发明名称 PUMP WITH PARTIALLY HOLLOW PISTON
摘要 <p>PURPOSE: To improve an a 'in line' fluid end of a pump, reduce the mass and weight thereof and enhance displacement efficiency. CONSTITUTION: A pump has a piston 16 of which an end 17 is hollowed out and forms a chamber 19 having an opening 18 and an inlet valve 15. The alternative displacement of the piston draws and pushes the fluid back through the chamber 19. The system is totally 'in line' and is suitable even for very abrasive fluids such as cement slurry.</p>
申请公布号 JPH06167277(A) 申请公布日期 1994.06.14
申请号 JP19930178299 申请日期 1993.07.19
申请人 PONPUTETSUKU NV 发明人 POORU BIYUIJIINU
分类号 F04B15/02;F04B19/22;F04B39/10;F04B53/10;F04B53/12;(IPC1-7):F04B39/10;F04B21/02;F04B21/04 主分类号 F04B15/02
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