Patents by Inventor Yoichiro Iritani
Yoichiro Iritani 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).
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Publication number: 20130111940Abstract: The present invention discloses heat and cold sources of a THIC air conditioning system, comprising: a compressor (1), a first condenser (2) and a second condenser (3), which are connected successively; a first expansion valve (4) and a second expansion valve (5) respectively connected to the second condenser (3); a first evaporator (6) and a second evaporator (7) respectively connected to the compressor (1); the first evaporator (6) is connected to the first expansion valve (4) to form a first cycle branch; the second evaporator (7) is connected to the second expansion valve (5) to form a second cycle branch; the first cycle branch and the second cycle branch which are connected in parallel connect the second condenser (3) and the compressor (1). The heat and cold sources of the THIC air conditioning system of the present invention have a relatively high refrigeration efficiency so as to significantly reduce energy consumption and protect atmospheric environment.Type: ApplicationFiled: April 12, 2011Publication date: May 9, 2013Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TSINGHUA UNIVERSITYInventors: Sheng Wang, Tao Zhang, Dehai Zhou, Xianting Li, Wenxing Shi, Xiaohua Liu, Da Yan, Baolong Wang, Yoichiro Iritani, Kenji Ueda, Junnosuke Nakatani
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Publication number: 20110180617Abstract: [Problem to be Solved] An object is to provide an electric heating device that can heat fluid efficiently at a time of intermediate output, and a vehicle air conditioner including the electric heating device. [Solution] To include a plurality of flow paths in which fluid flows and a plurality of heating modules arranged adjacent to the flow path and including heating elements that generate heat by energization. At the time of intermediate output, the heating element in the heating module provided adjacent to a flow path among the plurality of flow paths having a relatively large flow rate of fluid is energized.Type: ApplicationFiled: October 26, 2010Publication date: July 28, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Katsuhiro Saito, Hideki Suetake, Yoichiro Iritani, Shirou Matsubara, Nobuya Nakagawa
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Patent number: 7028762Abstract: This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.Type: GrantFiled: March 14, 2005Date of Patent: April 18, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
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Patent number: 6966200Abstract: An evaporator is constructed such that bundles of heat exchanger tubes for flowing cold water are disposed inside a container for admitting the cooling medium. When a total cross sectional area of the heat exchanger tubes at various locations in a flow passage of the cold water is compared, the total area in a downstream location is less than a total area in an upstream location of the flow passage. Therefore, even though the temperature differential between the cold water and the cooling medium is small, the flow speeds of the cold water in the downstream tubes become faster than that in the upstream tubes, so that the heat flux is increased and heat transfer rate is improved.Type: GrantFiled: April 26, 2001Date of Patent: November 22, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoichiro Iritani, Akihiro Kawada, Koji Hirokawa, Sunao Aoki, Yoshinori Shirakata, Wataru Seki
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Publication number: 20050150638Abstract: This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.Type: ApplicationFiled: March 14, 2005Publication date: July 14, 2005Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
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Patent number: 6655173Abstract: An evaporator for a refrigerating system which prevents droplets of refrigerant from blowing upwards, and a refrigeration apparatus using thereof are provided. The evaporator for a refrigerating system includes a container into which the refrigerant is introduced, and heat exchanger tubes disposed in the container through which a cooled object flows. The evaporator further includes a prevention plate disposed above the heat exchanger tubes so that droplets of the refrigerant, which are blown upwards due to a boiling of the refrigerant, hit the prevention plate.Type: GrantFiled: July 19, 2002Date of Patent: December 2, 2003Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
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Publication number: 20030000246Abstract: An evaporator for a refrigerating system which prevents droplets of refrigerant from blowing upwards, and a refrigeration apparatus using thereof are provided. The evaporator for a refrigerating system includes a container into which the refrigerant is introduced, and heat exchanger tubes disposed in the container through which a cooled object flows. The evaporator further includes a prevention plate disposed above the heat exchanger tubes so that droplets of the refrigerant, which are blown upwards due to a boiling of the refrigerant, hit the prevention plate.Type: ApplicationFiled: July 19, 2002Publication date: January 2, 2003Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
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Patent number: 6497115Abstract: In an evaporator composed by providing plural heat-transfer pipes for flowing cold water in a container into which a refrigerant is introduced, the heat-transfer pipes are divided into plural pipe groups and the pipe groups are arranged in a zigzag pattern with intervals between each adjacent pipe groups. Bubbles which are generated around the heat-transfer pipes provided lower position, easily come to the surface of the refrigerant, and further, there are few bubbles which degrade the performance of the heat-transfer pipes positioned around the center of the pipe groups, preventing a fall in the heat transfer coefficient.Type: GrantFiled: July 23, 2001Date of Patent: December 24, 2002Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshinori Shirakata, Yoichiro Iritani, Koji Hirokawa, Akihiro Kawada, Wataru Seki, Sunao Aoki
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Patent number: 6481242Abstract: A condenser for condensing and liquifying a refrigerant by inducing the refrigerant into a receptacle (14), in which cooling water is fed through a plurality of thermal transmission pipes (15) which are arranged in bundles. A plate body (20) is provided between the bundles of the thermal transmission pipes, and slopes diagonally downwardly when viewed in cross-section from the direction of the length of the thermal transmission pipes. Consequently, the refrigerant falling toward the thermal transmission pipes at low positions is led diagonally downwardly by the plate body, so that the liquid film of refrigerant which adheres to the surfaces of the thertmal transmission pipes does not become too thick, thereby preventing reduction in the thermal transmittancy of the thermal transmission pipes.Type: GrantFiled: June 6, 2001Date of Patent: November 19, 2002Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshinori Shirakata, Kenji Ueda, Wataru Seki, Yoichiro Iritani, Akihiro Kawada
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Publication number: 20020157417Abstract: This evaporator (12) is constructed such that bundles of heat exchanger tubes (15) for flowing cold water are disposed inside the container (14) for admitting the cooling medium. When a total cross sectional area of the heat exchanger tubes (15) at various locations in the flow direction of the cold water is compared, the total area in a downstream location is less that a total area in an upstream location of the flow passage. Therefore, even though the temperature differential between the cold water and the cooling medium is small, the flow speeds of the cold water in the downstream tubes become faster than that in the upstream tubes, so that the heat flux is increased and heat transfer rate is improved even in tube group D.Type: ApplicationFiled: December 26, 2001Publication date: October 31, 2002Inventors: Yoichiro Iritani, Akihiro Kawada, Koji Hirokawa, Sunao Aoki, Yoshinori Shirakata, Wataru Seki
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Publication number: 20020046572Abstract: This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.Type: ApplicationFiled: October 23, 2001Publication date: April 25, 2002Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoichiro Iritani, Akihiro Kawada, Yoshinori Shirakata, Wataru Seki, Koji Hirokawa
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Publication number: 20010049944Abstract: The present invention provides a condenser for condensing and liquifying a refrigerant by inducing the refrigerant into a receptacle (14), in which cooling water is fed to through a plurality of thermal transmission pipes (15) which are arranged in bundles. A plate body (20) is provided between the bundles of the thermal transmission pipes, and slopes diagonally downward when viewed in cross-section from the direction of the length of the thermal transmission pipes. Consequently, the refrigerant falling toward the thermal transmission pipes at low positions is led diagonally downward by a the plate body, so that the liquid film of refrigerant which adheres to the surfaces of the thermal transmission pipes does not become too thick, thereby preventing reduction in the thermal transmittancy of the thermal transmission pipes.Type: ApplicationFiled: June 6, 2001Publication date: December 13, 2001Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Shirakata, Kenji Ueda, Wataru Seki, Yoichiro Iritani, Akihiro Kawada