| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compressor including a compressing mechanism (7) to compress fluid by a rotating motion, a rotational driving shaft (11) to drive the compressing mechanism (7), a bearing (3) penetrated by the rotational driving shaft (11), and an oil supply passage (29) formed in the rotational driving shaft (11) so as to supply lubricating oil to the gap between the rotational driving shaft (11) and the bearing (3), and in which the lubricating oil supplied to the bearing (3) is prevented from leaking at the bottom of the bearing (3) and flowing to outside the casing (5). <P>SOLUTION: The portion of the driving shaft (11) supported by the bearing (3) is formed as a major diametric shaft (11f) while the part connected with the bottom of the major diametric shaft (11f) coaxial therewith is shaped as a minor diametric shaft (11g), and a housing (17) is furnished with an oil receiving surface (26) which faces, via a certain gap, an annular stepped surface (12) formed at the boundary of the two shafts (11f) and (11g) in between. <P>COPYRIGHT: (C)2013,JPO&INPIT |
