Patents by Inventor Wilfried Rhode

Wilfried Rhode 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).

  • Internal combustion engine having a low-pressure exhaust-gas recirculation
    Patent number: 7921639
    Abstract: An internal combustion engine includes an exhaust-gas tract and a supply system for combustion air. A compressor of an exhaust-gas turbocharger is disposed in the supply system for combustion air. A turbine of the exhaust-gas turbocharger, a first particulate filter, and an adjustable exhaust-gas throttle are disposed in series in a downstream direction in the exhaust-gas tract. A low-pressure exhaust-gas recirculation line branches off from the exhaust-gas tract downstream of the first particulate filter and discharges into the supply system for combustion air upstream of the compressor. An exhaust-gas recirculation cooler, an exhaust-gas recirculation valve, and a second particulate filter with a filter mesh size of at least 50 ?m are disposed in the low-pressure exhaust-gas recirculation line.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: April 12, 2011
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Kerstin Silbermann, Wilfried Rhode, Janet Schlothauer, Arnd Schmidt
  • Internal combustion engine having a low-pressure exhaust-gas recirculation
    Publication number: 20080041051
    Abstract: An internal combustion engine includes an exhaust-gas tract and a supply system for combustion air. A compressor of an exhaust-gas turbocharger is disposed in the supply system for combustion air. A turbine of the exhaust-gas turbocharger, a first particulate filter, and an adjustable exhaust-gas throttle are disposed in series in a downstream direction in the exhaust-gas tract. A low-pressure exhaust-gas recirculation line branches off from the exhaust-gas tract downstream of the first particulate filter and discharges into the supply system for combustion air upstream of the compressor. An exhaust-gas recirculation cooler, an exhaust-gas recirculation valve, and a second particulate filter with a filter mesh size of at least 50 ?m are disposed in the low-pressure exhaust-gas recirculation line.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 21, 2008
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Kerstin Silbermann, Wilfried Rhode, Janet Schlothauer, Arnd Schmidt