Apparatus and method for alignment of the bearing of the crankshaft of a scroll compressor and a scroll compressor and device for carrying out this method

• Main Authors: Weber, Jean-Francois, Pfister, Jean-Michel, Ginies, Pierre
• Format: Patent
• Language: English
• Published: 09.09.2003

This application is entitled to the benefit of, and incorporates by reference essential subject matter disclosed in PCT Application No. WO 00/63560 filed on Apr. 19, 2000 and French Patent Application No. 99/05146 filed on Apr. 20, 1999. This method comprises carrying out the mounting of the body of the compressor and of the compression elements in the casing of the compressor, with the body or fixed scroll bearing on one end of the shroud of the casing, and then welding a cap to the shroud, the crankshaft being engaged in a bearing belonging to the movable part of the compression stage and in a bearing belonging to the body, engaging on the free end of the crankshaft a bearing mounted in a support, itself mounted with radial play in the shroud, with the possibility of being fastened to the latter, displacing the free end of the crankshaft in a plurality of directions perpendicular to its axis, in order to take into account the plays of the bearing mounted in the body, then determining the axis of the bearing on the basis of the various displacements, positioning the bearing and/or its support as a function of this axis, and fastening the support to the casing of the compressor or the bearing on its support.