Patents by Inventor André Chèvrefils

André Chèvrefils 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).

  • Low volumetric compression ratio integrated turbo-compound rotary engine
    Patent number: 7775044
    Abstract: A compound cycle engine (10) comprises a compressor and a turbine section (14, 18), and at least one cycle topping device (16) providing an energy input to the turbine section (18). The compressor section (14) compresses the air according to a pressure ratio PRgt. The cycle topping device (16) further compresses the air according to a volumetric compression ratio Rvc, and wherein PRgt×Rvc are selected, according to one aspect of the invention, to provide a cycle which permit a more compact and lighter compound cycle engine to be provided.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: August 17, 2010
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: André Julien, André Chèvrefils