Patents by Inventor Ralf Kiemlen

Ralf Kiemlen 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).

  • Patent number: 10487707
    Abstract: A fluid supply system with a component includes a first bypass valve arranged in a control channel with a valve body adjustable at least between a first and a second position. The valve body separates the control channel into a first and a second space and has a leakage opening connecting the first space to the second space. The second space is connected to a fluid reservoir via a leakage channel, and a switchable valve is arranged in the leakage channel. A sensing device is configured to sense a property of the fluid and convey the property to a controlling device that is configured to close the valve to block the leakage channel when a predefined property is reached. A second bypass valve is configured to reduce a transient oscillation of the first bypass valve during a starting of the system.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 26, 2019
    Assignee: Mahle International GmbH
    Inventors: Ralf Kiemlen, Josef Rutha, Kai-Torsten Schmiedl, Michael Steinhoff
  • Publication number: 20190128154
    Abstract: A fluid supply system with a component includes a first bypass valve arranged in a control channel with a valve body adjustable at least between a first and a second position. The valve body separates the control channel into a first and a second space and has a leakage opening connecting the first space to the second space. The second space is connected to a fluid reservoir via a leakage channel, and a switchable valve is arranged in the leakage channel. A sensing device is configured to sense a property of the fluid and convey the property to a controlling device that is configured to close the valve to block the leakage channel when a predefined property is reached. A second bypass valve is configured to reduce a transient oscillation of the first bypass valve during a starting of the system.
    Type: Application
    Filed: April 13, 2017
    Publication date: May 2, 2019
    Inventors: Ralf Kiemlen, Josef Rutha, Kai-Torsten Schmiedl, Michael Steinhoff
  • Publication number: 20170173506
    Abstract: A suspended filter device may include a ring filter element arranged in a receiving space. A cover may be securable to a housing from beneath for closing the receiving space. A drainage element may be arranged at the bottom of the cover in an installed state, and a pin may be disposed on the filter element and be configured to close the drainage element. A dome may engage into an interior of the filter element from below when the cover is installed. A guide contour may be disposed on a free end of the dome and interact with a guide element disposed on the filter element. A spring may be supported on the cover and on the dome, and may be configured to prestress the ring filter element in an upward direction into the housing via the dome.
    Type: Application
    Filed: January 19, 2015
    Publication date: June 22, 2017
    Inventors: Engin Genc, Ralf Kiemlen
  • Patent number: 9427682
    Abstract: The invention relates to a liquid filter, having a filter housing, which contains a receiving space for a ring filter element. The liquid filter further has a no-load duct, which is opened when the ring filter element is taken out. A pin is formed on a lower end disc of the ring filter element, the pin projects parallel to the longitudinal axis. A ramp is formed on the bottom of the receiving space. The ramp is matched to the pin in such a manner that, when the ring filter element is inserted into the filter housing, the pin slides downwards on the ramp and penetrates the opening of the no-load duct. A structure is in the receiving space, the structure allows functional insertion of the ring filter element if the ring filter element slides with its pin along the ramp until the pin penetrates the opening of the no-load duct.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 30, 2016
    Assignee: Mahle International GmbH
    Inventors: Ralf Kiemlen, Engin Genc
  • Publication number: 20130043173
    Abstract: The invention relates to a liquid filter, having a filter housing, which contains a receiving space for a ring filter element. The liquid filter further has a no-load duct, which is opened when the ring filter element is taken out. A pin is formed on a lower end disc of the ring filter element, the pin projects parallel to the longitudinal axis. A ramp is formed on the bottom of the receiving space. The ramp is matched to the pin in such a manner that, when the ring filter element is inserted into the filter housing, the pin slides downwards on the ramp and penetrates the opening of the no-load duct. A structure is in the receiving space, the structure allows functional insertion of the ring filter element if the ring filter element slides with its pin along the ramp until the pin penetrates the opening of the no-load duct.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Inventors: Ralf Kiemlen, Engin Genc
  • Patent number: 8186328
    Abstract: The present invention relates to a cooling mechanism (1), in particular for cooling oil in a motor vehicle, with a housing (2) having a bracket (3), by means of which housing (2) the cooling mechanism (1) is connected to an internal combustion engine, a transmission fluid cooler (10), and an engine oil cooler (7). Pertinent to the invention is that the cooling mechanism (1) is designed in a sandwich-type manner having an intermediate module (11) positioned between the engine oil cooler (7) and the transmission fluid cooler (10), which intermediate module (11) has at least one supply/removal assembly (12) that communicates with the engine oil cooler (7) and has corresponding supply/removal lines or connections.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 29, 2012
    Assignee: Mahle International GmbH
    Inventors: Ralf Kiemlen, Phillip Lang, Ralf Zink
  • Publication number: 20100000708
    Abstract: The present invention relates to a cooling mechanism (1), in particular for cooling oil in a motor vehicle, with a housing (2) having a bracket (3), by means of which housing (2) the cooling mechanism (1) is connected to an internal combustion engine, a transmission fluid cooler (10), and an engine oil cooler (7). Pertinent to the invention is that the cooling mechanism (1) is designed in a sandwich-type manner having an intermediate module (11) positioned between the engine oil cooler (7) and the transmission fluid cooler (10), which intermediate module (11) has at least one supply/removal assembly (12) that communicates with the engine oil cooler (7) and has corresponding supply/removal lines or connections.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 7, 2010
    Inventors: Ralf Kiemlen, Phillip Lang, Ralf Zink