SYSTEMS AND METHODS TO PRECISELY CONTROL OUTPUT PRESSURE IN BUFFERED SPRAYERS

SYSTEMS AND METHODS TO PRECISELY CONTROL OUTPUT PRESSURE IN BUFFERED SPRAYERS

A liquid dispensing device is disclosed comprising a dispensing head, which in turn comprises an inlet valve, a piston (3) and a piston chamber, and an actuator for controlling the piston (3). The dispensing head further comprises a buffer (6) in fluid communication with the piston chamber, an outle...

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Bibliographische Detailangaben
Hauptverfasser: HURKMANS, Petrus Lambertus Wilhelmus, NERVO, Paulo, MAAS, Wilhelmus Johannes Joseph, HALEVA, Aaron S
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
NOZZLES
PERFORMING OPERATIONS
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
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Beschreibung
Zusammenfassung:A liquid dispensing device is disclosed comprising a dispensing head, which in turn comprises an inlet valve, a piston (3) and a piston chamber, and an actuator for controlling the piston (3). The dispensing head further comprises a buffer (6) in fluid communication with the piston chamber, an outlet valve having a defined minimum opening pressure in fluid communication with one of (i) the buffer and (ii) the buffer and the piston chamber, and a nozzle (9) with a defined throughput in fluid communication with the outlet valve. The buffer is a gas buffer (6) comprising a gas-filled buffer bag made from a flexible material and arranged in a buffer housing.