公开(公告)号：US4902206A

公开(公告)日：1990-02-20

申请号：US251462

申请日：1988-09-30

申请人： Takao Nakazawa ,  Jisaburo Naito ,  Hiroyuki Horiki ,  Tutomu Kawashima

发明人： Takao Nakazawa ,  Jisaburo Naito ,  Hiroyuki Horiki ,  Tutomu Kawashima

IPC分类号： F04B43/113

CPC分类号： F04B43/1136

摘要： A bellows pump which is disclosed herein has two bellows made of a plastic material and provided with liquid inlet and outlet ports for transferring a liquid by expanding and contracting the bellows. The bellows pump comprises cylinder cases in each of which the bellows is vertically expandably and contractably contained and mounted at its access port side to a ceiling of said cylinder cases, gas pumping means for alternately feeding a compressed gas from a lower end thereof into the cylinder cases, a pair of rods passed through bottoms of the cylinder cases and fixed to the lower ends of the bellows, and adapted to be moved in response to the expansion and contraction of the bellows, and actuating means adapted to be operated in response to the up and down movement of the rods.

摘要翻译： 本文公开的波纹管泵具有由塑料材料制成的两个波纹管，并且设有用于通过膨胀和收缩波纹管传送液体的液体入口和出口。 波纹管泵包括气缸壳体，其中波纹管在其入口侧垂直地可膨胀和收缩地容纳并安装到所述气缸壳体的天花板上，气体泵送装置用于将压缩气体从其下端交替地供给到气缸 情况下，一对杆穿过气缸壳体的底部并固定到波纹管的下端，并且适于响应于波纹管的膨胀和收缩而移动，以及适于响应于 杆的上下运动。