855 patents
Page 12 of 43
Utility
Engine arrangements with EGR systems
27 Dec 22
Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one pair of primary EGR cylinders and a plurality of pairs of non-primary EGR cylinders.
Anthony Kyle Perfetto, Samuel C. Geckler, Hongfeng H. Wang
Filed: 12 Apr 21
Utility
Variable energy ignition systems, methods, and apparatuses
27 Dec 22
A method of controlling an ignitor for a spark-ignition engine includes receiving, by a controller, at least one of fuel quality data regarding a fuel for the spark-ignition engine or a characteristic regarding the ignitor for the spark-ignition engine.
J. Steven Kolhouse, Daniel J. O'Connor, Philipe F. Saad
Filed: 19 Nov 21
Utility
Electric engine accessory control
20 Dec 22
A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.
Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
Filed: 8 Dec 20
Utility
Compressor surge control
20 Dec 22
Systems, methods and apparatus are disclosed for providing or maintaining a target surge margin at the compressor during steady state engine operating conditions and to avoid compressor surge during transients by controlling a compressor recirculation valve position to a commanded position.
Mayura H. Halbe, Ming-Feng Hsieh
Filed: 10 Dec 20
Utility
Systems and methods for selectively activating engine cylinders to maintain minimum cylinder pressure
20 Dec 22
A system for controlling operations of an engine comprises a plurality of cylinders and a controller operatively coupled to each of the plurality of cylinders.
J. Steven Kolhouse, Aaron William Beinborn, Lyle E. Kocher
Filed: 2 Jul 20
Utility
Integral flow structure within a containment cover
20 Dec 22
A filtration assembly includes a housing.
Wassem Abdalla, Joshua Luther Young, Vaibhav Pimpalte, Peter K. Herman, Ismail C. Bagci, Jithin Benjamin
Filed: 5 Dec 17
Utility
Filter element center tube cage with poke yoke feature
13 Dec 22
Various example embodiments relate to a filtration system.
Narendra Kumar Tripathi, Ruchi Lutade, Devendra Kalaskar, Santosh Bhagwat
Filed: 5 Nov 19
Utility
Apparatus, system and method for thermal management by deploying engine fueling on demand
13 Dec 22
A method includes receiving information indicative of a temperature of exhaust gas emitted from an engine operating at an engine speed, determining that the temperature of the exhaust gas is below a predefined temperature threshold, determining an engine load sized to increase the temperature of the exhaust gas above the predefined temperature threshold, increasing a load on the engine to the determined engine load while maintaining the engine at the engine speed by increasing at least one of a fuel flow rate and a fuel flow pressure of the fuel pump powered by the engine, and diverting the excess fuel from the fuel flow path upstream of the engine.
Hasan Mohammed, Jeffrey S. O'Neill
Filed: 15 Oct 21
Utility
Aftertreatment system with multiple dosing modules
13 Dec 22
An aftertreatment system (100) includes a decomposition chamber (108), a reductant pump (120), a first dosing module (110), a second dosing module (112), and a controller (133).
Changsheng C. Su, Liqiang Bian, Lei Jiang, Yi Xie
Filed: 11 Jan 19
Utility
Systems and methods for cleaning particulate filters
6 Dec 22
A method for cleaning a particulate matter filter is discussed.
Krishna Pradeep Chilumukuru, Todd M. Wieland, Luis Fernando Loo Zazueta
Filed: 10 Feb 20
Utility
Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters
6 Dec 22
An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing.
Changsheng C. Su, A. Carl McDonald, Jr., Ramakrishna Gopal Dontha, Niklas M. Schmidt, Nathan A. Ottinger, Z. Gerald Liu, James C. Clerc, Yujun Wang
Filed: 15 Feb 19
Utility
Aftertreatment system, dual fuel system, and dual fuel apparatus
6 Dec 22
Systems and apparatuses include a selective catalytic reduction system structured to receive exhaust gases from a dual fuel engine system and include a diesel exhaust fluid dosing unit, an ammonia slip catalyst positioned directly downstream of the selective catalytic reduction catalyst, an oxidation catalyst positioned directly downstream of the ammonia slip catalyst, and one or more processing circuits.
Ankit Sakuja, Srinivas Chakravarthy Bathula
Filed: 30 Nov 21
Utility
Spark plug configurations for dedicated-EGR engines
6 Dec 22
One embodiment is a system comprising an internal combustion engine having one or more non-dedicated cylinders and one or more dedicated EGR cylinders configured to provide EGR to the engine via an EGR loop, a first spark plug coupled to each of the one or more non-dedicated cylinders, and a second spark plug coupled to each of the one or more dedicated EGR cylinders, wherein the second spark plug has a physical or dimensional characteristic that is different from the first spark plug.
J. Steven Kolhouse, David J. Stroh, Daniel J. O'Connor
Filed: 6 Nov 19
Utility
Systems and methods for cold operation NOx burden reduction
6 Dec 22
A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.
Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
Filed: 7 Dec 21
Utility
Intake system for natural gas engine
6 Dec 22
Santosh Kishor Ochawar, Ashwini Rahul Mule, Rene Carrillo, Fei Li, Xinwei Meng, Yuejin Xi
Filed: 17 Mar 22
Utility
Systems and methods for predictive load response
6 Dec 22
Systems and methods for regulating transient deviations in an output voltage of a power generator system are provided.
Kai Wang
Filed: 5 May 21
Utility
System and method for controlling opposed piston engine operation for rotation direction
29 Nov 22
A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.
Hoseinali Borhan, Dwight A. Doig, Govindarajan Kothandaraman, David E. Koeberlein
Filed: 30 Aug 18
Utility
Systems and methods for preventing deactivation of a cylinder of an internal combustion engine system
29 Nov 22
An internal combustion engine system includes an internal combustion engine, a controller, and an increased brake load event communicator.
Jennifer Kay Light-Holets
Filed: 5 Sep 19
Utility
Valve train with cylinder deactivation and compression release
29 Nov 22
An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves.
Anthony Kyle Perfetto, Anshul Shambhav, Adam C. Cecil, Ryan Edward Schultz
Filed: 19 Jul 21
Utility
System and method for self-adjusting engine performance parameters during fuel quality variation
29 Nov 22
A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.
Agneya Turlapati, Robin J. Bremmer, Philipe F. Saad
Filed: 2 Nov 20