Patents Assigned to Cummins Intellectual Property, Inc.
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Patent number: 9464591Abstract: A cylinder liner sealing arrangement for an internal combustion engine including a cylinder block having cylinder bores, a cylinder head, a cylinder liner within each cylinder bore and a circumferential cut-out formed in the upper and outer surfaces of the cylinder liner. A circular sealing ring is positioned in the circumferential cut-out with the sealing ring contacting at least the cylinder block and the cylinder liner to form a coolant seal therebetween. The sealing ring includes a seal enhancing configuration formed on at least an outer circumferential surface of the sealing ring with the seal enhancing configuration including at least one of an arcuate portion of a āDā ring seal or a plurality of circumferentially extending ribs.Type: GrantFiled: December 9, 2013Date of Patent: October 11, 2016Assignee: Cummins Intellectual Properties, Inc.Inventors: Joseph Worthington, Terry M. Shaw, David Genter, Dan E. Richardson, Ian McGiffen, Mark G. Luehrmann, Keith Gunter
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Patent number: 9440635Abstract: A velocity profile can be used in conjunction with vehicle operating condition data to determine a gear shift schedule that mitigates the amount of service brake effort required to slow a vehicle by making optimal use of engine speed, friction and engine brakes. The gear shift point drives the engine to a higher operating speed and greater frictional torque, slowing the vehicle, which can then coast to a desired speed. The gear shift point can be timed to minimize fuel consumption during the maneuver. Thus, a vehicle downshift event is created based on the transmission gear recommendation. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.Type: GrantFiled: May 20, 2014Date of Patent: September 13, 2016Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, An Wu, Barty L. Moffett, Howard R. Frost
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Patent number: 9441528Abstract: This disclosure relates to an improved prechamber device for an internal combustion engine. The prechamber device is positioned adjacent to a combustion chamber. The improved prechamber device is configured to improve removal of heat from the prechamber device, particularly in the area adjacent to the combustion chamber.Type: GrantFiled: December 11, 2015Date of Patent: September 13, 2016Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventor: Patrick M. Pierz
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Patent number: 9382887Abstract: An engine component seal assembly and method of sealing a coolant passage from an engine component are provided. The seal assembly includes a sealing sleeve sized and dimensioned to slip fit into an engine component mounting bore and a retaining ring sized and dimensioned to be axially inserted into the sleeve. The ring contacts the sleeve and applies a radial force sufficient to create an interference fit and to move or yield an interface portion of the sleeve radially outward into sealing abutment against a wall forming the mounting bore to create a secure and reliable annular fluid seal.Type: GrantFiled: July 25, 2012Date of Patent: July 5, 2016Assignee: Cummins Intellectual Property. Inc.Inventors: Kent H. Clark, Glen T. Haegele, Nathan E. Coulombe, Matthew R. Walker, John M. Nyvall, Jeffrey J. Hurd, Andrew J. Keenan, Dustin J. Hall, Brendan J. O'Grady
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Patent number: 9347402Abstract: An intake body, systems, and method for reducing acoustic resonance in pressure tap passages include determining and/or setting the length of the drilling tap passages to a value such that the natural frequency of each pressure tap passage is outside of or does not substantially overlap with operational frequency content of an air stream in the intake body. The intake body, systems and method reduce the possibility of exciting the natural acoustic frequencies of the pressure tap passages, and can lead to improved signal-to-noise ratio when detecting EGR flow using a delta-P measurement system.Type: GrantFiled: January 27, 2014Date of Patent: May 24, 2016Assignee: CUMMINS INTELLECTUAL PROPERTIES, INC.Inventors: Gregory L. Emerick, David J. Moenssen, Brian R. Alderfer, Joshua R. Miller, Gregory H. Henderson, Lisa A. Orth-Farrell, Robert E. Dehner
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Patent number: 9334760Abstract: This disclosure relates to a waste heat recovery (WHR) system and to a system and method for regulation of a fluid inventory in a condenser and a receiver of a Rankine cycle WHR system. Such regulation includes the ability to regulate the pressure in a WHR system to control cavitation and energy conversion.Type: GrantFiled: July 11, 2014Date of Patent: May 10, 2016Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Timothy C. Ernst, Christopher R. Nelson
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Publication number: 20160086132Abstract: 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: ApplicationFiled: December 4, 2015Publication date: March 24, 2016Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Vivek A. SUJAN, Phani VAJAPEYAZULA, Kenneth FOLLEN, An WU, Barty L. MOFFETT
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Publication number: 20160061059Abstract: 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: ApplicationFiled: November 12, 2015Publication date: March 3, 2016Applicant: Cummins Intellectual Property, Inc.Inventors: Timothy C. Ernst, Dave Morris
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Publication number: 20160040615Abstract: 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: ApplicationFiled: October 21, 2015Publication date: February 11, 2016Applicants: CUMMINS INTELLECTUAL PROPERTY, INC., PACCAR, INC., EATON CORPORATIONInventors: Vivek A. SUJAN, Timothy R. FRAZIER
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Patent number: 9234450Abstract: This disclosure relates a water pump, a system for cooling internal combustion engine components including a water pump, and a method for operating an internal combustion engine including a water pump. The water pump, system and method provide protection of the pump impeller during dry pump operation, such as when a watercraft engine is started while the watercraft is out of water, by dispensing fluid from a reservoir to the pump's impeller chamber. The fluid enters the chamber via a controllable flow path and interacts with the impeller and chamber walls to cool and lubricate the impeller.Type: GrantFiled: March 21, 2011Date of Patent: January 12, 2016Assignee: Cummins Intellectual Properties, Inc.Inventors: Roger D. England, Mike Abraham, Thomas M. Yonushonis
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Patent number: 9235817Abstract: 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: January 12, 2012Date of Patent: January 12, 2016Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, An Wu, Barty L. Moffett
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Publication number: 20150369108Abstract: 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: August 28, 2015Publication date: December 24, 2015Applicant: 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
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Patent number: 9217338Abstract: 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: December 23, 2011Date of Patent: December 22, 2015Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Timothy C. Ernst, Dave Morris
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Patent number: 9217360Abstract: This disclosure relates to an improved prechamber device for an internal combustion engine. The prechamber device is positioned adjacent to a combustion chamber. The improved prechamber device is configured to improve removal of heat from the prechamber device, particularly in the area adjacent to the combustion chamber.Type: GrantFiled: December 1, 2011Date of Patent: December 22, 2015Assignee: Cummins Intellectual Property, Inc.Inventor: Patrick M. Pierz
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Patent number: 9206764Abstract: A cylinder liner and piston configuration for an internal combustion engine includes features for improving the cooling of the piston. Specific ratios and dimensions are included to optimize the features of the cylinder liner and piston. Also included are unique piston features that assist in achieving some of the specified dimensions and ratios.Type: GrantFiled: March 7, 2012Date of Patent: December 8, 2015Assignee: Cummins Intellectual Property, Inc.Inventors: David Paul Genter, Keith A. Gunter, Ian W. McGiffen, Joseph A. Worthington
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Patent number: 9194309Abstract: A system and method for identifying and analyzing a route using an inexpensive GPS system is provided. The system and method provides a location for storing GPS and vehicle operating data for at least one route, requiring a plurality of runs over the at least one route. Once a predetermined minimum number of runs have been reached, the system and method define a route segment, interpolate additional data points using the GPS and vehicle operating data, synchronize the data over the plurality of runs, and analyze the data. The analyzed data is then provided to a module capable of controlling the operation of an internal combustion engine. The analyzed data is forward-looking in that it permits anticipation of vehicle operation, and more particularly, engine and transmission operation.Type: GrantFiled: February 20, 2014Date of Patent: November 24, 2015Assignees: Cummins Intellectual Properties, Inc., PACCAR, Inc., Eaton CorporationInventors: Vivek A. Sujan, An Wu, Phani Vajapeyazula, Kenneth Follen, Howard R. Frost, Suk-Min Moon, Jaidev Khatri
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Patent number: 9194318Abstract: 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: February 28, 2012Date of Patent: November 24, 2015Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Vivek A. Sujan, Timothy R. Frazier
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Patent number: 9162679Abstract: A vehicle operating condition profile can be determined over a given route while also considering imposed constraints such as deviation from time targets, deviation from maximum governed speed limits, etc. Given current vehicle speed, engine state and transmission state, the present disclosure optimally manages the engine map and transmission to provide a recommended vehicle operating condition that optimizes fuel consumption in transitioning from one vehicle state to a target state. Exemplary embodiments provide for offline and online optimizations relative to fuel consumption. The benefit is increased freight efficiency in transporting cargo from source to destination by minimizing fuel consumption and maintaining drivability.Type: GrantFiled: December 23, 2011Date of Patent: October 20, 2015Assignee: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Vivek A. Sujan, Phani Vajapeyazula, Kenneth Follen, An Wu, Barty L. Moffett
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Patent number: 9151202Abstract: 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: October 12, 2011Date of Patent: October 6, 2015Assignee: 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
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Patent number: 9127617Abstract: An improved cooling fluid passage configuration provides for uniformity of cooling about the entire periphery of a cylinder liner of an internal combustion engine in addition to improved cooling by increasing the flow in an upper water jacket of a split water jacket design. The cooling fluid passage configuration also provides a reduced pressure drop between a cylinder liner cooling fluid inlet and a cylinder head cooling fluid outlet when compared to conventional designs with a single head feed line, permitting use of a smaller cooling fluid pump and leading to increased efficiency of the engine.Type: GrantFiled: March 21, 2012Date of Patent: September 8, 2015Assignee: Cummins Intellectual Property, Inc.Inventors: Ian McGiffen, Joseph Worthington, Keith A. Gunter