作者: Okami Hirohisa , Asai Ryuji
DOI:
关键词: Geometry 、 Physics 、 Line (geometry)
摘要: A valve device opens/closes an opening that is located at end portion of a flow path and whose shape point symmetrical or substantially planar figure. The includes lid closing the arm rotating about axis to open/close opening. straight line passing through center orthogonal taken as line. intersecting without When opening, rotates toward line, when opposite side