Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2002-12-23
2004-10-05
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S501000, C123S503000
Reexamination Certificate
active
06799561
ABSTRACT:
BACKGROUND
1. Field
Embodiments of the present invention relate to systems and methods for reducing engine emissions in a diesel engine, such as a locomotive diesel engine.
2. Description of Related Art
Locomotive manufacturers and remanufacturers supply locomotive diesel engines to the rail transportation industry, which includes establishments furnishing transportation by line-haul railroad, as well as switching and terminal establishments. In recent years, Environmental Protection Agency (EPA) emissions standards for locomotive diesel engines have become increasingly demanding. In particular, standards enacted under the Federal Clean Air Act of 1998 require significant reductions of individual emission compounds, including oxides of nitrogen (NO
x
). NO
x
gases, which include the compounds nitrogen oxide (NO) and nitrogen dioxide (NO
2
), are a major component of smog and acid rain.
Exhaust from a locomotive diesel engine includes various gaseous constituents, such as NO
x
, carbon monoxide (CO), carbon dioxide (CO
2
), and hydrocarbons (HC), as well as particulate matter. Severe environmental and economic consequences may ensue if locomotive engine emissions do not comply with applicable EPA standards.
U.S. Pat. No. 6,470,844 to Biess et al. discloses a system and method that automatically shuts down a primary engine of a locomotive after the primary engine has been idling for a predetermined period of time. A small secondary engine is started to perform useful functions on behalf of the shut-down primary engine. Because it reduces locomotive idle time, this approach reduces engine emissions. However, engine emissions remain a cause for concern when the primary engine is running.
Therefore, what is needed is a system and method for reducing engine emissions in a locomotive.
REFERENCES:
patent: 3566849 (1971-03-01), Frick
patent: 4327694 (1982-05-01), Henson et al.
patent: 4838232 (1989-06-01), Wich
patent: 4881506 (1989-11-01), Hoecker
patent: 4886640 (1989-12-01), Garner, Jr. et al.
patent: 5033442 (1991-07-01), Perr et al.
patent: 5048480 (1991-09-01), Price
patent: 5097812 (1992-03-01), Augustin
patent: 5396871 (1995-03-01), Faupel et al.
patent: 5409165 (1995-04-01), Carroll, III et al.
patent: 5487651 (1996-01-01), Guentert et al.
patent: 5638793 (1997-06-01), Rapp et al.
patent: 5685273 (1997-11-01), Johnson et al.
patent: 6009850 (2000-01-01), DeLuca
patent: 6082335 (2000-07-01), Kampichler et al.
patent: 6305358 (2001-10-01), Lukich
patent: 6321723 (2001-11-01), Merkle et al.
patent: 732982 (1955-02-01), None
patent: 1 431 747 (1976-04-01), None
patent: 62-17364 (1987-01-01), None
Paul G. Burman and Frank Deluca, “Fuel Injection and Controls for Internal Combustion Engines,” Simmons-Boardman Publishing Corporation, pp. 69 and 165, (1962).
EXHIBIT #1 as Described in Attached IDS.
GE Instructions on Large Bendix Fuel-Oil Injection Pump GE Parts 132X1254-1, 132X1535 and 132X1715, pp. 1-16 (Feb. 1991).
Miller David P.
Stewart Ted E.
CSXT Intellectual Properties Corporation
Gimie Mahmoud
Pillsbury & Winthrop LLP
LandOfFree
System and method of optimizing fuel injection timing in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of optimizing fuel injection timing in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of optimizing fuel injection timing in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3318855