| 摘要 |
PROBLEM TO BE SOLVED: To easily feed a refrigerating machine oil to a rotary shaft by providing a guide path in a rotary scroll, and guiding the refrigerating machine oil with a pump mechanism pumping up the refrigerating machine oil from an storage tank. SOLUTION: A rotary scroll makes an eccentric motion via the eccentric rotation of the eccentric drive pin of a rotary shaft, a drive pin 151 inserted into the hole of an oil compressing rotor 155 stored in an operation chamber 106a below the end plate of the rotary scroll also makes an eccentric motion, and the outer peripheral wall of the oil compressing rotor 155 is eccentrically rotated while sliding on the peripheral wall of the operation chamber 106a. The refrigerating machine oil stored in an oil storage tank is sucked up into the operation chamber 106a via an oil guide hole 106c and an oil guide pipe, is moved in the space between the outer peripheral wall of the oil compressing rotor 155 and the peripheral wall of the operation chamber 106a, and is sent to an oil discharge hole 106d side. The refrigerating machine oil is sprayed on the shaft end face of the eccentric drive pin through an oil guide path opening section 115b in the rotary scroll, is fed to a drive bush and a rotary bearing, and is fed to a shaft seal section 108 and a drive bush in a guide path in the rotary shaft.
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