Patents by Inventor Keiji Sakagawa

Keiji Sakagawa 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: 11891181
    Abstract: An outer panel-mediated cooling system includes a heat source chamber; a cooling path that is located between outer and inner panels; a non-cooling path that is located between the outer and inner panels and thermally insulated from a cooling path and the outer panel and through which at least one of pressurized gas and return gas from the heat source chamber passes; a mixing chamber into which cooled gas leaving the cooling path and an uncooled gas leaving the non-cooling path flow, in which the cooled gas and the uncooled gas are mixed to form a mixed gas, and out of which the mixed gas flows toward the heat source chamber; and a flow rate regulating valve that regulates a flow rate of gas flowing toward the mixing chamber.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: February 6, 2024
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yu Haruki, Keiji Sakagawa, Kazuhide Hakamada, Ryosuke Mitani
  • Patent number: 11724810
    Abstract: An outer panel-mediated cooling system includes: an outer shell including an outer panel, an inner panel located inward of the outer panel, and a heat-insulating layer located between the outer and inner panels; a cooling chamber that is located between the outer and inner panels and in which a gas releases heat outside through the outer panel and is thus cooled; a circulation loop in which a heat medium circulates, the circulation loop including a heating section located inward of the inner panel to heat the heat medium and a cooling section located in the cooling chamber to cool the heat medium; a flow path-forming structure located in the cooling chamber to form a circulation path for the gas; and a fan located in the cooling chamber to exert a drive force on the gas to allow the gas to circulate in the circulation path.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: August 15, 2023
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yu Haruki, Keiji Sakagawa, Kazuhide Hakamada, Ryosuke Mitani
  • Publication number: 20230247793
    Abstract: An evaporator that receives heat from a heat generator to change at least part of a working fluid from a liquid phase to a gas phase includes: a housing including an accommodation chamber that accommodates the working fluid; and a heat receiver located on a bottom surface of the housing and thermally connected to the heat generator. The housing includes: a porous plate dividing the accommodation chamber into an upper chamber and a lower chamber and including a large number of pores through which the upper and lower chambers communicate with each other; at least one working fluid inlet opening into the upper chamber; a partition dividing a bottom of the lower chamber into liquid retainers; and at least one working fluid outlet opening into the lower chamber and located above the partition.
    Type: Application
    Filed: June 24, 2021
    Publication date: August 3, 2023
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kazuhide HAKAMADA, Keiji SAKAGAWA, Yu HARUKI
  • Publication number: 20230170702
    Abstract: An energy supply system, which is a system constituting a regional power system in a target region, includes a power transmission system including a first power generation facility and a second power generation facility, a power transmission and distribution system that supplies power to each consumer, a management system, and an unmanned flying object. The unmanned flying object has a transport function of transporting a cargo and a power supply function of supplying power to an outside. When the amount of power supplied by the power transmission system is less than the amount of power required by the power transmission and distribution system, the management system performs a power adjustment process of supplying power from the unmanned flying object to the power transmission and distribution system by using the power supply function of the unmanned flying object.
    Type: Application
    Filed: March 17, 2021
    Publication date: June 1, 2023
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Koki KONDO, Keiji SAKAGAWA, Kazuhide HAKAMADA, Akira HANAMITSU, Kazuhiko TANIMURA
  • Publication number: 20220090867
    Abstract: An evaporator incorporated into a transportation machine includes: heat exchange units aligned in a horizontal direction in the transportation machine placed on a horizontal surface and whose positions change together; distribution conduits connected respectively to the heat exchange units to supply a working fluid in a liquid phase to the heat exchange units; and valves disposed respectively in the distribution conduits to block passage of the working fluid flowing from the heat exchange units toward the distribution conduits at least when a tilt of the heat exchange units is equal to or greater than a predetermined threshold. Each heat exchange unit includes: an inlet portion connected to the distribution conduit; and a heat exchange portion that includes at least one heat exchange path extending straight upward from the inlet portion and that allows the working fluid passing through the heat exchange path to exchange heat with the heat source.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 24, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220090866
    Abstract: A heat transport system includes: a two-phase closed loop heat pipe; a pump disposed in a liquid conduit or a vapor conduit of the loop heat pipe to exert a circulation drive force on a working fluid; a tilt sensor that detects a tilt of the loop heat pipe; and a controller configured to run the pump if the tilt is greater than a predetermined tilt threshold and stop the pump if the tilt is equal to or smaller than the tilt threshold.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 24, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220082335
    Abstract: A loop heat pipe incorporated into a transportation machine whose allowable tilt angle is ?° includes: an evaporator that changes at least a part of a working fluid from a liquid phase into a gas phase by heat absorbed from a heat source; a condenser that changes the working fluid from the gas phase into the liquid phase; a vapor conduit connecting an outlet of the evaporator and an inlet of the condenser; and a liquid conduit connecting an outlet of the condenser and an inlet of the evaporator. When the transportation machine is placed on a horizontal surface, a conduit centerline of the liquid conduit extends downward from the condenser to the evaporator, and a tangent line to the conduit centerline at an arbitrary point on the conduit centerline forms an angle of ?° to 90° with a horizontal plane.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 17, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220065548
    Abstract: A loop heat pipe incorporated into a transportation machine that performs tilting movements includes: an evaporator that changes at least a part of a working fluid from a liquid phase into a gas phase; first and second condensers that change the working fluid from the gas phase into the liquid phase; first vapor and liquid conduits connecting the evaporator and the first condenser; and second vapor and liquid conduits connecting the evaporator and the second condenser. When the transportation machine is placed on a horizontal surface, the first and second condensers are located above the evaporator, and the first and second condensers are spaced apart in a horizontal direction, with the tilt axis and the evaporator interposed between the first and second condensers.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 3, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220063817
    Abstract: An outer panel-mediated cooling system includes: an outer shell including an outer panel, an inner panel located inward of the outer panel, and a heat-insulating layer located between the outer and inner panels; a cooling chamber that is located between the outer and inner panels and in which a gas releases heat outside through the outer panel and is thus cooled; a circulation loop in which a heat medium circulates, the circulation loop including a heating section located inward of the inner panel to heat the heat medium and a cooling section located in the cooling chamber to cool the heat medium; a flow path-forming structure located in the cooling chamber to form a circulation path for the gas; and a fan located in the cooling chamber to exert a drive force on the gas to allow the gas to circulate in the circulation path.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 3, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220065547
    Abstract: An evaporator includes: a housing having a plurality of surfaces including a front surface and a back surface, at least one of the front and back surfaces having the largest area among the plurality of surfaces; and a heat-absorbing element disposed on at least one of the front and back surfaces and thermally connected to a heat source. The housing includes: at least one working fluid inlet located in a surface of the housing, the surface being other than a top surface of the housing; and at least one pair of working fluid outlets located respectively in opposite longitudinal end portions of the top surface.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 3, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220063816
    Abstract: An outer panel-mediated cooling system includes a heat source chamber; a cooling path that is located between outer and inner panels; a non-cooling path that is located between the outer and inner panels and thermally insulated from a cooling path and the outer panel and through which at least one of pressurized gas and return gas from the heat source chamber passes; a mixing chamber into which cooled gas leaving the cooling path and an uncooled gas leaving the non-cooling path flow, in which the cooled gas and the uncooled gas are mixed to form a mixed gas, and out of which the mixed gas flows toward the heat source chamber; and a flow rate regulating valve that regulates a flow rate of gas flowing toward the mixing chamber.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 3, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Publication number: 20220034596
    Abstract: An evaporator that changes at least a part of a working fluid from a liquid phase into a gas phase by using heat of a heat-generating element includes: a housing including at least one working fluid inlet and at least one working fluid outlet and defining a working fluid-receiving chamber that receives the working fluid; a heat-absorbing element located at a bottom surface of the housing and thermally connected to the heat-generating element; and a wall structure rising from a boiling surface in the working fluid-receiving chamber and dividing a bottom region of the working fluid-receiving chamber into a plurality of segments to form a plurality of recesses located in the bottom region of the working fluid to trap the working medium.
    Type: Application
    Filed: December 24, 2019
    Publication date: February 3, 2022
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yu HARUKI, Keiji SAKAGAWA, Kazuhide HAKAMADA, Ryosuke MITANI
  • Patent number: 10370008
    Abstract: An air-conditioning system in vehicle is installed in a vehicle in which a vehicle body center position and an aisle center position are different, and has an air conditioner. The air-conditioning system in vehicle has first and second outlets arranged on both sides of the vehicle in a vehicle width direction and discharging conditioned air having substantially the same air volume into an interior, and an air regulating member setting a merging position of air flows discharged from the first and second outlets to the position where the line segment connecting the vehicle body center position and the aisle center position is internally divided at a ratio of between 20:80 and 86:14.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: August 6, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Koki Kondo, Keiji Sakagawa, Ryosuke Mitani, Kazuto Nakai
  • Patent number: 9771086
    Abstract: An air-conditioning duct in a passenger car of transportation which is extended in a vehicle length direction in a ceiling portion of the passenger car utilized by the general public and receives conditioned air from an air-conditioning apparatus regulating a temperature of the air to guide the conditioned air into an inside of the passenger car. The air-conditioning duct in a passenger car has a non-uniform distribution configuration which makes the discharge volume of the conditioned air from the air-conditioning duct into the inside of the passenger car different and non-uniform among the respective regions of the inside of the passenger car.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 26, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takashi Sasaki, Yoshinori Hara, Yasuo Onitake, Ryosuke Mitani, Kouki Kondo, Keiji Sakagawa
  • Publication number: 20150344045
    Abstract: An air-conditioning system in vehicle is installed in a vehicle in which a vehicle body center position and an aisle center position are different, and has an air conditioner. The air-conditioning system in vehicle has first and second outlets arranged on both sides of the vehicle in a vehicle width direction and discharging conditioned air having substantially the same air volume into an interior, and an air regulating member setting a merging position of air flows discharged from the first and second outlets to the position where the line segment connecting the vehicle body center position and the aisle center position is internally divided at a ratio of between 20:80 and 86:14.
    Type: Application
    Filed: December 17, 2013
    Publication date: December 3, 2015
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Koki KONDO, Keiji SAKAGAWA, Ryosuke MITANI, Kazuto NAKAI
  • Publication number: 20140370796
    Abstract: An air-conditioning duct in a passenger car of transportation which is extended in a vehicle length direction in a ceiling portion of the passenger car utilized by the general public and receives conditioned air from an air-conditioning apparatus regulating a temperature of the air to guide the conditioned air into an inside of the passenger car. The air-conditioning duct in a passenger car has a non-uniform distribution configuration which makes the discharge volume of the conditioned air from the air-conditioning duct into the inside of the passenger car different and non-uniform among the respective regions of the inside of the passenger car.
    Type: Application
    Filed: November 7, 2012
    Publication date: December 18, 2014
    Applicant: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Takashi Sasaki, Yoshinori Hara, Yasuo Onitake, Ryosuke Mitani, Kouki Kondo, Keiji Sakagawa