Patents by Inventor Shinobu Kokubun

Shinobu Kokubun 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: 8171631
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 8, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki, Tomohiro Shirahata
  • Patent number: 8166654
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 1, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki, Tomohiro Shirahata
  • Patent number: 8166655
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 1, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki, Tomohiro Shirahata
  • Patent number: 8006378
    Abstract: A positioning system used in assembling a scroll-type fluid machine includes a radial thrust mechanism driving motor for turning a radial thrust mechanism in synchronism with rotational phase of a rotary shaft, a vertical pressing mechanism for producing a vertical pressing force for pressing a stationary scroll against a frame, a displacement sensor for measuring horizontal displacements of a stationary scroll retaining mechanism from at least two directions, a first processor for calculating an orbital path of the stationary scroll from obtained measurement values, a second processor for evaluating stability of the orbital path of the stationary scroll based on vertical pressing force data and the orbital path of the stationary scroll, and a third processor for calculating a fixing point on which the stationary scroll is to be fixedly centered with respect to the frame when the orbital path of the stationary scroll is judged to be stable.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki, Tomohiro Shirahata
  • Publication number: 20110197424
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Application
    Filed: April 4, 2011
    Publication date: August 18, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shinobu KOKUBUN, Toshiaki Iwasaki, Tomohiro Shirahata
  • Publication number: 20110197425
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Application
    Filed: April 4, 2011
    Publication date: August 18, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shinobu KOKUBUN, Toshiaki Iwasaki, Tomohiro Shirahata
  • Publication number: 20110197442
    Abstract: A positioning system used in assembling a scroll- type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Application
    Filed: April 4, 2011
    Publication date: August 18, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shinobu KOKUBUN, Toshiaki Iwasaki, Tomohiro Shirahata
  • Patent number: 7946027
    Abstract: An apparatus for correcting the shape of an inner surface of a stator includes a deviation sensor for measuring the shape of the inner surface of the stator fixed inside an inner surface of a housing of a rotating electric machine, a personal computer for calculating a direction of deformation and the amount of deformation of the shape of the stator inner surface based on the measured shape of the stator inner surface as well as a direction of heating and the amount of heat to be input when heating an outer side surface of the housing based on the calculated direction and amount of deformation of the shape of the stator inner surface, and a gas burner for heating the outer side surface of the housing based on the direction of heating and the amount of heat to be input calculated by the personal computer.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 24, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki
  • Publication number: 20080224549
    Abstract: An apparatus for correcting the shape of an inner surface of a stator includes a deviation sensor for measuring the shape of the inner surface of the stator fixed inside an inner surface of a housing of a rotating electric machine, a personal computer for calculating a direction of deformation and the amount of deformation of the shape of the stator inner surface based on the measured shape of the stator inner surface as well as a direction of heating and the amount of heat to be input when heating an outer side surface of the housing based on the calculated direction and amount of deformation of the shape of the stator inner surface, and a gas burner for heating the outer side surface of the housing based on the direction of heating and the amount of heat to be input calculated by the personal computer.
    Type: Application
    Filed: February 20, 2008
    Publication date: September 18, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki
  • Publication number: 20070033801
    Abstract: A positioning system used in assembling a scroll-type fluid machine exerts a horizontal thrust on a stationary scroll in a direction opposite to a direction in which an eccentric shaft end portion formed at one end of a rotary shaft is oriented while turning the rotary shaft, and determines an orbital path of the stationary scroll by measuring horizontal displacements thereof. While exerting the horizontal thrust, the positioning system incrementally presses the stationary scroll against a guide frame until a stable orbital path of the stationary scroll is obtained. When the orbital path is judged to be stable, the positioning system determines a fixing point on which the stationary scroll should be fixedly centered with respect to the guide frame, so that a scroll wrap of the stationary scroll and a scroll wrap of an orbiting scroll are correctly intermeshed, forming a series of pockets therebetween.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 15, 2007
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shinobu Kokubun, Toshiaki Iwasaki, Tomohiro Shirahata