Cummins Inc.

Timothy Shipp

Daniel J Mohr

Robert Earl Hoye

Jennifer Kay Light-Holets

Andrew W Osburn

David M Barnes

Ke Wang

Adam C Cecil

Marten H Dane

Ming-feng Hsieh

Anant Puri

Rohit Saha

David J Langenderfer

David B Snyder

Jeffrey D Jones

Chengxiu Huang

Leonard W Brancamp, Jr

Chunyi Xia

Kai Zou

A system includes an internal combustion engine including a valve train comprising one or more intake valves operable in a Miller cycle and one or more exhaust valves. An electric turbo motor is electronically controllable to boost an output from a lower pressure turbocharger to a higher pressure turbocharger. An electronic control system configured to control the electric turbo motor in response to a transient condition to boost intake flow pressure to the internal combustion engine during the transient condition.

Air handling systems and controls for internal combustion engines operating with a miller cycle

Provided is a system having a hybrid powertrain having a piston internal combustion engine, and a motor/generator, and the motor generator being coupleable to a clutch and thereby a gearbox, the engine further being equipped with a valvetrain control system operable to change the engine valve operation between a first mode in which the engine can operate in a conventional internal combustion mode and a second mode in which pumping losses are reduced when the engine is not operating in a conventional internal combustion mode.

Engine and integrated hybrid powertrain

An apparatus for a combustion cylinder of a reciprocating piston engine includes a combustion cylinder end face component including a first side configured to face the combustion cylinder and extending in a radial direction of the combustion cylinder and a pocket recessed into the first side and including a recessed pocket surface. The combustion cylinder end face component may be one of a piston and a cylinder head. A thermal barrier coating is inlaid in the pocket. The thermal barrier coating includes a ceramic-metallic layer directly coating the recessed pocket surface and a ceramic layer directly coating the ceramic-metallic layer and including an outer surface facing the combustion cylinder.

Combustion cylinder end face components including thermal barrier coatings

A cylinder head includes novel designs for undercuts, contours of the outer enclosure, coolant jackets, and other cavities within an outer enclosure of the cylinder head. The cylinder head design enables the reduction of weight of the head while maintaining structural integrity of the head, and improves control of temperatures in intake side and exhaust side zones of the heads to improve operational efficiency of the engine. A method is provided for additive manufacturing of the cylinder head including the disclosed designs.

Cylinder head for internal combustion engine

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders and controlling a device to reduce the pressure in an exhaust gas recirculation loop in response to a pressure condition exceeding a threshold.

EGR flow control during high engine pressure differential conditions

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism. A cylinder deactivation operation is modified in response to determining a cyclical operation mode of the engine.

Cyclical applications for internal combustion engines with cylinder deactivation control

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders and controlling the intake manifold pressure during early intake valve opening to reduce or prevent oil consumption.

Early intake valve closing and intake manifold pressure control

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders and controlling a variable geometry turbocharger during early intake valve opening to reduce or prevent oil consumption.

Early intake valve closing and variable geometry turbocharger control

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, an aftertreatment system to treat exhaust emission from the engine, and a controller coupled to at least one sensor and configured to control a variable valve actuation mechanism to provide variable engine braking for thermal management.

Variable engine braking for thermal management

A system and method for thermal management of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate thermal management of the aftertreatment device.

Growing community of inventors

Seymour, IN, United States of America

Timothy Shipp