Patents by Inventor Naoki Inumaru

Naoki Inumaru 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).

  • Internal circulating fluidized bed type boiler and method of controlling the same
    Patent number: 5138982
    Abstract: An internal recycling type fluidized bed boiler includes a primary fluidized bed incinerating chamber constructed by an air diffusion plate, and an inclined partition wall provided above a portion of the diffusion plate where the mass flow of the air injected from the diffusion plate is greater than that from another portion so as to interfere with the upward flow of the fluidizing air injected from that portion and deflect it towards the portion above the diffusion plate where the mass flow of gas injected is smaller. A thermal energy recovery chamber is formed between the inclined partition wall and a side wall of an incinerator. The inclined partition wall is inclined by 10.degree.-60.degree. relative to the horizontal and is arranged such that the length of its projection in the horizontal direction is 1/6-1/2 of the horizontal length of the bottom of the incinerator bottom.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: August 18, 1992
    Assignee: Ebara Corporation
    Inventors: Takahiro Ohshita, Tsutomu Higo, Shigeru Kosugi, Naoki Inumaru, Hajime Kawaguchi
  • Incineration control apparatus for a fluidized bed boiler
    Patent number: 5052344
    Abstract: A control circuit (B) is adapted the steam pressure at a boiler drum (17) which receives heat from a incineration chamber (3) in a fluidized bed type boiler (A, C) to be correlated to the thermal energy to be recovered and transferred to the boiler drum and to improve a responsiveness for the suppressed control of increase or decrease of the steam pressure caused by variation of a steam load. The velocity of heat recovery is controlled in accordance with the steam pressure in the boiler drum (17) which is detected by a pressure gauge (20b) and a combustibles supply unit (12, 13, 14) for supplying combustibles to the boilers (A, C) is also controlled accordingly.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: October 1, 1991
    Assignee: Ebara Corporation
    Inventors: Shigeru Kosugi, Takahiro Ohshita, Tsutomu Higo, Naoki Inumaru, Hajime Kawaguchi
  • Thermal reactor
    Patent number: 4938170
    Abstract: A thermal reactor which utilizes a fluidizing bed includes a thermal energy recovery chamber having a heat exchanger therein. Fluidizing medium disposed in the fluidizing bed is supplied into the thermal energy recovery chamber due to circulation of the fluidizing medium within the fluidizing bed. The fluidizing medium is passed through the thermal energy recovery chamber such that thermal energy present in the fluidizing medium is transferred to the heat exchanger.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 3, 1990
    Assignee: Ebara Corporation
    Inventors: Takahiro Ohshita, Tsutomu Higo, Shigeru Kosugi, Naoki Inumaru, Hajime Kawaguchi
  • Thermal reactor
    Patent number: 4823740
    Abstract: A thermal reactor of fluidizing bed type includes a thermal recovering arrangement. A part of a fluidizing medium is supplied into the thermal energy recovering arrangement so as to pass therethrough, whereby; thermal energy is recovered by a heat exchanger disposed in the recovering arrangement.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: April 25, 1989
    Assignee: Ebara Corporation
    Inventors: Takahiro Ohshita, Tsutomu Higo, Shigeru Kosugi, Naoki Inumaru, Hajime Kawaguchi