Solenoid device and injection valve having the same

Valves and valve actuation – Electrically actuated valve – Including solenoid

Reexamination Certificate

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Details

C251S284000, C335S261000, C335S279000, C335S281000, C335S298000

Reexamination Certificate

active

07441746

ABSTRACT:
An injection valve includes a housing that movably accommodates a needle. A movable core is axially movable together with the needle in the housing. A stationary core is fixed in the housing for forming a magnetic circuit together with the movable core. At least one of the movable core and the stationary core has an end that has an annular first protrusion protruding toward an end of an other of the movable core and the stationary core. At least one of the movable core and the stationary core has an end that has an annular second protrusion protruding toward an end of an other of the movable core and the stationary core. The first protrusion is substantially coaxial with respect to the second protrusion.

REFERENCES:
patent: 2407963 (1946-09-01), Persons
patent: 3082359 (1963-03-01), Mangiafico et al.
patent: 3168242 (1965-02-01), Diener
patent: 3348178 (1967-10-01), Erickson et al.
patent: 4569504 (1986-02-01), Doyle
patent: 5544857 (1996-08-01), Torrence
patent: 5732888 (1998-03-01), Maier et al.
patent: 5775670 (1998-07-01), Osterbrink
patent: 6467495 (2002-10-01), Shost
patent: 6853276 (2005-02-01), Smith
patent: 2003/0107016 (2003-06-01), Burrola et al.
patent: 2004/0178378 (2004-09-01), Collins et al.
patent: 1 754 882 (2007-02-01), None
patent: 2002-310029 (2002-10-01), None
patent: 2004-293523 (2004-10-01), None
patent: 2005-069410 (2005-03-01), None
German Office Action dated Mar. 27, 2008 issued in corresponding German Application No. 10 2007 000 062.8 with English translation.

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