| 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 faced to a suction valve. CONSTITUTION:An oil-feeding passage A is constructed of passages conducted from a swash plate chamber 8 to radial bearings 10a and 10b via oil-feeding holes 25a and 25b and gaps between a drive shaft 5 and cylinder blocks 1a and 1b, and further from central holes 4a and 4b to compression chambers 19a and 19b via sucking holes 26a and 26b. Since compression chambers 19a and 19b are changed in their capacities by the reciprocation of a piston 11, a suction valve 23 is opened to work a suction force at the time of a suction stroke, and the refrigerant containing lubricating oil is sucked from the swash plate chamber 8 via the passage A for supplying the lubricating oil to radial bearings 10a and 10b.</p> |
