| 摘要 |
PURPOSE:To eliminate the necessity of a special discharge valve by forming a cut part at the top edge part of a vane and allowing the compressed gas to be discharged from a discharge port formed onto a bearing when the vane is pushed-down and by permitting the opening and closing of the discharge port by the reciprocating movement of the vane in the vertical direction. CONSTITUTION:A discharge opening 13 is formed onto a bearing 6 on the opposide side to a motor corresponding to a vane 10, and is opened and closed by the reciprocating movement of the vane 10. At the top edge part of the vane 10, a cut part 15 is formed to open the discharge port 13 when the vane 10 is pushed-down in compression cycle. Therefore, when the vane 10 is pushed-down in compression cycle, the discharge port 13 is positioned at the position corresponding to the cut part 15 of the vane 10, and the discharge port 13 is opened, and the compressed high-pressure gas is discharged outside a compression chamber. Therefore, the necessity of a discharge valve on the bearing side in the conventional is eliminated, and the generation of noise in opening and closing operation can be prevented. |
