Patents by Inventor Taichi YOSHII
Taichi YOSHII 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: 20240125527Abstract: Provided is a air purge device that can effectively discharge air.Type: ApplicationFiled: February 18, 2022Publication date: April 18, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Nobuki OKA, Ryo KAMITO, Yoshiaki ITO, Taichi YOSHII, Tatsuo ISHIGURO, Yoshie TOGANO, Norihisa HORAGUCHI, Masahiko NAGAI, Naoya MIYOSHI
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Publication number: 20240035719Abstract: This refrigeration machine comprises a compressor that compresses a refrigerant, a condenser that condenses the refrigerant which has been compressed by the compressor, an expander that expands the refrigerant which has been condensed by the condenser, a liquid film type evaporator that evaporates the refrigerant which has been expanded by the expander, and an eductor that generates flow speed difference and pressure difference in the refrigerant which has been expanded by the expander and suctions refrigerant stored in the evaporator.Type: ApplicationFiled: November 16, 2021Publication date: February 1, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Taichi YOSHII, Tatsuo ISHIGURO, Yoshie TOGANO, Naoya MIYOSHI, Wenping WU
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Patent number: 11834968Abstract: A steam generation apparatus includes: a heat medium flow passage through which a heat medium flows; a primary economizer disposed in the heat medium flow passage; a secondary economizer disposed in the heat medium flow passage at an upstream side of the primary economizer with respect to a flow direction of the heat medium; a primary evaporator disposed in the heat medium flow passage at an upstream side of the secondary economizer with respect to the flow direction of the heat medium; a first flash tank for generating flash steam; a first feed water line configured to supply water heated by the primary economizer to the secondary economizer; and a second feed water line disposed so as to branch from the first feed water line and configured to supply the water heated by the primary economizer to the first flash tank.Type: GrantFiled: November 26, 2020Date of Patent: December 5, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hideyuki Uechi, Yuichi Otani, Fumito Kajitani, Taichi Yoshii, Norito Katsuki, Kanako Nagayama, Takahiro Hidaka
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Publication number: 20230022466Abstract: A steam generation apparatus includes: a heat medium flow passage through which a heat medium flows; a primary economizer disposed in the heat medium flow passage; a secondary economizer disposed in the heat medium flow passage at an upstream side of the primary economizer with respect to a flow direction of the heat medium; a primary evaporator disposed in the heat medium flow passage at an upstream side of the secondary economizer with respect to the flow direction of the heat medium; a first flash tank for generating flash steam; a first feed water line configured to supply water heated by the primary economizer to the secondary economizer; and a second feed water line disposed so as to branch from the first feed water line and configured to supply the water heated by the primary economizer to the first flash tank.Type: ApplicationFiled: November 26, 2020Publication date: January 26, 2023Inventors: Hideyuki UECHI, Yuichi OTANI, Fumito KAJITANI, Taichi YOSHII, Norito KATSUKI, Kanako NAGAYAMA, Takahiro HIDAKA
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Patent number: 11480370Abstract: An evaporator (2) is provided with a casing (5), a refrigerant supply section (7), a first heat transfer pipe group (10), and a second heat transfer pipe group (11). The first heat transfer pipe group (10) is disposed in the lower part of the space in the casing (5) so as to be immersed in the refrigerant and comprises a plurality of heat transfer pipes (12) through which liquid to be cooled flows. The second heat transfer pipe group (11) is provided in the space in the casing (5) at a position below the refrigerant supply section (7) and above the liquid level of the refrigerant, and comprises a plurality of second heat transfer pipes (13) through which liquid to be cooled flows.Type: GrantFiled: December 4, 2018Date of Patent: October 25, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Taichi Yoshii, Yasutaka Aoki, Takeshi Kaneko
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Patent number: 11448435Abstract: An evaporator (2) comprising: a casing (5); a plurality of heat transfer tubes (12) which are immersed in a liquid refrigerant (RL) in a liquid-phase region (A1) and in the interior of which a fluid having a higher temperature than that of the liquid refrigerant (RL) flows; and a demister (7) which is provided so as to cover from above the liquid surface (Ls) of the liquid refrigerant (RL) accommodated in the liquid-phase region (A1), and which traps liquid droplets contained in evaporated gas refrigerant (RG). The demister (7) comprises inclined sections (13) which, when viewed in a cross section intersecting the axial line (O2) of the heat transfer tubes (12), separate from the liquid surface (Ls) toward the center portion of the casing (5) along the liquid surface (Ls).Type: GrantFiled: October 11, 2018Date of Patent: September 20, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Takeshi Kaneko, Taichi Yoshii, Naoya Miyoshi, Yasushi Hasegawa
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Publication number: 20210123644Abstract: An evaporator (2) is provided with a casing (5), a refrigerant supply section (7), a first heat transfer pipe group (10), and a second heat transfer pipe group (11). The first heat transfer pipe group (10) is disposed in the lower part of the space in the casing (5) so as to be immersed in the refrigerant and comprises a plurality of heat transfer pipes (12) through which liquid to be cooled flows. The second heat transfer pipe group (11) is provided in the space in the casing (5) at a position below the refrigerant supply section (7) and above the liquid level of the refrigerant, and comprises a plurality of second heat transfer pipes (13) through which liquid to be cooled flows.Type: ApplicationFiled: December 4, 2018Publication date: April 29, 2021Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Taichi YOSHII, Yasutaka AOKI, Takeshi KANEKO
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Publication number: 20200309424Abstract: An evaporator (2) comprising: a casing (5); a plurality of heat transfer tubes (12) which are immersed in a liquid refrigerant (RL) in a liquid-phase region (A1) and in the interior of which a fluid having a higher temperature than that of the liquid refrigerant (RL) flows; and a demister (7) which is provided so as to cover from above the liquid surface (Ls) of the liquid refrigerant (RL) accommodated in the liquid-phase region (A1), and which traps liquid droplets contained in evaporated gas refrigerant (RG). The demister (7) comprises inclined sections (13) which, when viewed in a cross section intersecting the axial line (O2) of the heat transfer tubes (12), separate from the liquid surface (Ls) toward the center portion of the casing (5) along the liquid surface (Ls).Type: ApplicationFiled: October 11, 2018Publication date: October 1, 2020Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Takeshi KANEKO, Taichi YOSHII, Naoya MIYOSHI, Yasushi HASEGAWA
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Publication number: 20190063801Abstract: The present invention maintains a compact evaporator size in a centrifugal chiller utilizing a low pressure refrigerant used at a maximum pressure of less than 0.2 MPaG while avoiding efficiency losses and equipment damage that result from carryover of liquid state refrigerant to the turbo compressor side.Type: ApplicationFiled: April 12, 2017Publication date: February 28, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Naoya MIYOSHI, Kazuki WAJIMA, Taichi YOSHII, Yuichi OTANI