Intake duct for turbocharger of internal combustion engine, has blades of two different types, where one blade has flat shape and another blade has shape appropriated to pre-rotate gas flow at inlet of compressor impeller

摘要

The duct (1) has a set of blades (4) placed inside the duct. The blades modify the gas flow near a compressor impeller (2), where the blades are of two different types (4a, 4b). The blade (4a) has a flat shape and the blade (4b) has a shape appropriated to pre-rotate the gas flow. The blade (4b) has a length more than a length of the blade (4a). The blades (4a, 4b) are alternatively distributed along a longitudinal axis (X) of the duct. An independent claim is also included for a turbocharger of an internal combustion engine of a motor vehicle.