Patent ID: 9435337
Filing Date: 2016-09-06
CPC Classification: F04C

Claim Text:
1. A scroll compressor in which a compression mechanism and a motor are accommodated in a hermetic container, the compression mechanism comprises: a fixed scroll having a spiral lap rising from a paneling; a rotary scroll having a spiral lap also rising from a paneling, and meshing with the fixed scroll to form a plurality of compression chambers; a shaft; a main frame for supporting the shaft; and a rotation-regulating mechanism for regulating an attitude of the rotary scroll, and in which an eccentric shaft is integrally formed on one end of the shaft, the eccentric shaft is fitted into an eccentric bearing member formed in the rotary scroll, a main shaft of the shaft is fitted into a main bearing member formed in the main frame, refrigerant compressed by the compression mechanism is discharged from a discharge port of the fixed scroll, wherein when a diameter of the main bearing member is defined as Dm and a length thereof is defined as Lm and a diameter of the eccentric bearing member is defined as De and a length thereof is defined as Le, a ratio (=Lm/Dm) of the length and the diameter of the main bearing member and a ratio (=Le/De) of the length and the diameter of the eccentric bearing member satisfy a relation Le/De≦Lm/Dm≦1, and a clearance between the main bearing member and the main shaft, a clearance between the eccentric bearing member and the eccentric shaft, and a clearance between an auxiliary shaft of the shaft located on a side of the main shaft and an auxiliary bearing member that supports the auxiliary shaft are 10/10,000 to 40/10,000 times of the diameter Dm of the main bearing member, the diameter De of the eccentric bearing member and a diameter of the auxiliary bearing member respectively.