| 摘要 |
<p>PURPOSE:To simplify the structure while to improve the controlling performance, in a system comprising a tandem intensifier and a pair of high pressure pumps for pressing feeding the high pressure primary liquid alternatively into respective primary liquid chamber, by employing a multi-plunger pump for the high pressure pump. CONSTITUTION:The high pressure producing apparatus is comprised of a tandem intensifier (pressure converter) 7 and a pair of high pressure pumps 4A, 4B for pressure feeding the high pressure primary liquid alternatively to respective primary liquid pressure chamber 8, 8'. Here a multi-plunger pump having the plungers 50-53 to be reciprocated by a cam shaft 31 rotated through a motor is employed for the high pressure pump 4A (4B) to couple the pressure chamber 40a to be defined with a barrel 40 and a plunger 50 directly with the flow path 10 while the pressure chambers 41a-43a to be defined with the barrels 41-43 and the plungers 51-53 with the flow path 10 through one-way valves 61-63. Respective plunger 50-53 is arranged to start lifting sequentially while lagging by predetermined angle.</p> |
