FLUID DISPENSING APPARATUS

FLUID DISPENSING APPARATUS

Fluid dispensing apparatus (10) for selectively dispensing desired quantities of a fluid under pressure. The apparatus includes a base plate (14) having a dispensing passage (16) extending about a first axis (18); a valve arrangement (20) associated with the dispensing passage (16), and a piezoelect...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANDERSSON, OVE DI, NYBOM, GOERAN, JONASSON, PATRIK, THALIN, LENNART, SJOESTEDT, LENNART, PEGELOW, MATS
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACTUATING-FLOATS
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
BLASTING
COCKS
CORRECTION OF TYPOGRAPHICAL ERRORS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LIGHTING
LINING MACHINES
MECHANICAL ENGINEERING
NOZZLES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
STAMPS
TAPS
THERMAL INSULATION IN GENERAL
TRANSPORTING
TYPEWRITERS
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:Fluid dispensing apparatus (10) for selectively dispensing desired quantities of a fluid under pressure. The apparatus includes a base plate (14) having a dispensing passage (16) extending about a first axis (18); a valve arrangement (20) associated with the dispensing passage (16), and a piezoelectric transducer (22) acting on the valve arrangement (20) to effect displacement of the valve arrangement between a first position in which the dispensing passage (16) is closed and a second position in which the dispensing passage is connected to a source of the fluid under pressure. The valve arrangement (20) includes a slide valve (24), with the slide valve and the piezoelectric transducer (22) being arranged such that during at least initial displacement of the valve arrangement from the second position towards the first position, the slide valve (24) is displaced in a direction transverse to the first axis (18).