Patents by Inventor Rudolf Huegel

Rudolf Huegel 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).

  • Publication number: 20230023677
    Abstract: An evaporator with a finned tube block with tubes and fins, wherein the tubes are arranged in rows and the fins are arranged between the tubes, with a first collection and distribution box and with a second collection and distribution box. Each of the two collection and distribution boxes has a bottom and a box lid. The respective bottom has openings for inserting the tube ends of the tubes of the finned tube block. The finned tube block is divided into evaporator flows to which groups of tubes of the finned tube block are assigned. The tubes of an evaporator flow each merge end-side into a box area of a collection and distribution box. The respective bottom of the collection and distribution boxes is designed with rim holes for inserting the tube ends in the openings.
    Type: Application
    Filed: July 25, 2022
    Publication date: January 26, 2023
    Applicant: MAHLE International GmbH
    Inventors: Gottfried DUERR, Timo PEIFER, Axel DOLDERER, Thomas SPRANGER, Frank-Heiner SCHENK, Vjekoslav BOSNJAK, Guenther FEUERECKER, Rudolf HUEGEL
  • Patent number: 9574663
    Abstract: A single-piece oil control ring for a piston may include a body having at least one upper portion and at least one lower portion each facing towards a cylinder wall of an internal combustion engine. At least one of the upper portion and the lower portion may respectively define a first surface extending substantially perpendicular to the body and a receding second surface extending from the first surface substantially at an incline. The first surface may protrude towards the cylinder wall in relation to the second surface. The first surface may have a first area of contact with the cylinder wall, and at least 95% of the first area may contact the cylinder wall.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: February 21, 2017
    Assignees: Mahle Metal Leve S/A, Mahle International GmbH
    Inventors: André Ferrarese, Rafael A. Bruno, Rudolf Huegel
  • Publication number: 20150292621
    Abstract: A single-piece oil control ring for a piston may include a body having at least one upper portion and at least one lower portion each facing towards a cylinder wall of an internal combustion engine. At least one of the upper portion and the lower portion may respectively define a first surface extending substantially perpendicular to the body and a receding second surface extending from the first surface substantially at an incline. The first surface may protrude towards the cylinder wall in relation to the second surface. The first surface may have a first area of contact with the cylinder wall, and at least 95% of the first area may contact the cylinder wall.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 15, 2015
    Inventors: André Ferrarese, Rafael A. Bruno, Rudolf Huegel