| 摘要 |
<p>PURPOSE:To improve reliability on installing a valve and provide a reciprocating pump with high compression efficiency. CONSTITUTION:A bulkhead 20 to blockade the upper face of a cylinder 3 is constructed by three layers consisting of an upper valve plate 21, a valve plate 23 and an under valve plate 22. There are provided, an intake valve 27 and a discharge valve 28 by cutting off by slits 26, 29 in a state in which a part remains in the valve plate 23, an intake hole 24, an opening 31 and a valve stopper 32 in the upper valve plate 21, and a discharge hole 25 and an opening 30 in the under valve plate 22, respectively.</p> |
