Patents by Inventor Ronald Ritzen

Ronald Ritzen 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).

  • Valve device and fuel filter module
    Patent number: 10927801
    Abstract: A valve device for a fuel filter module has a first fluid channel through which fuel flows only in recirculation mode of the fuel filter module and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel. The first and second fluid channels are coaxial to each other. A fuel filter module switchable into recirculation mode and out of recirculation mode is provided with a control valve that has a valve bore and a valve device arranged in the valve bore, wherein the valve device has a first fluid channel through which fuel flows only in recirculation mode and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel, and the first and second fluid channels are coaxial to each other.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: February 23, 2021
    Assignee: MANN+HUMMEL GmbH
    Inventors: Martin Weindorf, Rafael Salom, Felix Lippert, Ronald Ritzen, Achim Missner
  • Valve Device and Fuel Filter Module
    Publication number: 20190160403
    Abstract: A valve device for a fuel filter module has a first fluid channel through which fuel flows only in recirculation mode of the fuel filter module and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel. The first and second fluid channels are coaxial to each other. A fuel filter module switchable into recirculation mode and out of recirculation mode is provided with a control valve that has a valve bore and a valve device arranged in the valve bore, wherein the valve device has a first fluid channel through which fuel flows only in recirculation mode and a second fluid channel through which fuel flows only outside of the recirculation mode. The first fluid channel extends inside the second fluid channel, and the first and second fluid channels are coaxial to each other.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Martin Weindorf, Rafael Salom, Felix Lippert, Ronald Ritzen, Achim Missner