Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1994-01-27
1995-12-26
Yeung, James C.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60300, 60303, 165 96, F01N 320
Patent
active
054776767
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.
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Benson David K.
Potter Thomas F.
Midwest Research Institute
O'Connor Daniel J.
O'Connor Edna M.
Yeung James C.
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