Patents Assigned to Cummins Intellectual Properties, Inc.
-
Patent number: 11280283Abstract: An engine control system and method includes sensing the quality of fuel in the engine relative to emissions, by for example sensing the level of an emission related constituent, such as sulfur. A fuel quality sensor detects a fuel quality of a fuel, such as the sulfur level the fuel, and provides a signal in response to the fuel quality. The engine control system also includes a navigation device to determine whether an engine is located in a regulated or non-regulated region. The engine control system receives the signal and controls engine operation by, for example, enabling or disabling one or more engine algorithms to improve performance of the engine based on the fuel quality signal or, in other embodiments, the combination of the fuel quality and the location of the engine.Type: GrantFiled: April 10, 2018Date of Patent: March 22, 2022Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventor: Jennifer K. Light-Holets
-
Patent number: 10982639Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.Type: GrantFiled: December 13, 2017Date of Patent: April 20, 2021Assignee: Cummins Intellectual Property, Inc.Inventors: Lester L. Peters, Jeffrey C. Huang, David L. Buchanan, Corydon Edward Morris, Gary L. Gant, Denis Gill, Heribert Kammerstetter, Ernst Winklhofer
-
Patent number: 10579953Abstract: Systems and methods of vehicle freight/load distribution are provided to assist in determining optimal freight distribution. Although it is standard practice to fill each vehicle to its maximum limit, due to the non-linear nature of engine fueling maps (that is, fueling maps vary non-linearly as a function of torque and speed), the optimal distribution may not be obtained by the standard practice. Finding a solution for the optimal freight distribution may also need to account for the cost of fueling and operator costs, particularly if the situation involves multiple vehicles not filled to capacity. The benefit is increased freight efficiency in transporting cargo from source to destination amongst a fleet of vehicles.Type: GrantFiled: December 4, 2015Date of Patent: March 3, 2020Assignee: Cummins Intellectual Property, Inc.Inventors: Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, An Wu, Barty L. Moffett
-
Patent number: 10328923Abstract: A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption.Type: GrantFiled: October 20, 2017Date of Patent: June 25, 2019Assignees: Cummins Intellectual Properties, Inc., PACCAR, Inc., Eaton CorporationInventors: An Wu, Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, Howard R. Frost
-
Patent number: 10273861Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.Type: GrantFiled: May 16, 2018Date of Patent: April 30, 2019Assignee: Cummins Intellectual Property, Inc.Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
-
Publication number: 20180258823Abstract: An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.Type: ApplicationFiled: May 16, 2018Publication date: September 13, 2018Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Colin L. Norris, Richard J. Ancimer, Axel O. zur Loye, Randy W. Nelson, Gary Charles Salemme, Ousmane Gueye, John Franklin Wright
-
Publication number: 20180100477Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.Type: ApplicationFiled: December 13, 2017Publication date: April 12, 2018Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Lester PETERS, Jeffrey HUANG, David BUCHANAN, Corydon Edward MORRIS, Gary GANT, Denis GIL, Heribert KAMMERSTETTER, Ernst WINKLHOFER
-
Patent number: 9903329Abstract: A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.Type: GrantFiled: April 16, 2012Date of Patent: February 27, 2018Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Lester L. Peters, Jeffrey C. Huang, David L. Buchanan, Corydon Edward Morris, Gary Gant, Denis Gill, Heribert Kammerstetter, Ernst Winklhofer
-
Patent number: 9802597Abstract: A system for establishing a torque limit for a vehicle is provided. The system uses impending terrain and speed conditions to determine an optimum torque, which improves engine efficiency and reduces fuel consumption.Type: GrantFiled: March 6, 2014Date of Patent: October 31, 2017Assignee: CUMMINS INTELLECTUAL PROPERTIES, INC.Inventors: An Wu, Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, Howard R. Frost
-
Patent number: 9745869Abstract: This disclosure relates to a waste heat recovery (WHR) system and method for regulating exhaust gas recirculation (EGR) cooling, and more particularly, to a Rankine cycle WHR system and method, including a recuperator bypass arrangement to regulate EGR exhaust gas cooling for engine efficiency improvement and thermal management. This disclosure describes other unique bypass arrangements for increased flexibility in the ability to regulate EGR exhaust gas cooling.Type: GrantFiled: November 12, 2015Date of Patent: August 29, 2017Assignee: Cummins Intellectual Property, Inc.Inventors: Timothy C. Ernst, Dave Morris
-
Patent number: 9719457Abstract: This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.Type: GrantFiled: April 20, 2015Date of Patent: August 1, 2017Assignee: Cummins Intellectual Property, Inc.Inventors: Paul V. Moonjelly, Richard A. Booth, Lester L. Peters, Jeffrey C. Huang, Phanindra Garimella
-
Patent number: 9702272Abstract: A Rankine cycle waste heat recovery system uses a receiver with a maximum liquid working fluid level lower than the minimum liquid working fluid level of a sub-cooler of the waste heat recovery system. The receiver may have a position that is physically lower than the sub-cooler's position. A valve controls transfer of fluid between several of the components in the waste heat recovery system, especially from the receiver to the sub-cooler. The system may also have an associated control module.Type: GrantFiled: August 6, 2014Date of Patent: July 11, 2017Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Timothy C. Ernst, Christopher R. Nelson
-
Patent number: 9702289Abstract: A waste heat recovery (WHR) system operates in a reverse mode, permitting using the WHR system to transfer heat to the exhaust gas of an internal combustion engine. In another configuration, a WHR system may operate in two modes. The first mode removes heat from exhaust gas of an engine to perform useful work. The second mode transfers heat to the exhaust gas. The benefit of this flexible system is that a WHR system is adaptable to rapidly heat exhaust gas at startup and during other conditions where the temperature of the exhaust gas is less than a predetermined operating range. Because of the ability to rapidly warm engine exhaust gas, an exhaust gas receiving system, such as an EGR or an aftertreatment system, may function to reduce the emissions of the engine more quickly. Because this system is reversible, it retains the capability of a conventional WHR system.Type: GrantFiled: October 28, 2014Date of Patent: July 11, 2017Assignee: Cummins Intellectual Property, Inc.Inventor: Marten H. Dane
-
Patent number: 9650925Abstract: A system and method of providing supplementary oil flow to an oil circuit of an internal combustion engine is described. The primary oil supply is from a mechanical oil pump. The supplementary oil supply is provided using a control system, one or more sensors, and an electrical oil pump. The system is beneficial in circumstances where the mechanical oil pump provides insufficient oil flow, including during engine shutdown.Type: GrantFiled: July 25, 2012Date of Patent: May 16, 2017Assignee: Cummins Intellectual Property, Inc.Inventors: Paul Douglas Free, Kavana Rao, Michael F. Mattern
-
Patent number: 9638067Abstract: A Rankine cycle waste heat recovery system associated with an internal combustion engine is in a configuration that enables handling of exhaust gas recirculation (EGR) gas by using the energy recovered from a Rankine cycle waste heat recovery system. The system includes a control module for regulating various function of the internal combustion engine and its associated systems along with the Rankine cycle waste heat recovery system.Type: GrantFiled: April 6, 2015Date of Patent: May 2, 2017Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Christopher R. Nelson, Timothy C. Ernst
-
Patent number: 9624857Abstract: This disclosure provides a method and system for determining recommendations for vehicle operation that reduce soot production in view of a diesel particulate filter (DPF) of an exhaust aftertreatment system. Recommendations generated can reduce excessive particulate matter (PM) production during transient engine events and provide for operating conditions favorable for passive regeneration. In this way, less frequent active regeneration of the DPF is needed and/or more opportunities are provided for passive regeneration. The system and method can utilize location and terrain information to anticipate and project a window of operation in view of reducing soot production and soot loading of the DPF, or provide the operator with instruction when such opportunities are present or will soon be encountered.Type: GrantFiled: October 21, 2015Date of Patent: April 18, 2017Assignees: CUMMINS INTELLECTUAL PROPERTY, INC., PACCAR, INC., EATON CORPORATIONInventors: Vivek A. Sujan, Timothy R. Frazier
-
Patent number: 9562467Abstract: A charge air cooler assembly for an internal combustion engine is described. A housing of the charge air cooler assembly includes a dividing wall that separates flow after the charge air cooler into two separate flow paths.Type: GrantFiled: February 3, 2014Date of Patent: February 7, 2017Assignee: Cummins Intellectual Property, Inc.Inventor: Atsuhiko Watanabe
-
Patent number: 9470115Abstract: A cooling system provides improved heat recovery by providing a split core radiator for both engine cooling and condenser cooling for a Rankine cycle (RC). The cooling system includes a radiator having a first cooling core portion and a second cooling core portion. An engine cooling loop is fluidly connected the second cooling core portion. A condenser of an RC has a cooling loop fluidly connected to the first cooling core portion. A valve is provided between the engine cooling loop and the condenser cooling loop adjustably control the flow of coolant in the condenser cooling loop into the engine cooling loop. The cooling system includes a controller communicatively coupled to the valve and adapted to determine a load requirement for the internal combustion engine and adjust the valve in accordance with the engine load requirement.Type: GrantFiled: August 11, 2011Date of Patent: October 18, 2016Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Timothy C. Ernst, Christopher R. Nelson
-
Patent number: 9470177Abstract: Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket.Type: GrantFiled: January 15, 2015Date of Patent: October 18, 2016Assignee: Cummins Intellectual Property, Inc.Inventors: Jeffrey D. Jones, Vipin Prabhakaran, David M. Barnes
-
Patent number: RE46806Abstract: A piston and an engine are provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of combustion chamber features. More particularly, configuration parameters for a piston crown and a piston bowl located within the piston crown are provided. The piston bowl configuration results in a combustion process that yields decreased heat transfer to a cylinder head of the internal combustion engine as well as reduced NOx emissions.Type: GrantFiled: March 25, 2016Date of Patent: April 24, 2018Assignee: Cummins Intellectual Property, Inc.Inventors: Rishikesh Venugopal, Donald W. Stanton, Bhargav Ranganath, Thomas Bodin