Patent ID: 8303278

Claim:
A scroll compressor, comprising: a housing; a motor-compressor unit disposed within said housing, comprising; a motor including a stator and a rotor; a crankshaft fitted to said rotor; a crankcase rotatably supporting said crankshaft; a non-orbiting scroll member having a first involute wrap, said non-orbiting scroll member fixedly mounted with respect to said crankcase; and an orbiting scroll member having a second involute wrap, said crankshaft drivingly coupled to said orbiting scroll member to drive said orbiting scroll in an orbiting path with said first and second involute wraps cooperating to define a plurality of variable volume working pockets progressively decreasing in volume from an inlet to an outlet; an injection inlet fitting mounted to said housing and including a first passage; a second passage formed within said crankcase and in fluid communication with said first passage; and a third passage formed within said non-orbiting scroll member, said third passage in fluid communication with said second passage and with at least one of said variable volume working pockets; wherein said injection inlet fitting includes a substantially planar surface, and is mounted to said housing via an adapter fitting, said adapter fitting comprising: a first surface contacting an outer surface of said housing; and a second, substantially planar surface, said substantially planar surface of said injection inlet fitting contacting said second, substantially planar surface of said adapter fitting.