Device for filtering and removing air from heating oil with return flow valve

The device (1) has a feed line (5) connecting a tank connection (2) to a feed connection (3). A fuel filter (6) is arranged in the feed line. A return line (8) connects a return connection (4) to the feed line. A return changeover valve (14) e.g. 3-by-2-way valve, connects the return line to the fee...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HEINZ, THOMAS, MAYER, EUGEN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES FEEDING FUEL TO COMBUSTION APPARATUS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The device (1) has a feed line (5) connecting a tank connection (2) to a feed connection (3). A fuel filter (6) is arranged in the feed line. A return line (8) connects a return connection (4) to the feed line. A return changeover valve (14) e.g. 3-by-2-way valve, connects the return line to the feed line.The valve is switchable between valve positions and connects the return line to the feed line in one of the valve positions arranged at an upstream of the fuel filter, and connects the return line to the feed line in the other valve position arranged at downstream of the fuel filter.