Measuring and testing – Internal combustion engine or related engine system or... – Fuel consumption
Reexamination Certificate
2007-03-02
2009-11-24
McCall, Eric S (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Fuel consumption
C073S114380
Reexamination Certificate
active
07621174
ABSTRACT:
A fuel cetane determination device for an engine is disclosed. In one embodiment, the device comprises a controller that is arranged and configured to determine a rapidness of combustion based on a parameter relating to a combustion state of an engine. The controller is further arranged and configured to determine the cetane value of the fuel in use by the engine based on the rapidness of combustion from a correlation between the rapidness of combustion and the cetane value when the engine is in a first operating condition. The controller is further arranged and configured to determine the cetane value of the fuel in use by the engine based on the rapidness of combustion from a correlation between the rapidness of combustion and the cetane value when the engine is in a second operating condition. The correlation for the second operating condition has a different characteristic tendency from the correlation for the first operating condition. A method is also disclosed.
REFERENCES:
patent: 5457985 (1995-10-01), Cellier et al.
patent: 7246596 (2007-07-01), Yamaguchi et al.
patent: 7322341 (2008-01-01), Yamaguchi et al.
patent: 7360525 (2008-04-01), Yamaguchi et al.
patent: 7367223 (2008-05-01), Kettl et al.
patent: 7401591 (2008-07-01), Yamaguchi et al.
patent: 2004/0154386 (2004-08-01), Shinzawa
patent: 2007/0079647 (2007-04-01), Aoyama
patent: 2007/0151542 (2007-07-01), Yamaguchi et al.
patent: 0610118 (1994-08-01), None
patent: 1793110 (2007-06-01), None
patent: 2004340026 (2004-12-01), None
patent: WO-2005119034 (2005-12-01), None
European Search Report No. 07103245.2-1263 dated Jun. 21, 2007.
Global IP Counselors, LLP
McCall Eric S
Nissan Motor Co,. Ltd.
LandOfFree
Device for detecting cetane value of fuel used by an engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for detecting cetane value of fuel used by an engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for detecting cetane value of fuel used by an engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4058215