| 摘要 |
<p>PURPOSE:To obtain the highly reliable bearing lubrication equivalent to an oil pump by providing an oil-feeding passage to supply the lubricating oil in a swash plate chamber to a radial bearing on the basis of the negative pressure given in a compression chamber with its opening at suction ports. CONSTITUTION:Sucking holes 26a and 26b are bored on valve plates 2a and 2b to connect between central holes 4a and 4b connected to a shaft-inserting hole 4 and suction ports 20a and 20b. The lubricating oil collected in an oil reservoir 24 is splashed up by the rotation of a swash plate 7 into oil mist. In the oil-feeding passage A, since the passage A is opened at suction ports 20a and 20b on one end, an ejection effect is given by the jet stream of refrigerant caused at suction ports 20a and 20b at the time of a suction stroke, and consequently, a suction force from a swash plate chamber 8 to suction ports 20a and 20b is generated to supply the refrigerant containing lubricating oil in the swash plate chamber 8 powerfully to radial bearings 10a and 10b. This construction permits to ensure the stable feeding of the oil.</p> |
