Engine air filter replacement indication system

US8534123B2 · kind B2 · utility

Assignee

• Cummins Filtration IP, Inc. · US

Inventors

• Peter K. Herman · Cookeville, US
• Roger L. Zoch · McFarland, US
• Scott W. Schwartz · Cottage Grove, US
• Mark P. Adams · Madison, US

Key dates

• Filing date: Jun 15, 2011
• Grant date: Sep 17, 2013
• Expiry date: Dec 20, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G07C5/0808
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Disclosed are methods and systems for monitoring and indicating the optimal replacement interval for a filter. In particular, the methods and systems may be utilized for monitoring and indicating the optimal replacement interval of an air filter in an internal combustion engine based on parameters that include air filter plugging rate data, engine duty cycle data, pressure drop across the air filter, penalty on fuel consumption, and the cost of air filter replacement.