Patents Assigned to Cummins Power Generation Limited
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Patent number: 12074442Abstract: Systems and methods for managing reactive power during low voltage ride through are provided. Responsive to detecting a fault on a power grid, a controller may identify a power regulation mode of the generator system. The controller can switch the power regulation mode to an offset power regulation mode of the generator system responsive to identifying the power regulation mode. The controller may adjust a value of a parameter of the generator system from a normal value to an offset value, wherein the parameter is selected based on the offset power regulation mode. The controller can maintain the value of the parameter as the offset value for a period of time. After the period of time, the controller can modify the value of the parameter from the offset value to the normal value, and the power regulation mode from the offset power regulation mode to the identified power regulation mode.Type: GrantFiled: March 6, 2023Date of Patent: August 27, 2024Assignee: Cummins Power Generation LimitedInventors: Ankit Vinodchandra Patel, Apoorv Prakash Hiremath, Raghunandan Subramaniam
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Patent number: 12057700Abstract: Systems and methods for controlling and methods for controlling the power factor in a generator system are provided. In some embodiments, the generator system includes one or more generators configured to supply power to a power grid, an automatic voltage regulator configured to regulate a voltage of an output of the generator to a set voltage and regulate a power factor of the output to a set power factor, and a controller. The controller is configured to detect a fault on the output and to adjust the set power factor of the automatic voltage regulator based on the fault. The controller is further configured to ramp the set power factor from the adjusted value to an initial value over a set period of time.Type: GrantFiled: October 1, 2020Date of Patent: August 6, 2024Assignee: Cummins Power Generation LimitedInventors: Apoorv P. Hiremath, Ankit Vinodchandra Patel, Philippe Goesel, Sudharsana Govindaswami
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Publication number: 20240175405Abstract: An internal combustion engine system includes a cylinder block, a plurality of bite rings, a cylinder head, and a head gasket. The cylinder block defines a combustion cylinder. The plurality of bite rings encompass the cylinder. The cylinder head is coupled to the cylinder block and covers the combustion cylinder. The head gasket is disposed between the cylinder head and the cylinder block and is structured to engage with the plurality of bite rings. The cylinder head may further include an expansion groove that is disposed between adjacent ones of the plurality of bite rings and extends in a circumferential direction around the cylinder head.Type: ApplicationFiled: March 22, 2022Publication date: May 30, 2024Applicant: Cummins Power Generation LimitedInventors: Robert Harries, Simon Anthony Burge
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Patent number: 11929618Abstract: Systems and methods for detecting abrupt voltage changes and supplying reactive power support are provided. In some embodiments, a genset connected to a power grid can identify a maximum voltage value and a minimum voltage value. The maximum voltage value and the minimum voltage value are based on an average of a plurality of mains voltage values. The genset may detect an abrupt voltage change by determining whether an instantaneous mains voltage value is above the maximum voltage value or below the minimum voltage value. The genset can adjust an amount of reactive current either supplied to the power grid or consumed by the genset for a period of time, responsive to detecting the abrupt voltage change.Type: GrantFiled: October 28, 2021Date of Patent: March 12, 2024Assignee: Cummins Power Generation LimitedInventors: Raghunandan Subramaniam, Adunola Christiana Fashogbon, Apoorv Prakash Hiremath, Ankit Vinodchandra Patel
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Publication number: 20230283075Abstract: Systems and methods for managing reactive power during low voltage ride through are provided. Responsive to detecting a fault on a power grid, a controller may identify a power regulation mode of the generator system. The controller can switch the power regulation mode to an offset power regulation mode of the generator system responsive to identifying the power regulation mode. The controller may adjust a value of a parameter of the generator system from a normal value to an offset value, wherein the parameter is selected based on the offset power regulation mode. The controller can maintain the value of the parameter as the offset value for a period of time. After the period of time, the controller can modify the value of the parameter from the offset value to the normal value, and the power regulation mode from the offset power regulation mode to the identified power regulation mode.Type: ApplicationFiled: March 6, 2023Publication date: September 7, 2023Applicant: Cummins Power Generation LimitedInventors: Ankit Vinodchandra Patel, Apoorv Prakash Hiremath, Raghunandan Subramaniam
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Patent number: 11600994Abstract: Systems and methods for managing reactive power during low voltage ride through are provided. Responsive to detecting a fault on a power grid, a controller may identify a power regulation mode of the generator system. The controller can switch the power regulation mode to an offset power regulation mode of the generator system responsive to identifying the power regulation mode. The controller may adjust a value of a parameter of the generator system from a normal value to an offset value, wherein the parameter is selected based on the offset power regulation mode. The controller can maintain the value of the parameter as the offset value for a period of time. After the period of time, the controller can modify the value of the parameter from the offset value to the normal value, and the power regulation mode from the offset power regulation mode to the identified power regulation mode.Type: GrantFiled: October 29, 2020Date of Patent: March 7, 2023Assignee: Cummins Power Generation LimitedInventors: Ankit Vinodchandra Patel, Apoorv Prakash Hiremath, Raghunandan Subramaniam
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Publication number: 20220376506Abstract: Systems and methods for controlling and methods for controlling the power factor in a generator system are provided. In some embodiments, the generator system includes one or more generators configured to supply power to a power grid, an automatic voltage regulator configured to regulate a voltage of an output of the generator to a set voltage and regulate a power factor of the output to a set power factor, and a controller. The controller is configured to detect a fault on the output and to adjust the set power factor of the automatic voltage regulator based on the fault. The controller is further configured to ramp the set power factor from the adjusted value to an initial value over a set period of time.Type: ApplicationFiled: October 1, 2020Publication date: November 24, 2022Applicant: Cummins Power Generation LimitedInventors: Apoorv P. Hiremath, Ankit Vinodchandra Patel, Philippe Goesel, Sudharsana Govindaswami
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Patent number: 11506118Abstract: A genset module coupling assembly includes a cross-bar of a module chassis oriented orthogonal to an engine neutral axis of vibration defined by an engine mounted on an engine chassis, a first bracket coupled to the cross-bar on a first side of the engine neutral axis of vibration, and a second bracket coupled to the cross-bar on a second side of the engine neutral axis of vibration. The first bracket and the second bracket are positioned to minimize communication of vibrations from the engine chassis to the module chassis.Type: GrantFiled: December 22, 2020Date of Patent: November 22, 2022Assignee: Cummins Power Generation LimitedInventors: Peter A. Goleczka, Gordon A. Read
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Patent number: 11499451Abstract: A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.Type: GrantFiled: November 16, 2021Date of Patent: November 15, 2022Assignee: Cummins Power Generation LimitedInventors: Simon Anthony Burge, Alex Edward Priestley, Jordan B. Pitcher
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Publication number: 20220302860Abstract: Systems and methods for regulating an outlet coolant temperature of a genset and an inlet coolant temperature of the genset are provided. A load condition of the genset may be determined. An operating mode can be selected from between a first mode associated with a first load condition and a second mode associated with a second load condition responsive to determining the load condition of the genset. The first mode and the second mode may be configured to determine a target inlet coolant temperature using one or more control loops. The target inlet coolant temperature may be determined using the selected operating mode, a target outlet coolant temperature and the outlet coolant temperature. The outlet coolant temperature may be regulated based on the determined target inlet coolant temperature and the inlet coolant temperature by adjusting an operation of one or more coolant valves.Type: ApplicationFiled: March 11, 2022Publication date: September 22, 2022Applicant: Cummins Power Generation LimitedInventors: Ankit Vinodchandra Patel, Raghunandan Subramaniam, Philippe Goesel, Apoorv Prakash Hiremath
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Publication number: 20220140605Abstract: Systems and methods for detecting abrupt voltage changes and supplying reactive power support are provided. In some embodiments, a genset connected to a power grid can identify a maximum voltage value and a minimum voltage value. The maximum voltage value and the minimum voltage value are based on an average of a plurality of mains voltage values. The genset may detect an abrupt voltage change by determining whether an instantaneous mains voltage value is above the maximum voltage value or below the minimum voltage value. The genset can adjust an amount of reactive current either supplied to the power grid or consumed by the genset for a period of time, responsive to detecting the abrupt voltage change.Type: ApplicationFiled: October 28, 2021Publication date: May 5, 2022Applicant: Cummins Power Generation LimitedInventors: Raghunandan Subramaniam, Adunola Christiana Fashogbon, Apoorv Prakash Hiremath, Ankit Vinodchandra Patel
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Patent number: 10934931Abstract: Systems and apparatuses include an alternator and a gearbox. The alternator includes an alternator housing defining an alternator flange, a rotor and stator positioned within the alternator housing, an alternator shaft coupled to the rotor for rotation about a central axis, and a first alternator bearing positioned distal from the alternator flange and supporting the alternator shaft. The gearbox includes a gearbox housing including a first flange structured to rigidly couple to an engine, and a second flange structured to rigidly couple to the alternator flange, an input shaft rotatable about the central axis, a gearbox bearing coupled to the gearbox housing and supporting the input shaft, an epicyclic gear train, and an output plate coupled to the epicyclic gear train and the alternator shaft.Type: GrantFiled: June 22, 2018Date of Patent: March 2, 2021Assignee: Cummins Power Generation LimitedInventors: Peter A. Goleczka, Kevan John Simon
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Patent number: 10924044Abstract: A method of reducing cold startup time of a genset which includes an engine and a generator for providing a requested power to a utility grid or load comprises determining if the generator is electrically coupled to a utility grid or load. In response to determining the generator is electrically coupled to the utility grid or load, a speed bias value is controlled in response to the power being produced by the genset. The speed bias signal represents a difference between a target power output and a current power output of the genset. The power of the engine is controlled using the speed bias value.Type: GrantFiled: September 19, 2016Date of Patent: February 16, 2021Assignee: Cummins Power Generation LimitedInventors: Ikenna Oguguo, Philippe Goesel
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Patent number: 10924043Abstract: Systems and apparatuses include a control unit structured to communicate with a first generator set, a second generator set, and a third generator set, operate the first generator set as an output generator in an exercise mode, and operate the second generator set and the third generator set as load generators in the exercise mode to use electrical power produced by the first generator set. The second generator set uses a second genset portion of the electrical power and the third generator set uses a third genset portion of the electrical power.Type: GrantFiled: November 26, 2018Date of Patent: February 16, 2021Assignee: Cummins Power Generation LimitedInventors: Ikenna Oguguo, Philippe Goesel, Andrew C. Walseth
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Patent number: 10876471Abstract: A genset enclosure assembly comprises a first enclosure defining a first internal volume. A genset engine is positioned within the first internal volume. A first opening is defined in a first sidewall of a first side of the first enclosure. The genset enclosure assembly also includes a second enclosure defining a second internal volume. The second enclosure is positioned adjacent to the first side and removably coupled to the first side of the first enclosure. A first genset module is positioned in the second internal volume and operably coupled to the genset engine through the first opening.Type: GrantFiled: April 11, 2017Date of Patent: December 29, 2020Assignee: Cummins Power Generation LimitedInventors: Peter A. Goleczka, Gordon A. Read
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Patent number: 10690074Abstract: A method of reducing cold startup time of a genset includes providing a lubricant to the genset at predetermined time intervals before a genset startup. The lubricant is heated to a predetermined lubricant temperature using an external heating system. A high temperature coolant of the genset is heated to greater than a predetermined high temperature coolant temperature. The speed of the engine is ramped to a target speed continuously without pausing at a speed lower than the target speed. Genset electrical parameters of the genset are synchronized to utility grid or load electrical parameters of the utility grid or load. The genset is electrically coupled to the utility grid or load such that the synchronizing and electrically coupling are performed within a predetermined synchronization time. A fueling rate and a spark timing is adjusted based on a power being produced by the genset.Type: GrantFiled: September 19, 2016Date of Patent: June 23, 2020Assignee: Cummins Power Generation LimitedInventors: Ikenna Oguguo, Philippe Goesel, Dafydd Roberts, Sean Curley, James Meadows
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Patent number: 10608503Abstract: A generator set comprises an engine including a crankshaft rotatable in a first direction about a longitudinal axis of the generator set, and a generator including a generator shaft. A gearbox is positioned between the engine and the generator, all mounted on a chassis. The gearbox couples the crankshaft to the generator shaft. The gearbox includes a gearbox housing having a first end and a second end. The first end is coupled to an engine first end and the second end is coupled to a generator first end. The gearbox also includes a gear set including a plurality of gears, a first gear shaft coupled to a crank shaft first end, and a second gear shaft coupled to a generator shaft first end. The crankshaft and at least a portion of the plurality of gears, and the generator shaft are axially aligned along the longitudinal axis of the generator set.Type: GrantFiled: April 26, 2019Date of Patent: March 31, 2020Assignee: Cummins Power Generation LimitedInventors: Paul D. Johnson, Kent A. Lobsiger, Sze Kwan Cheah, Tejaskumar Rajendrakumar Amin, Peter Andrew Goleczka
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Publication number: 20190252946Abstract: A generator set comprises an engine including a crankshaft rotatable in a first direction about a longitudinal axis of the generator set, and a generator including a generator shaft. A gearbox is positioned between the engine and the generator, all mounted on a chassis. The gearbox couples the crankshaft to the generator shaft. The gearbox includes a gearbox housing having a first end and a second end. The first end is coupled to an engine first end and the second end is coupled to a generator first end. The gearbox also includes a gear set including a plurality of gears, a first gear shaft coupled to a crank shaft first end, and a second gear shaft coupled to a generator shaft first end. The crankshaft and at least a portion of the plurality of gears, and the generator shaft are axially aligned along the longitudinal axis of the generator set.Type: ApplicationFiled: April 26, 2019Publication date: August 15, 2019Applicant: Cummins Power Generation LimitedInventors: Paul D. Johnson, Kent A. Lobsiger, Sze Kwan Cheah, Tejaskumar Rajendrakumar Amin, Peter Andrew Goleczka
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Patent number: 10305350Abstract: A generator set comprises an engine including a crankshaft rotatable in a first direction about a longitudinal axis of the generator set, and a generator including a generator shaft. A gearbox is positioned between the engine and the generator, all mounted on a chassis. The gearbox couples the crankshaft to the generator shaft. The gearbox includes a gearbox housing having a first end and a second end. The first end is coupled to an engine first end and the second end is coupled to a generator first end. The gearbox also includes a gear set including a plurality of gears, a first gear shaft coupled to a crank shaft first end, and a second gear shaft coupled to a generator shaft first end. The crankshaft and at least a portion of the plurality of gears, and the generator shaft are axially aligned along the longitudinal axis of the generator set.Type: GrantFiled: November 18, 2016Date of Patent: May 28, 2019Assignee: Cummins Power Generation LimitedInventors: Paul D. Johnson, Kent A. Lobsiger, Sze Kwan Cheah, Tejaskumar Rajendrakumar Amin, Peter Andrew Goleczka
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Publication number: 20190120134Abstract: A genset enclosure assembly comprises a first enclosure defining a first internal volume. A genset engine is positioned within the first internal volume. A first opening is defined in a first sidewall of a first side of the first enclosure. The genset enclosure assembly also includes a second enclosure defining a second internal volume. The second enclosure is positioned adjacent to the first side and removably coupled to the first side of the first enclosure. A first genset module is positioned in the second internal volume and operably coupled to the genset engine through the first opening.Type: ApplicationFiled: April 11, 2017Publication date: April 25, 2019Applicant: Cummins Power Generation LimitedInventors: Peter A. Goleczka, Gordon A. Read