Patent ID: 6227824
Filing Date: 2001-05-08
Classification: F04B

Abstract:
A fluid micropump, comprising:a micropump body;a displacer which is adapted to be positioned at a first and at a second end position by means of a drive, said displacer and said pump body being implemented such that a pump chamber is defined therebetween, and said pump chamber being adapted to be fluid-connected to an inlet via a first opening and to an outlet via a second opening, which openings are not provided with check valves; andan elastic buffer bordering on said pump chamber;said displacer closing said first opening when it occupies said first end position and leaving said first opening free when it occupies said second end position; andsaid buffer being sufficiently elastic so as to be deformed by an abrupt movement of said displacer to form a buffer volume, and sufficiently resilient to provide pumping action subsequent to its deformation.