PURPOSE: To prevent lubricating oil from flowing out to a direction of an electric motor for driving a crankshaft by providing a seal member in a space between the crankshaft and a bush, so that lubricating oil of leaking into the space between the crankshaft and the bush is sealed by this seal member.
CONSTITUTION: Lubricating oil of passing through a supply oil hole 3c of a crankshaft 3 partly passes through a space between the crankshaft 3 and the internal peripheral surface of a bush 4, to tend to flow out from the end face of a main bearing part 5a of a main frame 5. By this practical example, since a seal ring 15 fitted to a seal ring groove 14 is provided in the space of the internal peripheral surface of the bush 4 which is a passage for lubricating oil, its flow path is restricted by this seal ring 15, and an outflow amount from the end face of the main bearing part 5a is remarkably restricted. By this constitution, a suction oil amount into a compression chamber is reduced, to display an effect of reducing an amount of oil contained in delivery gas. In this way, the lubricating oil can be prevented from flowing out to the direction of an electric motor for driving the crankshaft 3.
| JP2014234784 | SCROLL COMPRESSOR |
| JP2007009789 | ACCUMULATOR-INTEGRATED COMPRESSOR AND VAPOR-COMPRESSION REFRIGERATING SYSTEM |
YANO KENJI
KIMURA TADASHI
