| 摘要 |
PROBLEM TO BE SOLVED: To loosen discharge pulsation from a discharge port by fixing a cover body to a reverse spiral body side of a fixing scroll, discharge a compressed gas fluid compressed in a compression chamber from a discharge port of the fixing scroll to an inside space of the cover body, and leading it to a discharge chamber in an enclosed casing. SOLUTION: At the time of an operation, a gas fluid sucked from an intake pipe 7 is led from intake parts of spiral bodies 22, 32 in each of scrolls 2, 3, and is compressed in each compression chamber. Furthermore, a compressed gas fluid is discharged from a discharge pipe 8 to an outside bypassing a communicating hole 61 of a support plate 6, a discharge chamber 1A, and a space 1B. In this case, a cover body 24 for covering an upper side of the discharge port 23 is attached to the fixing scroll 2, and is connected too the support plate 6. The communicating hole 61 communicated with the discharge port 23 is arranged on the support plate 6. A gas fluid delivered from the discharge port 23 and a relief port 10 is discharged to an inner space 24a of the cover body 24, and thereby, discharge pulsation is loosened in the inner space 24a.
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