Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate
2007-03-27
2007-03-27
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
C123S568110, C073S118040
Reexamination Certificate
active
10539069
ABSTRACT:
An intake pipe downstream of a throttle valve is interconnected with an exhaust pipe via an EGR supply pipe and an EGR control valve is disposed in the EGR supply pipe. An engine load ratio (KLoff) in the engine steady operation with the EGR gas being not supplied, and another engine load ratio KLon in the engine steady operation with the EGR gas being supplied are expressed with respective linear functions of an intake pipe pressure (Pm) and stored in advance. The intake pipe pressure (Pm) is detected, KLoff and KLon are calculated from the detected intake pipe pressure (Pm) using the linear function expressions and, then, a difference between these values ΔKL (=KLoff−KLon) is calculated. Based on the difference (ΔKL), the EGR control valve passing-through gas amount, which is an amount of the EGR gas passing through the EGR control valve, is calculated.
REFERENCES:
patent: 5505174 (1996-04-01), Komoriya et al.
patent: 5791319 (1998-08-01), Friedrich et al.
patent: 6497214 (2002-12-01), Yagi
patent: 6571767 (2003-06-01), Kabayashi et al.
patent: 6711490 (2004-03-01), Kabayashi et al.
patent: 6840235 (2005-01-01), Koseki et al.
patent: 6856890 (2005-02-01), Muto et al.
patent: 6879904 (2005-04-01), Muto et al.
patent: 7146268 (2006-12-01), Wild et al.
patent: 2001/0029935 (2001-10-01), Cook
patent: 3503798 (1986-08-01), None
patent: 0 485 089 (1992-05-01), None
patent: 0 791 736 (1997-08-01), None
patent: A 8-128359 (1996-05-01), None
patent: A 2001-41095 (2001-02-01), None
patent: A 2002-130039 (2002-05-01), None
patent: A 2002-147279 (2002-05-01), None
patent: A 2002-180877 (2002-06-01), None
patent: A 2002-201998 (2002-07-01), None
Ido Yuichiro
Kobayashi Daisuke
Muto Harufumi
Gimie Mahmoud
Oliff & Berridg,e PLC
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Apparatus for calculating amount of recirculated exhaust gas... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for calculating amount of recirculated exhaust gas..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for calculating amount of recirculated exhaust gas... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3796245