Particulate matter filter assembly with a flow device

US8043394B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Rahul Mital · Rochester Hills, US
• David Brown · Brighton, US
• Jianwen Li · Beverly Hills, US
• Michael Christopher Luckham · Cadillac, US
• Kevin B. Fuqua · San Diego, US
• Kasser A. Jaffri · Rochester, US
• Linda Garcia · Royal Oak, US

Key dates

• Filing date: Oct 15, 2008
• Grant date: Oct 25, 2011
• Expiry date: Sep 12, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/30
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A particulate matter (PM) filter assembly includes a PM filter that filters PM from an exhaust stream and that includes an entry face facing a first direction of flow of the exhaust stream, and a swirl element disposed in the exhaust stream and that includes a blade that directs a portion of the exhaust stream in a second direction of flow that is different than the first direction of flow. The blade directs the portion of the exhaust stream to distribute the exhaust stream over a frontal area of the entry face of the PM filter. A related method of filtering particulate matter from an exhaust stream is also provided.