液压作用隔膜泵的补油和溢流魏宝利隔膜泵是一种动作缓和易于清洗消毒的泵，其独特的结构非常适合生物大分子活性物质的输送。本文主要介绍该种泵液压腔的补油和溢流形式，其原理如图所示。柱塞５带有一小柱塞，可相对于ｂ腔作轴向运动，为间隙密封形式；套筒６与膜片１连... Hydraulic action diaphragm pump oil and overflow Weibaoli diaphragm pump is a kind of action ease and easy cleaning and disinfection of the pump, its unique structure is very suitable for biological macromolecule active material delivery. This paper describes the kind of pump hydraulic cavity filling and overflow form, the principle shown in Figure. Piston 5 with a small plunger, relative to the b cavity for axial movement, gap seal form; sleeve 6 and the diaphragm 1 ...