Patents by Inventor Kouichi Machida
Kouichi Machida 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).
-
Patent number: 9784138Abstract: A waste heat power generation device having: an evaporator that recovers waste heat energy to evaporate a working medium; an expansion turbine generator that generates electric power with the working medium being supplied from the evaporator; a condenser that condenses the working medium discharged from the expansion turbine generator; a pump that feeds the working medium condensed in the condenser toward the evaporator; a measuring device that measures the amount of power generated by the expansion turbine generator per unit time; and a control device that controls the driving of the pump based on the measurement result of the measuring device.Type: GrantFiled: May 12, 2015Date of Patent: October 10, 2017Assignee: IHI CORPORATIONInventors: Toshio Takahashi, Hirohisa Wakisaka, Kouichi Machida
-
Patent number: 9677414Abstract: A waste heat power generator (G1, G2) that includes an evaporator (1) to produce steam of a working medium, a power-generating device to generate electric power while expanding the steam, a condenser (3) to condense the steam which has passed through the power-generating device (2), and a pump (5) to send the condensed working medium to the evaporator (1). The waste heat power generator (G1, G2) may further include a valve device (6) to selectively supply a cooling medium used to cool the power-generating device (2) to the power-generating device (2), and a controller (7) to control the valve device (6) based on the temperature of the power-generating device (2).Type: GrantFiled: June 19, 2012Date of Patent: June 13, 2017Assignee: IHI CORPORATIONInventors: Toshio Takahashi, Hirohisa Wakisaka, Kouichi Machida
-
Patent number: 9376938Abstract: The waste heat power generator (G) includes: an evaporator (1) configured to produce steam of a working medium; a power-generating device (2, 2a, 2b) configured to generate electric power while expanding the steam; a condenser (3) configured to condense the steam which has passed through the power-generating device (2, 2a, 2b); and a pump (5) configured to send the condensed working medium to the evaporator (1). A bottom portion (BT) of the power-generating device (2, 2a, 2b) is provided with a discharge port (8) configured to discharge the working medium liquefied inside the power-generating device (2, 2a, 2b), to the outside thereof. A discharge pipe (6) is provided in which one end thereof is connected to the discharge port (8) and the other end thereof is disposed in a channel for the working medium between the condenser (3) and the pump (5).Type: GrantFiled: June 21, 2012Date of Patent: June 28, 2016Assignee: IHI CORPORATIONInventors: Toshio Takahashi, Hirohisa Wakisaka, Kouichi Machida
-
Publication number: 20150247427Abstract: A waste heat power generation device having: an evaporator that recovers waste heat energy to evaporate a working medium; an expansion turbine generator that generates electric power with the working medium being supplied from the evaporator; a condenser that condenses the working medium discharged from the expansion turbine generator; a pump that feeds the working medium condensed in the condenser toward the evaporator; a measuring device that measures the amount of power generated by the expansion turbine generator per unit time; and a control device that controls the driving of the pump based on the measurement result of the measuring device.Type: ApplicationFiled: May 12, 2015Publication date: September 3, 2015Applicant: IHI CorporationInventors: Toshio TAKAHASHI, Hirohisa WAKISAKA, Kouichi MACHIDA
-
Publication number: 20140110945Abstract: The waste heat power generator (G) includes: an evaporator (1) configured to produce steam of a working medium; a power-generating device (2, 2a, 2b) configured to generate electric power while expanding the steam; a condenser (3) configured to condense the steam which has passed through the power-generating device (2, 2a, 2b); and a pump (5) configured to send the condensed working medium to the evaporator (1). A bottom portion (BT) of the power-generating device (2, 2a, 2b) is provided with a discharge port (8) configured to discharge the working medium liquefied inside the power-generating device (2, 2a, 2b), to the outside thereof. A discharge pipe (6) is provided in which one end thereof is connected to the discharge port (8) and the other end thereof is disposed in a channel for the working medium between the condenser (3) and the pump (5).Type: ApplicationFiled: June 21, 2012Publication date: April 24, 2014Applicant: IHI CorporationInventors: Toshio Takahashi, Hirohisa Wakisaka, Kouichi Machida
-
Publication number: 20140110939Abstract: The waste heat power generator (G1, G2) includes: an evaporator (1) configured to produce steam of a working medium; a power-generating device (2) configured to generate electric power while expanding the steam; a condenser (3) configured to condense the steam which has passed through the power-generating device (2); and a pump (5) configured to send the condensed working medium to the evaporator (1). Furthermore, the waste heat power generator (G1, G2) includes: a valve device (6) configured to perform supply or supply stop of a cooling medium used to cool the power-generating device (2), to the power-generating device (2); and a controller (7) configured to control the valve device (6) based on a temperature of the power-generating device (2).Type: ApplicationFiled: June 19, 2012Publication date: April 24, 2014Inventors: Toshio Takahashi, Hirohisa Wakisaka, Kouichi Machida
-
Patent number: 6333955Abstract: To reduce the manufacturing processes of a control rod and shorten the time required for manufacturing a control rod, for the lower part support member 7, the thin parts 11A and 11B are formed in the neighborhood of each of the left and right sides of the window 8. In the left and right sides of the pull-up handle 9, the grooves 17A and 17B are formed respectively. The groove 17B is deeper than the groove 17A. The thin part 11A is fitted into the groove 17A and the thin part 11B is fitted into the groove 17B. The gap formed between the end of the thin part 11B and the bottom of the groove 17B is larger than the gap formed between the end of the thin part 11A and the bottom of the groove 17A. Therefore, the thin part 11A can be simply fitted into the groove 17A.Type: GrantFiled: January 27, 2000Date of Patent: December 25, 2001Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Norio Kawashima, Yasuyuki Gotoh, Yasuhiro Aizawa, Akira Koizumi, Kouichi Machida, Yoshiharu Kikuchi
-
Patent number: 6028906Abstract: The present invention relates to a control rod installed in a boiling water reactor (BWR), and particularly to a control rod using metal. An object of the present invention is to provide a manufacturing method of a control rod for a boiling water reactor, having excellent corrosion resistance in high temperature water and excellent wear resistance at the time of fabrication, and in which the influence of the manufacturing process is slight. In order to achieve the above described object, the present invention provides a manufacturing method of a control rod for a boiling water reactor constructed with sheaths having a U-shaped cross section attached to each end of a tie rod having a cruciform cross section, and rod, plate or oval tube cross section metal hafnium type neutron absorber material contained inside the sheaths, in which an anodized film is provided on a surface of the neutron absorber material as a pre-process of assembly of the neutron absorber material in the structure of the control rod.Type: GrantFiled: August 17, 1998Date of Patent: February 22, 2000Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Norio Kawashima, Yasuyuki Gotoh, Akira Koizumi, Kouichi Machida, Yoshiharu Kikuchi, Takayoshi Yasuda, Yoshitaka Nishino