Patent ID: 9675920
Date: 2017-06-13
CPC Classifications: B01D,F02M

Claim:
1. A precleaner for an internal combustion engine, the precleaner comprising: a sleeve configured to be coupled to an intake conduit associated with an internal combustion engine; a separator panel coupled to the sleeve and configured to separate debris from air flowing through the separator panel and into the intake conduit; a cover coupled to the sleeve; and an apparatus for partially blocking airflow in the precleaner, the apparatus including: a stationary barrier mounted in the precleaner, and a movable barrier coupled to the stationary barrier and configured to move between an open position and a closed position in response to changes in an air flow rate of air passing through the precleaner, wherein, when the movable barrier moves from the open position toward the closed position, flow of air through a first portion of the separator panel is reduced, and an air flow rate of air passing through a second portion of the separator panel is increased, and wherein, when the movable barrier moves from the closed position toward the open position, an air flow rate of air passing through the first portion of the separator panel is substantially the same as the air flow rate of air passing through the second portion of the separator panel.