Method and apparatus for indicating a potential fluid filter problem

US7168304B2 · kind B2 · utility

Assignee

• International Engine Intellectual Property Company, LLC · US

Inventors

• James T. Beaucaire · Glen Ellyn, US
• Steven Dickerson · Lake in the Hills, US
• Michael Majewski · Joliet, US

Key dates

• Filing date: Oct 30, 2003
• Grant date: Jan 30, 2007
• Expiry date: Oct 30, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M3/3227
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A fluid pressure near a filter (103) is measured and compared (307) to a predetermined value that is based on one or more engine operating parameters. When the measured fluid pressure deviates enough from the predetermined value by an established amount, an indication of the deviation may be provided to notify of a potential problem with the filter (103), such as obstruction, restriction, or some form of clogging.