Abstract: A turbocharged engine (20, 20?, 20?, 20??) counteracts plugging of a diesel oxidation catalyst (DOC 48) by causing a first portion of exhaust from one or more exhaust manifolds (26, 28) to enter the DOC after having passed through the turbocharger (30), and causing a second portion of the exhaust (HEG) to enter the DOC without passing through the turbocharger.

Abstract: An engine control system (22) of a diesel engine (20) that powers a motor vehicle processes data in execution of a strategy (FIG. 4) to provide control of both timing and duration of forced regeneration of a diesel particulate filter (42). The overall strategy is a hybrid of model-based and closed-loop control strategies. Redundant elements of the strategy (FIG. 6) determine when forced regeneration is called for. Forced regeneration is initiated by retarding the timing of the start of main fuel injection (100). Fueling is then adjusted (98) both to enhance catalytic action and to make the process transparent to a driver of the vehicle.

Abstract: An engine control system (22) of a diesel engine (20) that powers a motor vehicle processes data in execution of a strategy (FIG. 4) to provide control of both timing and duration of forced regeneration of a diesel particulate filter (42). The overall strategy is a hybrid of model-based and closed-loop control strategies. Redundant elements of the strategy (FIG. 6) determine when forced regeneration is called for. Forced regeneration is initiated by retarding the timing of the start of main fuel injection (100). Fueling is then adjusted (98) both to enhance catalytic action and to make the process transparent to a driver of the vehicle.

Abstract: The invention relates to a method for identifying a Mycobacterium species responsible for a mycobacterial infection in human or animal, comprising selecting a suitable mycobacterial species and strain; preparing at least one mycobacterial antigen, respectively antigen preparation; binding the antigen, respectively the antigen preparation to a suitable carrier; causing the binding antigen to react with antibodies from serum of an individual infected with a Mycobacterium species; making visible antigen-antibody reactions for a suitable antibody (sub-)class; and identifying the responsible Mycobacterium species on the basis of the reactions which are made visible. The invention further provides a diagnostic kit which takes the form of a dip-stick on which is arranged a carrier strip with mycobacterial antigens binding thereto, and means for visualizing antigen-antibody reactions occurring on the carrier after contact with the serum for testing.

Abstract: A hydraulically-assisted engine valve actuator for assisting in the actuation of an engine valve, includes a servo piston being operably coupled to the engine valve. A translatable pilot valve is in fluid communication with the servo piston and the main piston and is operably coupled to and controlled by a pilot valve positioning system. The pilot valve positioning system controls a translational stroke of the pilot valve to meter hydraulic fluid under pressure to and from the servo piston. A stroke magnifier magnifies a stroke of the pilot valve positioning system.