Patents by Inventor Charles Ruyer

Charles Ruyer 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).

  • Reduced load working cycle for a four-stroke combustion engine and engines using said cycle
    Patent number: 4250850
    Abstract: The invention relates to piston-type internal combustion engines.A four-stroke engine in which, on reduced load, a part of the cylinders is used as combustion cylinders, the other part forming an additional expansion enclosure for the gases issuing from the combustion cylinders before their expulsion into the atmosphere. The engine operates on full load according to the conventional cycle.Application to the improvement of the output for motor vehicle engines when they operate on medium or low load.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: February 17, 1981
    Inventor: Charles Ruyer