skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Patent ·
OSTI ID:1531530
; ; ;

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.

Research Organization:
Caterpillar Inc., Deerfield, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC05-97OR22605
Assignee:
Caterpillar Inc. (Peoria, IL)
Patent Number(s):
7,219,649
Application Number:
11/201,238
OSTI ID:
1531530
Resource Relation:
Patent File Date: 2005-08-10
Country of Publication:
United States
Language:
English

References (16)

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-application February 2002
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
Control strategy for HCCI-CD combustion in a diesel engine using two fuel injection phases patent April 2006
Premixed charge compression ignition engine with variable speed SOC control and method of operation patent February 2003
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
Homogeneous charge compression ignition engine and method for operating homogeneous charge compression ignition engine patent December 2005
Fuel injector having dual mode capabilities and engine using same patent-application April 2003
Dual mode fuel injector patent-application March 2004
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

Cited By (5)

Combustion system including a piston crown and fuel injector patent July 2017
Method of operating cryogenic pump and cryogenic pump system patent September 2018
Method and system for conserving fuel in a diesel engine patent May 2011
Fuel delivery system patent March 2017
Injector valve patent August 2018

Similar Records

Related Subjects