855 patents
Page 17 of 43
Utility
Systems and methods for ultra-low NOx cold start warmup control and fault diagnosis
30 Aug 22
Systems and apparatuses include an aftertreatment system including a catalyst, and a controller coupled to the aftertreatment system.
Avra Brahma, Yongsoon Yoon
Filed: 25 Mar 20
Utility
Dual rail pressure control for engine noise improvement
30 Aug 22
A method is provided for controlling operation of a fueling system including a fuel pump driven by an engine geartrain and a fuel accumulator supplied fuel by the fuel pump, comprising: determining whether an operating parameter of the engine is less than a threshold value; responding to the operating parameter being less than the threshold value by causing an inlet valve of the fuel pump to operate in a 100 percent fill mode, whereby a pumping chamber in the fuel pump is approximately fully filled for at least one pumping cycle; determining whether a fuel pressure in the fuel accumulator is greater than a desired value while the inlet valve is in the 100 percent fill mode; and responding to the fuel pressure being greater than the desired value by activating an outlet valve of the fuel accumulator to drain fuel in the fuel accumulator to a fuel tank.
Dhanesh M. Purekar
Filed: 12 Dec 18
Utility
Fuel filter cartridge with keyed profile
23 Aug 22
A filtration system comprises a filter head assembly comprising an outlet slot, valve element, and latch element.
Priti Vishwas Chavan, Anand Vijayan Menon, Jeff A. Bowerman, Eric Roysdon, Aarol Duane Bright, Anil Ishwar Sawant
Filed: 16 Aug 18
Utility
Engine brake ramping
23 Aug 22
Systems and methods for controlling engine brake disengagement in a vehicle include a controller receiving a signal indicative of a command to disengage an engine brake while the vehicle engine is in engine brake engaged condition.
Daniel Payan Olivas, Sneha Padaki
Filed: 29 May 20
Utility
Exhaust gas aftertreatment system with a selective catalytic reduction catalyst member upstream of a particulate filter
23 Aug 22
An exhaust gas aftertreatment system for an internal combustion engine includes an inlet conduit, a reductant decomposition chamber, a first selective catalytic reduction (SCR) catalyst member, a second SCR catalyst member, a mixing chamber, a particulate filter, a reductant delivery system, and a hydrocarbon delivery system.
Rohan A. Siddhanthi, Neal W. Wallace, Michael Haas, Michael J. Ruth, Krishna Pradeep Chilumukuru, Shirish S. Punde
Filed: 21 Dec 20
Utility
High pressure diesel fuel pump pumping element
23 Aug 22
The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a pumping chamber and a check valve assembly having a first insert including an angled passage in flow communication with a fuel outlet, and a second insert being disposed adjacent the pumping chamber, the second insert including a central bore in flow communication with a fuel inlet, a plurality of through holes in flow communication with the pumping chamber.
Anthony A. Shaull, Tunji Adejumo, Luke Allen Jones, Yip Kwok, John D. Lane, David M. Rix, Wesley R. Thayer
Filed: 15 Dec 15
Utility
Pass through timing pin system
16 Aug 22
A system for timing a crankshaft and a camshaft in an internal combustion engine having a cylinder head structure with a timing pin hole and a camshaft cavity.
Taylor Lee Pearson, Steven John Small, Pablo Aguilar Diaz Tejeiro, Nicklas E. Sherman, Justin Kale Wright, Amey Ashok Vaze, Kunal Sanjeev Kapadnis
Filed: 8 Oct 21
Utility
Port shapes for enhanced engine breathing
16 Aug 22
A cylinder having at least one intake port and at least one exhaust port, wherein the at least one intake port includes an upper surface and a lower surface, the upper surface of the intake port having an entrance portion and an outlet portion, the upper surface arced from the entrance portion to the outlet portion.
Randall L. Zehr, Robert G. Sperry
Filed: 7 Jul 20
Utility
Water intrusion cover for sensor probe
16 Aug 22
A water intrusion cover for a sensor probe in an exhaust system is provided.
Advait Sunil Vaishampayan, Samantha Stang, Sachin Sharma, Srinivasan Balu, Tushar Ravindra Dhinge
Filed: 25 Aug 20
Utility
Diagnostic system and method for detecting internal combustion engine faults using exhaust pressure readings
16 Aug 22
A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
Shikui Kevin Chen
Filed: 8 Sep 21
Utility
Dedicated thermal management for an SCR system
9 Aug 22
An aftertreatment system includes: a selective catalytic reduction (SCR) system configured to decompose constituents of exhaust gas; an exhaust conduit configured to deliver the exhaust gas to the SCR system; a hydrocarbon insertion assembly; a valve operably coupled to the exhaust conduit, the valve configured to be selectively opened so as to allow a first gas to enter the exhaust conduit and mix with the exhaust gas; and a controller configured to: determine a SCR system temperature, in response to the SCR system temperature being less than a target temperature, instruct the hydrocarbon insertion assembly to insert hydrocarbons into the exhaust gas, and in response to the SCR system temperature being greater than the target temperature, instruct the valve to open so as to allow the first gas to enter the exhaust conduit, a first gas temperature of the first gas being lower than the SCR system temperature.
Sriram Srinivasan
Filed: 18 Dec 17
Utility
Reductant injection in exhaust manifold
9 Aug 22
An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature.
John K. Heichelbech, John G. Buechler, Richard J. Ancimer, Thomas M. Yonushonis
Filed: 29 Jun 21
Utility
Filter element with tapered perimeter
2 Aug 22
Various example embodiments relate to filter elements.
Christopher E. Holm, Scott W. Schwartz
Filed: 11 Jul 17
Utility
Coasting management control of a vehicle with a road speed governor
2 Aug 22
A system, method, and apparatus includes management of coasting during operation of a vehicle having an engine that is selectively engageable to a driveline, a cruise control mode of operation, and a road speed governor mode of operation.
Joseph R. Dynes, Nathanael G. Long
Filed: 21 Jan 20
Utility
Systems and methods for optimizing engine-aftertreatment system operation
2 Aug 22
Systems and methods for optimizing a performance variable for an engine system.
Gayatri Adi, Kartavya Neema, Paul V. Moonjelly, Karla Carale Stricker Fuhs, Chinmay Rao
Filed: 2 Mar 18
Utility
Predictive pole slip using time synchronization
2 Aug 22
Systems and apparatuses include an alternator including a stator and a rotor structured to be coupled to a crankshaft of a prime mover, and processing circuits structured to: determine a crankshaft position, associate a crankshaft timestamp with the crankshaft position, determine a stator voltage waveform position, associate a stator voltage waveform timestamp with the stator voltage waveform position, determine a common time base using the crankshaft timestamp and the stator voltage waveform timestamp, determine a rotor position based on the crankshaft position and associated with the common time base, determine a load angle based on the rotor position and the stator voltage waveform position using the common time base, compare the load angle to a stability limit, and transmit a predicted pole slip signal to at least one of the prime mover or the alternator to inhibit a pole slip event when the load angle exceeds the stability limit.
Sandeep Kor, Dennis McDonald
Filed: 23 Aug 21
Utility
Piston with multiaxial bearing and piston bowl
2 Aug 22
The present disclosure provides a piston for an internal combustion engine, the piston having a piston body including a first bearing saddle defining a first axis and a second bearing saddle defining a second axis, the first axis being parallel to and spaced from the second axis.
Kevin C. Augustin, Sr., Florin Mocanu, Eric M. Osecky, Robert G. Sperry
Filed: 17 Dec 20
Utility
Assembled portion of a solid oxide fuel cell and methods for inspecting the same
2 Aug 22
An intermediate solid oxide fuel cell (SOFC) stage and methods for inspecting an assembled portion of an SOFC are presented.
Todd Michael Striker, Matthew Joseph Alinger, Luc Stephane Leblanc, Nicole Virginia Gonyeau
Filed: 17 Dec 18
Utility
Systems and methods for engine brake diagnostics and control
26 Jul 22
A system for diagnosing engine braking performance of an engine comprising a plurality of cylinders comprises an exhaust manifold pressure sensor configured to detect an exhaust manifold pressure corresponding to exhaust gas emitted from a plurality of cylinders.
Adam C. Cecil, Adrian P. Dale, Anshul Shambav, Anthony K. Perfetto, David J. Stroh, J. Steven Kolhouse, Ryan E. Schultz, Samuel C. Geckler, Thomas M. Yonushonis
Filed: 20 Nov 19
Utility
Multi-vehicle load delivery management systems and methods
26 Jul 22
Disclosed are various techniques to optimize load delivery management of multiple vehicles along route.
Archit N. Koti, Jairo Andres Sandoval Leon, Vivek Anand Sujan, Patrick J. Shook, Apurva Arvind Chunodkar, Kenneth M. Follen
Filed: 5 Jun 19