Patents by Inventor Roland Doll

Roland Doll 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: 7073329
    Abstract: In a multistage oil pumping system for an oil supply system of a motor vehicle comprising at least two oil pumps arrange axially in side-by-side relationship, each of the oil pumps is connected to a separate drive so that the oil pumps can be operated independently of one another.
    Type: Grant
    Filed: June 12, 2004
    Date of Patent: July 11, 2006
    Assignee: Daimler Chrysler AG.
    Inventors: Reinhold Brühl, Roland Doll, Frank Weinert
  • Publication number: 20040265138
    Abstract: In a multistage oil pumping system for an oil supply system of a motor vehicle comprising at least two oil pumps arrange axially in side-by-side relationship, each of the oil pumps is connected to a separate drive so that the oil pumps can be operated independently of one another.
    Type: Application
    Filed: June 12, 2004
    Publication date: December 30, 2004
    Inventors: Reinhold Bruhl, Roland Doll, Frank Weinert
  • Patent number: 6046520
    Abstract: In a liquid-cooled generator including a generator structure disposed in a housing in spaced relationship therefrom so as to form a narrow space between the generator structure and the housing wherein the housing has inlet and exit opening for conducting a coolant through the annular space, a restriction is disposed in the annular space between the inlet and the exit openings and the inlet opening extends essentially tangentially to the inner wall of the generator housing so as to establish in the annular space an essentially circumferential coolant flow.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: April 4, 2000
    Assignee: DaimlerChrysler AG
    Inventors: Jochen Betsch, Gerhard Doll, Roland Doll
  • Patent number: 5704329
    Abstract: In a front cover which is mounted on the front end of an internal combustion engine to cover an engine camshaft drive mechanism and which includes means for supporting auxiliary engine components such as a power steering pump, the front cover further includes a slide-in mounting structure supporting a container which, when inserted into the slide-in mounting structure, is firmly supported by the front cover and communicatively connected to an auxiliary engine component.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: January 6, 1998
    Assignee: Mercedes-Benz AG
    Inventors: Heiko Bublitz, Roland Doll, Uwe Kooths, Peter Lindeckert