METHOD FOR OPERATING A DOUBLE-ACTING PISTON PUMP, DOUBLE-ACTING PISTON PUMP AND APPLICATION SYSTEM FOR APPLYING A FLUID MEDIUM TO A SUBSTRATE

摘要

A method for operating a double-acting piston pump (1) of an application system for applying a flowable medium, in particular a heated adhesive, to a substrate (3), the piston pump having a piston (25) movable between a first reversal point (24) and a second reversal point (25). 4), the direction of movement of the piston being reversed when the respective reversal point (24, 25) is reached, the application system having a dispensing device (5) for intermittent dispensing of the flowable medium conveyed to the dispensing device (5) by means of the piston pump (1) wherein the flowable medium is dispensed by means of the dispensing device during dispensing periods and dispensing of the flowable medium by means of the dispensing device is interrupted during periods of interruption, the direction of movement of the piston (4) being reversed during at least one period of interruption of the periods of interruption, w whether during the reversal of the direction of movement during the at least one interruption period the piston (4) is in an intermediate position between the first reversal point (24) and the second reversal point (25). A double-acting piston pump and an application system. are also disclosed.