| 摘要 |
<p>PURPOSE:To reduce noise due to over compression by specifying the volume ratio a compression chamber at the top dead center of a piston to that at the bottom dead center of the piston. CONSTITUTION:By reciprocating a duplex piston 5 in a pair of front and rear cylinder bores 1a, 2a of a pair of front and rear cylinder blocks 1, 2 due to rotation of a swash plate 3 fixedly secured on a rotating shaft 4, refrigerant gas sucked from suction ports 9a, 13a is compressed and hereafter discharged from discharge ports 9b, 13b. In such swash plate type compressor, the volume ratio a compression chamber P1 at the top dead center of the end face 5a of a piston head to the compression chamber P1 at the bottom dead center of the end face 5a of the piston head is instituted to be 4-8%. Hereby, generation of over compression condition is dissolved and noise is reduced.</p> |
