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Title: Homogenous charge compression ignition engine having a cylinder including a high compression space

Abstract

The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fuel mixes with air in the cylinder as the power piston advances to create a relatively lean homogeneous mixture that preferably ignites when the power piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. Thus, the present invention divides the homogeneous charge between a controlled volume higher compression space and a lower compression space to better control the start of ignition.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Caterpillar Inc, Peoria, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174651
Patent Number(s):
6668788
Application Number:
10/029,417
Assignee:
Caterpillar Inc (Peoria, IL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
DOE Contract Number:  
FC05-97OR22605
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING

Citation Formats

Agama, Jorge R., Fiveland, Scott B., Maloney, Ronald P., Faletti, James J., and Clarke, John M. Homogenous charge compression ignition engine having a cylinder including a high compression space. United States: N. p., 2003. Web.
Agama, Jorge R., Fiveland, Scott B., Maloney, Ronald P., Faletti, James J., & Clarke, John M. Homogenous charge compression ignition engine having a cylinder including a high compression space. United States.
Agama, Jorge R., Fiveland, Scott B., Maloney, Ronald P., Faletti, James J., and Clarke, John M. Tue . "Homogenous charge compression ignition engine having a cylinder including a high compression space". United States. https://www.osti.gov/servlets/purl/1174651.
@article{osti_1174651,
title = {Homogenous charge compression ignition engine having a cylinder including a high compression space},
author = {Agama, Jorge R. and Fiveland, Scott B. and Maloney, Ronald P. and Faletti, James J. and Clarke, John M.},
abstractNote = {The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fuel mixes with air in the cylinder as the power piston advances to create a relatively lean homogeneous mixture that preferably ignites when the power piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. Thus, the present invention divides the homogeneous charge between a controlled volume higher compression space and a lower compression space to better control the start of ignition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {12}
}

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Works referenced in this record:

The Knocking Syndrome - Its Cure and Its Potential
conference, October 1998

  • Willand, Jürgen; Nieberding, Rolf-Günther; Vent, Guido
  • International Fall Fuels and Lubricants Meeting and Exposition, SAE Technical Paper Series
  • https://doi.org/10.4271/982483

Homogeneous Charge Compression Ignition (HCCI): Benefits, Compromises, and Future Engine Applications
conference, October 1999