STRUCTURE FOR REDUCING FRICTIONLOSS OF HERMETIC COMPRESSOR

摘要

PURPOSE: A structure for reducing frictionloss of a hermetic compressor is provided to smooth vertical reciprocation of a vane, to stably keep the vane even when the vane is moved to a bottom dead center, and to reduce frictionloss due to vertical movement of the vane. CONSTITUTION: A hermetic compressor includes a cylinder assembly having an inner space to allow an inlet and an outlet to be connected with each other; a partition dividing the inner space into a plurality of hermetic spaces to have a pair of the inlet and the outlet of the cylinder assembly, and rotated relatively to the cylinder assembly to move fluid in each of the hermetic spaces; and vanes(6A) slid into the cylinder assembly in axial direction to linearly move relatively to the partition to cut off movement of fluid in each of the hermetic spaces. A plurality of vane slots(12) are formed on the cylinder assembly to allow each of the vanes to be slid in axial direction. Vane supporting protrusions(14) are formed near the vane slots to support the vanes against compressed direction of fluid so that areas of insides and outsides thereof contacting with the vanes are different from each other with respect to a center of the cylinder assembly.