ROTARY OPERATION ROD TYPE PUMP

摘要

PROBLEM TO BE SOLVED: To realize downsizing of a device in a rotary operation rod type pump. SOLUTION: The rotary operation rod type pump is provided with a cylindrical fixing member; a cylindrical rotation member arranged in an internal space of the fixing member and having a uniform speed cam profile at the inside; and at least one pump body fixedly arranged so as to be positioned at the inside of the rotation member and having a projecting distal end of the operation rod slide-contacting or rolling along the uniform speed cam profile. When the rotation member rotates by driving force of a driving source, the operation rod is reciprocated by driving rotation of the rotation member. Synthetic waveform W of a fluid pressed out from the pump body through check valves at suction and delivery side becomes approximately constant. COPYRIGHT: (C)2006,JPO&NCIPI