Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate
2007-06-05
2007-06-05
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
C251S129010, C251S129150
Reexamination Certificate
active
10997319
ABSTRACT:
An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is reciprocable along the longitudinal central axis of the valve stem to alternatingly move the valve head between a first position and a second position. A first coil is positioned on a first laminated core having a gap and a thickness. A second coil is positioned on a second laminated core having a gap and a thickness. The gaps of the first and second cores are aligned. An armature on the valve stem passes through the gaps of the first and second laminated cores, such that when the armature is centered in either of the gaps at least a portion of the armature extends slightly passed the thickness of the other laminated core.
REFERENCES:
patent: 3938483 (1976-02-01), Firey
patent: 4312494 (1982-01-01), Aoyama
patent: 4320371 (1982-03-01), Coyle et al.
patent: 4455543 (1984-06-01), Pischinger et al.
patent: 4515343 (1985-05-01), Pischinger et al.
patent: 4686501 (1987-08-01), Palmier et al.
patent: 4749167 (1988-06-01), Gottschall
patent: 5124598 (1992-06-01), Kawamura
patent: 5592905 (1997-01-01), Born
patent: 5636601 (1997-06-01), Moriya et al.
patent: 5638781 (1997-06-01), Sturman
patent: 5647311 (1997-07-01), Liang et al.
patent: 5671705 (1997-09-01), Matsumoto et al.
patent: 5782211 (1998-07-01), Kamimaru
patent: 5782454 (1998-07-01), Bulgatz et al.
patent: 5878704 (1999-03-01), Schebitz et al.
patent: 5904226 (1999-05-01), Sakaguchi et al.
patent: 6003481 (1999-12-01), Pischinger et al.
patent: 6016778 (2000-01-01), Koch
patent: 6024059 (2000-02-01), Kamimaru et al.
patent: 6039014 (2000-03-01), Hoppie
patent: 6198370 (2001-03-01), Schmitz
patent: 3641108 (1988-06-01), None
patent: 19712064 (1998-10-01), None
patent: 19714409 (1998-10-01), None
patent: 1215370 (2002-06-01), None
patent: 2808375 (2001-11-01), None
patent: WO 02/056321 (2002-07-01), None
patent: WO 2004/046511 (2004-06-01), None
Borg-Warner Inc.
Brown & Michaels PC
Chang Ching
Dziegielewski Greg
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