Patents Assigned to Purem GmbH
  • Patent number: 11193414
    Abstract: An exhaust system includes a mixer assembly unit (26a) with a mixer body (48a) with an incoming flow side (58a) and with an outflow side (60a) and with a plate shaped carrier element (24a) with a radially outward carrier element body (44a). The mixer body includes a plurality of flow deflection elements (62a) and a holding area (70a). The carrier element includes a counter-holding area (46a) connected in substance to a holding area. The mixer assembly unit is arranged in a junction area of two tubular exhaust gas guide elements (14a, 16a). The exhaust gas guide elements include flange shaped coupling sections. The carrier element body is arranged between the flange shaped coupling sections of the exhaust gas guide elements. A coupling element engages the flange shaped coupling sections and extends over the coupling sections on axial sides oriented facing away from one another radially inwards.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 7, 2021
    Assignee: Purem GmbH
    Inventors: Benjamin Röhr, Roland Schwarz, Peter Gorke, Frank Berkemer, Tadeusz-Jozef Juroszek
  • Patent number: 11168603
    Abstract: A mounting assembly unit includes a mounting element (12) to be fixed by at least one fastening bolt (30). At least one mounting element passage opening (14, 16) is provided in the mounting element (12) for the passage of the at least one fastening bolt (30). A mounting aid unit (18a, 18b) associated with at least one mounting element passage opening (14, 16) is provided at the mounting element (12). The mounting aid unit (18a, 18b) associated with the mounting element passage opening (14, 16) has a mounting aid unit passage opening (22a, 22b), which is positioned aligned with respect to the mounting element passage opening, such that an edge area (28a, 28b of the mounting aid unit (18a, 18b), which edge area surrounds the mounting aid unit passage opening (22a, 22b), is arranged overlapping the mounting element passage opening (14, 16) in some areas.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 9, 2021
    Assignee: Purem GmbH
    Inventor: Véronique Guérin
  • Patent number: 11168604
    Abstract: A housing for an exhaust system of an internal combustion engine of a vehicle, includes at least two housing shell areas (12, 14) enclosing a housing interior (26) and connected to one another in a connection area (16). A first housing shell area (12) of the two housing shell areas has a first meshing formation (36) in the at least one connection area (16) and a second housing shell area (14) of the two housing shell areas has a second meshing formation (40) that meshes or can be caused to positive-lockingly mesh with the first meshing formation (36). The first meshing formation (36) includes at least one meshing opening (38) and the second meshing formation (40) includes at least one meshing strap (42) meshing with the at least one meshing opening (38) in association with the at least one meshing opening (38) of the first meshing formation (36).
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 9, 2021
    Assignee: Purem GmbH
    Inventor: Jan Hänisch
  • Patent number: 11162406
    Abstract: A process for manufacturing an exhaust system, especially for an internal combustion engine of a vehicle, includes providing an exhaust gas-guiding component (26) with a wall (38) made of a metallic material and providing a sensor-mounting connector (22), to be fixed at the wall. The sensor-mounting connector includes a sensor-mounting area (28) to be positioned outside the exhaust gas-guiding component, and a connection area (34), which is to be positioned such that the connection area meshes with the wall. The connection area is pressed against an outer surface (40) of the wall of the exhaust gas-guiding component in a fastening area (39) of the wall, and at the same time rotated about a longitudinal axis (A) of the connector to penetrate into the material forming the wall and a connection in substance is established between the metallic material of the wall and the metallic material of the sensor-mounting connector.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: November 2, 2021
    Assignee: Purem GmbH
    Inventors: Benjamin Röhr, Damir Krajinovic, Thomas Müller, Frank Hempel, Benjamin Deuscher
  • Patent number: 11161080
    Abstract: A mixer for an exhaust system for mixing reactant injected into an exhaust gas stream with exhaust gas includes a mixer body (22). The mixer body includes a reactant passage body area (24) with a reactant passage opening (26), a mixer plate body area (30) adjoining the reactant passage body area (24) on one side in a mixer longitudinal direction (L) and a mixer main body area (36) adjoining the reactant passage body area (24) in the mixer longitudinal direction (L) on another side opposite the one side.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: November 2, 2021
    Assignee: Purem GmbH
    Inventors: Enver Kurpejovic, Krishna Kumar Vempati, Krishna Siva Prasad Reddy Yenugula, Ruben Hass
  • Patent number: 11156142
    Abstract: An exhaust system for an internal combustion engine includes an oxidation catalytic converter unit (12) with a first catalytic converter housing with a first housing axis (A1). An SCR catalytic converter unit (18) has a second catalytic converter housing (20), with a second housing axis (A2). A mixer housing (16) has an upstream connection area (24) adjoining a downstream end (26) of the first catalytic converter housing (14) and has a downstream connection area (28) adjoining an upstream end (30) of the second catalytic converter housing. A mixer (48) is carried in the mixer housing. A reactant release device (56) at the mixer housing releases reactant into a reactant-receiving duct (72) of the mixer. The mixer housing includes a first housing part (36) forming the upstream connection area (24) and a second housing part (38) forming the downstream connection area together with the first housing part.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 26, 2021
    Assignee: Purem GmbH
    Inventors: Enver Kurpejovic, Marc Palinkas, Thomas Wolf, Krishna Siva Prasad Reddy Yenugula, Ruben Hass
  • Patent number: 11125138
    Abstract: A pipe, especially an internal combustion engine, exhaust system, exhaust gas-guiding pipe, includes a connection area (26). The connection area (26) is at an axial pipe end (12) for connecting the pipe (14) extending in a pipe longitudinal axis (A) to another pipe (16) to be pushed into the connection area (26). The connection area (26) includes two slots (18a, 18b). The slots (18a, 18b) include a first slot area (20a, 20b), located closer to the pipe end (12), and a second slot area (22a, 22b), located axially farther away from the pipe end (12) and offset in a circumferential direction in relation to the first slot area (20a, 20b). The second slot areas (22a, 22b) of the two slots (18a, 18b) are offset toward one another or away from one another in the circumferential direction in relation to the first slot areas (20a, 20b).
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: September 21, 2021
    Assignee: Purem GmbH
    Inventor: Joachim Müller