Patents by Inventor Yoosyun Horibe

Yoosyun Horibe 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).

  • Condenser for a steam turbine and a method of operating such a condenser
    Patent number: 5423377
    Abstract: In the operation of a main steam condenser of a steam turbine driven by a boiler and having a gland steam condenser, the gland steam condensate is normally fed from the gland steam condenser into the main condenser condensate. To avoid contamination of the main condenser condensate by oxygen-rich water, for at least part of the start-up period of the turbine, the gland steam condensate and other drain accumulating in the condenser is prevented from entering the main condenser condensate which is to be fed to the boiler. The gland steam condensate is fed to said main condenser and stored in a reservoir separate from the hot well thereof, to undergo de-aeration before being fed into the main condenser condensate.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: June 13, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Kazuya Iwata, Yoosyun Horibe, Yoshio Sumiya, Ryoichi Ohkura