Patents by Inventor Yibing Ruan

Yibing Ruan 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: 20150354876
    Abstract: An automatic two-way expansion valve that resolves the issue where the precision in flow control of existing expansion valves is low. This automatic two-way expansion valve comprises a valve body and the first and second valve cores inside the valve body. There is a small bore concatenate with a big bore inside second valve core. One end of first valve core passes through the big bore and plug into the small bore. There is a flow clearance between the end of first valve core and the sidewall of the small bore. There is a sealing cone on first valve core, which can press against the chamfer rim between the small bore and the big bore. It effectively improves the precision in flow control, by modifying the shape of the end of first valve core and adding the first and the second gaskets.
    Type: Application
    Filed: April 28, 2015
    Publication date: December 10, 2015
    Applicant: WENLING HENGFA AIRCONDITION COMPONENTS CO., LTD
    Inventors: Geng Jin, Yibing Ruan
  • Publication number: 20150276286
    Abstract: An expansion valve relating to the field of air conditioning technology. The present expansion valve comprises a housing, a cylindrical valve body with an inner cavity fixed inside the housing. In the inner cavity, there is a matched set of the first valve core and the second valve core sliding along it. A retaining ring is fixed in the inner cavity between the two valve cores. At both ends of the inner cavity there are spring assemblies driving the valve cores towards the retaining ring. A damping structure is also installed between the first valve core and the second valve core. In this manner, a cushioning effect is provided when the first valve core approaches the second valve core, which lightens the impacts to valve cores and thereby extend the service life of the expansion valve.
    Type: Application
    Filed: September 29, 2013
    Publication date: October 1, 2015
    Applicant: WENLING HENGFA AIRCONDITION COMPONENTS CO., LTD
    Inventors: Geng Jin, Yibing Ruan