Patents by Inventor Robert G. SPERRY
Robert G. SPERRY 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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Publication number: 20240011451Abstract: A piston can include a skirt, a crown, and a cooling gallery. The skirt can have an upper body portion. The crown can be formed at the upper body portion. A wall can be formed underneath the crown so as to define a cooling gallery within the piston. The cooling gallery includes cooling gallery peripheral portion and a cooling gallery central portion. The cooling gallery can be configured to receive and to retain an amount of cooling fluid and to cause movement thereof within the cooling gallery between a cooling gallery peripheral portion and a cooling gallery central portion as the piston travels between top dead center and bottom dead center so as to cool both the piston outer region and the piston center region.Type: ApplicationFiled: December 3, 2021Publication date: January 11, 2024Inventor: Robert G. Sperry
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Publication number: 20230399994Abstract: A method for finishing at least one port within a cylinder of a two-stroke engine, comprising tracing a curvature of an existing port hole for the at least one port using a force sensing tool, wherein forming an engine block for a two-stroke engine, comprising: casting the engine block, wherein the cast engine block includes at least one intake port and at least one exhaust port; rough machining a cylinder of the engine block, wherein at least one of the at least one intake port and the at least one exhaust port is positioned along a wall of the cylinder and both of the at least one intake port and the at least one exhaust port are fluidly coupled to the cylinder; and finishing an edge of at least one of the at least one intake port and the at least one exhaust port to provide a smooth surface.Type: ApplicationFiled: October 8, 2021Publication date: December 14, 2023Inventors: Robert G. Sperry, Jordan E. Kelleher, Jeffrey A. Wheitner, Jeffrey D. Olmstead, Myron T. Rickard, David J. Eckroth
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Patent number: 11691120Abstract: An exhaust gas aftertreatment system includes a housing assembly and a reductant delivery system. The housing assembly includes an upstream housing, a first inlet tube, a second inlet tube, and a mixing housing. The first inlet tube is coupled to the upstream housing and configured to receive a first portion of exhaust gas from the upstream housing. The second inlet tube is coupled to the upstream housing and configured to receive a second portion of the exhaust gas from the upstream housing. The mixing housing is coupled to the first inlet tube and the second inlet tube. The mixing housing is configured to receive the first portion of the exhaust gas from the first inlet tube and receive the second portion of the exhaust gas from the second inlet tube. The mixing housing is separated from the upstream housing by the first inlet tube and the second inlet tube.Type: GrantFiled: December 20, 2021Date of Patent: July 4, 2023Assignee: CUMMINS EMISSION SOLUTIONS INC.Inventors: Robert G. Sperry, Chetan Kishorrao Chawane, Karan Shaileshkumar Chinaiwala, Enoch Nanduru
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Publication number: 20230191358Abstract: An exhaust gas aftertreatment system includes a housing assembly and a reductant delivery system. The housing assembly includes an upstream housing, a first inlet tube, a second inlet tube, and a mixing housing. The first inlet tube is coupled to the upstream housing and configured to receive a first portion of exhaust gas from the upstream housing. The second inlet tube is coupled to the upstream housing and configured to receive a second portion of the exhaust gas from the upstream housing. The mixing housing is coupled to the first inlet tube and the second inlet tube. The mixing housing is configured to receive the first portion of the exhaust gas from the first inlet tube and receive the second portion of the exhaust gas from the second inlet tube. The mixing housing is separated from the upstream housing by the first inlet tube and the second inlet tube.Type: ApplicationFiled: December 20, 2021Publication date: June 22, 2023Applicant: Cummins Emission Solutions Inc.Inventors: Robert G. Sperry, Chetan Kishorrao Chawane, Karan Shaileshkumar Chinaiwala, Enoch Nanduru
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Patent number: 11619150Abstract: A storage reservoir for an internal combustion engine is provided that includes a plurality of vents connected to an air compartment that outlets air from the storage reservoir. The storage reservoir can remain vented to supply of lubrication fluid even if the internal combustion engine is inclined due to operation along severe grades.Type: GrantFiled: June 1, 2021Date of Patent: April 4, 2023Assignee: Cummins Inc.Inventor: Robert G. Sperry
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Patent number: 11555469Abstract: The present disclosure provides piston, comprising: a skirt having an upper body portion; a crown formed at the upper body portion; and a piston bowl formed at the crown. The piston bowl includes a first combustion surface and a second combustion surface opposite the first combustion surface. Each of the first combustion surface and the second combustion surface are formed and positioned to accommodate inflowing injector spray so as to reduce heat transfer caused by impingements made by the inflowing injector spray.Type: GrantFiled: May 6, 2021Date of Patent: January 17, 2023Assignees: CUMMINS INC., ACHATES POWER, INC.Inventors: Florin Mocanu, Eric M. Osecky, Robert G. Sperry, John M. Deur
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Publication number: 20220381168Abstract: A storage reservoir for an internal combustion engine is provided that includes a plurality of vents connected to an air compartment that outlets air from the storage reservoir. The storage reservoir can remain vented to supply of lubrication fluid even if the internal combustion engine is inclined due to operation along severe grades.Type: ApplicationFiled: June 1, 2021Publication date: December 1, 2022Inventor: Robert G. Sperry
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Patent number: 11415075Abstract: A cylinder having at least one intake port and at least one exhaust port, wherein the at least one intake port includes an upper surface and a lower surface, the upper surface of the intake port having an entrance portion and an outlet portion, the upper surface arced from the entrance portion to the outlet portion.Type: GrantFiled: July 7, 2020Date of Patent: August 16, 2022Assignees: CUMMINS INC., ACHATES POWER, INC.Inventors: Randall L. Zehr, Robert G. Sperry
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Patent number: 11402020Abstract: The present disclosure provides a piston for an internal combustion engine, the piston having a piston body including a first bearing saddle defining a first axis and a second bearing saddle defining a second axis, the first axis being parallel to and spaced from the second axis. A bearing is also provided, the bearing having a first journal having a first body, longitudinal ends, and lateral edges, the first journal defining a first axis, the first journal disposed about approximately 180 degrees of the first axis and a second journal having a second body and defining a second axis, the second journal disposed about approximately 180 degrees of the second axis, the second journal operable to be positioned abutting one of the lateral edges of the first journal when the first and second journals are positioned with the piston.Type: GrantFiled: December 17, 2020Date of Patent: August 2, 2022Assignees: CUMMINS INC., ACHATES POWER, INC.Inventors: Kevin C. Augustin, Sr., Florin Mocanu, Eric M. Osecky, Robert G. Sperry
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Publication number: 20210404414Abstract: The present disclosure provides piston, comprising: a skirt having an upper body portion; a crown formed at the upper body portion; and a piston bowl formed at the crown. The piston bowl includes a first combustion surface and a second combustion surface opposite the first combustion surface. Each of the first combustion surface and the second combustion surface are formed and positioned to accommodate inflowing injector spray so as to reduce heat transfer caused by impingements made by the inflowing injector spray.Type: ApplicationFiled: May 6, 2021Publication date: December 30, 2021Inventors: Florin Mocanu, Eric M. Osecky, Robert G. Sperry, John M. Deur
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Patent number: 11143149Abstract: The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.Type: GrantFiled: August 31, 2016Date of Patent: October 12, 2021Assignee: Cummins Inc.Inventors: Robert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
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Publication number: 20210270367Abstract: The present disclosure provides a piston for an internal combustion engine, the piston having a piston body including a first bearing saddle defining a first axis and a second bearing saddle defining a second axis, the first axis being parallel to and spaced from the second axis. A bearing is also provided, the bearing having a first journal having a first body, longitudinal ends, and lateral edges, the first journal defining a first axis, the first journal disposed about approximately 180 degrees of the first axis and a second journal having a second body and defining a second axis, the second journal disposed about approximately 180 degrees of the second axis, the second journal operable to be positioned abutting one of the lateral edges of the first journal when the first and second journals are positioned with the piston.Type: ApplicationFiled: December 17, 2020Publication date: September 2, 2021Inventors: Kevin C. Augustin, SR., Florin Mocanu, Eric M. Osecky, Robert G. Sperry
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Patent number: 11098681Abstract: The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.Type: GrantFiled: May 6, 2020Date of Patent: August 24, 2021Assignee: Cummins Inc.Inventors: Robert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
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Patent number: 11047334Abstract: An air intake system is provided that supplies charge air to multiple cylinders in an in-line configuration in an uniflow-scavenged, two-stroke opposed-piston engine. The engine is configured such that the intake ports of the cylinders are situated in one intake chamber within the engine block. The air intake chamber includes a feature to balance the mass of air that reaches the intake port of each cylinder in the engine.Type: GrantFiled: November 12, 2019Date of Patent: June 29, 2021Assignee: Achates Power, Inc.Inventors: Robert G. Sperry, James R. Shaw
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Publication number: 20210140389Abstract: An air intake system is provided that supplies charge air to multiple cylinders in an in-line configuration in an uniflow-scavenged, two-stroke opposed-piston engine. The engine is configured such that the intake ports of the cylinders are situated in one intake chamber within the engine block. The air intake chamber includes a feature to balance the mass of air that reaches the intake port of each cylinder in the engine.Type: ApplicationFiled: November 12, 2019Publication date: May 13, 2021Applicant: ACHATES POWER, INCInventors: ROBERT G. SPERRY, James R. Shaw
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Publication number: 20210010442Abstract: A cylinder having at least one intake port and at least one exhaust port, wherein the at least one intake port includes an upper surface and a lower surface, the upper surface of the intake port having an entrance portion and an outlet portion, the upper surface arced from the entrance portion to the outlet portion.Type: ApplicationFiled: July 7, 2020Publication date: January 14, 2021Inventors: Randall L. Zehr, Robert G. Sperry
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Publication number: 20200263642Abstract: The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.Type: ApplicationFiled: May 6, 2020Publication date: August 20, 2020Inventors: Robert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
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Publication number: 20190219010Abstract: The present disclosure provides air intake ports and/or intake manifolds having an altered configuration to improve the efficiency of the air intake ports, intake manifolds, and by extension, the engine.Type: ApplicationFiled: August 31, 2016Publication date: July 18, 2019Inventors: Robert G. Sperry, Terry D. Partridge, Steven L. Leffler, Kartikeya Tyagi, Amit A. Kulkarni, Pallav Jha
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Patent number: D967863Type: GrantFiled: December 20, 2021Date of Patent: October 25, 2022Assignee: Cummins Emission Solutions Inc.Inventors: Robert G. Sperry, Chetan Kishorrao Chawane, Karan Shaileshkumar Chinaiwala, Enoch Nanduru
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Patent number: D967864Type: GrantFiled: December 20, 2021Date of Patent: October 25, 2022Assignee: Cummins Emission Solutions Inc.Inventors: Robert G. Sperry, Chetan Kishorrao Chawane, Karan Shaileshkumar Chinaiwala, Enoch Nanduru