| 摘要 |
A hermetic compressor having a Z-plate comprises: a cylinder fixed in a casing for forming a compression chamber; upper and lower bearings (20, 22) hermetically mounted at upper and lower surfaces of the cylinder (19), respectively for forming the compression chamber (14, 16) with the cylinder (19); a rotation shaft (24) connected to a driving unit (12) and rotatably supported at the upper and lower bearings (20, 22); a Z-plate (26) engaged at an outer circumference surface of the rotation shaft (24) for dividing the compression chamber (14, 16) into a first compression chamber (14) and a second compression chamber (16); and friction reducing members (32, 34) arranged at thrust surfaces between the rotation shaft (24) and the upper and lower bearings (20, 22) for reducing a friction therebetween. The compressor reduces the friction between the rotation shaft (24) and the upper and lower bearings (20, 22) thereby increasing a performance and a reliability of the compressor. |
