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Title: Engine system and method of operating same over multiple engine load ranges

Abstract

A method of operating an engine system should produce relatively low concentrations of various emissions without compromising a desired power output of the system. In order to operate an engine system of the present disclosure, a predetermined total amount of fuel injected into at least one combustion chamber is apportioned into at least a first amount and a second amount of fuel. The first amount of fuel is injected into the at least one combustion chamber during non-auto ignition conditions. The second amount of fuel is injected into the at least one combustion chamber during auto-ignition conditions. When the engine system is in a mid-low engine load range, the second amount of fuel is one of equal to or less than 15% of the predetermined total amount of fuel. When the engine system is in a high engine load range, the second amount of fuel is greater than 15% of the predetermined total amount of fuel.

Inventors:
; ; ;
Issue Date:
Research Org.:
Caterpillar Inc., Deerfield, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531530
Patent Number(s):
7219649
Application Number:
11/201,238
Assignee:
Caterpillar Inc. (Peoria, IL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
DOE Contract Number:  
FC05-97OR22605
Resource Type:
Patent
Resource Relation:
Patent File Date: 2005-08-10
Country of Publication:
United States
Language:
English

Citation Formats

Duffy, Kevin P., Urven, Jr., Roger L., Brown, Cory A., and Kesse, Mary L.. Engine system and method of operating same over multiple engine load ranges. United States: N. p., 2007. Web.
Duffy, Kevin P., Urven, Jr., Roger L., Brown, Cory A., & Kesse, Mary L.. Engine system and method of operating same over multiple engine load ranges. United States.
Duffy, Kevin P., Urven, Jr., Roger L., Brown, Cory A., and Kesse, Mary L.. Tue . "Engine system and method of operating same over multiple engine load ranges". United States. https://www.osti.gov/servlets/purl/1531530.
@article{osti_1531530,
title = {Engine system and method of operating same over multiple engine load ranges},
author = {Duffy, Kevin P. and Urven, Jr., Roger L. and Brown, Cory A. and Kesse, Mary L.},
abstractNote = {A method of operating an engine system should produce relatively low concentrations of various emissions without compromising a desired power output of the system. In order to operate an engine system of the present disclosure, a predetermined total amount of fuel injected into at least one combustion chamber is apportioned into at least a first amount and a second amount of fuel. The first amount of fuel is injected into the at least one combustion chamber during non-auto ignition conditions. The second amount of fuel is injected into the at least one combustion chamber during auto-ignition conditions. When the engine system is in a mid-low engine load range, the second amount of fuel is one of equal to or less than 15% of the predetermined total amount of fuel. When the engine system is in a high engine load range, the second amount of fuel is greater than 15% of the predetermined total amount of fuel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {5}
}

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Works referenced in this record:

Dual mode fuel injector
patent, August 2006


Premixed charge compression ignition engine with optimal combustion control
patent, May 2001


Fuel injector having dual mode capabilities and engine using same
patent, April 2004


Internal combustion engine operable in PCCI mode with post-ignition injection and method of operation
patent, February 2004


Two-stage fuel injection nozzle
patent, October 1995


Compression-ignition type engine
patent, February 2001


Multiple operating mode engine and method of operation
patent, May 2003


Mixed mode fuel injector and injection system
patent, December 2005


Internal combustion engine operable in PCCI mode with early control injection and method of operation
patent, December 2003


Combustion control apparatus for internal combustion engine
patent, September 2003


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