| 摘要 |
The present invention relates to a piston-type compressor, including a housing; a driving shaft which is supported by the housing; a funneling hole which is formed inside the driving shaft; a valve instrument; and a cylindrical body. The cylindrical body is inserted into the funneling holes to separate a residual gas detour passage from the funneling holes, and the inside of the cylindrical body is open to the funneling holes. The valve instrument includes a ring-shaped space which is divided into the outer portion of the cylindrical body inside the funneling hole; and multiple connecting holes which provide a funnel between the ring-shaped space and the funneling passage. The residual gas detour passage is formed with the ring-shaped space and the connecting holes. |
