Snorkel intake dirt inertial separator for internal combustion engine

Abstract

An integrated snorkel intake inertial separator is provided to remove dust and dirt contaminants from the engine intake system prior to reaching the air cleaner. The snorkel initiates a cyclonic motion at the snorkel inlet that propagates downstream in a downpipe towards the air cleaner. The cyclonic motion is initiated by radial stators mounted in one embodiment in the snorkel inlet cap or, alternatively, further down the throat of the downpipe. The contaminants in the intake flow are transported radially outwards by the cyclonic motion and are then expelled via a series of extraction ducts formed in the snorkel downpipe. The extraction vents are perpendicular to the cyclonic flow allowing dirt, dust and water particles to be extracted by means of cyclonic motion and gravity. The exit slots are located in regions of low pressure generated by the external aerodynamic airflow around the snorkel.

Dependencies are inferred from the claim text.