Pump with compressible chamber - has multiple flexible walls to increase output according to number

摘要

The metering pump has a compression chamber made of flexible sections (3) which can be replaced. The chamber can be made of multiple flexible sections to increase output in proportion to the number. The flexible sections can be of circular section, curved or polygonal. Movement of the piston (2) is by fluid action, mechanical or electro-mechanical. The inlet and outlet valves (5, 6) are conventional.