Patents by Inventor Andrew P. Perr
Andrew P. Perr 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).
-
Patent number: 11725605Abstract: A cylinder head [20, 120] mountable onto a cylinder block [16] of an engine [10] is disclosed. The cylinder head [20, 120] includes at least one fastener boss [28, 128] configured for receiving a fastener [24], and the cylinder head [20, 120] is securely fastened onto the cylinder block [16] of the engine [10] by the fastener [24]. A boss cutout [30, 130] is formed on a lower portion of the at least one fastener boss [28, 128] that abuts the cylinder block [16] such that a contact pressure balance of sealing pressures around the cylinder block [16] is evenly distributed.Type: GrantFiled: July 28, 2022Date of Patent: August 15, 2023Assignee: CUMMINS INC.Inventors: Dennis King Chan, William Ryan Dougherty, Jeffrey D. Jones, Andrew P. Perr, Andrew Guy Kitchen, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Jr.
-
Publication number: 20230089814Abstract: A cylinder head [20, 120] mountable onto a cylinder block [16] of an engine [10] is disclosed. The cylinder head [20, 120] includes at least one fastener boss [28, 128] configured for receiving a fastener [24], and the cylinder head [20, 120] is securely fastened onto the cylinder block [16] of the engine [10] by the fastener [24]. A boss cutout [30, 130] is formed on a lower portion of the at least one fastener boss [28, 128] that abuts the cylinder block [16] such that a contact pressure balance of sealing pressures around the cylinder block [16] is evenly distributed.Type: ApplicationFiled: July 28, 2022Publication date: March 23, 2023Inventors: Dennis King Chan, William Ryan Dougherty, Jeffrey D. Jones, Andrew P. Perr, Andrew Guy Kitchen, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, JR.
-
Patent number: 11441512Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.Type: GrantFiled: May 4, 2021Date of Patent: September 13, 2022Assignee: Cummins Inc.Inventors: Andrew P. Perr, Robin J. Bremmer, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Jr., Dennis King Chan
-
Patent number: 11326569Abstract: A fuel injector mounting assembly in an opposed-piston engine allows for mounting of a fuel injector in a cylinder block without significantly deforming the wall of the cylinder into which the injector is configured to deliver fuel. The fuel injector mounting assembly includes a clamping arrangement to clamp the fuel injector to the cylinder block, an elongate tubular sleeve that sheathes a nozzle portion of the fuel injector, and a spanner nut attached to the elongate tubular sleeve. Clamping loads applied to retain the fuel injector in the cylinder block are controlled by the spanner nut.Type: GrantFiled: November 25, 2019Date of Patent: May 10, 2022Assignee: Achates Power, Inc.Inventor: Andrew P. Perr
-
Publication number: 20210332774Abstract: A cylinder head [20, 120] mountable onto a cylinder block [16] of an engine [10] is disclosed. The cylinder head [20, 120] includes at least one fastener boss [28, 128] configured for receiving a fastener [24], and the cylinder head [20, 120] is securely fastened onto the cylinder block [16] of the engine [10] by the fastener [24]. A boss cutout [30, 130] is formed on a lower portion of the at least one fastener boss [28, 128] that abuts the cylinder block [16] such that a contact pressure balance of sealing pressures around the cylinder block [16] is evenly distributed.Type: ApplicationFiled: May 15, 2017Publication date: October 28, 2021Inventors: Dennis King Chan, William Ryan Dougherty, Jeffrey D. Jones, Andrew P. Perr, Andrew Guy Kitchen, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Jr.
-
Publication number: 20210254580Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.Type: ApplicationFiled: May 4, 2021Publication date: August 19, 2021Applicant: CUMMINS INC.Inventors: Andrew P. Perr, Robin J. Bremmer, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, JR., Dennis King Chan
-
Publication number: 20210239071Abstract: A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cooling passages, particularly surrounding the central portions of the cylinders.Type: ApplicationFiled: March 25, 2021Publication date: August 5, 2021Applicant: ACHATES POWER, INC.Inventors: Andrew P. Perr, John J. Koszewnik, Gary A. Vrsek
-
Publication number: 20210239070Abstract: A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cooling passages, particularly surrounding the central portions of the cylinders.Type: ApplicationFiled: March 25, 2021Publication date: August 5, 2021Applicant: ACHATES POWER, INC.Inventors: Andrew P. Perr, John J. Koszewnik, Gary A. Vrsek
-
Publication number: 20210156349Abstract: A fuel injector mounting assembly in an opposed-piston engine allows for mounting of a fuel injector in a cylinder block without significantly deforming the wall of the cylinder into which the injector is configured to deliver fuel. The fuel injector mounting assembly includes a clamping arrangement to clamp the fuel injector to the cylinder block, an elongate tubular sleeve that sheathes a nozzle portion of the fuel injector, and a spanner nut attached to the elongate tubular sleeve. Clamping loads applied to retain the fuel injector in the cylinder block are controlled by the spanner nut.Type: ApplicationFiled: November 25, 2019Publication date: May 27, 2021Applicant: ACHATES POWER, INC.Inventor: Andrew P. Perr
-
Patent number: 11008973Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.Type: GrantFiled: February 22, 2018Date of Patent: May 18, 2021Assignee: Cummins Inc.Inventors: Andrew P. Perr, Robin J. Bremmer, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Jr., Dennis King Chan
-
Patent number: 10989136Abstract: A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cooling passages, particularly surrounding the central portions of the cylinders.Type: GrantFiled: November 13, 2018Date of Patent: April 27, 2021Assignee: Achates Power, Inc.Inventors: Andrew P. Perr, John J. Koszewnik, Gary A. Vrsek
-
Publication number: 20200232414Abstract: A cooling system for a cylinder head of an internal combustion engine includes a cylindrical seat configured to engage an exhaust valve, a first coolant jacket, and a first conduit. The exhaust valve seat defines an annular cooling passage extending along a circumference of the cylindrical seat. A wall of the cylindrical seat defines a first opening into the annular cooling passage and a second opening into the annular cooling passage, where the first opening is positioned diametrically opposite to the second opening. The first coolant jacket is positioned adjacent to a fire-deck of the internal combustion engine. The first conduit fluidly couples the first coolant jacket to the at least one of the first opening and the second opening to the annular cooling passage in the exhaust valve seat.Type: ApplicationFiled: February 22, 2018Publication date: July 23, 2020Applicant: CUMMINS INC.Inventors: Andrew P. Perr, Robin J. Bremmer, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Dennis King Chan
-
Publication number: 20200149493Abstract: A parent bore cylinder block of an internal combustion, opposed-piston engine includes cooling passages that are formed using a 3-D printed casting core. The casting core can include portions that are ceramic. The parent bore cylinder block can include multiple cylinders, each cylinder with cooling passages and turbulence inducing features in those cooling passages, particularly surrounding the central portions of the cylinders.Type: ApplicationFiled: November 13, 2018Publication date: May 14, 2020Applicant: ACHATES POWER, INC.Inventors: ANDREW P. PERR, JOHN J. KOSZEWNIK, GARY A. VRSEK
-
Patent number: 10619550Abstract: The present disclosure provides a stud assembly insertable throughout a base block. The stud assembly includes a retention ring to engage with the base block and provide ease in assembly of the bearing cap stud assembly in an engine configuration without compromising load carrying characteristics of the design.Type: GrantFiled: August 10, 2018Date of Patent: April 14, 2020Assignee: Cummins Inc.Inventor: Andrew P. Perr
-
Publication number: 20200049193Abstract: The present disclosure provides a stud assembly insertable throughout a base block. The stud assembly includes a retention ring to engage with the base block and provide ease in assembly of the bearing cap stud assembly in an engine configuration without compromising load carrying characteristics of the design.Type: ApplicationFiled: August 10, 2018Publication date: February 13, 2020Applicant: CUMMINS INC.Inventor: Andrew P. Perr
-
Patent number: 10494981Abstract: A combustion pre-chamber device for a spark ignition internal combustion engine is configured to engage a spark plug and be mounted to a cylinder head in communication with a combustion chamber of a cylinder of the engine. The combustion pre-chamber device includes a number of bores that open at an outer surface thereof that extend into the body and receive a coolant flow to provide cooling for a combustion pre-chamber of the combustion pre-chamber device.Type: GrantFiled: June 7, 2019Date of Patent: December 3, 2019Assignee: Cummins IncInventors: Andrew P. Perr, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, Jr., Dwight A. Doig
-
Publication number: 20190284985Abstract: A combustion pre-chamber device for a spark ignition internal combustion engine is configured to engage a spark plug and be mounted to a cylinder head in communication with a combustion chamber of a cylinder of the engine. The combustion pre-chamber device includes a number of bores that open at an outer surface thereof that extend into the body and receive a coolant flow to provide cooling for a combustion pre-chamber of the combustion pre-chamber device.Type: ApplicationFiled: June 7, 2019Publication date: September 19, 2019Inventors: Andrew P. Perr, Philipe F. Saad, Akintomide K. Akinola, Rick Vaughan Lewis, JR., Dwight A. Doig
-
Patent number: 9556778Abstract: An engine including a WHR system includes a clutch positioned to engage or disengage a WHR feedpump that moves working fluid through a WHR circuit. The clutch engages or disengages the feedpump under certain operating conditions of the engine and/or the WHR system, and/or at the request of an operator of the engine. Conditions may include cool or cold components, and insufficient working fluid. The operator may also request the clutch be disengaged, such as might be advantageous if the operator detects an operational problem with the WHR system or determines there is an advantage to operating the engine without the WHR system.Type: GrantFiled: December 10, 2013Date of Patent: January 31, 2017Assignee: Cummins Inc.Inventors: James A. Zigan, Andrew P. Perr, Timothy C. Ernst
-
Publication number: 20150159535Abstract: An engine including a WHR system includes a clutch positioned to engage or disengage a WHR feedpump that moves working fluid through a WHR circuit. The clutch engages or disengages the feedpump under certain operating conditions of the engine and/or the WHR system, and/or at the request of an operator of the engine. Conditions may include cool or cold components, and insufficient working fluid. The operator may also request the clutch be disengaged, such as might be advantageous if the operator detects an operational problem with the WHR system or determines there is an advantage to operating the engine without the WHR system.Type: ApplicationFiled: December 10, 2013Publication date: June 11, 2015Applicant: Cummins Inc.Inventors: James A. Zigan, Andrew P. Perr, Timothy C. Ernst
-
Publication number: 20130104860Abstract: An engine air management system is provided for an internal combustion engine generating blowby gas in a crankcase containing engine oil and oil aerosol. The system includes combinations of two or more of an air-oil separator, an air filter, and an acoustic silencer.Type: ApplicationFiled: December 20, 2012Publication date: May 2, 2013Applicant: CUMMINS FILTRATION IP, INC.Inventors: Scott P. Heckel, Jerald J. Moy, Scvott W. Schwartz, Andrew P. Perr, Mark V. Holzmann, Peter K. Herman, Michael T. Zuroski, Brian W. Schwandt