Fev Gmbh

Am General LLC

Marek Tatur

Dean Tomazic

Martin Laermann

Harsha Nanjundaswamy

Taylor W Holland

Jeffrey T Dowell

The present invention provides an internal combustion engine with a self-cleaning exhaust gas recirculation (EGR) system. The engine can have an intake, a combustion chamber, and an exhaust with the EGR system accepting exhaust gas from the exhaust and supplying exhaust gas to the intake. The internal combustion engine also has a hydrogen source in fluid communication with a hot side of the EGR system, the hydrogen source affording hydrogen to flow into and through the EGR system and remove at least a portion of carbon-containing deposits therewithin.

Self-cleaning exhaust gas recirculation system

The present invention discloses an exhaust system for an internal combustion engine that provides diesel particulate filter (DPF) failure detection and/or monitoring of nonmethane hydrocarbons (NMHC) for an internal combustion engine. The system can include a main exhaust duct and a secondary exhaust line operative for exhaust gas to pass therethrough. The system has an oxidation catalyst and a main particulate filter located in line with the main exhaust duct. A monitoring particulate filter is also included and located within the secondary exhaust line. The secondary exhaust line and the monitoring particulate filter are located downstream from the main particulate filter.

Exhaust system for internal combustion engine

A variable exhaust gas flow deflector for an internal combustion engine is disclosed. The deflector can include a blade located at least partially within an exhaust gas flow of the engine, the blade having a first position and a second position. The blade can move between the first position and the second position as a function of at least one parameter and/or condition of the exhaust gas and/or the internal combustion engine.

Variable exhaust gas deflector

An exhaust control system for an internal combustion engine having a plurality of actuators wherein each actuator controls a predetermined engine parameter. A plurality of sensors are also associated with the engine and each sensor provides an output representative of an engine operating condition. The control system includes a PID controller associated with each actuator and in which each PID controller has an input, an output and a feedback between the input and the output. A distribution function circuit is operatively connected in series with the inputs of the PID controller. The distribution function circuit receives an error signal representative of the difference between a target value and an actual value of one or more engine operating conditions, previously determined control factor values and the feedback from each PID controller as input signals. The distribution function circuit varies the input to each PID controller as a function of the distribution function input signals.

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Pleasant Ridge, MI, United States of America

Marek Tatur