Patents Assigned to Mahle International GmbH
  • Patent number: 11728703
    Abstract: An electric machine includes a rotor, rotatable about an axis of rotation defining an axial direction, and a stator having stator windings, a coolant distribution chamber and a coolant collection chamber arranged axially at a distance thereto. The coolant distribution chamber fluidically communicates with the coolant collection chamber with a cooling channel through which a coolant can flow. The cooling channel and the stator winding are embedded in a plastic mass made of a plastic for thermal coupling to the coolant. The stator has stator teeth extending along the axial direction and spaced apart from one another along a circumferential direction and carrying the stator windings. The plastic mass is arranged together with the cooling channel and the stator winding in an intermediate space formed between two stator teeth arranged adjacent in the circumferential direction and sections of cooling channel are configured as a tube body within the intermediate space.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 15, 2023
    Assignee: Mahle International GmbH
    Inventors: Philip Grabherr, Mirko Hoerz, Andrej Licen, Stojan Markic, Aleks Medvescek, Peter Sever, Josef Sonntag, Hans-Ulrich Steurer
  • Publication number: 20230251047
    Abstract: A heat exchanger module with a first block of a first heat exchanger, further with a second block of a second heat exchanger, and further with an expansion valve, wherein the first block, the second block and the expansion valve are designed as an interconnected module.
    Type: Application
    Filed: February 2, 2023
    Publication date: August 10, 2023
    Applicant: MAHLE International GmbH
    Inventors: Timo FELDKELLER, Andreas Draenkow
  • Patent number: 11708010
    Abstract: A method for operating a thermo-management module for a motor vehicle, wherein the module includes switching over a control unit between a first operating mode and at least a second operating mode, passing on in the first operating mode, control commands received from the vehicle field bus by the control electronics for actuation of the respective functional component directly to the component field bus, in at least one second operating mode, processing control commands received from the vehicle field us by the control electronics, so that the actuation of the functional components is carried out in a self-sufficient manner by the control unit. In addition, thermo-management module includes a component carrier, electrically controllable functional components, and an electric control unit for controlling the functional components.
    Type: Grant
    Filed: March 26, 2022
    Date of Patent: July 25, 2023
    Assignee: Mahle International GmbH
    Inventors: Kristian Haase, Holger Ulrich
  • Patent number: 11692502
    Abstract: In an engine ignition method according to the present invention, an ignition coil and an exciter coil are provided in a magneto generator driven by an engine. After charging an ignition capacitor using an output voltage of the exciter coil, the ignition capacitor is discharged through a primary coil of the ignition coil at an ignition timing of the engine, whereby a high voltage induced in a secondary coil of the ignition coil is applied to an ignition plug and a first spark discharge is generated in the ignition plug, and a voltage induced in the secondary coil of the ignition coil accompanied with rotation of the magneto rotor is applied to the ignition plug in a state that insulation across discharge gaps of the ignition plug is broken down due to the first spark discharge, whereby a second spark discharge is produced in the ignition plug.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 4, 2023
    Assignee: MAHLE INTERNATIONAL GMBH
    Inventors: Takuma Ayuzawa, Masayuki Sugiyama, Naoya Takamura
  • Patent number: 11668530
    Abstract: Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: June 6, 2023
    Assignees: MAHLE INTERNATIONAL GMBH, MAHLE JAPAN LTD.
    Inventors: Hirotaka Kobayashi, Yasuaki Suzuki, Masahiro Ariyama
  • Patent number: 11644244
    Abstract: A heat exchanger has an upper manifold with a first curved section; a lower manifold spaced from and extending parallel to the upper manifold and having a second curved section; a plurality of refrigerant tubes, and a plurality of corrugated fins. Each corrugated fin is formed by a strip having radiused portions alternating with planar portions, and the radiused portions are in contact with the respective adjacent refrigerant tubes. Each of the fins has a curve-inner edge and a curve outer edge and at least one edge of the curve-inner edge and the curve outer edge of at least one fin has a recessed portion in the planar portions that is recessed inward toward a center of the core.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: May 9, 2023
    Assignee: MAHLE International GmbH
    Inventors: John Rosen, Scott Kent
  • Publication number: 20230076020
    Abstract: An air conditioning system of a motor vehicle, having a housing with at least two independent air ducts formed therein, which are arranged separately from each other by at least one partition wall in the housing. A cooling heat exchanger is arranged in the housing such that it is flowed through by air, which can flow into the at least two independent air ducts. A heating heat exchanger is arranged in the housing such that it protrudes into the at least two independent air ducts and is flowed through by air of the at least two independent air ducts. The heating heat exchanger being an electrically operable heat exchanger, which is formed with several independently heated heat exchanger areas, so that the air flowing through an heat exchanger area is independently heatable and each independent air duct is provided at least one heat exchanger area.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 9, 2023
    Applicant: MAHLE International GmbH
    Inventors: Holger LAUX, Walter Wolf, Marc Fraas
  • Patent number: 11597253
    Abstract: A blower having a motor mount, in particular for a blower of an air-conditioning system of a motor vehicle, the blower having a blower housing, in which an electric motor is held with the aid of the motor mount, an impeller being furthermore drivably disposed in the blower housing on a shaft of the electric motor, the impeller having a side oriented toward the electric motor, and the motor mount having a first surface oriented toward the impeller, a gap being formed between the impeller and the first surface, the first surface having a plurality of first projecting elements, which protect on the outer circumference of the surface in the direction of the impeller.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: March 7, 2023
    Assignee: MAHLE International GmbH
    Inventor: Norman Schaake
  • Publication number: 20230052183
    Abstract: A heat exchanger including a tube/rib block made up of tubes and ribs, the tubes forming fluid channels for conducting a first fluid, in particular a refrigerant, and the ribs arranged between the tubes forming a second fluid channel for conducting a second fluid, such as, in particular, air, which flows around the tubes, a collector being arranged at at least one end of the tube/rib block, which communicates with the fluid channels of the tubes, the at least one collector being provided with a plate-type design and including at least one base plate and a cover plate, which are stacked and soldered in a sealed manner, a spacer for spacing the base plate at a distance from the cover plate and for distributing the first fluid in the collector being provided.
    Type: Application
    Filed: August 9, 2022
    Publication date: February 16, 2023
    Applicant: MAHLE International GmbH
    Inventors: Benjamin NOTHDURFT, Uwe FOERSTER, Martin SIEVERS, Gottfried DUERR, Patrick WALZ, Nikolaj BITTNER
  • Publication number: 20230050237
    Abstract: A plate-type heat exchanger, in which plates are stacked on top of each other as a stack and connected to each other in a sealed manner, fluid channels being formed between adjacent plates in each case, the stack of plates being divided into a first stack region and a second stack region, the first stack region forming an evaporator having first fluid channels and second fluid channels, and the second stack region forming an internal heat exchanger having third fluid channels and fourth fluid channels.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 16, 2023
    Applicant: MAHLE International GmbH
    Inventor: Timo FELDKELLER
  • Patent number: 11581764
    Abstract: A rotor assembly for a permanent magnet motor includes a rotor stack of laminated ferromagnetic layers and partial end plates at opposite axial ends of the rotor stack wherein each axial end of the rotor bears two partial end plates, each of which covers a partial circle and does not axially overlap with the other one of the partial end plates at the same axial end. The two partial end plates of each axial end are formed by a first axial end plate shaped as a first partial ring disc and a second partial end plate shaped as a second partial ring disc that are made of stamped metal and that are of different mass.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: February 14, 2023
    Assignee: MAHLE International GmbH
    Inventors: Brett Bowman, Jonathan Hammond
  • Patent number: 11578924
    Abstract: A heat exchanger (1) for thermally coupling a first fluid to a second fluid so as to transfer heat and in a fluidically separate manner includes a securing assembly (8) of two cover parts (9) and at least one, preferably a plurality of guide parts (11), through which duct tubes (5) of the heat exchanger (1) pass. The duct tubes (5) extend inside a housing tube (2) along the longitudinal axis of the housing tube (2). The first fluid passes through the housing tube (2) outside of the duct tubes (5), and the second fluid passes through the duct tubes (5). The duct tubes (5) may have circular or flattened cross-sections.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: February 14, 2023
    Assignee: MAHLE International GmbH
    Inventors: Andrzej Krupa, Scott Edward Kent, Anna Stelmasinska, Szymon Walczak
  • 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
  • Publication number: 20230010708
    Abstract: A method for producing a housing of an air conditioner, in which at least a part of the housing is produced as a plastic part by means of an injection molding process by injecting a plastic into a mold cavity of an injection molding tool, wherein a damping element is placed in the injection mold prior to injection of the plastic into the injection mold so that the damping element establishes a bond with the plastic during injection of the plastic into the injection mold and becomes a component of the injection-molded plastic part.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 12, 2023
    Applicant: MAHLE International GmbH
    Inventors: Jesus MARTINEZ PODEROS, Jochen SCHAUDT, Bernd BARTENBACH, Franz SPOERL, Ralf BERNDT, Bernd KROLL
  • Patent number: 11549606
    Abstract: In a thermal fluid system, a control valve includes a flow valve and a solenoid pilot valve. The flow valve has an inlet and an outlet; a control chamber for receiving a pilot pressure; and a valve member operable by the pilot pressure to selectively open and close a fluid path from the inlet to the outlet. The pilot pressure acts in a closing direction of the flow valve. The pilot valve provides the pilot pressure to the control chamber and is a 3/2 way valve with a first port in fluid communication with the control chamber, a second port to be connected to a pressure source, and a third port. The pilot valve has a first position connecting the first port with the second port and a second position connecting the first port with the third port.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: January 10, 2023
    Assignee: MAHLE International GmbH
    Inventors: Sourav Chowdhury, Daniel Rupp, Mark J. Zima, Brian Cripps, Kevin Curtin
  • Patent number: 11552502
    Abstract: An induction charging device for an electrically operated motor vehicle includes a charging assembly having a charging coil, and a temperature-control assembly having a fluid pipe. The charging coil can be inductively coupled to a primary coil, such that a battery in the motor vehicle can be inductively charged. The charging assembly has a ferrite plate for directing the electromagnetic alternating field, which is established between the charging coil and the fluid pipe, such that waste heat from the ferrite plate and the charging coil can be transmitted to the fluid in the fluid pipe. The fluid pipe is formed by a shell-type metal shielding plate for shielding electromagnetic field emissions and a shell-type lower shell heat-conductingly in contact with the ferrite plate. The metal shielding plate and the lower shell are secured on one another in a fluid-tight manner and spaced apart from one another with a stiffening insert.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 10, 2023
    Assignee: MAHLE International GmbH
    Inventor: Christopher Laemmle
  • Patent number: 11529841
    Abstract: A HVAC system for a motor vehicle having a housing, wherein the housing has an air inlet for admitting air and a cold air path in which cold air flows is provided in the housing and a warm air path in which warm air flows is provided in the housing, wherein the warm air path and the cold air path open into a mixing chamber, wherein a mixing flap is provided for controlling the proportion of cold air flowing into the mixing chamber and the proportion of warm air flowing into the mixing chamber, wherein the mixing flap is arranged rotatable about an axis and is driven by a flap actuator which has a drive shaft, wherein a gear with a nonlinear translation characteristic is provided between the mixing flap and the drive shaft.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 20, 2022
    Assignee: MAHLE International GmbH
    Inventor: Holger Laux
  • Patent number: 11506152
    Abstract: A carbon canister includes a main body with a chamber containing activated carbon, an end cover mounted to the main body, the end cover and the main body enclosing and forming a cavity, the end cover having a desorption port for connecting with and engine, a Venturi tube mounted in the cavity and including an inlet segment, and a throat and a back suction tube. An inner diameter of the throat is smaller than an inner diameter of the inlet segment. The inlet segment communicates with the activated carbon containing chamber, the throat communicates with the desorption port, the back suction tube connects to the throat, and the back suction tube extends to the bottom of the cavity. Thereby, a negative pressure is created, the fuel collected within the carbon canister is desorbed to the engine so that the fuel utilization is improved, and the exhaust emission is reduced.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: November 22, 2022
    Assignee: Mahle International GmbH
    Inventors: Zonghai Gong, Yongsheng Li, Hui Zhang
  • Patent number: 11495426
    Abstract: An electromagnetic switch for a starting device of an internal combustion engine may include a coil carrier, a coil winding, and a piston. The coil carrier may have a carrier wall which encloses a cavity. The coil winding may have a coil wire wound on a side of the carrier wall facing away from the cavity which provides a magnetic field within the cavity. The piston may be axially adjustable in the cavity. The piston may be disposed in a passive position and may be adjusted axially in a direction of a core. In the passive position, the piston and the core may define an axial gap therebetween in the cavity. The coil wire may have a first winding section and a second winding section wound in opposing directions. At least one winding of the second winding section may axially overlap the axial gap.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: November 8, 2022
    Assignee: Mahle International GmbH
    Inventor: Dejan Manfreda
  • Patent number: 11486296
    Abstract: An exhaust gas turbocharger assembly includes a turbocharger, an actuator, and a bolted connection for releasably securing the actuator housing on a housing flange of the turbocharger housing. The bolted connection includes a through opening, an aperture bounded at the circumference by an internal thread made of a metal, and a fit bolt with a bolt body which merges axially into a bolt head. The bolt body has a first axial body section with an external thread formed in a manner complementary to the internal thread of the aperture, and a second axial body section arranged axially between the bolt head and the first body section. The fit bolt engages through the through opening of the actuator housing in the internal thread of the aperture with the external thread to clamp the actuator housing between the housing flange of the turbocharger housing and the bolt head of the fit bolt.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: November 1, 2022
    Assignee: Mahle International GmbH
    Inventor: Peer Niekamp