Patent ID: 7179051

Claim:
A compressor housing for a compressor impeller comprising: an outer shell including an outer section, a midsection and a center section, the midsection forming an upper volute wall portion of the compressor housing, and the center section forming an inlet concentric with the compressor impeller, a diffuser including a center section, a base section, and an outer section, the center section having a substantially cylindrical outer edge received in a complementary substantially cylindrical mating surface in the outer shell center section, the diffuser base section having a raised first mating projection for engagement with a first mating surface of the midsection of the outer shell, the diffuser outer section having a raised second mating projection for engagement with a second mating surface of the midsection of the outer shell, the outer shell midsection and the diffuser forming a volute wall portion of the compressor housing.