| 摘要 |
<p>PURPOSE:To maintain proper oil temperature at all times and obtain good lubrication performance by liquefying a part of refrigerant gas in a delivery chamber, then introducing the liquefied gas to a swash plate chamber or an oil chamber in air liquid mixture state, and finally gasifying the liquid refrigerant therein for a cooling purpose. CONSTITUTION:When a pump 15 is operated with the turn of a drive shaft 9, oil sucked from an oil chamber 16 to a pump chamber 10 is fed to a thrust bearing 11 via an oil feed passage 20, and then splashed into a swash plate chamber 7. On the other hand, refrigerant gas is fed from a suction chamber 21 to a compression chamber 22 on the operation of a piston 13, and then flows from a delivery chamber 23 to a cooling chamber 24 via a passage via an inlet 25. Thereafter, the gas is cooled and liquefied. Furthermore, the liquid refrigerant is partly gasified and cooled at a throttle part 26a at the outlet 26 of the cooling chamber 24, and then flows into the swash plate chamber 7 via a communication passage 27. As a result, the swash plate chamber 7 is cooled with the liquefied refrigerant and further cooled as the refrigerant is gasified.</p> |
