Patents by Inventor Erik Thorwirth

Erik Thorwirth 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).

  • Control valve, in particular for metering in a fluid for a delivery pump which is arranged downstream
    Patent number: 9719475
    Abstract: A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: August 1, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Erik Thorwirth, Winfried Eckart, Dominik Brunner, Christian Heinen
  • CONTROL VALVE, IN PARTICULAR FOR METERING IN A FLUID FOR A DELIVERY PUMP WHICH IS ARRANGED DOWNSTREAM
    Publication number: 20160010612
    Abstract: A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Erik Thorwirth, Winfried Eckart, Dominik Brunner, Christian Heinen
  • Control valve, in particular for metering in a fluid for a delivery pump which is arranged downstream
    Patent number: 9181910
    Abstract: A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 10, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Erik Thorwirth, Winfried Eckart, Dominik Brunner, Christian Heinen
  • CONTROL VALVE, IN PARTICULAR FOR METERING IN A FLUID FOR A DELIVERY PUMP WHICH IS ARRANGED DOWNSTREAM
    Publication number: 20120247592
    Abstract: A control valve is provided, in particular for metering in a fluid for a delivery pump which is arranged downstream. The control valve has a flow channel, an axially movable valve needle, and a valve element which can be loaded by the valve needle in an opening direction and is arranged in the flow channel. If the valve element is actuated in the opening direction by the valve needle, the fluid can flow back through the flow channel at least temporarily counter to the opening direction of the valve element. Upstream of the valve element as viewed in the backflow direction, the flow channel has a fluidically active shield which keeps the backflow at least partially free of a face of the valve element.
    Type: Application
    Filed: October 13, 2010
    Publication date: October 4, 2012
    Inventors: Erik Thorwirth, Winfried Eckart, Dominik Brunner, Christian Heinen