Patents by Inventor Yuh-Yuan Yo

Yuh-Yuan Yo 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).

  • Direct heat recovery absorption refrigeration system
    Patent number: 5293759
    Abstract: An absorption refrigeration system uses a solution and a refrigerant contained in the solution as working mediums.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: March 15, 1994
    Assignee: Industrial Technology research Institute
    Inventors: Chung-Chiang Lee, Hung-Yao Chao, Peggy Lin, Chi-Chen Chung, Yuh-Yuan Yo
  • Automatic purger for absorption heat pump
    Patent number: 5065594
    Abstract: An automatic purger for an absorption heat pump has a generator, a condensor, an evaporator and an absorber. The purger includes an eductor connected to the absorber, a purging chamber connected to the absorber and mounting therein a nozzle, a heat-dissipating tube connected between the educator and the nozzle, a storage tank communicating with the absorber and mounting thereto a solution level controller, a diffuser for increasing the pressure of the absorbing agent solution ejected from the nozzle into the storage tank, and a vacuum pump connected to the storage tank. Due to a low pressure zone formed around the exit of the nozzle in the purging chamber, non-condensable gas existing in the absorber will be extracted into the purging chamber and then be carried into the storage tank by the absorbing agent solution ejected from the nozzle.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: November 19, 1991
    Assignee: Industrial Technology Research Institute
    Inventor: Yuh-Yuan Yo