Patents Assigned to Cummins Power Generation Inc.
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Patent number: 11174822Abstract: A compressor bypass reintroduction system includes a compressor intake manifold and a bypass conduit. The compressor intake manifold defines a fluid plenum. The compressor intake manifold is engageable with a compressor. The bypass conduit extends into the fluid plenum and includes an ejector line. The ejector line is configured to be substantially collinear with the compressor and to discharge flow toward the compressor. In some embodiments, an outlet of the ejector is disposed proximate to an outlet of the fluid plenum that discharges flow into the compressor.Type: GrantFiled: July 13, 2020Date of Patent: November 16, 2021Assignee: Cummins Power Generation Inc.Inventors: Jeremy A. Lackey, Alan C. Anderson, Joshua Bradley Bettis, Steven L. Leffler, Dilip Ramachandran, John A. Rennekamp, Axel O. Zur Loye, Andrew Guy Kitchen, George Martin Tolhurst
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Publication number: 20210234399Abstract: Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller.Type: ApplicationFiled: January 22, 2021Publication date: July 29, 2021Applicant: Cummins Power Generation Inc.Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald, Gordon J. Keller
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Publication number: 20210234369Abstract: Systems and apparatuses include a non-transitory computer readable media having computer-executable instructions embodied therein that, when executed by a circuit of a power system, causes the power system to perform functions to activate and deactivate routes.Type: ApplicationFiled: January 22, 2021Publication date: July 29, 2021Applicant: Cummins Power Generation Inc.Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald
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Publication number: 20210234486Abstract: Systems and apparatuses include a circuit structured to: identify a first source object, a second source object, and a load bus object; determine locations of the first source object, the second source object, and the load bus object on a one-line topology; receive operational parameters of the first source object, the second source object, and the load bus object; define, using the one-line topology, a first route including objects electrically connected between the first source object and the load bus object; define, using the one-line topology, a second route including all objects electrically connected between the second source object and the load bus object; and control operation of the first route and the second route.Type: ApplicationFiled: January 22, 2021Publication date: July 29, 2021Applicant: Cummins Power Generation Inc.Inventors: Kevin J. Aufderhar, Paul R. Dahlen, Dennis G. McDonald
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Patent number: 9593799Abstract: A system and apparatus for a slip joint mount is disclosed to accommodate thermal expansion of a generator set on a base. One embodiment includes an electric generator driven by a prime mover and an equipment mount coupled to the prime mover. A base includes a mounting aperture and means for retaining the equipment mount to the mounting aperture. Also disclosed is means for allowing for movement of the equipment mount with respect to the mounting aperture due to thermal expansion of a portion of the prime mover.Type: GrantFiled: July 16, 2015Date of Patent: March 14, 2017Assignee: CUMMINS POWER GENERATION, INC.Inventors: Edward J. Wang, Brian D. Tjenstrom, Gregory P. Peterson, Steve N. Seidlitz, Gary Sandlass, Jeffrey G. Anderson, SzeKwan Cheah
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Patent number: 9404417Abstract: Systems, methods and apparatus for noise attenuation of a generator set are disclosed. The generator set includes an internal combustion engine enclosed within a compartment that substantially isolates the internal combustion from ambient air and a load connected to the internal combustion engine. A heat exchanger is disposed within or coupled to the compartment and is operable to cool air in the compartment without directly exchanging ambient air with compartment air.Type: GrantFiled: November 30, 2012Date of Patent: August 2, 2016Assignee: CUMMINS POWER GENERATION, INC.Inventors: Daniel Norrick, Madhukar Mahishi
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Publication number: 20150316198Abstract: A system and apparatus for a slip joint mount is disclosed to accommodate thermal expansion of a generator set on a base. One embodiment includes an electric generator driven by a prime mover and an equipment mount coupled to the prime mover. A base includes a mounting aperture and means for retaining the equipment mount to the mounting aperture. Also disclosed is means for allowing for movement of the equipment mount with respect to the mounting aperture due to thermal expansion of a portion of the prime mover.Type: ApplicationFiled: July 16, 2015Publication date: November 5, 2015Applicant: Cummins Power Generation, Inc.Inventors: Edward J. Wang, Brian D. Tjenstrom, Gregory P. Peterson, Steve N. Seidlitz, Gary Sandlass, Jeffrey G. Anderson, SzeKwan Cheah
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Patent number: 9115638Abstract: A genset system that includes a genset assembly, an electronic fuel injection (EFI) system and an alcohol sensor and a method of controlling air-to-fuel ratio using the genset system are described. The genset assembly includes a genset engine that (1) is capable of running on at least one of gasoline and alcohol, (2) is an air-cooled engine, and (3) operates at a rich air-to-fuel ratio (AFR). The EFI system includes an electronic control unit that is configured to determine a requested AFR based on the data from the alcohol sensor and the data from the air flow sensor, and based on the determined requested relative AFR, the electronic control unit is configured to actuate the fuel injector such that the fuel in an amount sufficient for obtaining an air/fuel mixture that is at the determined requested relative AFR is injected into the intake system.Type: GrantFiled: October 30, 2012Date of Patent: August 25, 2015Assignee: Cummins Power Generation, Inc.Inventors: David T. Falkowski, Nick V. Halstead, Deborah A. Klinkert, Matthew J. Ethen, Luke R. Staples
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Patent number: 9091322Abstract: A system and apparatus for a slip joint mount is disclosed to accommodate thermal expansion of a generator set on a base. One embodiment includes an electric generator driven by a prime mover and an equipment mount coupled to the prime mover. A base includes a mounting aperture and means for retaining the equipment mount to the mounting aperture. Also disclosed is means for allowing for movement of the equipment mount with respect to the mounting aperture due to thermal expansion of a portion of the prime mover.Type: GrantFiled: November 1, 2012Date of Patent: July 28, 2015Assignee: CUMMINS POWER GENERATION, INC.Inventors: Edward J. Wang, Brian D. Tjenstrom, Gregory P. Peterson, Steve N. Seidlitz, Gary Sandlass, Jeffrey G. Anderson, SzeKwan Cheah
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Patent number: 8857781Abstract: A modular skid base is provided for supporting, for example, a power generation system that includes a prime mover (e.g., an engine) and a driven machine (e.g., an alternator; a generator; a compressor; a pump; a gear drive for, for example, heavy industrial applications; or any other type of load device). The modular skid base includes a pair of first support skid rails and a pair of second support skid rails. The modular skid base also includes an overlapping section that includes a portion of the second support skid rails overlapping a portion of the first support skid rails along a length direction of the modular skid base. The overlapping section can provide stiffness where required without adding height and mass to the entire modular skid base.Type: GrantFiled: November 1, 2012Date of Patent: October 14, 2014Assignee: Cummins Power Generation, Inc.Inventors: Edward J. Wang, Brian D. Tjenstrom, Gregory P. Peterson, Steve N. Seidlitz, Gary Sandlass
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Publication number: 20140209053Abstract: Generally, an overflow conduit is described in apparatuses, systems, and methods to protect a crankcase oil sump from overfill. The overflow conduit is to be connected to a crankcase oil sump of an engine, and is configured to passively receive oil from the crankcase oil sump to avoid an overfill condition from occurring in the crankcase oil sump. The overflow conduit is configured to deliver excess oil received to a sub-base tank located relatively below the crankcase oil sump, or in particular at or below an oil level in the crankcase oil sump.Type: ApplicationFiled: January 25, 2013Publication date: July 31, 2014Applicant: CUMMINS POWER GENERATION, INC.Inventors: Daniel A. NORRICK, Paul H. PLAHN
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Publication number: 20140150437Abstract: Systems, methods and apparatus for noise attenuation of a generator set are disclosed. The generator set includes an internal combustion engine enclosed within a compartment that substantially isolates the internal combustion from ambient air and a load connected to the internal combustion engine. A heat exchanger is disposed within or coupled to the compartment and is operable to cool air in the compartment without directly exchanging ambient air with compartment air.Type: ApplicationFiled: November 30, 2012Publication date: June 5, 2014Applicant: Cummins Power Generation, Inc.Inventors: Daniel Norrick, Madhukar Mahishi
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Publication number: 20140156099Abstract: A system comprising a controllable alternating current power source; an active rectifier coupled to the controllable alternating current power source and configured to rectify an output of the controllable alternating current power source to supply a direct current to a load; and a controller configured to adjust at least one of a parameter of the controllable alternating current power source and a parameter of the active rectifier in response to a target output.Type: ApplicationFiled: December 5, 2012Publication date: June 5, 2014Applicant: Cummins Power Generation, Inc.Inventors: Elias M. Ayana, Brad K. Palmer
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Patent number: 8684338Abstract: An active torque cancellation system is provided. The system includes a generator set having a combustion engine and mounted to an application structure. The system also includes an active power management module coupled to the engine which actively reduces vibrations in the application structure.Type: GrantFiled: September 17, 2008Date of Patent: April 1, 2014Assignee: Cummins Power Generation, Inc.Inventors: Paul H. Plahn, John Hughes, Elias Ayana, Krzysztof Wejrzanowski, Abdeslam Mebarki
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Patent number: 8683980Abstract: An open or closed loop EFI system, integrated on a genset engine or any internal combustion engine, with an electrical sensor and crank position sensor is described. Since a genset engine's exhaust emissions and general performance are a function of spark timing, integration of electrical and crank position sensors on a genset engine provides optimal engine performance and efficiency when the electrical draws fluctuate. The electrical sensor and crank position sensor send data to the electronic control unit (ECU), and this data is used to determine the optimal air-to-fuel ratio (AFR) and optimal spark timing. The ECU varies the spark timing in accordance with the speed and load of the engine and actuates the fuel injector to send the correct amount of atomized fuel to mix with the air flow to be combusted allowing the engine to meet performance.Type: GrantFiled: January 28, 2010Date of Patent: April 1, 2014Assignee: Cummins Power Generation, Inc.Inventors: David T. Falkowski, Jeffrey D. Peterson, Matthew J. Ethen, Kristopher G. Knight, Peter J. Vancalligan
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Patent number: 8623533Abstract: Methods and systems for maintaining near operational mode internal temperatures of a high temperature fuel cell system during a hibernation mode are provided. Embodiments of the claimed invention include powering an electric heater adjacent to the high temperature fuel cell system to heat the high temperature fuel cell system. The use of an electrical heater allows the fuel cell system to maintain approximate operation mode internal temperatures during a hibernation mode and eliminates the problems of excess noise, vibration and exhaust emissions typical of previous fuel cell system heating methods. Gross energy savings of 67% and a fuel consumption reduction rate of 33% have been shown when substituting this method with previous fuel cell system heating methods with no additional manufacturing costs.Type: GrantFiled: September 14, 2007Date of Patent: January 7, 2014Assignee: Cummins Power Generation Inc.Inventors: Charles Vesely, Bradford Palmer, Xin Li
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Publication number: 20130106113Abstract: A modular skid base is provided for supporting, for example, a power generation system that includes a prime mover (e.g., an engine) and a driven machine (e.g., an alternator; a generator; a compressor; a pump; a gear drive for, for example, heavy industrial applications; or any other type of load device). The modular skid base includes a pair of first support skid rails and a pair of second support skid rails. The modular skid base also includes an overlapping section that includes a portion of the second support skid rails overlapping a portion of the first support skid rails along a length direction of the modular skid base. The overlapping section can provide stiffness where required without adding height and mass to the entire modular skid base.Type: ApplicationFiled: November 1, 2012Publication date: May 2, 2013Applicant: CUMMINS POWER GENERATION, INC.Inventor: CUMMINS POWER GENERATION, INC.
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Patent number: 8413642Abstract: A genset engine that operates on an open loop EFI system and runs on gaseous fuels is described. The integration of various air sensors, including for example a manifold air temperature (MAT) sensor, a manifold absolute pressure (MAP) sensor, or an air flow sensor(s), can provide optimal engine performance when using gaseous fuels and when starting from a cold state. The sensors employed send data to the electronic control unit (ECU) and such data is used to determine the optimal air-to-fuel ratio (AFR). The ECU actuates the injector and the injector sends the requested amount of gaseous fuel to mix with the air flow to be combusted. This provides the engine with a gaseous fuel and air mixture that is at the requested relative AFR and the engine is able to start and meet performance.Type: GrantFiled: January 28, 2010Date of Patent: April 9, 2013Assignee: Cummins Power Generation, Inc.Inventors: Aaron C. Johnson, Keith M. Schorr, Timothy J. Krattenmaker
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Publication number: 20130061833Abstract: A genset system that includes a genset assembly, an electronic fuel injection (EFI) system and an alcohol sensor and a method of controlling air-to-fuel ratio using the genset system are described. The genset assembly includes a genset engine that (1) is capable of running on at least one of gasoline and alcohol, (2) is an air-cooled engine, and (3) operates at a rich air-to-fuel ratio (AFR). The EFI system includes an electronic control unit that is configured to determine a requested AFR based on the data from the alcohol sensor and the data from the air flow sensor, and based on the determined requested relative AFR, the electronic control unit is configured to actuate the fuel injector such that the fuel in an amount sufficient for obtaining an air/fuel mixture that is at the determined requested relative AFR is injected into the intake system.Type: ApplicationFiled: October 30, 2012Publication date: March 14, 2013Applicant: CUMMINS POWER GENERATION, INC.Inventor: CUMMINS POWER GENERATION, INC.
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Patent number: 8322327Abstract: An open or closed loop EFI system integrating an alcohol sensor is provided on a genset engine. The EFI system provides acceptable engine performance and efficiency when using fuels or fuel blends over a wide band and when starting from a cold state, i.e., starting the engine after the engine has not run for a relatively long period of time. The alcohol sensor enables acceptable operation while the genset engine is cold. The alcohol sensor sends data to the electronic control unit (ECU) and this data, as well as data provided by other sensors that may be available such as an air flow sensor, is used to determine the optimal air-to-fuel ratio (AFR). The ECU actuates the fuel injector which sends the correct amount of atomized fuel to mix with the air flow to be combusted. The fuel mixture, at the requested AFR, enables the engine to start and operate efficiently from a cold state even if the fuel blend has been changed from a previous operation of the engine.Type: GrantFiled: January 28, 2010Date of Patent: December 4, 2012Assignee: Cummins Power Generation, Inc.Inventors: David T. Falkowski, Nick V. Halstead, Deborah A. Klinkert, Matthew J. Ethen, Luke R. Staples