| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple cylinder rotary compressor and a refrigeration cycle device, which reduces load and frictional force applied to a rotating shaft by minimizing the diameter of each eccentric portion, miniaturizes compression mechanism sections, and improves compression performance and reliability by shortening a distance between the eccentric portions. SOLUTION: This multiple cylinder rotary compressor A is provided with a plurality of pairs of compression mechanism sections 2A, 2B which have the rotating shaft 4 provided with a main shaft part 4A, a sub shaft part 4B and a plurality of eccentric portions 4c, 4d engaged with rollers 13a, 13b, and a plurality of cylinders 8A, 8B provided with cylinder chambers 14a, 14b in which the rollers are eccentrically moved while being in contact with peripheral walls. The compressor is set to satisfy: Rc<Rm+e and Rc>Rs+e where Rm represents the radius of the main shaft part, Rs represents the radius of the sub shaft part, Rc represents the radius of each eccentric portion, and e represents the eccentric quantity of each eccentric portion, and also set to satisfy: H>L and ha<L where, when the roller engaged with the eccentric portion on the side of the main shaft part is axially divided, ha represents height of the divided roller, H represents thickness of the cylinder, and L represents a distance between the end surfaces of the adjacent eccentric portions. COPYRIGHT: (C)2008,JPO&INPIT
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