Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-12-01
2009-02-10
Denion, Thomas E (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S285000, C073S114760
Reexamination Certificate
active
07487634
ABSTRACT:
An exhaust gas control apparatus that includes a pressure difference sensor that detects the difference in pressure between the upstream side and the downstream side of a particulate filter (DPNR catalyst), which captures particulate matter that is present in exhaust gas. In the exhaust gas control apparatus, the pipes that introduce the pressure to the pressure difference sensor include an upstream pipe that introduces the pressure on the upstream side of the particulate filter to the pressure difference sensor. The upstream pipe includes an expanded pipe portion, which has an inner diameter greater than that of the portion of the upstream pipe near the pressure difference sensor, near the particulate filter. With this configuration, the deposition of particulate matter, soot, soluble organic fractions, and the like in the upstream pipe is suppressed, which minimizes clogging of the upstream pipe.
REFERENCES:
patent: 3889536 (1975-06-01), Sylvester
patent: 3934471 (1976-01-01), White et al.
patent: 4343194 (1982-08-01), Dehart et al.
patent: 6112575 (2000-09-01), Cocconi
patent: 7110878 (2006-09-01), Nakamura et al.
patent: 2005/0150213 (2005-07-01), Miyazaki et al.
patent: 2007/0044547 (2007-03-01), Zhang
patent: 07-224636 (1995-08-01), None
patent: 2000-345826 (2000-12-01), None
patent: 2004-019523 (2004-01-01), None
Denion Thomas E
Kenyon & Kenyon LLP
Matthias Jonathan
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Exhaust gas control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust gas control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4130134