Patents by Inventor Frieder Loercher

Frieder Loercher 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: 9103352
    Abstract: A ventilator for use in air-conditioning and refrigeration technology has a housing of plastic material in a one-part configuration having integrally formed therein an inlet nozzle, cylinder-shaped flow guiding means, outlet guide vanes, and a diffusor. A drive motor is arranged in the housing. An impeller wheel is rotatably supported about a central axis in the housing and driven by the drive motor. A protective screen is connected to the housing. A motor support is connected by the outlet guide vanes to the housing. The impeller wheel has vanes with radially outwardly positioned vane ends, wherein the vane ends are embodied as flow elements (winglets). The flow elements are spaced at a minimal spacing relative to a sidewall of the housing. The drive motor is an external rotor motor that is embodied either as an alternating current asynchronous motor (AC) or an electronically commutated direct current motor (EC).
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: August 11, 2015
    Assignee: Ziehl-Abegg AG
    Inventors: Omar Sadi, Andreas Gross, Lothar Ernemann, Frieder Lörcher
  • Publication number: 20150023791
    Abstract: The axial fan has a motor (1), on the rotor side of which an impeller is fixed, wherein fan blades (24) with a front and a rear edge (26, 27) project from the hub of said impeller. The motor (1) is fixed to a housing (3) by means of a suspension (2). The suspension has a bracing part (4 to 8) made of a flat material, said bracing part connecting the motor (1) to the housing (3) and being arranged in an approximately vertical manner in the flow direction of the air. The aim of the invention is to design the axial fan such that the axial fan has a high overall efficiency and only a low flow resistance. This is achieved in that the bracing part (4 to 8) is provided with at least one recess (7) over a part of the length of the bracing part. The flow resistance due to the bracing part is minimized by means of the recess. The recess reduces the weight of the axial fan.
    Type: Application
    Filed: March 6, 2013
    Publication date: January 22, 2015
    Inventors: Omar Sadi, Andreas Gross, Lothar Ernemann, Frieder Lörcher
  • Publication number: 20120039731
    Abstract: A ventilator for use in air-conditioning and refrigeration technology has a housing of plastic material in a one-part configuration having integrally formed therein an inlet nozzle, cylinder-shaped flow guiding means, outlet guide vanes, and a diffusor. A drive motor is arranged in the housing. An impeller wheel is rotatably supported about a central axis in the housing and driven by the drive motor. A protective screen is connected to the housing. A motor support is connected by the outlet guide vanes to the housing. The impeller wheel has vanes with radially outwardly positioned vane ends, wherein the vane ends are embodied as flow elements (winglets). The flow elements are spaced at a minimal spacing relative to a sidewall of the housing. The drive motor is an external rotor motor that is embodied either as an alternating current asynchronous motor (AC) or an electronically commutated direct current motor (EC).
    Type: Application
    Filed: August 12, 2011
    Publication date: February 16, 2012
    Applicant: ZIEHL-ABEGG AG
    Inventors: Omar Sadi, Andreas Gross, Lothar Ernemann, Frieder Lörcher