Patents by Inventor Zhengfu Fan

Zhengfu Fan 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: 20240410458
    Abstract: The present application discloses an internal engagement transmission mechanism, comprising an outer wheel and an inner wheel. The outer wheel is provided with outer wheel inner teeth, and comprises an outer wheel inner tooth crest and an outer wheel inner tooth waist. The inner wheel is provided with inner wheel outer teeth, and comprises an inner wheel outer tooth crest and an inner wheel outer tooth waist. The inner wheel and the outer wheel form an internal engagement transmission through the inner wheel outer tooth waist and the outer wheel inner tooth waist. The outer wheel inner tooth waist and the inner wheel outer tooth waist are curved surfaces which have the same shape and are coincident. The inner wheel outer tooth waist and the outer wheel inner tooth waist form surface contact engagement, and the contact area between the inner wheel outer tooth waist and the outer wheel inner tooth waist gradually increases to a maximum value as the inner wheel rotates, and then gradually decreases.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 12, 2024
    Inventors: Zhengfu Fan, Yuhao Chen
  • Patent number: 11788606
    Abstract: Disclosed in the present invention is a transmission mechanism, comprising an outer wheel, an inner wheel, an eccentric shaft, a first flange body, a rotating shaft and a planetary gear device. The inner wheel is provided in the outer wheel and is engaged with the outer wheel. The eccentric shaft can rotate around a central axis; an eccentric portion, eccentric shaft outer teeth and a first support portion are provided on the periphery of the eccentric shaft; and the inner wheel is provided around the eccentric portion. The first flange body and the inner wheel are provided side by side, and the first flange body is provided around the first support portion. The rotating shaft has rotating shaft external teeth. The planetary gear device is supported by the first flange body, and a first row of planetary teeth engaged with the rotating shaft outer teeth and a second row of planetary teeth engaged with the eccentric shaft outer teeth are provided at the periphery of the planetary gear device.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: October 17, 2023
    Assignee: Ningbo HS-Power Drive Technology Co. Ltd
    Inventors: Zhengfu Fan, Yuhao Chen
  • Publication number: 20230128685
    Abstract: Disclosed in the present invention is a transmission mechanism, comprising an outer wheel, an inner wheel, an eccentric shaft, a first flange body, a rotating shaft and a planetary gear device. The inner wheel is provided in the outer wheel and is engaged with the outer wheel. The eccentric shaft can rotate around a central axis; an eccentric portion, eccentric shaft outer teeth and a first support portion are provided on the periphery of the eccentric shaft; and the inner wheel is provided around the eccentric portion. The first flange body and the inner wheel are provided side by side, and the first flange body is provided around the first support portion. The rotating shaft has rotating shaft external teeth. The planetary gear device is supported by the first flange body, and a first row of planetary teeth engaged with the rotating shaft outer teeth and a second row of planetary teeth engaged with the eccentric shaft outer teeth are provided at the periphery of the planetary gear device.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 27, 2023
    Inventors: Zhengfu Fan, Yuhao Chen
  • Publication number: 20180291996
    Abstract: The present invention provides an inner meshing transmission mechanism, which comprises an outer wheel, the outer wheel being provided with a first number of circular arc teeth on its inner edge, and said first number of circular arc teeth being arranged around the inner edge of the outer wheel; an inner wheel, the inner wheel being provided with a second number of teeth on its outer rim, said second number of teeth being arranged around the outer rim of the inner wheel, wherein m>n; an eccentric rotation device configured to enable said inner wheel to be eccentrically placed inside of outer wheel; wherein one of said outer wheel, said inner wheel and said eccentric rotation device is connected to an input power, while another one of them being connected to an output device so that power is transmitted through engagement between said outer wheel and said inner wheel; and wherein the toothed profile of said inner wheel is designed such that at any time when said inner wheel is engaging with said outer wheel
    Type: Application
    Filed: October 11, 2016
    Publication date: October 11, 2018
    Inventors: Zhengfu Fan, Yuhao Chen
  • Publication number: 20100098573
    Abstract: The present disclosure relates to the sintering cycle method and apparatus of a kind of box-type sintering machine, which is peculiarly applicable to the production of lightweight aggregate using fly ash or industrial waste by sintering process. This apparatus includes four conveying systems, ignition station #1, ignition station #2, one tilt discharger, and one crusher; the box-type sintering stacking line A and B are straight and parallel, sharing one coarse dust collector; each box-type sintering stacking line is equipped with overhead workstation gantry crane rails and cranes, and each crane comprises two parts, i.e., hoist system and single rail trolley system; each box-type sintering stacking line has multiple sinter boxes; each sinter box has an air chamber below, under which there is the air chamber pipeline connected to the coarse dust collector.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 22, 2010
    Applicant: Beijing STICH Science and Technology Company Ltd.
    Inventor: Zhengfu Fan