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Title: Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall

Abstract

The flame propagation rate resulting from a combustion event in the combustion chamber of an internal combustion engine is controlled by modulation of the heat transfer from the combustion flame to the combustion chamber walls. In one embodiment, heat transfer from the combustion flame to the combustion chamber walls is mechanically modulated by a movable member that is inserted into, or withdrawn from, the combustion chamber thereby changing the shape of the combustion chamber and the combustion chamber wall surface area. In another embodiment, heat transfer from the combustion flame to the combustion chamber walls is modulated by cooling the surface of a portion of the combustion chamber wall that is in close proximity to the area of the combustion chamber where flame speed control is desired.

Inventors:
;
Publication Date:
Research Org.:
Southwest Research Institute, San Antonio, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175043
Patent Number(s):
6,792,899
Application Number:
10/272,261
Assignee:
Southwest Research Institute
DOE Contract Number:  
AT26-98FT40398
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Roberts, Jr., Charles E., and Chadwell, Christopher J. Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall. United States: N. p., 2004. Web.
Roberts, Jr., Charles E., & Chadwell, Christopher J. Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall. United States.
Roberts, Jr., Charles E., and Chadwell, Christopher J. Tue . "Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall". United States. https://www.osti.gov/servlets/purl/1175043.
@article{osti_1175043,
title = {Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall},
author = {Roberts, Jr., Charles E. and Chadwell, Christopher J.},
abstractNote = {The flame propagation rate resulting from a combustion event in the combustion chamber of an internal combustion engine is controlled by modulation of the heat transfer from the combustion flame to the combustion chamber walls. In one embodiment, heat transfer from the combustion flame to the combustion chamber walls is mechanically modulated by a movable member that is inserted into, or withdrawn from, the combustion chamber thereby changing the shape of the combustion chamber and the combustion chamber wall surface area. In another embodiment, heat transfer from the combustion flame to the combustion chamber walls is modulated by cooling the surface of a portion of the combustion chamber wall that is in close proximity to the area of the combustion chamber where flame speed control is desired.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {9}
}

Patent:

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