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US 2009/0151354 A1Published application
Variable geometry turbocharger extender idle vane cycle
AssigneeDetroit Diesel Corporation
InventorsDavid J. Dronzkowski, Matthew T. Baird
Life of this patent
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Abstract
A method to operate and electronic controlled internal combustion engine, and particularly a heavy duty diesel engine, to effect vane cleaning of a variable geometry turbocharger.
Claims13
A method for cleaning soot deposits from at least one vane of a variable geometry turbocharger equipped with a vane actuator;
- said turbocharger exposed to an internal combustion exhaust stream, comprising:
- determining an operational status of said engine while simultaneously determining an operational status of said turbocharger within a predetermined period of time according to a timer;
- cycling said vanes in said turbocharger for a predetermined number of times according to said time;
- and returning said turbocharger to normal operation and resetting said timer.
1 more element
Dependencies are inferred from the claim text.