed resistance is greater than the retracted resistance, the body portion and airfoil portion comprising a mixer. The mixer further includes a bimetallic couple that is operatively joined to the mixer and configured to reversibly move the airfoil portion from the retracted position to the deployed position.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: March 3, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Yong Miao, Paolo Di Martino
  • Publication number: 20150052877
    Abstract: An engine system, comprising an externally filled fuel tank with an external fill port; a separator for separation of fuel based on octane level, the separator having a high octane outlet and a low octane outlet; a secondary fuel tank with an amount of fuel located therein and a return line, the secondary fuel tank fluidically coupled to the low octane outlet of the separator and the return line fluidically coupling the externally filled fuel tank to the high octane outlet of the separator or the secondary fuel tank fluidically coupled to the high octane outlet of the separator and the return line fluidically coupling the externally filled fuel tank to the low octane outlet of the separator.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: Ford Global Technologies, LLC
    Inventor: Thomas G. Leone
  • Patent number: 8938954
    Abstract: An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. The mixing can be achieved at least in part by a swirl structure and contaminant removal can include NOx reduction.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 27, 2015
    Assignee: Donaldson Company, Inc.
    Inventors: Korneel De Rudder, Stéphane Le Merdy, Jeffrey Curtis Gillen
  • 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
  • Patent number: 8910470
    Abstract: An exhaust system in an engine is provided. The exhaust system includes an exhaust manifold include at least one exhaust runner having an inlet and a flow rotation element including at least one vane, the flow rotation element positioned in the inlet of the exhaust runner swirling exhaust airflow entering the exhaust runner.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: December 16, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohammad Ali Moetakef, Steve Poe, Abdullahi Hajiabdi
  • Patent number: 8904770
    Abstract: A mixing and/or evaporating device (12) for an exhaust system (5) of a combustion engine (1), in particular of a motor vehicle, includes a support body which encloses a cross section of the device (12) through which a flow can flow and which runs transversely to the axial direction (20) of the device (12) in the circumferential direction. The support body (19) has at least one guide blade (25, 28) which extends away transversely to the axial direction (20). An improved efficiency is obtained with the guide blade (25) having a roof-shaped profile (29), including two guide surfaces (30, 31) that are interconnected via a ridge (32) or apex.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: December 9, 2014
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Sebastian Leicht, Felix Neumann, Benjamin Arlt, Oleksandr Semenov, Silvia Calvo, Joachim Braun, Tobias Wolf
  • Patent number: 8899026
    Abstract: Arrangement for introducing a liquid medium into exhaust gases from a combustion engine, having a mixing duct, an injector for injecting the liquid medium into the mixing duct, and an inlet duct situated upstream of the mixing duct. The inlet duct has a first duct section which is annular in cross-section and a second duct section which is annular in cross-section. The second duct section is situated downstream of the first duct section and surrounds the mixing duct. The first duct section surrounds the second duct section. The mixing duct further has a flow reversal section via which an annular outlet of the first duct section is connected to an annular inlet of the second duct section and which is configured to reverse the direction of flow of the exhaust gases flowing through the inlet duct, to flow through the second duct section in a direction opposite to that of the exhaust gases in the first duct section.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: December 2, 2014
    Assignee: Scania CV AB (Publ)
    Inventors: Peter Loman, Daniel Norling
  • Patent number: 8875504
    Abstract: A mixing device includes: a cylindrical portion having a blade provided inside thereof for mixing exhaust gas that flows inside of an exhaust pipe of an internal combustion engine, with an additive sprayed into the exhaust pipe by an adding valve; a flange having an insertion hole, into which the cylindrical portion is inserted, and extending outward in a radial direction of the cylindrical portion from an outer peripheral surface of the cylindrical portion; and a plurality of supporting portions that are provided on the flange and that support the cylindrical portion, wherein each of the supporting portions includes an extending piece that extends in a circumferential direction of the cylindrical portion from a base end portion connected to the flange.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: November 4, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Tomihisa Tsuchiya, Shoichi Maeda
  • Patent number: 8875492
    Abstract: An exhaust pipe injection control device for controlling an appropriate fuel injection amount regardless of engine rotation speed. The exhaust pipe injection control device includes: a target injection amount setting unit which sets, according to an engine rotation speed and an exhaust gas flow rate, a target injection amount that is injected in a single injection from an exhaust pipe injector; a base pulse width (“BPW”) map in which a fuel injection time of the exhaust pipe injector is set so that, with respect to the target injection amount and an exhaust pipe injection fuel pressure, fuel in the target injection amount is injected; and an exhaust pipe injection executing unit which performs injection from the exhaust pipe injector by referring to the BPW map based on the target injection amount and the exhaust pipe injection fuel pressure.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: November 4, 2014
    Assignee: Isuzu Motors Limited
    Inventors: Naofumi Ochi, Tetsuya Murata, Takao Onodera
  • 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.
  • Publication number: 20140238004
    Abstract: The invention uses a car's speed to gather ambient air in an air accumulator to create a fast-moving flow of that air and injecting that air to the exhaust piping in a direction to assist exhaust motion away from the engine.
    Type: Application
    Filed: April 27, 2014
    Publication date: August 28, 2014
    Inventor: Smith Smith
  • Patent number: 8770325
    Abstract: A bulldozer is provided with an engine, a pump assembly, an engine auxiliary, and a connecting member. The engine has an output axis which extends in a front and back direction of the bulldozer. The pump assembly includes a plurality of hydraulic pumps. The hydraulic pumps are disposed behind the engine and are disposed to line up with each other in the front and back direction. The pump assembly is connected to the engine. The engine auxiliary is disposed behind the engine and is mounted to the engine. The connecting member connects the engine and the engine auxiliary.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: July 8, 2014
    Assignee: Komatsu Ltd.
    Inventors: Souichirou Kinoshita, Akira Kotani
  • Patent number: 8769929
    Abstract: Various systems and methods are described for controlling a NOx sensor coupled to an engine exhaust system in a motor vehicle. One example method comprises generating an offset of the sensor based on an ambient air flow drawn into the exhaust system, the ambient air flow having circumvented cylinders of the engine, and adjusting an output of the sensor based on the generated offset.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: July 8, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: David Charles Weber
  • Publication number: 20140157764
    Abstract: A system includes a main engine operating on gaseous fuel from a tank. An auxiliary engine operates using gaseous fuel vented from the tank. A first exhaust passage receives a first stream of exhaust gas from the main engine. A second exhaust passage receives exhaust gas from the auxiliary engine, which passes through an ammonia-producing catalyst. A third exhaust passage is fluidly connected to the first and second exhaust passages and routes exhaust gas through a NOx reducing catalyst. The system operates such that a mass flow of ammonia generated by the ammonia-producing catalyst substantially matches a total mass flow of NOx gas in the third exhaust passage that is treated within the ammonia-producing catalyst.
    Type: Application
    Filed: December 10, 2012
    Publication date: June 12, 2014
    Applicant: CATERPILLAR INC.
    Inventor: Cory A. Brown
  • Patent number: 8745975
    Abstract: Embodiments of the invention are directed to an exhaust system for a combustion engine with a bent pipe section conducting an exhaust gas flow. The exhaust system further includes an injector for introducing a liquid reduction agent into the exhaust gas flow, which is connected to the pipe section via a connecting pipe so that the injector can introduce the reduction agent through the connecting pipe into an introduction region of the pipe section into the exhaust gas flow. The risk of a crystallization of the reduction agent can be reduced with a return flow plate, which in the pipe section is arranged upstream of the introduction region.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: June 10, 2014
    Assignee: Bosch Emission Systems GmbH & Co. KG
    Inventors: Chaiwat Jaruvatee, Florian Kortendiek, Christoph Lauzansky
  • Patent number: 8745978
    Abstract: In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: June 10, 2014
    Assignee: Renault Trucks
    Inventors: Michel Vanvolsem, Julien Ampere
  • Patent number: 8739519
    Abstract: In one example, a system is provided, comprising an exhaust reductant injector upstream of a mixer. The mixer includes a plurality of concentrically smaller rings interconnected via fins having a width varying in a flow direction, the fins arranged annularly, and with a first set of fins between a first pair of adjacent rings angularly offset from a second set of fins between a second pair of adjacent rings, the first and second pairs of rings sharing one common ring. In this way, it is possible to atomize, redirect, and mix the exhaust flow over a short distance to effectively react with NOx in a downstream SCR catalyst.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 3, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Glenwood Hadden, Terry Jadan
  • Patent number: 8695328
    Abstract: An exhaust purifying apparatus achieving placement of components so as to prevent an increase in the size of the vehicle caused by the placement of the exhaust purifying apparatus while maintaining the performance of the exhaust purifying apparatus by secondary air in a saddle-ride type vehicle. An exhaust purifying apparatus of a saddle-ride vehicle includes a secondary air supply pipe of which one end is connected an exhaust passage of an internal combustion engine. A secondary air control valve is connected with the other end of the secondary air supply pipe for controlling the supply of secondary air to the secondary air supply pipe. An outdoor air introduction passage is connected to the secondary air control valve, wherein an air filter for secondary air and a resonant passage are installed in the middle of the outdoor air introduction passage.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 15, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takahiko Shimizu, Makoto Mitsukawa, Kuniharu Kimura, Takatoshi Tatsumi
  • Patent number: 8683791
    Abstract: The present invention relates to a method and system for homogenizing exhaust from an engine. In one embodiment, the present invention includes an automobile. The automobile can include a fuel delivery unit, an engine, an exhaust system, and a control unit. The exhaust system can include a swirl inducement unit, multiple sensors, and multiple catalytic converters. The swirl inducement unit can homogenize an exhaust from the engine. The swirl inducement unit can include a plurality of vanes and/or a plurality of protrusions. The protrusions can be a plurality of bumps and/or a plurality of semi-circular rings. The plurality of vanes can be rotatable with the rotation of the vanes being controlled by the control unit. The rotation of the vanes can be based on an operating condition of the engine.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: April 1, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: James M. Crane
  • Patent number: 8661803
    Abstract: An exhaust diluting and diffusing apparatus includes a first pipe forming a vertically directed outlet for an exhaust conduit and a second diffuser pipe mounted to receive an exhaust gas flow from the outlet of the first pipe, the second pipe having a diameter greater than the diameter of the first pipe to define an ambient air inlet gap surrounding the outlet of the first pipe, and being sufficiently wide to allow the exhaust gas to expand and diffuse in the second pipe. The device further includes a dispersing outlet mounted at an end of the second pipe and configured to direct exhaust gas radially outward, an area defined by the diffuser outlet being greater than an area of the outlet of the first pipe.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: March 4, 2014
    Assignee: Mack Trucks, Inc.
    Inventors: John Sponsky, Edward M Smith, III
  • Patent number: 8661798
    Abstract: A vehicle exhaust system includes an air entrainment component that is used to reduce exhaust gas temperatures exiting the vehicle exhaust system. The air entrainment component includes an exhaust pipe with a non-circular cross-section at one end and an overlap tube that substantially surrounds the non-circular cross-section to form an air gap between the exhaust pipe and the overlap tube. Cooling external air is drawn into the air gap to cool heated exhaust gases within the exhaust pipe.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: March 4, 2014
    Assignee: Faurecia Emissions Control Technologies
    Inventor: David M. Prather
  • Publication number: 20140053539
    Abstract: An exhaust treatment system including an exhaust passage in communication with an engine that produces an exhaust. An exhaust canister is coupled to the exhaust passage, and the exhaust canister supports a plurality of exhaust treatment components therein for treating the exhaust, wherein exhaust canister is removable from the exhaust passage, and the exhaust treatment components are removable from the exhaust canister.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Inventors: Michael Golin, Dan Owen, Tanay Mutha, Keith Olivier
  • Patent number: 8632741
    Abstract: A system and method according to which exhaust is directed from a stationary exhaust source and through a burner, and a combustible fluid is vented from at least one combustible fluid source other than the stationary exhaust source. The combustible fluid is captured and directed to flow from the combustible fluid source and towards the burner, and at least air is mixed with the captured combustible fluid to form a mixture. The mixture is introduced into the burner and burned therein to thereby pre-heat the exhaust flowing therethrough. The pre-heated exhaust contacts a catalyst.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: January 21, 2014
    Assignee: Dresser-Rand Company
    Inventors: Jon K. Tice, Loran Novacek
  • Publication number: 20130340417
    Abstract: An exhaust system for an agricultural vehicle is provided that includes a mixer configured to receive a spray of diesel exhaust fluid along a longitudinal axis of the mixer and an exhaust flow along a direction cross-wise to the longitudinal axis of the mixer. Additionally, the mixer is configured to mix the diesel exhaust fluid with the exhaust gas. Furthermore, the mixer is configured to discharge the exhaust gas along the longitudinal axis of the mixer.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 26, 2013
    Inventors: Daniel Alan Morey, Kain Knowles, Rajeshwar Reddy Adupala, Panos Tamamidis, John William Campbell
  • Patent number: 8601800
    Abstract: The present invention provides an automotive exhaust system that removes harmful contaminants from engine exhaust and thus reduces air pollution, presents a number of distinct and significant benefits and advantages. Foremost, the Green Muffler subjects engine exhaust gases to a two-stage cleansing and purification process, first scrubbing the gases in a recirculating air-and-water bath; and then combining the remnant gases with an air-freshening chemical before release to the atmosphere. The Green Muffler, then, serves to lower a vehicle's carbon-dioxide and carbon-monoxide emissions and thereby reduces the level of air pollution and atmospheric warming due to car exhaust. Further, the Green Muffler reduces the temperature of vehicle exhaust, another plus for the planet.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: December 10, 2013
    Inventor: Akinobu Ojima
  • Patent number: 8584451
    Abstract: A liquid additive agent added into an exhaust gas is suppressed from adhering to a sensor. Provision is made for a sensor that is arranged in an exhaust passage of an internal combustion engine; an addition valve that is arranged in the vicinity of or at the downstream side of the sensor in the direction of flow of the exhaust gas, and adds an additive agent into the exhaust passage; a catalyst that is arranged at the downstream side of the addition valve, and receives a supply of the additive agent from the addition valve; and pressure difference generation unit that makes a pressure of the exhaust gas in the surrounding of the sensor higher than a pressure thereof in the surrounding of the addition valve. A pressure difference is caused to generate so that the additive agent is suppressed from flowing toward the direction of the sensor.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: November 19, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kazuhiro Itoh
  • Publication number: 20130276632
    Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 24, 2013
    Inventors: Roddie R. JUDKINS, Brian L. BISCHOFF, Melanie Moses DEBUSK, Chaitanya NARULA
  • Patent number: 8555626
    Abstract: The present invention provides an exhaust cooler mounted to a tailpipe for receiving exhaust gas. The exhaust cooler includes a jet pump connectable to the tailpipe and a nozzle connectable to the tailpipe. The nozzle defines a nozzle opening between the tailpipe and the jet pump for communicating the exhaust gas from the tailpipe to the jet pump. A first throttle member is included that is moveable between a closed position and an open position, the open position defining a first opening between the tailpipe and the jet pump for communicating the exhaust gas from the tailpipe to the jet pump.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 15, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Jianwen Li, Rahul Mital
  • Patent number: 8549850
    Abstract: According to one representative embodiment, an aspirator for cooling exhaust gas from an internal combustion engine includes a nozzle section, an expansion section, and an air entrainment section. The nozzle section is communicable in exhaust receiving communication with the internal combustion engine. The nozzle section includes a plurality of nozzles through which an exhaust gas stream is flowable. The expansion section is communicable in exhaust receiving communication with the plurality of nozzles. The air entrainment section is communicable in air supplying communication with the expansion section. The air is mixable with the exhaust gas within the expansion section.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: October 8, 2013
    Assignee: Cummins Filtration IP, Inc.
    Inventors: Arun Janakiraman, Shiming Feng
  • Patent number: 8544259
    Abstract: An exhaust purification system of an internal combustion engine is provided with an exhaust treatment device which purifies exhaust, a fuel feed device which is arranged at an upstream side from the exhaust treatment device and which feeds fuel to the engine exhaust passage, an ignition device which causes fuel which is fed from the fuel feed device to ignite, and a flow regulating device which regulates the flow rate of exhaust gas which flows toward the ignition device. The fuel feed device is formed so as to feed liquid fuel. The system has an operating region in which due to the fuel which is fed to the engine exhaust passage burning, backflow of the exhaust gas occurs. Fuel is made to burn in the operating region. Further control is performed to make the flow rate of the exhaust gas increase during the period from when combustion of fuel should be started to when combustion of the fuel ends.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 1, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenichi Tsujimoto, Mikio Inoue
  • Patent number: 8511072
    Abstract: An apparatus for separating a liquid from a mixed gas stream can include a wall, a mixed gas stream passageway, and a liquid collection assembly. The wall can include a first surface, a second surface, and a plurality of capillary condensation pores. The capillary condensation pores extend through the wall, and have a first opening on the first surface of the wall, and a second opening on the second surface of the wall. The pore size of the pores can be between about 2 nm to about 100 nm. The mixed gas stream passageway can be in fluid communication with the first opening. The liquid collection assembly can collect liquid from the plurality of pores.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: August 20, 2013
    Assignee: UT-Battelle, LLC
    Inventors: Roddie R. Judkins, Brian L. Bischoff, Melanie Moses Debusk, Chaitanya Narula