Patents by Inventor David Tiemann

David Tiemann 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: 11112184
    Abstract: The invention relates to an evaporator (V) comprising an evaporator body (3) surrounded by an evaporator housing (5) having an inlet (1) for supply of liquid into the evaporator housing (5) and an outlet (6) for discharge of vapour generated, wherein the evaporator body (3) comprises a multitude of plates (7) arranged flat one on top of another, wherein there is a liquid distributor (2) for distributing the liquid between the multitude of plates (7) arranged between the inlet (1) and the evaporator body (3), wherein each of the plates (7) comprises, on a first surface, a liquid distributor structure (10) with distributor conduits (20, 21, 22), an evaporator area (11) and a gas collection structure (12). The invention further relates to a corresponding fuel cell arrangement.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 7, 2021
    Assignee: DIEHL AEROSPACE GMBH
    Inventors: David Tiemann, Jochen Schuerer, Gunther Kolb
  • Patent number: 10926239
    Abstract: The invention relates to a fuel processor component for a propylene glycol fuel processor, comprising at least one housing (G) having at least two inlets (E1, E2) and two outlets (A1, A2), wherein there is a multitude of first plates (P1) having a first side (S1) and a second side (S2) and second plates (P2) having a third side (S3) and a fourth side (S4) arranged as a stack in the housing (G), wherein the stacked first and second plates (P1, P2) form at least first cavities (H1) and second cavities (H2), wherein the first inlet (E1) has fluid connection to the first outlet (A1) via first cavities (H1) and the second inlet (E2) has fluid connection to the second outlet (A2) via second cavities (H2). The invention further relates to a propylene glycol fuel processor.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 23, 2021
    Assignee: DIEHL AEROSPACE GMBH
    Inventors: David Tiemann, Jochen Schuerer, Gunther Kolb
  • Patent number: 10717064
    Abstract: An evaporator comprising an evaporator body (3) surrounded by an evaporator housing (5), wherein the evaporator housing (5) is provided with a feed line (1) for feeding a liquid into the evaporator housing (5) and with an outlet (6) for emitting any vapour produced, wherein the evaporator body (3) comprises a multiplicity of plates (7) which are arranged in a planar manner one above another, wherein a void (8) is formed in each case between adjacent plates (7), wherein each of the voids (8) is fluidically connected to the outlet, wherein a liquid distributor is interconnected between the feed line (1) and the evaporator body (3), wherein the liquid distributor branches off from the feed line (1) in the direction of the evaporator body (3) in at least two distributor lines (VR), and wherein each distributor line (VR) is connected to at least one void (8).
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 21, 2020
    Assignee: DIEHL AEROSPACE GMBH
    Inventors: David Tiemann, Karl-Peter Schelhaas
  • Patent number: 10618028
    Abstract: The invention relates to a PrOx reactor (R) comprising a housing that encloses a reaction space and has a first inlet (E1) for supply of a hydrogenous first gas (G1) to a reaction space, a second inlet (E2) for supply of an oxygenous second gas (G2) to the reaction space and an outlet (A) for discharge of a third gas (G3), wherein there is a multitude of conduits (Kv) extending from the second inlet (E2) into the reaction space, each of which comprises at least one opening (O) for supply of the second gas (G2) to the reaction space.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 14, 2020
    Assignee: DIEHL AEROSPACE GMBH
    Inventor: David Tiemann
  • Publication number: 20180236431
    Abstract: The invention relates to a fuel processor component for a propylene glycol fuel processor, comprising at least one housing (G) having at least two inlets (E1, E2) and two outlets (A1, A2), wherein there is a multitude of first plates (P1) having a first side (S1) and a second side (S2) and second plates (P2) having a third side (S3) and a fourth side (S4) arranged as a stack in the housing (G), wherein the stacked first and second plates (P1, P2) form at least first cavities (H1) and second cavities (H2), wherein the first inlet (E1) has fluid connection to the first outlet (A1) via first cavities (H1) and the second inlet (E2) has fluid connection to the second outlet (A2) via second cavities (H2). The invention further relates to a propylene glycol fuel processor.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: DIEHL AEROSPACE GMBH
    Inventors: David TIEMANN, Jochen SCHUERER, Gunther KOLB
  • Publication number: 20180236430
    Abstract: The invention relates to an evaporator comprising an evaporator body (3) surrounded by an evaporator housing (5), wherein the evaporator housing (5) is provided with a feed line (1) for feeding a liquid into the evaporator housing (5) and with an outlet (6) for emitting any vapour produced, wherein the evaporator body (3) comprises a multiplicity of plates (7) which are arranged in a planar manner one above another, wherein a void (8) is formed in each case between adjacent plates (7), wherein each of the voids (8) is fluidically connected to the outlet, wherein a liquid distributor is interconnected between the feed line (1) and the evaporator body (3), wherein the liquid distributor branches off from the feed line (1) in the direction of the evaporator body (3) in at least two distributor lines (VR), and wherein each distributor line (VR) is connected to at least one void (8).
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: DIEHL AEROSPACE GMBH
    Inventors: David TIEMANN, Karl-Peter SCHELHAAS
  • Publication number: 20180238629
    Abstract: The invention relates to an evaporator (V) comprising an evaporator body (3) surrounded by an evaporator housing (5) having an inlet (1) for supply of liquid into the evaporator housing (5) and an outlet (6) for discharge of vapour generated, wherein the evaporator body (3) comprises a multitude of plates (7) arranged flat one on top of another, wherein there is a liquid distributor (2) for distributing the liquid between the multitude of plates (7) arranged between the inlet (1) and the evaporator body (3), wherein each of the plates (7) comprises, on a first surface, a liquid distributor structure (10) with distributor conduits (20, 21, 22), an evaporator area (11) and a gas collection structure (12). The invention further relates to a corresponding fuel cell arrangement.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: DIEHL AEROSPACE GMBH
    Inventors: David TIEMANN, Jochen SCHUERER, Gunther KOLB
  • Publication number: 20180236429
    Abstract: The invention relates to a PrOx reactor (R) comprising a housing that encloses a reaction space and has a first inlet (E1) for supply of a hydrogenous first gas (G1) to a reaction space, a second inlet (E2) for supply of an oxygenous second gas (G2) to the reaction space and an outlet (A) for discharge of a third gas (G3), wherein there is a multitude of conduits (Kv) extending from the second inlet (E2) into the reaction space, each of which comprises at least one opening (O) for supply of the second gas (G2) to the reaction space.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: DIEHL AEROSPACE GMBH
    Inventor: David TIEMANN
  • Patent number: 8167030
    Abstract: A micro-evaporator is disclosed which is easy to manipulate and can be operated problem-free over a large temperature range. The micro-evaporator has micro-evaporator channels in a trapezoidal region, comprising an inlet region opening in the liquid feed chamber with a small diameter, and an outlet region opening into the vapor collecting chamber with a large diameter.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: May 1, 2012
    Inventors: Gunther Kolb, David Tiemann
  • Publication number: 20100136699
    Abstract: A sample plate, portable analysis apparatus and method of analysing sulphur and/or nitrogen compounds in a sample fluid, the method comprising feeding a sample fluid to a sample plate having a sample inlet, a reaction zone, an analysis zone, and at least one separation zone, the sample plate being adapted to allow; (a) a sample fluid to be fed to the sample plate through the inlet to the reaction zone or optionally to a separation zone, which separation zone separates the sample fluid into two or more fractions at least one of which is fed to the reaction zone; (b) a reactant to be fed to the reaction zone; (c) the reaction zone to be maintained under conditions that enable reaction to occur between the reactant and the sample fluid or fraction thereof to produce a product fluid; and (d) transfer of the product fluid to the analysis zone or optionally to a separation zone in which the product fluid is separated into two or more fractions, at least one of which is transferred to the analysis zone.
    Type: Application
    Filed: June 26, 2008
    Publication date: June 3, 2010
    Applicant: BP OIL INTERNATIONAL LIMITED
    Inventors: Klaus-Stefan Drese, Volker Hessel, Christian Hofmann, Tobias Illg, Maria Gabriele Menges, David Tiemann, Athanassios Ziogas
  • Publication number: 20080307825
    Abstract: A micro-evaporator is disclosed which is easy to manipulate and can be operated problem-free over a large temperature range. The micro-evaporator has micro-evaporator channels in a trapezoidal region, comprising an inlet region opening in the liquid feed chamber with a small diameter, and an outlet region opening into the vapor collecting chamber with a large diameter.
    Type: Application
    Filed: April 6, 2006
    Publication date: December 18, 2008
    Inventors: Gunther Kolb, David Tiemann