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flame to the combustion chamber walls is mechanically modulated by a movable member that is inserted into, or withdrawn from, the combustion chamber thereby changing the shape of the combustion chamber and the combustion chamber wall surface area.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:
- Issue Date:
- Research Org.:
- Southwest Research Institute, San Antonio, TX (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175043
- Patent Number(s):
- 6792899
- Application Number:
- 10/272,261
- Assignee:
- Southwest Research Institute
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
- 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}
}