| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent temperature of refrigerant compressed in a compression chamber from getting high in a double-headed piston type compressor. <P>SOLUTION: A first rotary valve 35 and a second rotary valve 36 are provided on a rotary shaft 21 with corresponding to cylinder blocks 11, 12. A shaft inside passage 31 is formed in the rotary shaft 21 along a rotary axis line 210 of the rotary shaft 21. An inlet 311 of the shaft inside passage 31 opens to a suction chamber 142 in a rear housing 14. A first communication passage 32 is formed in the cylinder block 11 to communicate to a first cylinder bore 27. A second communication passage 33 is formed in the cylinder block 12 to communicate to a second cylinder bore 28. Outlets 312, 313 of the shaft inside passage 31 intermittently communicate to communication passages 32, 33 with accompanying rotation of the rotary shaft 21. The first communication passage 32 and the second communication passage 33 have round section shapes, and diameter of the first communication passage 32 is larger than that of the second communication passage 33. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
