Patents by Inventor Jürgen Ehrsam

Jürgen Ehrsam 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: 20170343006
    Abstract: An electric centrifugal pump having a motor housing, a pump head, a containment shell, and a rotor assembly consisting of a pump impeller and a permanent magnet rotor, wherein the pump head with the containment shell defines a wet chamber, in which the rotor assembly is arranged rotationally around a longitudinal motor axis, the containment shell with the motor housing defines a dry chamber, in which a wound stator is arranged, and the permanent magnet rotor is arranged within the stator and a hollow-cylindrical region of the containment shell. Particle accumulations in the region between the containment shell and the permanent magnet rotor cannot occur or can only occur to a very minor extent and that the consequences of impurities in the wet chamber are reduced in order to prevent premature wear or a blockage of the centrifugal pump.
    Type: Application
    Filed: May 30, 2017
    Publication date: November 30, 2017
    Applicant: Bühler Motor GmbH
    Inventors: Jürgen Ehrsam, Helmut Kellermann, Christian Zimmerer
  • Publication number: 20170302133
    Abstract: The invention relates to an electric motor, in particular a pump motor, comprising a permanent magnet rotor; a wound stator including a stator laminate package, insulating elements and a stator winding; a motor housing made of plastic material; and a component carrying a rotor bearing, in particular a pump head. The electric motor provides a generic motor with a reliable and economically feasible fastening of the stator to the motor housing, wherein heat expansion cracks are avoided and noise transmissions can be reduced.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Applicant: BÜHLER MOTOR GMBH
    Inventors: Jürgen Ehrsam, Harald Rausch, Maximilian Schupfner, Thomas Häusler, Matthias Krause
  • Publication number: 20170302126
    Abstract: A centrifugal pump motor comprising a permanent magnet rotor, a wound stator that is separated from the permanent magnet rotor by means of a containment shell, a circuit board having a large electronic component electrically connected to it, and a motor housing with a plug connection. The centrifugal pump motor provides a robust design for a generic centrifugal pump motor, so as to prevent damage during installation and operation, as well as additionally ensuring a space-saving and compact arrangement of the electronic components, in order to enable optimal heat dissipation of the electronic components. Furthermore, a simple way of manufacturing is provided.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Applicant: Bühler Motor GmbH
    Inventors: Jürgen Ehrsam, Klaus Weiske, Harald Rausch, Florian Stückl, Jens Weiss
  • Publication number: 20170302124
    Abstract: Pump motor, with a crankcase, a pump head, and a containment shell, whereby the pump head with the containment shell defines a wet chamber and the containment shell with the crankcase defines a dry chamber, a permanent magnet rotor is rotatably mounted in the wet chamber around an axis, a wound stator and a printed circuit board are arranged in the dry chamber and the printed circuit board is located opposite to the containment shell bottom. The pump motor economically provides for a reliable heat dissipation with an increased heat dissipation capacity, from the printed circuit board into the medium which has to be transported, in the case of a pump motor of an appropriate kind.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 19, 2017
    Applicant: Bühler Motor GmbH
    Inventor: Jürgen Ehrsam
  • Publication number: 20170234314
    Abstract: A centrifugal pump for delivering coolant in vehicles and providing a centering of a pump impeller and a dampening of motor vibrations. The centrifugal pump having a pump housing consisting of a pump head, which forms a single part with a suction nozzle, a discharge nozzle, a spoke, and a bearing support, in which a counter bearing is mounted, in which a first region of a shaft is supported, around which a pump impeller is rotatably mounted via a slide bearing secured in the pump impeller, the spoke retaining the bearing support in a central position within the pump head and having a containment shell, which separates a wet chamber from a dry chamber and in which a second region of the shaft is supported. The invention seeks to solve the problem of providing in a generic centrifugal pump.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 17, 2017
    Applicant: Bühler Motor GmbH
    Inventor: Jürgen Ehrsam