| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compressor efficiently lubricating and cooling a radial bearing and a seal member. <P>SOLUTION: A rotary member (lug plate 21) rotating as one unit as a drive shaft 10 is provided in a crank chamber 5. A housing 4 is provided with an opposing surface 4e opposing to the rotary member 21 on a radial outside of a through hole 4c. A blade 43 is provided on an opposing surface 21a to the housing 4 of the rotary member 21. Consequently, fluid (refrigerant gas and lubricating oil) between the opposing surfaces 4e, 21a of the housing 4 and the rotary member 21 is pumped out to an outer circumference side (crank chamber 5) by the blade 43 when the rotary member 21 rotates together with a drive shaft 10. Fluid in the crank chamber 5 moves in a route of the crank chamber 5→an oil supply passage 41→an isolated space R2→a radial bearing 17→a gap between the opposing surfaces of the housing 4 and the rotary member 21→the crank chamber 5 by pumping effect of the blade 43. As a result, lubricating oil can be efficiently supplied to the radial bearing 17 and a lip seal 19. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
