Patents by Inventor YAO-CHENG WANG

YAO-CHENG WANG 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).

  • Fan-shaped rotor set with balance positioning apertures
    Patent number: 9140259
    Abstract: A rotor set comprises a pair of engaging rotors disposed in a pump room of a housing rotating oppositely with identical speeds. Each rotor comprises a plurality of lobes, and each lobe has a fan-shaped end with a curved edge. The lobe generates an eccentric force to the rotor during the rotation to reduce mechanical consuming energy and save dynamic energy. Therefore, the rotors can achieve strong eccentric torque and self-vacuum effect with low dynamic energy.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: September 22, 2015
    Inventor: Yao-Cheng Wang
  • ROTOR SET
    Publication number: 20150184653
    Abstract: A rotor set comprises a pair of engaging rotors disposed in a pump room of a housing rotating oppositely with identical speeds. Each rotor comprises a plurality of lobes, and each lobe has a fan-shaped end with a curved edge. The lobe generates an eccentric force to the rotor during the rotation to reduce mechanical consuming energy and save dynamic energy. Therefore, the rotors can achieve strong eccentric torque and self-vacuum effect with low dynamic energy.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Inventor: YAO-CHENG WANG