To feed oil into a low pressure region even if an oil level in a compressor shell is fluctuated by arranging, on a driving shaft end part, a passage for feeding oil from an oil reservoir of a delivery chamber into the low pressure region, and forming a penetrating hole on a driving shaft so as to communicate with an oiling pipe opened to the oil reservoir arranged in the vicinity of the oiling passage and open to a slewing bearing part.
In a horizontal scroll compressor in which an electric motor 104 is built, a passage for feeding oil from an oil reservoir 105 into a low pressure region 123 is composed of two systems of a first oiling passage bypassed from an oiling pipe 126 to a penetrating hole 124 and a communicating hole 127 in order, and a second oiling passage bypassing a communicating hole 128. Lubricating oil is distributed and supplied to a slewing bearing 11, a main bearing 115, and an auxiliary bearing 116 by the first oiling passage. In the oiling passage, since its oiling port is formed in an oil reservoir arranged in the vicinity of a compression chamber 103 and an oil reservoir arranged in the vicinity of a shell end part opposite to the compression chamber 103, it can be ensured to supply oil into the low pressure region 123, and an oil shortage condition is prevented, even if oil in the compressor shell 101 is concentrated to one side of a shell end part by the slant of a car body at the time of traveling.
AKAZAWA TERUYUKI
NISHIBATAKE HIDEO
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