Patents Examined by Jonathan R Matthias
-
Patent number: 11261777Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: March 1, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
-
Patent number: 11255246Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge exhaust after-treatment system if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: February 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
-
Patent number: 11242793Abstract: A muffler assembly unit for an exhaust system of an internal combustion engine, especially in a vehicle, includes a muffler (42) with a muffler housing (10). The muffler housing (10) is elongated along a longitudinal axis of the housing. A housing jacket (40) encloses the muffler housing (10). At least one air guiding bulge (34) is provided on the housing jacket (40).Type: GrantFiled: January 16, 2019Date of Patent: February 8, 2022Assignee: PUREM GMBHInventors: Ian Barret, Laurent Cazeneuve
-
Patent number: 11242789Abstract: A boiler or other fired vessel includes a housing with a burner at one end, a furnace downstream of the burner, a convection section downstream of the furnace and a flue gas outlet downstream of the convection section. A first means for loading a reducing agent comprising at least two injectors is located downstream of the furnace. A second means for loading a reducing agent is located downstream of the first means for loading a reducing agent. A selective catalytic reduction catalyst is located either downstream of the second means for loading a reducing agent or adjacent the second means for loading a reducing agent such that the catalyst is provided to the boiler or other fired vessel approximately simultaneously with the reducing agent from the second means for loading the reducing agent.Type: GrantFiled: October 22, 2020Date of Patent: February 8, 2022Assignee: R. F. MacDonald Co.Inventors: Michael David MacDonald, Marco Antonio Velasco, Anthony Feliz, Lawrence J. Muzio
-
Patent number: 11236658Abstract: A control device includes a first exhaust temperature calculation part calculating a temperature of exhaust flowing into a PM trapping device as a first exhaust temperature, a second exhaust temperature calculation part calculating a temperature of exhaust flowing out from the PM trapping device as a second exhaust temperature, a rate of change over time calculation part calculating a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and a judgment part judging if the PM trapping device is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: February 1, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
-
Patent number: 11230953Abstract: A heating disk for heating up a stream of exhaust gas and/or a component for exhaust gas aftertreatment has a honeycomb body, wound from a plurality of smooth and corrugated metal layers stacked on top of one another. The honeycomb body is received within a carrier shell and an electrical contact is fed through the carrier shell. The honeycomb body is connected to a current source via the electrical contact. The electrical contact has a contact strip within the carrier shell extending in the circumferential direction of the carrier shell. An insulating region is formed between the carrier shell and the contact strip. A plurality of stacks of layers are electrically insulated from one another. Each of the stacks of layers are formed from the plurality of smooth and corrugated metal layers, and which are arranged directly adjacent to one another and conductively connected to the contact strip.Type: GrantFiled: March 18, 2020Date of Patent: January 25, 2022Assignee: VITESCO TECHNOLOGIES GMBHInventors: Christoph Pabst, Peter Hirth, Ferdi Kurth, Lukas Hort
-
Patent number: 11230959Abstract: In one aspect, an aspiration system for a work vehicle includes an exhaust tube extending along a flow direction from an upstream end to a downstream end. The exhaust tube defines an exhaust passage extending from the upstream end of the exhaust tube to the downstream end of the exhaust tube. The exhaust tube includes a venturi portion. The aspiration system also includes an aspiration tube in flow communication with the venturi portion and configured to receive an aspirated airflow. The system further includes a flow adjustment mechanism provided in operative association with venturi portion such that the flow adjustment mechanism is configured to adjust a cross-sectional flow area of the venturi portion of the exhaust tube.Type: GrantFiled: January 8, 2020Date of Patent: January 25, 2022Assignee: CNH Industrial America LLCInventors: Lorenzo Anthony Gomez, Mark Douglas Klassen
-
Patent number: 11225897Abstract: A vehicle exhaust system includes a tubular component having an inner surface and an outer surface such that the inner surface defines a primary exhaust gas flow path. The tubular component extends along a central axis from an inlet end to an outlet end. The tubular component includes at least one ridge extending at least partly along a circumference of the tubular component. The at least one ridge includes a first portion angularly extending inwardly from the tubular component, and a second portion disposed downstream of the first portion. The second portion angularly extends inwardly from the tubular component. In some cases, the second portion defines a plurality of openings extending therethrough and spaced apart from each other. In some cases, the tubular component defines a plurality of tube openings disposed downstream of the at least one ridge.Type: GrantFiled: July 23, 2019Date of Patent: January 18, 2022Assignee: Tenneco Automotive Operating Company Inc.Inventors: Frederick Michael Baumgartner, Garrick Robert Zuver
-
Patent number: 11220948Abstract: An internal combustion engine emissions reduction system in which a emissions passing through a second catalyst element having a second catalyst function are mixed with emissions passing through a first catalyst element having a first catalyst function.Type: GrantFiled: July 2, 2020Date of Patent: January 11, 2022Inventor: David A Endrigo
-
Patent number: 11215104Abstract: Disclosed is a component having a flange connection element connectable to a flange connection counterpart of another component by bolts and/or screws, the flange connection element comprising a contact surface to be pressed against a contact surface of the flange connection counterpart, whereby the contact surface of the flange connection element is formed such that it does not completely surround at least one of the bolts and/or screws. Alternatively or in addition, the flange connection element may have a recess in at least one of its side surfaces using the contact pressure in an edge part of the contact surface extending below the recess.Type: GrantFiled: February 28, 2018Date of Patent: January 4, 2022Assignee: LIEBHERR-COMPONENTS COLMAR SASInventors: Hugues Winkelmuller, Flavie Brockhoff
-
Patent number: 11215103Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: January 4, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
-
Patent number: 11214139Abstract: There is provided a motorcycle which includes an engine including an exhaust port; an exhaust pipe connected to the exhaust port of the engine; and a catalyst disposed within the exhaust pipe. The exhaust pipe includes a catalyst case accommodating the catalyst, and a pipe connecting the exhaust port of the engine and the catalyst case. The catalyst is disposed in front of the engine. An occupied area of the catalyst in a direction orthogonal to a flow direction of exhaust gas is larger than an opening area of the pipe in a direction orthogonal to a flow direction of exhaust gas. A central axis of the catalyst is inclined with respect to a vehicle width direction in a vehicle front view. And the central axis of the catalyst and a center line of the engine in the vehicle width direction intersect at a position overlapping with the catalyst in the vehicle front view.Type: GrantFiled: February 13, 2020Date of Patent: January 4, 2022Assignee: SUZUKI MOTOR CORPORATIONInventors: Shintaro Yagi, Yasuhito Saiki
-
Patent number: 11208929Abstract: A control device comprises an estimated temperature calculation part calculating an estimated temperature of a conductive base based on an engine operating state, an electrical heating permission judgment part judging if to permit warmup of a catalyst device by electrical heating, and a catalyst warmup control part warming up the catalyst device by electrical heating when electrical heating is permitted and warming up the catalyst device by heat of exhaust discharged from the internal combustion engine when electrical heating is prohibited. The electrical heating permission judgment part prohibits warmup of the catalyst device by electrical heating when it is predicted that the actual temperature of the conductive base has diverged from the estimated temperature, when the estimated temperature is low in reliability, or when it is not possible to calculate the estimated temperature.Type: GrantFiled: November 23, 2020Date of Patent: December 28, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shingo Korenaga
-
Patent number: 11208927Abstract: An aftertreatment component includes an inlet connector tube, an outlet connector tube, a chamber, a flow dissipater, and a substrate. The inlet connector tube receives exhaust gasses. The chamber is between the inlet connector tube and the outlet connector tube. The flow dissipater is positioned around the inlet connector tube and within the chamber. The flow dissipater receives the exhaust gasses from the inlet connector tube and includes a plurality of perforations. The plurality of perforations defines an open area of the flow dissipater. The open area of the flow dissipater is greatest proximate to the inlet connector tube and progressively decreasing proximate to the outlet connector tube. The substrate is positioned within the chamber and receives the exhaust gasses from the flow dissipater and provides the treated exhaust gasses to the outlet connector tube. The exhaust gases are expelled through the flow dissipater via the plurality of perforations.Type: GrantFiled: January 27, 2017Date of Patent: December 28, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Apoorv Kalyankar, Daniel Maciejewski, John G. Buechler, Ryan M. Johnson, Randolph G. Zoran, Achuth Munnannur
-
Patent number: 11199119Abstract: An apparatus includes circuitry configured to calculate a temperature of exhaust flowing into an exhaust after-treatment system as a first exhaust temperature, calculate a temperature of exhaust flowing out from the exhaust after-treatment system as a second exhaust temperature, calculate a rate of change over time of the first exhaust temperature and a rate of change over time of the second exhaust temperature, and judge if the exhaust after-treatment system is in a removed state removed from the exhaust passage based on a difference between the rate of change over time of the first exhaust temperature and the rate of change over time of the second exhaust temperature.Type: GrantFiled: August 13, 2020Date of Patent: December 14, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazumasa Katoh, Takahiko Fujiwara, Kenji Igawa, Kentaro Mineo
-
Patent number: 11193405Abstract: A combined exhaust gas noise silencer consisting of a system of hollow elements with a mutual housing comprising a front face of the silencer connected to the supply pipe of exhaust gases, and a rear face of the silencer with an outlet from the rear face of the silencer, where the original—inlet exhaust gas (?p) carrying a noise wave is divided into at least two flows—an exhaust gas flow (?z) carrying a shifted noise wave with delayed wave length, and an exhaust gas flow (?n) carrying a non-shifted noise wave, which are subsequently combined into a common exhaust gas flow (?s).Type: GrantFiled: November 6, 2016Date of Patent: December 7, 2021Inventors: Zden{hacek over (e)}k Mach, Zde{hacek over (n)}ka Machová
-
Patent number: 11193404Abstract: There is provided a muffler structure of a saddle-type vehicle. The muffler structure is disposed at a downstream side of an exhaust pipe extending from an exhaust port of a cylinder head. A pipe is connected to the exhaust pipe and inserted into a muffler main body. The muffler main body includes a cylindrical portion and a reduced diameter portion joined to a downstream side end portion of the cylindrical portion and having a diameter reduced toward the downstream side thereof. The pipe includes a center pipe passing through the cylindrical portion, and a tail pipe disposed in the reduced diameter portion. An expansion chamber is formed by a space in the reduced diameter portion in the vicinity of the tail pipe.Type: GrantFiled: September 26, 2019Date of Patent: December 7, 2021Assignee: SUZUKI MOTOR CORPORATIONInventors: Takayoshi Muramatsu, Takanori Chino
-
Patent number: 11187131Abstract: A purification device includes an outer housing canning, extending along a longitudinal axis, and in which exhaust gas is configured to circulate A purification unit is housed in the outer housing canning and incorporates at least one inductive element. An inner induction canning is housed in the outer housing canning and surrounds the purification unit, and comprises an induction device configured to induce an electric current in the at least one inductive element. A holding and insulation assembly is housed in the outer housing canning and surrounds the purification unit. The holding and insulation assembly includes at least one of: an inner holding web positioned radially between the inner induction canning and the purification unit, and/or end rings surrounding the purification unit and positioned on either side of the inner induction canning in a longitudinal direction parallel to the longitudinal axis.Type: GrantFiled: May 15, 2020Date of Patent: November 30, 2021Inventors: Jean-Paul Brunel, Bastien Decrouy, Jean- François Perret, Sébastien Hanauer
-
Patent number: 11187127Abstract: An exhaust gas treatment system for an internal combustion engine includes an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine, a first injector configured to selectively introduce a first reductant into the exhaust gas pathway in response to a sensed temperature of the exhaust gas being within a predetermined temperature range, and a first treatment element positioned within the exhaust gas pathway downstream of the first injector. The first treatment element includes a selective catalytic reduction (SCR) layer, a porous filter substrate, and a precious metal catalyst layer. The system also includes a second injector configured to introduce a second reductant into the exhaust gas pathway downstream of the first treatment element and a second treatment element positioned within the exhaust gas pathway downstream of the second injector. The second treatment element includes a SCR element.Type: GrantFiled: June 28, 2019Date of Patent: November 30, 2021Assignee: DEERE & COMPANYInventors: Eric J. Hruby, Ayyappan Ponnaiyan
-
Patent number: 11181024Abstract: The invention relates to method for operating an internal combustion engine that has at least two combustion chambers, of which at least one is operated at a substoichiometric air-fuel ratio and of which at least another is operated at a superstoichiometric air-fuel ratio. The outlet of the internal combustion engine is connected to an exhaust gas system in which a three-way catalytic converter is arranged in the flow direction of an exhaust gas through an exhaust gas channel, and an exhaust gas heat-recovery device is arranged downstream from the three-way catalytic converter.Type: GrantFiled: October 25, 2019Date of Patent: November 23, 2021Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Falk-Christian Baron Von Ceumern-Lindenstjerna, Stefan Paukner, André Horn, Michael Kaack, Thomas Maischik, Asmus Carstensen