| 摘要 |
<p>A fixing bolt 33 is inserted into a through hole 23b of an end-face member 23 and screwed with a screw hole 32a of a valve holding member 32, by which a discharge valve 31 is sandwiched by the end-face member 23 and the valve holding member 32. Thus, since a thickness of the end-face member 23 can be provided thinner, a capacity of a discharge hole 23a of the end-face member 23 is made smaller so that degradation of operating efficiency as well as increase of operating noise are prevented.</p> |
