A two-stage air valve actuator for a double-diaphragm pump

A device is provided for controlling the air supply to and exhaust from an air driven pump having two diaphragm chambers (44, 46), each with a liquid pumping section and an air section separated by a diaphragm (40, 42). The device comprises a chamber (52) containing a pilot valve (60) for actuation...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	STEVEN PAUL PLAGER, RICHARD DEAN ZARNEKE, HAROLD JOHNSON, DANIEL S KVINGE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A device is provided for controlling the air supply to and exhaust from an air driven pump having two diaphragm chambers (44, 46), each with a liquid pumping section and an air section separated by a diaphragm (40, 42). The device comprises a chamber (52) containing a pilot valve (60) for actuation in accordance with predetermined positions of the diaphragm (40, 42) and an actuator valve for actuation in accordance with the actuation of the pilot valve (60) to direct pressurised air into a corresponding air section of one of the diaphragm chambers (44, 46). A removable cover (28) for the chamber (52) allows access to the valves.