Patent ID: 6302660
Filing Date: 2001-10-16
Classification: F04B

Abstract:
A tube pump, comprising a pump head and a pump driver for driving said pump head,wherein said pump head including:a cylinder having a cylindrical space formed therein;a cylindrical flexible tube arranged coaxially within said cylindrical space of said cylinder, an outer space between said cylindrical flexible tube and said cylinder defining an actuator fluid space to be filled with an actuator fluid, an inner space within said cylindrical flexible tube defining a pump chamber for conveying an object fluid;an intake valve attached to one end portion of said cylindrical flexible tube; anda discharge valve attached to the other end portion of said cylindrical flexible tube,and wherein said pump driver is an electromagnetic driver including:a plunger arranged reciprocally movable in the axial direction;and electromagnet for periodically attracting said plunger to drive said plunger in said axial direction reciprocally; anda diaphragm mounted on the top portion of said plunger and facing said actuator fluid space for absorbing and discharging said actuator fluid into and from said actuator fluid space in response to said plunger reciprocally moving.