| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent oil from flowing out of a crank chamber through an air bleed passage. <P>SOLUTION: In the swash plate type compressor, a plurality of pistons 9 reciprocate in each cylinder bore 8 by oscillation of a swash plate 15, a charge air passage 26 providing communication between the crank chamber 10 and a delivery chamber 21 is provided, the air bleed passage 25 providing communication between the crank chamber 10 and a suction chamber 20 is provided, tilt angle of the swash plate 15 is varied by adjusting refrigerant passing through quantity of the charge air passage 26 to adjust crank chamber pressure which is back pressure of each piston 9, and reciprocation stroke of each piston 9 is varied by variation of tilt angle of the swash plate 15. The air bleed passage 25 is provided in a drive shaft 4 and is constructed with using an in-shaft refrigerant passage 34 opening to a bearing housing chamber 31 at one end thereof as a part of route. The charge air passage 26 opens to the bearing housing chamber 31 and communicates to the crank chamber 10 via the bearing housing chamber 31. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
