Patent ID: 7806948
Filing Date: 2010-10-05
Classification: B01D,Y02A

Abstract:
1. Portable equipment adapted for movement from work site to work site and powered by an internal combustion engine which may require operation in an environment where the ambient air is contaminated by dust particles, said engine requiring an ambient air and fuel mixture for said operation, and said ambient air contamination being detrimental to said internal combustion engine; said equipment including: a filter house/system including multiple filtering bags contained at least partially in a housing, an inlet opening in said filter house through which contaminated air enters the housing and surrounds the filtering bags, a chamber sealed from contaminated air surrounding the bags and open to the interior of the bags and further including an air conduit for conveying filtered air from the chamber directly to an air intake of said internal combustion engine that is otherwise closed to said ambient air, whereby said intake draws filtered air from the chamber for mixing with the fuel, which air is substantially free of said contaminants.