Patents by Inventor Shuzo Oda

Shuzo Oda 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: 20070214783
    Abstract: In a steam engine 1, an inner wall face 22a of a connecting tube portion 22 is entirely formed out of a water repellent finish face 22b. Accordingly, when liquid located in a portion close to a heater 30 in a vertical direction extending tube 12 is heated, boiled and liquefied, a liquid level of the liquid in the vertical direction extending tube 12 is pushed down from a top dead center Lu to a bottom dead center Lb. At this time, a quantity of liquid drops attached onto the inner wall face 22a of the connecting tube portion 22 can be reduced as compared with a case in which the entire inner wall face 22a of the connecting tube portion 22 is not formed out of a water repellent finish face 22b.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 20, 2007
    Applicant: DENSO Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Katsuya Komaki
  • Patent number: 7185491
    Abstract: A steam engine has a looped fluid container, in which working fluid is filled. A heating device, a cooling device and an output device are arranged at the fluid container. A lower side valve is provided at a fluid passage of the fluid container between the heating device and the output device. An upper side valve is provided at another fluid passage of the fluid container between the cooling device and the output device. The upper and lower valves are respectively controlled to open and close the respective fluid passages at proper timings, to increase heat efficiency.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: March 6, 2007
    Assignee: Denso Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Yasumasa Hagiwara, Toshiyuki Morishita
  • Publication number: 20070044473
    Abstract: A fluid pump enabling circulation of a working fluid in a Rankine cycle system etc. without utilizing electrical energy and able to be realized at a low cost, provided with a water pump for pumping up working fluid (water) from a steam condenser of the Rankine cycle system and feeding it to a boiler, a fluid vessel, a heater heating and vaporizing working fluid in the vessel, and a cooler cooling and liquefying the steam obtained by vaporization at the heater. Further, the fluid vessel is provided with a vibrator storing expansion energy by the expansion pressure of the steam heated by the heater. When the cooler causes the steam to condense and the pressure falls, the energy stored in the vibrator is used to feed working fluid to the heater 12 where the working fluid is then heated.
    Type: Application
    Filed: August 22, 2006
    Publication date: March 1, 2007
    Applicant: DENSO Corporation
    Inventors: Shinichi Yatsuzuka, Shuzo Oda, Katsuya Komaki, Yasumasa Hagiwara
  • Patent number: 7073331
    Abstract: In a steam engine having a heating device, a cooling device, and an output device, the output device comprises a piston reciprocally moving by a self-excited fluid vibration of a working fluid in a fluid container. The piston is reciprocally moved by the output device for a certain period before starting an operation of the steam engine, so that the working fluid is moved to an inside space of the heating device. Since the working fluid is surely heated and vaporized by the heating device, the fluid vibration is stably started, and as a result, the operation of the steam engine can be smoothly started.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: July 11, 2006
    Assignee: DENSO Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Katsuya Komaki, Yasumasa Hagiwara, Toshiyuki Morishita
  • Patent number: 6976360
    Abstract: A steam engine has a fluid container, a heating device and a cooling device provided at the fluid container for heating and cooling working fluid filled in the fluid container, so that a part of the working fluid is heated and vaporized to move the liquid-phase working fluid in one direction. When the vaporized steam is cooled and liquidized, the pressure of the working fluid in the fluid container is decreased, to thereby move the liquid-phase working fluid in the backward direction. Kinetic energy is thereby generated by using the back and forth movement of the working fluid.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: December 20, 2005
    Assignee: DENSO Corporation
    Inventors: Shinichi Yatsuzuka, Shuzo Oda, Katsuya Komaki
  • Patent number: 6973788
    Abstract: A stem engine has a fluid container, a heating device and a cooling device. The fluid container has an outer pipe having an upper closed end, and an inner pipe provided in the outer pipe and having a fluid inlet port through which the inside of the inner pipe is operatively communicated with the outside of the inner pipe. The inner pipe has a pressure control device at its lower end, and a fluid injection port at its upper end for injecting the working fluid in the inner pipe into a space defined between the inner pipe and the outer pipe, when the pressure in the inner pipe is increased. The working fluid injected into the space between the inner and outer pipes is heated and vaporized by the heating device, so that volumetric expansion of the working fluid takes place to increase fluid pressure in the fluid container. The vaporized steam is then cooled and liquidized by the cooling device and thereby the volumetric contraction takes place, so that the fluid pressure is decreased.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: December 13, 2005
    Assignee: DENSO Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Yasumasa Hagiwara, Toshiyuki Morishita
  • Publication number: 20050268611
    Abstract: A steam engine has a looped fluid container, in which working fluid is filled. A heating device, a cooling device and an output device are arranged at the fluid container. A lower side valve is provided at a fluid passage of the fluid container between the heating device and the output device. An upper side valve is provided at another fluid passage of the fluid container between the cooling device and the output device. The upper and lower valves are respectively controlled to open and close the respective fluid passages at proper timings, to increase heat efficiency.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 8, 2005
    Applicant: DENSO Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Yasumasa Hagiwara, Toshiyuki Morishita
  • Publication number: 20050257524
    Abstract: A steam engine has a pipe shaped fluid container, a heating and cooling devices respectively provided at a heating and cooling portions of the fluid container, and an output device connected to the fluid container, so that the output device is operated by the fluid pressure change in the fluid container, to generate an electric power. In such a steam engine, an inner radius “r1” of the cooling portion is made to almost equal to a depth “?1” of thermal penetration, which is calculated by the following formula (1); ? 1 = 2 ? a 1 ? ( 1 ) wherein, “a1” is a heat diffusivity of the working fluid at its low pressure, and “?” is an angular frequency of the movement of the working fluid.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 24, 2005
    Applicant: DENSO Corporation
    Inventors: Shinichi Yatsuzuka, Shuzo Oda, Yasumasa Hagiwara, Toshiyuki Morishita, Katsuya Komaki
  • Publication number: 20050257525
    Abstract: A steam engine has a pipe shaped fluid container, a heating and cooling devices respectively provided at a heating and cooling portions of the fluid container, and an output device connected to the fluid container, so that the output device is operated by the fluid pressure change in the fluid container, to generate an electric power. In such a steam engine, the fluid pressure in the fluid container is adjusted such that the fluid pressure does not exceed a saturated vapor pressure at the operating temperature. As a result, unnecessary condensation and liquefaction of the steam due to the increased pressure higher than the saturated vapor pressure can be prevented, to improve performance of the steam engine.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 24, 2005
    Applicant: DENSO Corporation
    Inventors: Katsuya Komaki, Shuzo Oda, Takeshi Oochi, Shinichi Yatsuzuka
  • Publication number: 20050257526
    Abstract: In a steam engine having a heating device, a cooling device, and an output device, the output device comprises a piston reciprocally moving by a self-excited fluid vibration of a working fluid in a fluid container. The piston is reciprocally moved by the output device for a certain period before starting an operation of the steam engine, so that the working fluid is moved to an inside space of the heating device. Since the working fluid is surely heated and vaporized by the heating device, the fluid vibration is stably started, and as a result, the operation of the steam engine can be smoothly started.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 24, 2005
    Applicant: DENSO Corporation
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Katsuya Komaki, Yasumasa Hagiwara, Toshiyuki Morishita
  • Publication number: 20050193735
    Abstract: A liquid pump for circulating working fluid (water) in a Rankine cycle comprises a U-shaped fluid vessel having a bending pipe portion and a pair of straight pipe portions, wherein a heating device and a cooling device are provided at one of the straight pipe portions for heating and cooling the water in the fluid vessel. The liquid pump further has a discharge pipe portion and an inlet pipe portion, and check valves are respectively provided in the discharge and inlet pipe portions. The water is vaporized by a heating operation of the heating device to increase pressure of the working fluid in the pump, so that the working fluid is discharged. The vaporized working fluid is then cooled down by the cooling device to decrease the pressure of the working fluid in the pump, so that the working fluid is sucked into the pump.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 8, 2005
    Inventors: Shinichi Yatsuzuka, Shuzo Oda, Katsuya Komaki, Yasumasa Hagiwara
  • Publication number: 20050193736
    Abstract: A steam engine has a fluid container, a heating device and a cooling device provided at the fluid container for heating and cooling working fluid filled in the fluid container, so that a part of the working fluid is heated and vaporized to move the liquid-phase working fluid in one direction. When the vaporized steam is cooled and liquidized, the pressure of the working fluid in the fluid container is decreased, to thereby move the liquid-phase working fluid in the backward direction. Kinetic energy is thereby generated by using the back and forth movement of the working fluid.
    Type: Application
    Filed: March 1, 2005
    Publication date: September 8, 2005
    Inventors: Shinichi Yatsuzuka, Shuzo Oda, Katsuya Komaki
  • Publication number: 20050193737
    Abstract: A stem engine has a fluid container, a heating device and a cooling device. The fluid container has an outer pipe having an upper closed end, and an inner pipe provided in the outer pipe and having a fluid inlet port through which the inside of the inner pipe is operatively communicated with the outside of the inner pipe. The inner pipe has a pressure control device at its lower end, and a fluid injection port at its upper end for injecting the working fluid in the inner pipe into a space defined between the inner pipe and the outer pipe, when the pressure in the inner pipe is increased. The working fluid injected into the space between the inner and outer pipes is heated and vaporized by the heating device, so that volumetric expansion of the working fluid takes place to increase fluid pressure in the fluid container. The vaporized steam is then cooled and liquidized by the cooling device and thereby the volumetric contraction takes place, so that the fluid pressure is decreased.
    Type: Application
    Filed: March 4, 2005
    Publication date: September 8, 2005
    Inventors: Shuzo Oda, Shinichi Yatsuzuka, Yasumasa Hagiwara, Toshiyuki Morishita
  • Patent number: 6905783
    Abstract: Steel sheet for porcelain enameling having excellent workability yet capable of providing an enamel layer having excellent adhesion with the steel sheet on direct-on enameling once and still free of black specks defects, a method for producing the same, as well as a porcelain enamel product and the method for producing the same are provided, in which low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet is used. A steel sheet for porcelain enameling is produced by applying Ni—Mo alloy plating to the low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet having specified components and composition ratio, and after performing heat treatment thereto to control the content of Ni, Mo, and Fe that are present on the surface of the steel sheet in a predetermined range, porcelain enamel is applied and fired.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: June 14, 2005
    Assignees: Ferro Enamels (Japan) Limited, Toyo Kohan Co., Ltd.
    Inventors: Fumiaki Sato, Toshihira Hamada, Shuzo Oda, Yoshihiro Jono, Takahiro Hayashida, Junichi Fujimoto, Masao Komai
  • Patent number: 6805975
    Abstract: Steel sheet for porcelain enameling capable of realizing excellent enamel adhesion with the steel sheet by direct-on enameling once is provided by using a Ti-added steel sheet; there are also a method for producing the same, as well as a porcelain enamel product and the method for producing the same. A steel sheet for porcelain enameling is produced by providing a Ni—Mo alloy plating film on a Ti-added steel sheet containing 0.01% by weight (wherein, % represents “% by weight” hereinafter) or less of C, 0.5% or less of Mn, 0.04% or less of P, 0.04% or less of S, 0.01 to 0.50% of Ti, and balance Fe accompanied by unavoidable impurities, and by then performing heat treatment thereto to control the content of Ni, Mo, and Fe present in the surface of the steel sheet in a predetermined range, porcelain enamel is applied once and fired.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: October 19, 2004
    Assignees: Ferro Enamels (Japan) Limited, Toyo Kohan Co., Ltd.
    Inventors: Fumiaki Sato, Toshihira Hamada, Shuzo Oda, Yoshihiro Jono, Takahiro Hayashida, Junichi Fujimoto, Masao Komai
  • Publication number: 20030173002
    Abstract: Steel sheet for porcelain enameling having excellent workability yet capable of providing an enamel layer having excellent adhesion with the steel sheet on direct-on enameling once and still free of black specks defects, a method for producing the same, as well as a porcelain enamel product and the method for producing the same are provided, in which low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet is used. A steel sheet for porcelain enameling is produced by applying Ni—Mo alloy plating to the low carbon Al-killed steel sheet, high oxygen steel sheet, Ti-added steel sheet, Nb-added steel sheet, Ti—Nb-added steel sheet or B-added steel sheet having specified components and composition ratio, and after performing heat treatment thereto to control the content of Ni, Mo, and Fe that are present on the surface of the steel sheet in a predetermined range, porcelain enamel is applied and fired.
    Type: Application
    Filed: February 14, 2003
    Publication date: September 18, 2003
    Inventors: Fumiaki Sato, Toshihira Hamada, Shuzo Oda, Yoshihiro Jono, Takahiro Hayashida, Junichi Fujimoto, Masao Komai
  • Publication number: 20030162052
    Abstract: Steel sheet for porcelain enameling capable of realizing excellent enamel adhesion with the steel sheet by direct-on enameling once is provided by using a Ti-added steel sheet; there are also a method for producing the same, as well as a porcelain enamel product and the method for producing the same. A steel sheet for porcelain enameling is produced by providing a Ni—Mo alloy plating film on a Ti-added steel sheet containing 0.01% by weight (wherein, % represents “% by weight” hereinafter) or less of C, 0.5% or less of Mn, 0.04% or less of P, 0.04% or less of S, 0.01 to 0.50% of Ti, and balance Fe accompanied by unavoidable impurities, and by then performing heat treatment thereto to control the content of Ni, Mo, and Fe present in the surface of the steel sheet in a predetermined range, porcelain enamel is applied once and fired.
    Type: Application
    Filed: January 16, 2003
    Publication date: August 28, 2003
    Inventors: Fumiaki Sato, Toshihira Hamada, Shuzo Oda, Yoshihiro Jono, Takahiro Hayashida, Junichi Fujimoto, Masao Komai