RECIPROCATION PUMP
To provide a reciprocation pump capable of compatibly securing a water absorption flow path area and securing an appropriate bolt diameter.SOLUTION: A piston metal fitting 16 having a piston packing 17 for slide-contacting with a cylinder 2 provided on its outer periphery side is fixed to a piston b...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a reciprocation pump capable of compatibly securing a water absorption flow path area and securing an appropriate bolt diameter.SOLUTION: A piston metal fitting 16 having a piston packing 17 for slide-contacting with a cylinder 2 provided on its outer periphery side is fixed to a piston body 4 on its rear side with a fixing bolt 21 provided on its rear end face, while a water absorption flow path 28 is passed thought the interior of the piston metal fitting 16 at a front side further than the fixing bolt 21 for absorbing a use liquid. In this construction, the fixing bolt 21 for the piston metal filling 16 and the water absorption flow path 28 are not arranged in parallel to each other in a radial direction.SELECTED DRAWING: Figure 2
【課題】吸水流路面積の確保と適切なボルト径の確保を両立することができる往復動ポンプを提供すること。【解決手段】その外周側に、シリンダ２に摺接するピストンパッキン１７を備えたピストン金具１６を、その後端面に備えられた固定ボルト２１により、その後側のピストン本体４に固定する一方で、ピストン金具１６の固定ボルト２１より前側の内部に、使用液を吸水するための吸水流路２８を通し、ピストン金具１６の固定ボルト２１と吸水流路２８とが径方向に並列しない構成とする。【選択図】図２ |
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