Sealed compressor housing

A compressor housing, comprising:

• an upper cover;
• a lower shell;
• the upper cover and the lower shell each having a cylindrical shape with an elliptical horizontal cross section, and being engageable with each other by snap-fitting at the elliptical horizontal cross sections;
• the elliptical horizontal cross sections of the upper cover and the lower shell each having a major axial centerline and a minor axial centerline, and the respective major axial centerlines and the respective minor axial centerlines being aligned to coincide with each other when the upper cover and the lower shell are engaged;
• a cylinder bore for connecting a compressor cylinder block, the cylinder bore having a centerline being aligned to coincide with the major axial centerlines of the upper cover and the lower shell;
• a terminal pin located on the lower shell and symmetrically disposed with respect to a terminal pin bore centerline,
• wherein a top surface of the upper cover is an asymmetric spherical contraction, a portion of the upper cover on a side of the terminal pin and a front side of the upper cover are higher than a rear side of the upper cover,
• wherein a bottom surface of the lower shell is a smooth ellipsoidal contraction, and
• wherein the terminal pin bore centerline forms an angle with the major axial centerlines.