US Patent:
20170203241, Jul 20, 2017
Inventors:
- Columbus IN, US
Dane P. Miller - Monona WI, US
Barry M. Verdegan - Stoughton WI, US
Shantanu Nadgir - Columbus IN, US
W. Beale Delano - Columbus IN, US
Andry Lesmana - Columbus IN, US
Jitesh Panicker - Columbus IN, US
Jeffrey L. Oakes - Columbus IN, US
Assignee:
Cummins Filtration IP, Inc. - Columbus IN
International Classification:
B01D 35/147
B01D 46/00
B01D 46/44
B01D 35/00
F02M 35/08
B01D 29/56
B01D 29/60
F02M 35/02
F02M 35/024
B01D 46/46
B01D 35/26
Abstract:
Filtration systems having a normal filtration mode and an enhanced filtration mode are described. In some arrangements, the filtration system is an air filtration system having a primary air filter element, a pre-cleaner, and a pre-cleaner bypass valve. Based on feedback from an intake air quality sensor the bypass valve is either opened or closed to selectively route intake air through the pre-cleaner during sensed dirty air operating conditions (e.g., heavy dust or moisture concentrations). In other arrangements, the filtration system is a liquid filtration system (e.g., a fuel or oil a secondary filter. The filtration system selectively routes the liquid being filtered through the main filter, the secondary filter, or a combination thereof depending on a detected event or sensed characteristic of the liquid.