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}
}