Patents by Inventor Jan Steffens

Jan Steffens 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: 20250155120
    Abstract: A combustion chamber wall for a combustion chamber assembly (100) of a heating device (1) in a vehicle is arranged to form a combustion chamber (8). It comprises a cylindrical circumferential wall (44), which defines a central axis (C) extending in the axial direction (X). At least one structure (22) for introducing an oxidizer into the combustion chamber (8) is formed in the circumferential wall (44). The structure comprises a cutout recess (52) formed in the circumferential wall, which forms an introduction opening, and a worked section (54) formed in the circumferential wall (44), which is deformed in a radial direction (R) towards the central axis (C). In a circumferential direction (P) of the circumferential wall (44), the cutout recess (52) directly adjoins the worked section (52) which is deformed towards the central axis (C).
    Type: Application
    Filed: November 8, 2024
    Publication date: May 15, 2025
    Inventors: Vitali Dell, Thorsten Pannwitz, Dhaval Kulkarni, Jan Steffens
  • Patent number: 11198347
    Abstract: An evaporator assembly (10), in particular for a fuel-operated vehicle heater (12), comprising a pot-like evaporator reception (14), an evaporator body (16) inserted into the pot-like evaporator reception (14), a plate-like designed hold-down element (18), which is fixed to the evaporator reception (14) and fixes the evaporator body (16) in the evaporator reception (14), and wherein the plate-like designed hold-down element (18) has at least one retaining claw (22), which has an upper part (26) on an upper side (24) of the plate-like designed hold-down element (18) and a lower part (30) on a lower side (28) of the plate-like designed hold-down element (18), wherein the upper part (26) and the lower part (30) point away from the plate-like designed hold-down element (18).
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 14, 2021
    Assignee: WEBASTO SE
    Inventors: Klaus Mösl, Bengt Meier, Vitali Dell, Jan Steffens
  • Publication number: 20200384832
    Abstract: An evaporator assembly (10), in particular for a fuel-operated vehicle heater (12), comprising a pot-like evaporator reception (14), an evaporator body (16) inserted into the pot-like evaporator reception (14), a plate-like designed hold-down element (18), which is fixed to the evaporator reception (14) and fixes the evaporator body (16) in the evaporator reception (14), and wherein the plate-like designed hold-down element (18) has at least one retaining claw (22), which has an upper part (26) on an upper side (24) of the plate-like designed hold-down element (18) and a lower part (30) on a lower side (28) of the plate-like designed hold-down element (18), wherein the upper part (26) and the lower part (30) point away from the plate-like designed hold-down element (18).
    Type: Application
    Filed: October 23, 2018
    Publication date: December 10, 2020
    Inventors: KLAUS MÖSL, BENGT MEIER, VITALI DELL, JAN STEFFENS
  • Publication number: 20090239184
    Abstract: A burner for a heater, especially for use in motor vehicles, with a burner nozzle (12) for supplying and atomizing of fuel, which has a fuel needle (14) for supplying fuel to the burner (10) and a combustion air supply (16) for supplying combustion air to the burner, and a starting zone (18) in which ignition of the fuel to start the burner takes place. It is provided that, by choosing the inside diameter of the fuel needle (14) the exit speed of the fuel is predetermined such that, during the starting phase of the burner (10), fuel in essentially unatomized form reaches the starting zone (18).
    Type: Application
    Filed: November 16, 2005
    Publication date: September 24, 2009
    Inventors: Michael Pöhner, Friedrich Widemann, Steffen Weber, Jan Steffens
  • Publication number: 20090220901
    Abstract: A burner for a heater, especially for motor vehicles, has an essentially axially symmetrical combustion chamber, a burner nozzle for supply and atomization of fuel, a fuel needle for supplying fuel to the combustion chamber, a combustion air supply for supplying combustion air to the combustion chamber, a starting zone in which ignition of the fuel to start the burner takes place, a heat shield between the burner nozzle and the combustion chamber, the heat shield having openings for supplying secondary air to the combustion chamber, and a baffle plate located in the combustion chamber. By choosing the inside diameter of the fuel needle, the exit speed of the fuel is predetermined such that, during the starting phase of the burner; fuel in essentially unatomized form reaches the starting zone. The openings have air guide elements, and the baffle plate has a defined curvature in the axial direction.
    Type: Application
    Filed: November 16, 2005
    Publication date: September 3, 2009
    Applicant: Webasto AG
    Inventors: Michael Poehner, Friedrich Widemann, Steffen Weber, Jan Steffens
  • Publication number: 20090220903
    Abstract: A burner (10) for a heater, especially for use in motor vehicles, with a burner nozzle (12) for supplying of fuel and primary air, a combustion chamber (22), and a heat shield (24) between the burner nozzle and the combustion chamber, the heat shield having openings (26) for supplying secondary air to the combustion chamber. The openings (26) are equipped with air guide elements (28, 30).
    Type: Application
    Filed: November 16, 2005
    Publication date: September 3, 2009
    Applicant: Webasto AG
    Inventors: Michael Poehner, Friedrich Widemann, Steffen Weber, Jan Steffens
  • Publication number: 20090220902
    Abstract: A burner (10) for a heater, especially for use in motor vehicles, with an essentially axially symmetrical combustion chamber (22) and a baffle plate (36) which is located in the combustion chamber. The baffle plate (36) has a defined curvature in an axial direction and that there is a curvature in the direction of the burnout zone (32). An outer periphery of the baffle plate defines a plane and a maximum axial distance of the baffle plate from this plane Dm and the diameter of the baffle plate Bd have dimensions that have a ratio Dm:Bd relative to each other that is between 0.07 and 0.21.
    Type: Application
    Filed: November 16, 2005
    Publication date: September 3, 2009
    Applicant: Webasto AG
    Inventors: Michael Poehner, Friedrich Widemann, Steffen Weber, Jan Steffens
  • Publication number: 20050079458
    Abstract: A heater, especially for mobile applications, is provided which includes a burner for burning a liquid fuel, an atomizer nozzle located on the burner for atomizing the liquid fuel into extremely fine fuel droplets, and a fuel supply for feeding the liquid fuel to the atomizer nozzle. A heating means is provided on the atomizer nozzle with which the liquid fuel can be vaporized before and/or during its emergence from the atomizer nozzle.
    Type: Application
    Filed: October 13, 2004
    Publication date: April 14, 2005
    Applicant: Webasto AG
    Inventors: Josef Waronitza, Michael Keppler, Michael Nothen, Jan Steffens