Method and apparatus for thermal management of vehicle exhaust systems
Abstract
A catalytic converter is surrounded by variable conductance insulation for maintaining the operating temperature of the catalytic converter at an optimum level, for inhibiting heat loss when raising catalytic converter temperature to light-off temperature, for storing excess heat to maintain or accelerate reaching light-off temperature, and for conducting excess heat away from the catalytic converter after reaching light-off temperature. The variable conductance insulation includes vacuum gas control and metal-to-metal thermal shunt mechanisms. Radial and axial shielding inhibits radiation and convection heat loss. Thermal storage media includes phase change material, and heat exchanger chambers and fluids carry heat to and from the catalytic converter.
- Inventors:
-
- Golden, CO
- Denver, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 870218
- Patent Number(s):
- 5477676
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B64 - AIRCRAFT B64G - COSMONAUTICS
E - FIXED CONSTRUCTIONS E04 - BUILDING E04C - STRUCTURAL ELEMENTS
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; thermal; management; vehicle; exhaust; systems; catalytic; converter; surrounded; variable; conductance; insulation; maintaining; operating; temperature; optimum; level; inhibiting; heat; loss; raising; light-off; storing; excess; maintain; accelerate; reaching; conducting; vacuum; gas; control; metal-to-metal; shunt; mechanisms; radial; axial; shielding; inhibits; radiation; convection; storage; media; phase; change; material; exchanger; chambers; fluids; carry; thermal management; catalytic converter; metal thermal; heat loss; change material; phase change; heat exchange; heat exchanger; operating temperature; thermal storage; excess heat; storage media; gas control; convection heat; carry heat; optimum level; /60/165/
Citation Formats
Benson, David K, and Potter, Thomas F. Method and apparatus for thermal management of vehicle exhaust systems. United States: N. p., 1995.
Web.
Benson, David K, & Potter, Thomas F. Method and apparatus for thermal management of vehicle exhaust systems. United States.
Benson, David K, and Potter, Thomas F. Sun .
"Method and apparatus for thermal management of vehicle exhaust systems". United States. https://www.osti.gov/servlets/purl/870218.
@article{osti_870218,
title = {Method and apparatus for thermal management of vehicle exhaust systems},
author = {Benson, David K and Potter, Thomas F},
abstractNote = {A catalytic converter is surrounded by variable conductance insulation for maintaining the operating temperature of the catalytic converter at an optimum level, for inhibiting heat loss when raising catalytic converter temperature to light-off temperature, for storing excess heat to maintain or accelerate reaching light-off temperature, and for conducting excess heat away from the catalytic converter after reaching light-off temperature. The variable conductance insulation includes vacuum gas control and metal-to-metal thermal shunt mechanisms. Radial and axial shielding inhibits radiation and convection heat loss. Thermal storage media includes phase change material, and heat exchanger chambers and fluids carry heat to and from the catalytic converter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
Works referenced in this record:
Use of Light-Off Catalysts to Meet the California LEV/ULEV Standards
conference, March 1993
- Summers, J. C.; Skowron, J. F.; Miller, M. J.
- International Congress & Exposition, SAE Technical Paper Series