Patents by Inventor Angfeng Liu

Angfeng Liu 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: 20190002098
    Abstract: The embodiments of the present invention provide a navigator, comprising a gyro flying device and a cover that seals and encloses the gyro flying device. The gyro flying device is connected to the cover by a retaining mechanism. The gyro flying device comprises: a gyrorotor having an axisymmetric structure and rotatable around a central axis thereof; and a driving mechanism coaxially mounted with the gyrorotor to drive the gyrorotor to rotate around the central axis thereof, thereby manipulating rise and fall of the navigator. The retaining mechanism is further disposed to adjust an inclination angle of the gyro flying device, so as to adjust a flying direction of the navigator. The navigator has the advantages of quiet, safe, frictionless, extensive uses, etc.
    Type: Application
    Filed: August 16, 2018
    Publication date: January 3, 2019
    Inventor: Angfeng Liu
  • Patent number: 9650920
    Abstract: Disclosed in the present invention is a method of generating a high-speed gas flow, utilizing a device comprised of a gas pipe, a circulating pipe and a starting and controlling system. The starting and controlling system is comprised of one or a combination of any two or more of a refrigerator, a circulating pump and a heat exchanger. The method comprises the following operation steps: filling the device with a working medium; activating the starting and controlling system; after having been pressurized under liquid state, the working medium absorbing heat and being gasified, entering the gas pipe, and generating the high-speed gas flow. The method may utilize a low quality heat source to convert a low-speed gas flow into a high-speed or extremely high-speed gas flow with relatively high use value. Thus, thermal energy carried by the fluid in the nature may be converted into mechanical energy efficiently.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: May 16, 2017
    Assignee: SHANDONG NATERGY ENERGY TECHNOLOGY CO., LTD.
    Inventor: Angfeng Liu
  • Patent number: 9140242
    Abstract: A temperature differential engine device includes a low-boiling-point medium steam turbine (1), a heat absorber (2), a thermal-insulating type low-temperature countercurrent heat exchanger (3), a circulating pump (4), and a refrigerating system (5) which are interconnected to constitute a closed circulating system filled with low-boiling-point medium fluid. The low-boiling-point medium steam turbine (1) and the heat absorber (2) constitute a low-density-medium heat-absorbing working system, and the circulating pump (4) and the refrigerating system (5) constitute a high-density-medium refrigerating-circulating system. The temperature differential engine device can transfer thermal energy into mechanical energy.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: September 22, 2015
    Assignee: ZIBO NATERGY CHEMICAL INDUSTRY CO., LTD.
    Inventor: Angfeng Liu
  • Publication number: 20140174082
    Abstract: Disclosed in the present invention is a method of generating a high-speed gas flow, utilizing a device comprised of a gas pipe, a circulating pipe and a starting and controlling system. The starting and controlling system is comprised of one or a combination of any two or more of a refrigerator, a circulating pump and a heat exchanger. The method comprises the following operation steps: filling the device with a working medium; activating the starting and controlling system; after having been pressurized under liquid state, the working medium absorbing heat and being gasified, entering the gas pipe, and generating the high-speed gas flow. The method may utilize a low quality heat source to convert a low-speed gas flow into a high-speed or extremely high-speed gas flow with relatively high use value. Thus, thermal energy carried by the fluid in the nature may be converted into mechanical energy efficiently.
    Type: Application
    Filed: May 8, 2012
    Publication date: June 26, 2014
    Applicant: ZIBO NATERGY CHEMICAL INDUSTRY CO., LTD.
    Inventor: Angfeng Liu
  • Publication number: 20120304638
    Abstract: A temperature differential engine device includes a low-boiling-point medium steam turbine (1), a heat absorber (2), a thermal-insulating type low-temperature countercurrent heat exchanger (3), a circulating pump (4), and a refrigerating system (5) which are interconnected to constitute a closed circulating system filled with low-boiling-point medium fluid. The low-boiling-point medium steam turbine (1) and the heat absorber (2) constitute a low-density-medium heat-absorbing working system, and the circulating pump (4) and the refrigerating system (5) constitute a high-density-medium refrigerating-circulating system. The temperature differential engine device can transfer thermal energy into mechanical energy.
    Type: Application
    Filed: February 9, 2011
    Publication date: December 6, 2012
    Applicant: ZIBO NATERGY CHEMICAL INDUSTRY CO., LTD.
    Inventor: Angfeng Liu