Horizontal multi-cylinder rotary compressor

A horizontal multi-cylinder rotary compressor, comprising:

• a compressor mechanism unit for compressing refrigerant and being within a sealed container;
• an electric motor unit for driving the compressor mechanism unit and being within the sealed container;
• a lubricating oil reservoir at a bottom portion of the sealed container for each of said compressor mechanism unit and said electric motor unit, said reservoirs being separate from each other;
• said compressor mechanism unit having a plurality of cylinders and a rotating shaft of the compressor mechanism unit supported generally horizontally by a bearing portion including a main bearing and sub-bearing;
• a first vane chamber formed in a sealed manner with respect to the reservoirs behind a first vane that reciprocates by following a roller which is eccentrically rotated within a first cylinder as said rotating shaft rotates;
• a second vane chamber formed in a sealed manner with respect to the reservoirs behind a second vane which similarly reciprocates within a second cylinder;
• a first communication passage provided in said first vane chamber and communicating lubricating oil directly with the lubricating oil reservoir of the electric motor unit at the bottom portion of the said sealed container;
• said second vane chamber being provided with an oil supply passage for supplying the lubricating oil to said bearing portion of the compressor mechanism unit, a hole for communication lubricating oil directly with the first vane chamber, and a second communication passage communication lubricating oil with the lubricating oil reservoir of the compressor mechanism unit at the bottom portion of the sealed container;
• and
• said first vane chamber being sealed except for said hole and said first communication passage.