Rotary compressor having two cylinders

A rotary compressor having two cylinders, the compressor comprising:

• a crankshaft having a first eccentric portion and a second eccentric portion connected to each other by a connecting portion;
• and
• two compressive elements that compress working fluid in cylinders as a first piston inserted over the first eccentric portion eccentrically rotates in accordance with rotation of the crankshaft,
• wherein the first piston inserted over the first eccentric portion undergoes assembly by being inserted over the first eccentric portion through the second eccentric portion,
• a first releasing portion is provided at an outer diameter portion of the first eccentric portion, a second releasing portion is provided at an outer diameter portion of the second eccentric portion, the first releasing portion being positioned on a side of the outer diameter portion of the first eccentric portion close to the connecting portion, the second releasing portion being positioned on a side of the outer diameter portion of the second eccentric portion close to the connecting portion, the first and the second releasing portions being structured by step portions, each of the first and the second releasing portions being concentric to the first eccentric portion and the second eccentric portion respectively, and the first and the second releasing portions having a reduced outer diameter relative to the first eccentric portion and the second eccentric portion respectively,
• Hc-c<Hp−Hpc<Hc-c+Hcd<Hp is established where Hc-c is a height of the connecting portion, Hcd is a height of the first releasing portion or the second releasing portion, Hp is a height of the first piston, and Hpc is a height of one of bevels respectively provided at both surfaces of the first piston, and
• an outermost diameter of a projection cross section obtained by overlaying a cross section of the first eccentric portion excluding the first releasing portion and a cross section of the second eccentric portion excluding the second releasing portion on each other is set to be greater than an inner diameter of the first piston.