Rotary compressor and refrigeration circuit device

Abstract

The displacement volume of a compression mechanism (40) is defined as Vc [cc], the density of a refrigerant at 1.9 Mpa and 75°C as Dg [g / cm3], the number of revolutions of a rotary shaft (30) as N [rps], the volume of a primary space (S1) as V1 [cc], the volume of a secondary space (S2) as V2 [cc], the height of the primary space (S1) as H1 [cm], the height of the secondary space (S2) as H2 [cm], the density of refrigerating machine oil at 15°C as Do [g / cm3], and the solution viscosity of the refrigerating machine oil present at a level of a suction port (71a) or lower as η [mPa·S]. The rotary compressor satisfies relational expressions: N ≥ 100 [rps]; and ((8.19 × 10-8 × Vc × Dg + 0.000327) × Vc3.657 × N3.126) / (V1 × V2 × H11.867 × H21.556 × Do × η) ≤ 1.0.

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