EXPANDER-INTEGRATED COMPRESSOR AND REFRIGERATION CYCLE DEVICE WITH THE SAME

摘要

An expander-integrated compressor (30) has a sealed container (1), in the lower part of which oil (40) is contained, an electric motor (2) placed in the sealed container (1), a compression mechanism (3) placed under the electric motor (2) in the sealed container (1) and compressing refrigerant and discharging it to the inside of the sealed container (1), an expansion mechanism (4) placed under the compression mechanism (3) in the sealed container (1), and a connection mechanism (50) for interconnecting a compression mechanism-side shaft (5) and an expender mechanism-side shaft (6). In the compression mechanism-side shaft (5) is formed an oilsupply route (53) for supplying oil to the compression mechanism (3). An oil suction hole (53A) is provided in the compression mechanism-side shaft (5) at its portion above the expansion mechanism (4).