Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Reexamination Certificate
2007-09-18
2010-11-02
Bastianelli, John (Department: 3753)
Valves and valve actuation
Electrically actuated valve
Remote or follow-up control system for electrical actuator
C361S156000
Reexamination Certificate
active
07823860
ABSTRACT:
An electromagnetic valve driving apparatus is provided for reducing emission noise generated when a discharge switching element is turned off. In the apparatus, a discharging capacitor stores electrical energy for performing discharge to a coil in an electromagnetic valve and charging means generates voltage from a power source voltage, which voltage is higher than that of the power source voltage. A discharge switching element is provided in series in a current path extending from the discharging capacitor to an up-stream side terminal of the coil. Controlling means turns on/off the discharge switching element. Circulating means is provided in the current path for circulation of current to the coil. Sub-discharging means is provided in the current path, for starting discharge to the coil when the discharge switching element is turned off, and for circulating current to the coil through the circulating means when the discharge to the coil is completed.
REFERENCES:
patent: 4628885 (1986-12-01), Ogburn et al.
patent: 5109885 (1992-05-01), Tauscher
patent: 5936827 (1999-08-01), Dressler et al.
patent: 5954030 (1999-09-01), Sturman et al.
patent: 5960627 (1999-10-01), Krampe et al.
patent: 6123092 (2000-09-01), Torii
patent: 6236554 (2001-05-01), Groppo et al.
patent: 6363895 (2002-04-01), Butzmann et al.
patent: 6400106 (2002-06-01), Magruder et al.
patent: 6407593 (2002-06-01), Kawamoto et al.
patent: 2003/0140899 (2003-07-01), Bolz
patent: 196 36 507 (1997-03-01), None
patent: 1 288 973 (2003-03-01), None
patent: 2 772 972 (1999-06-01), None
patent: H 08-022336 (1996-01-01), None
patent: 09-306732 (1997-11-01), None
patent: 11-055937 (1999-02-01), None
patent: 11-141381 (1999-05-01), None
patent: 2001-015332 (2001-01-01), None
patent: 2003-065128 (2003-03-01), None
patent: 2003-086422 (2003-03-01), None
patent: 2005-330934 (2005-12-01), None
Extended European Search Report dated May 15, 2009, issued in corresponding European Application No. 07116652.4-1263.
Office Action dated May 25, 2010 issued in corresponding Japanese Application No. 2006-254658 with an at least partial English-language translation thereof.
Bastianelli John
Denso Corporation
Nixon & Vanderhye P.C.
LandOfFree
Drive of an electromagnetic valve with a coil by supplying... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drive of an electromagnetic valve with a coil by supplying..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive of an electromagnetic valve with a coil by supplying... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4217199