HIGH-PRESSURE SEAL STRUCTURE, PROCESSING METHOD FOR HIGH-PRESSURE SEAL SURFACE, AND FUEL INJECTION VALVE

A high-pressure seal structure, a processing method for a high-pressure seal surface, and a fuel injection valve. A high-pressure seal part (26) is formed at a connection part between first and second fuel passages (13) and (14) by pressing the first seal surface (24) of an injector housing (2) to w...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KUBOTA OSAMU, FURUKAWA HIDEO, YUI TAKAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A high-pressure seal structure, a processing method for a high-pressure seal surface, and a fuel injection valve. A high-pressure seal part (26) is formed at a connection part between first and second fuel passages (13) and (14) by pressing the first seal surface (24) of an injector housing (2) to which a first fuel passage (13) is opened against the second seal surface (25) of a nozzle body (3) to which a second fuel passage (14) is opened. Seal grooves (24A) and (25A) formed concentrically to each other are formed in at least one of the first seal surface (24) and the second seal surface (25) by finish machining and, accordingly, the leakage of a high-pressure fuel can be effectively suppressed. The first seal surface (24) and the second seal surface (25) may be formed in a concave shape. ® KIPO & WIPO 2008