Patents by Inventor Matthew T. Wolk
Matthew T. Wolk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11821389Abstract: A system for introducing a gaseous fuel to an internal combustion engine includes a fuel storage device, a compressor, and an air and fuel conduit in fluid communication with the fuel storage device and with the compressor. The air and fuel conduit includes a first passage and a second passage that includes a first portion and a second portion, the second portion being a venturi portion, the second passage being fluidly connected to the compressor in parallel with the first passage.Type: GrantFiled: August 20, 2021Date of Patent: November 21, 2023Assignee: Caterpillar Inc.Inventor: Matthew T. Wolk
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Patent number: 11732629Abstract: Systems, apparatuses, assemblies, and methods for diesel exhaust fluid (DEF) dosing can include a body defining an injector adaptor inlet and an injector adaptor outlet; and an injector mount or interface extending from the body. The injector mount can be between the first and second ends of the injector adaptor. The injector adaptor outlet can define an area greater than an area of the injector adaptor inlet. In a side view of the injector adaptor, at a bottom side of the body, a first straight line can extend along the body from the injector adaptor inlet to the injector adaptor outlet, and at a top side of the body opposite the bottom side, a second straight line can extend along the body from the injector adaptor inlet to the injector adaptor outlet. The second straight line can be at an acute angle relative to the first straight line.Type: GrantFiled: May 10, 2022Date of Patent: August 22, 2023Assignee: Caterpillar Inc.Inventors: Yong Yi, Karthick Govindan, Taeyoung Kim, Matthew T. Wolk
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Publication number: 20230054901Abstract: A system for introducing a gaseous fuel to an internal combustion engine includes a fuel storage device, a compressor, and an air and fuel conduit in fluid communication with the fuel storage device and with the compressor. The air and fuel conduit includes a first passage and a second passage that includes a first portion and a second portion, the second portion being a venturi portion, the second passage being fluidly connected to the compressor in parallel with the first passage.Type: ApplicationFiled: August 20, 2021Publication date: February 23, 2023Applicant: Caterpillar Inc.Inventor: Matthew T. WOLK
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Patent number: 11326504Abstract: A system including a cooling fan, an actuator with an actuator temperature sensor, and a controller is disclosed. The controller may be configured to receive temperature data from the actuator temperature sensor. The temperature data may include information relating to an actuator temperature of the actuator. The controller may be configured to compare the actuator temperature with a temperature threshold associated with the actuator, and control the cooling fan to adjust the actuator temperature based on determining that the actuator temperature satisfies the temperature threshold.Type: GrantFiled: December 23, 2019Date of Patent: May 10, 2022Assignee: Caterpillar Inc.Inventors: Matthew T. Wolk, Samuel Were, James Mutti, Brian P. Brennan
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Patent number: 11156143Abstract: An aftertreatment system for treating exhaust gases from an internal combustion engine includes, in series, a diesel oxidation catalyst (DOC), a diesel particular filter (DPF) downstream the DOC, and a primary selective catalyst reduction (SCR) catalyst downstream the DPF. A supplemental SCR catalyst is disposed upstream the DOC, DPF, and primary SCR catalyst to receive raw exhaust gases from the internal combustion engine. The supplemental SCR catalyst may conduct an SCR reaction on the raw exhaust gases until the supplemental SCR catalyst reaches a reaction temperature, at which time the supplemental SCR catalyst may conduct the SCR reaction.Type: GrantFiled: October 28, 2019Date of Patent: October 26, 2021Assignee: Caterpillar Inc.Inventors: Wade J. Robel, Matthew T. Wolk
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Patent number: 11098636Abstract: A turbocharger having a turbine housing including an outer surface and an inner surface defining an exhaust passage, an exhaust inlet port in fluid communication with the exhaust passage, and a tucked exhaust inlet flange surrounding the exhaust inlet port, the exhaust inlet flange including a plurality of bolt holes arranged in a trapezoid shaped bolt pattern.Type: GrantFiled: December 18, 2019Date of Patent: August 24, 2021Assignee: Caterpillar Inc. Joint OCInventors: Matthew T. Wolk, Vikas Bhupendra Sheth
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Publication number: 20210189942Abstract: A turbocharger having a turbine housing including an outer surface and an inner surface defining an exhaust passage, an exhaust inlet port in fluid communication with the exhaust passage, and a tucked exhaust inlet flange surrounding the exhaust inlet port, the exhaust inlet flange including a plurality of bolt holes arranged in a trapezoid shaped bolt pattern.Type: ApplicationFiled: December 18, 2019Publication date: June 24, 2021Applicant: Caterpillar Inc.Inventors: Matthew T. Wolk, Vikas Bhupendra Sheth
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Publication number: 20210189944Abstract: A system including a cooling fan, an actuator with an actuator temperature sensor, and a controller is disclosed. The controller may be configured to receive temperature data from the actuator temperature sensor. The temperature data may include information relating to an actuator temperature of the actuator. The controller may be configured to compare the actuator temperature with a temperature threshold associated with the actuator, and control the cooling fan to adjust the actuator temperature based on determining that the actuator temperature satisfies the temperature threshold.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Applicant: Caterpillar Inc.Inventors: Matthew T. WOLK, Samuel WERE, James MUTTI, Brian P. BRENNAN
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Publication number: 20210123366Abstract: An aftertreatment system for treating exhaust gases from an internal combustion engine includes, in series, a diesel oxidation catalyst (DOC), a diesel particular filter (DPF) downstream the DOC, and a primary selective catalyst reduction (SCR) catalyst downstream the DPF. A supplemental SCR catalyst is disposed upstream the DOC, DPF, and primary SCR catalyst to receive raw exhaust gases from the internal combustion engine. The supplemental SCR catalyst may conduct an SCR reaction on the raw exhaust gases until the supplemental SCR catalyst reaches a reaction temperature, at which time the supplemental SCR catalyst may conduct the SCR reaction.Type: ApplicationFiled: October 28, 2019Publication date: April 29, 2021Applicant: Caterpillar Inc.Inventors: Wade J. Robel, Matthew T. Wolk
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Patent number: 10690092Abstract: An engine system includes an engine including a plurality of engine cylinders, an intake manifold, and an exhaust manifold; and a compound turbocharger system having a first turbine driving a first compressor, and a second turbine driving a second compressor. The engine system further includes an intake line including the first compressor, the second compressor, and the at least one intake manifold; and an exhaust line including the exhaust manifold, the second turbine, and the first turbine. The engine system also includes an exhaust restriction valve located in the exhaust manifold of the engine downstream of a subset of the plurality of the engine cylinders; and an exhaust gas recirculation line having an upstream end located to receive exhaust from the subset of the plurality of engine cylinders, and a downstream end coupled to the intake line downstream the first compressor and upstream of the second compressor.Type: GrantFiled: April 12, 2018Date of Patent: June 23, 2020Assignee: Caterpillar Inc.Inventor: Matthew T. Wolk
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Publication number: 20190316548Abstract: An engine system includes an engine including a plurality of engine cylinders, an intake manifold, and an exhaust manifold; and a compound turbocharger system having a first turbine driving a first compressor, and a second turbine driving a second compressor. The engine system further includes an intake line including the first compressor, the second compressor, and the at least one intake manifold; and an exhaust line including the exhaust manifold, the second turbine, and the first turbine. The engine system also includes an exhaust restriction valve located in the exhaust manifold of the engine downstream of a subset of the plurality of the engine cylinders; and an exhaust gas recirculation line having an upstream end located to receive exhaust from the subset of the plurality of engine cylinders, and a downstream end coupled to the intake line downstream the first compressor and upstream of the second compressor.Type: ApplicationFiled: April 12, 2018Publication date: October 17, 2019Applicant: Caterpillar Inc.Inventor: Matthew T. WOLK
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Publication number: 20150377108Abstract: A dual fuel engine system is provided. The dual fuel engine system includes a dual fuel engine. The dual fuel engine system also includes a turbocharger connected to the dual fuel engine having a turbine portion and a compressor portion. The dual fuel engine system further includes a methane reduction module positioned downstream of the turbocharger. The methane reduction module is configured to receive a flow of exhaust gas from the turbine portion of the turbocharger. The methane reduction module includes a combustor. The methane reduction module is adapted to increase a temperature of the exhaust gas flow received from the turbine portion of the turbocharger. The methane reduction module is also adapted to combust methane constituents present in the exhaust gas based on the increase in the temperature.Type: ApplicationFiled: September 4, 2015Publication date: December 31, 2015Applicant: Caterpillar Inc.Inventors: Scott B. Fiveland, Douglas A. Rebinsky, Matthew T. Wolk
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Patent number: 9157396Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.Type: GrantFiled: May 17, 2013Date of Patent: October 13, 2015Assignee: Caterpillar Inc.Inventors: Christopher Lusardi, Richard W. Kruiswyk, Kerry A. Delvecchio, Matthew T. Wolk, Rohan Swar, Carl-Anders Hergart
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Publication number: 20140338328Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.Type: ApplicationFiled: May 17, 2013Publication date: November 20, 2014Applicant: Caterpillar Inc.Inventors: Christopher Lusardi, Richard W. Kruiswyk, Kerry A. Delvecchio, Matthew T. Wolk, Rohan Swar, Carl-Anders Hergart
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Patent number: 8499555Abstract: A valve for use with a turbocharger is disclosed. The valve may have a valve element movable to selectively direct a flow of fluid. They valve may also have a control portion connected to move the valve element, and a cooling portion configured to receive a pressurized cooling medium from the turbocharger.Type: GrantFiled: August 21, 2008Date of Patent: August 6, 2013Assignee: Caterpillar Inc.Inventors: Matthew T. Wolk, Thomas A. Bevill, Terry W. Grabb, Mehdi Mahssini, Paul M. Himmell
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Publication number: 20100043429Abstract: A valve for use with a turbocharger is disclosed. The valve may have a valve element movable to selectively direct a flow of fluid. They valve may also have a control portion connected to move the valve element, and a cooling portion configured to receive a pressurized cooling medium from the turbocharger.Type: ApplicationFiled: August 21, 2008Publication date: February 25, 2010Inventors: Matthew T. Wolk, Thomas A. Bevill, Terry W. Grabb, Mehdi Mahssini, Paul M. Himmell