| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a scroll-type fluid machine in which the deformation of a rotary scroll can be reduced when a bearing is fixed to the inside of a boss. <P>SOLUTION: In a scroll compressor, a fluid-tight chamber is formed by making a fixed scroll and a rotary scroll engaged with each other each having a spiral wall on a side of each end plate. The scroll compressor includes: a metallic boss 15C protruding from the other side of the end plate of the rotary scroll; a metallic rotary bearing 12 inserted in the boss 15C; a crankshaft configured to be rotated about an axis line and including a bush which is inserted into the rotary bearing 12 and rotatably supported by the rotary bearing 12; and an insert member 31 disposed between the boss 15C and the rotary bearing 12, the insert member having a thermal expansion coefficient larger than those of the boss 15C and the rotary bearing 12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
