High pressure fuel pump for the high pressure burner, in a vehicle heating system, has a rupture disk in the backflow drilling which ruptures at a defined pressure to protect the pump and seals on a malfunction

Closure for backflow drilling (22) is a rupture disk (28) which matches its cross section, at a high pressure fuel pump for a high pressure burner in a vehicle heating system. Rupture disk collapses at a defined pressure of 1-20 bar, and it has a higher resistance to pressure on one side than on the...

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Bibliographische Detailangaben
Hauptverfasser:	DEDIO, HORST, MOSIG, ERNST
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES FEEDING FUEL TO COMBUSTION APPARATUS HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	Closure for backflow drilling (22) is a rupture disk (28) which matches its cross section, at a high pressure fuel pump for a high pressure burner in a vehicle heating system. Rupture disk collapses at a defined pressure of 1-20 bar, and it has a higher resistance to pressure on one side than on the other side of the disk. Rupture disk, with a diameter of 1-3 mm, is held in a separate disk mounting (30) for insertion into the backflow drilling. Vorgesehen ist eine Vorrichtung zum Verschluß der Rücklaufbohrung einer Hochdruckpumpe zur Versorgung von Hochdruckbrennern in Kraftfahrzeugheizgeräten, die nach Maßgabe der Erfindung dadurch gekennzeichnet ist, daß die Vorrichtung eine den Querschnitt der Rücklaufbohrung (22) versperrende Berstscheibe (28) ist, die derart ausgebildet ist, daß sie bei einem definierten Druck kollabiert.