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Thermoelectric system for an engine

United States Patent

June 22, 2010
View the Complete Patent at the US Patent & Trademark Office
An internal combustion engine that includes a block, a cylinder head having an intake valve port and exhaust valve port formed therein, a piston, and a combustion chamber defined by the block, the piston, and the head. At least one thermoelectric device is positioned within either or both the intake valve port and the exhaust valve port. Each of the valves is configured to move within a respective intake and exhaust valve port thereby causing said valves to engage the thermoelectric devices resulting in heat transfer from the valves to the thermoelectric devices. The intake valve port and exhaust valve port are configured to fluidly direct intake air and exhaust gas, respectively, into the combustion chamber and the thermoelectric device is positioned within the intake valve port, and exhaust valve port, such that the thermoelectric device is in contact with the intake air and exhaust gas.
Mcgilvray; Andrew N. (East Peoria, IL), Vachon; John T. (Peoria, IL), Moser; William E. (Peoria, IL)
Caterpillar Inc. (Peoria, IL)
11/ 803,402
May 14, 2007
U.S. GOVERNMENT RIGHTS This invention was made with government support under the terms of DE-FC26-04NT42280 awarded by the Department of Energy. The government may have certain rights in this invention.