| 摘要 |
A deep well fluid pump which enables the pumping of fluid with much less energy which includes a power column of fluid of sufficient volume, which communicates to the under side of the lifting piston for the column of fluid to be lifted, but i s isolated from said fluid to be lifted, to balance the head force of the column of fluid to be lifted, a pump means to increase the head force on the power column of fluid a sufficient amount to overcome the seal friction and pre-load spring down force of the lifting piston, so that it raises the lifting piston and thus discharges a volume of lifted fluid in a surface reservoir, and when the increased force on the power column is relieved, the pre-load spring forces the lifting piston down to reload.
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