SYSTEMS, DEVICES AND METHODS FOR FLUID PUMPING, HEAT EXCHANGE, THERMAL SENSING, AND CONDUCTIVITY SENSING

摘要

PROBLEM TO BE SOLVED: To provide pumps that impart low shear force and turbulence to a fluid being pumped.SOLUTION: A reciprocating positive-displacement pump comprises: a hemispherical rigid chamber wall; a flexible membrane attached to the rigid chamber wall so that the flexible membrane and the rigid chamber wall define a pumping chamber; an inlet for directing a flow through the rigid chamber wall into the pumping chamber in a direction that is substantially tangential to the rigid chamber wall; and an outlet for directing a flow through the rigid chamber wall out of the pumping chamber in a direction that is substantially tangential to the rigid chamber wall.