Patents by Inventor Matei Marinescu

Matei Marinescu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High efficiency thermoelectric generator for the direct conversion of heat into electrical energy
    Patent number: 4039352
    Abstract: The present invention concerns a new thermoelectric generator, the operation of which is due to a new effect that takes place in a closed chain uniformly heated at an optimum temperature, the chain consisting of a semi-conductor comprises between two different metals the difference of the work-function of which are related to the value of the optimum temperature quantitatively, through a certain formula given in the specification. For maximum electric power delivered, the concentration of the holes into the semiconductor must be of the order of 10.sup.18 n/cm.sup.3, and the concentration of electrons into the same of the order of 10.sup.8 n/cm.sup.3, at 20.degree. C. Such a chain has in the absence of any temperature gradient, an efficiency near unity.
    Type: Grant
    Filed: December 10, 1973
    Date of Patent: August 2, 1977
    Assignee: Institutul de Cercetaro Energetice Industriale si Proictari Utilaje Energetice
    Inventor: Matei Marinescu