Patents by Inventor Revi K. Nigam

Revi K. Nigam 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).

  • Scram jet engine design
    Patent number: 6715293
    Abstract: The present invention relates to a scram jet engine for use with a hypersonic vehicle. The scram jet engine has an upper boundary wall, a lower boundary wall, and a plurality of side walls defining an inner air flowpath. The walls are formed by a plurality of tubular heat exchanger panels. Each of the heat exchanger panels comprises a plurality of structural panels, each having a plurality of cooling passages, joined together. In the scram jet engine of the present invention, fuel may be used as a coolant and supplied to the cooling passage.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 6, 2004
    Assignee: United Technologies Corporation
    Inventors: Mark A. Sillence, Daniel P. Guinan, Dennis J. Nemecek, Costante Salvador, Henry K. Webster, Thomas B. Fortin, Sergio Rinella, Revi K. Nigam