| 摘要 |
<p>PURPOSE:To prevent deforming of a bore, worsening compression performance, etc., due to press fitting by press-fitting a radial bearing for supporting a drive shaft into a boss part of a cylinder block protruded into a crank chamber in order to avoid coexistence with the bore in a surface orthogonal to a drive shaft center. CONSTITUTION:In a compressor, by converting rotary motion of a drive shaft 8 into longitudinal motion of a swivel plate 10 through a rotary swash plate 9 and further by reciprocating a single head piston 13 in a bore 12, refrigerant gas sucked into the bore 12 from a suction chamber 5 is compressed and delivered to a delivery chamber 6. Here in the axial center part of a cylinder block 1, a boss part 1a protruded into a crank chamber 7 is formed, and a radial bearing 20 is press-fitted to the center shaft hole of this boss part. That is, the radial bearing 20 is displaced in the axial direction to an extent not coexisting with the bore l2 in a surface orthogonal to the drive shaft 8. A rear end of the drive shaft 8, supported to the radial bearing 20, is supported by a thrust lace 22 and a belleville spring 23 stored in the center shaft hole.</p> |
