Methods and systems for exhaust gas recirculation cooler regeneration

US8903632B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Eric David Peters · Erie, US
• Roy James Primus · Niskayuna, US
• Paul Lloyd Flynn · Lawrence Park, US
• John Stephen Roth · Wesleyville, US
• Franz-Joseph Foltz · Lawrence Park, US
• James Robert Mischler · Lawrence Park, US
• Luke Henry · Erie, US
• Roshan Shekhar Kotian · Erie, US
• Michael Easter · Erie, US
• Stephen Geyer · Greencastle, US

Key dates

• Filing date: May 14, 2012
• Grant date: Dec 2, 2014
• Expiry date: Nov 28, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Various methods and systems are provided for regenerating an exhaust gas recirculation cooler. One example method includes, initiating an EGR cooler regeneration mode, wherein the EGR cooler regeneration mode comprises changing a fuel distribution of a donor cylinder group relative to a non-donor cylinder group of an engine, and increasing at least one of engine speed or load of the engine.