Pump for use in e.g. ocean current for electricity production, has hemispherical part that is placed in front of internal structure and external envelope for increasing speed of fluid i.e. water, and allowing relatively laminar flow in pipe.
专 利 号 :
FR2993324-A1
发 明 人 :
BIGNON P; THIREL D
专利权人 :
BIGNON P (BIGN-Individual);THIREL D (THIR-Individual)