Patent ID: 6623239
Filing Date: 2003-09-23
Classification: F01N,F02B,F04D,F05B,Y02T

Abstract:
A turbocharger having a bypass port compressor with a noise reduction device comprising:a compressor housing having an air inlet and a pressurized air outlet, the inlet having an outer portion and an inner portion, the inner portion having a central channel and an annular channel disposed concentrically around the central channel, with an inner radial wall disposed between the central and annular channel; a compressor wheel having a plurality of vanes, the wheel interposed between the inlet and the outlet; and an inner deflector disposed within the annular channel and having a first surface substantially perpendicular to a wall of the channel and extending radially into the channel, and having a second surface coupled to the first surface, and substantially parallel to a wall of the channel and extending axially along the channel, such that flow into and out of the annular channel of the inner portion of the inlet is partially obstructed; wherein the central channel and the annular channel of the inner portion of the inlet are each in communication with the compressor wheel.