Patent ID: 9546657
Date: 2017-01-17
CPC Classifications: F04C,Y10T

Claim:
1. A method for manufacturing a compressor, the method comprising; providing a cylindrical shell, rotational shaft, a rotor, a stator, a compression device, a lower bearing, a lower frame, and a base: mounting the rotational shaft to the compression device in the cylindrical shell, wherein the rotor and stator are configured to rotate the rotational shaft, and wherein the lower bearing support one side of the rotational shaft; supporting the lower bearing with the tower frame, wherein the lower frame has a main body that contacts an inner circumferential surface of the cylindrical shell and a flange that extends from the main body; coupling the lower bearing to the lower frame, such that a center of an inner circumferential surface of the lower bearing is aligned with a center of the main body of the lower frame; press-fitting the lower frame into a lower end portion of the cylindrical shell until the flange contacts the lower end portion of the cylindrical shell; mounting the lower frame press-fitted in the cylindrical shell onto the base to seal the lower end portion of the cylindrical shell, wherein the base has a mounting surface that contacts a lower surface of the flange and an annular wall that faces an outer circumferential surface of the flange; and welding the outer circumferential surface of the flange, an outer circumferential surface of the cylindrical shell, and an inner circumferential surface of the annular wall together.