公开(公告)号：US20230132359A2

公开(公告)日：2023-04-27

申请号：US17260870

申请日：2019-07-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Yoshinari ASANO ,  Keisuke OHTSUKA ,  Keiji AOTA ,  Mitsushi ITANO ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kenji GOBOU ,  Hitomi KUROKI ,  Tomoyuki GOTOU ,  Akihito MIZUNO ,  Yasufu YAMADA ,  Tatsumi TSUCHIYA ,  Yuuichi YANAGI ,  Yoshikazu NAKAO ,  Takeo ABE ,  Yumi TODA ,  Tetsushi TSUDA

IPC: C09K5/04 ,  F25B13/00

Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains is a small-GWP refrigerant.

公开(公告)号：US20230097829A1

公开(公告)日：2023-03-30

申请号：US17991204

申请日：2022-11-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Keisuke OHTSUKA ,  Yuuichi YANAGI ,  Takeo ABE ,  Yumi TODA ,  Tetsushi TSUDA

IPC: C09K5/04 ,  F25B13/00 ,  F25B29/00 ,  F25B31/00 ,  F25B49/02 ,  F24H4/02 ,  F25B41/00 ,  F24F1/0059 ,  F24F1/24 ,  F24F13/30 ,  F24F1/0067 ,  F24F1/0063 ,  F24F3/052 ,  F25B7/00 ,  F25B39/00 ,  F25B39/02 ,  F24F1/14 ,  F24F1/32 ,  F24F1/34 ,  F24F1/38 ,  F25B9/00 ,  F25B1/00 ,  F25B31/02 ,  F24F5/00 ,  F24F11/88 ,  F25B1/04 ,  F24H1/00 ,  F25B21/00 ,  F25B41/34

Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.

公开(公告)号：US20230029441A2

公开(公告)日：2023-01-26

申请号：US17260775

申请日：2019-07-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Kazuhiro FURUSHO ,  Masaru TANAKA ,  Shun OHKUBO ,  Mitsushi ITANO ,  Yuuki YOTSUMOTO ,  Akihito MIZUNO ,  Tomoyuki GOTOU ,  Yasufu YAMADA ,  Tatsumi TSUCHIYA ,  Kenji GOBOU ,  Hitomi KUROKI ,  Daisuke KARUBE ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA

IPC: C09K5/04 ,  B60H1/32 ,  C10M171/00

Abstract: No studies have been made regarding what kinds of refrigerants should be used in a refrigeration cycle device for a vehicle. An air conditioner (1) for a vehicle includes a refrigerant circuit (10) and a refrigerant that is sealed in the refrigerant circuit (10). The refrigerant circuit (10) includes a compressor (80), a first heat exchanger (85), which serves as a heat dissipater in a dehumidifying heating mode, an outside-air heat exchanger (82), a cooling control valve (87), and a second heat exchanger (86), which serves as an evaporator in the dehumidifying heating mode. The refrigerant is a refrigerant having a low GWP.

公开(公告)号：US20230027989A1

公开(公告)日：2023-01-26

申请号：US17956122

申请日：2022-09-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tatsuya TAKAKUWA ,  Atsushi NOGUCHI ,  Yuuta HASUMOTO ,  Satoru YOSHIZAKI ,  Hiroyuki MURATA ,  Tsuneyoshi IWASAKI

IPC: G16C20/10 ,  G06N3/12 ,  G06N7/00

Abstract: This disclosure relates to an analysis method for analyzing a chemical reaction from one or more starting materials, comprising a preparation step S1 of preparing a reaction network diagram indicating the one or more starting materials, at least part of one or more intermediate products and one or more final products generated from the chemical reaction, and reaction pathways of the chemical reaction, and a prediction step S2 of predicting the reaction rate in each reaction pathway using an artificial intelligence algorithm.

公开(公告)号：US20230014347A1

公开(公告)日：2023-01-19

申请号：US17895529

申请日：2022-08-25

Applicant: DAIKIN INDUSTRIES, LTD. ,  OSAKA UNIVERSITY

Inventor： Yuuta HASUMOTO ,  Tatsuya TAKAKUWA ,  Osamu YAMAMOTO ,  Hideki NAKAYA ,  Masao NOUMI ,  Kazuyuki SATOU ,  Kohei YAMANOI ,  Akihiro OSHIMA

IPC: C07C17/278

Abstract: This disclosure provides a method for producing a hydrofluoroolefin (HFO) or fluoroolefin (FO), which is a target compound, with high selectivity, without requiring a high temperature and a catalyst in a synthesis process of the target compound. Specifically, the present disclosure provides a method for producing a hydrofluoroolefin or fluoroolefin having two, three, or four carbon atoms, comprising irradiating at least one starting material compound selected from the group consisting of hydrofluorocarbons having one or two carbon atoms and hydrofluoroolefin As having two or three carbon atoms with ionizing radiation and/or an ultraviolet ray having a wavelength of 300 nm or less, with the proviso that when the at least one starting material compound is the hydrofluoroolefin A, the resulting hydrofluoroolefin is different from the hydrofluoroolefin A.

公开(公告)号：US20220356386A1

公开(公告)日：2022-11-10

申请号：US17260762

申请日：2019-07-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shinichi FUJINAKA ,  Masaru TANAKA ,  Shun OHKUBO ,  Mitsushi ITANO ,  Yuuki YOTSUMOTO ,  Akihito MIZUNO ,  Tomoyuki GOTOU ,  Yasufu YAMADA ,  Hitomi KUROKI ,  Tatsumi TSUCHIYA ,  Kenji GOBOU ,  Daisuke KARUBE ,  Tatsuya TAKAKUWA

IPC: C09K5/04 ,  F25B9/00

Abstract: A showcase includes a refrigerant circuit and a refrigerant enclosed in the refrigerant circuit. The refrigerant circuit includes a compressor (121), a radiator (122), an expansion valve (123), and an evaporator (124). The refrigerant is a low-GWP refrigerant.

公开(公告)号：US20220177395A1

公开(公告)日：2022-06-09

申请号：US17677355

申请日：2022-02-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yuuko OHHIGASHI ,  Tatsuya TAKAKUWA ,  Kazuhiro TAKAHASHI

IPC: C07C17/383 ,  C07C19/08 ,  C09K5/04

Abstract: An object of the present invention is to provide a method that can efficiently remove water contained in pentafluoropropane. Provided as a solution is a method comprising distilling a composition comprising pentafluoropropane and water to thereby extract pentafluoropropane with a water content higher than that of the composition as a first stream, and pentafluoropropane with a water content lower than that of the composition as a second stream.

公开(公告)号：US20210095897A1

公开(公告)日：2021-04-01

申请号：US16954745

申请日：2018-12-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Takuro YAMADA ,  Atsushi YOSHIMI ,  Ikuhiro IWATA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tatsuya TAKAKUWA ,  Yuzo KOMATSU ,  Shun OHKUBO

IPC: F25B1/00 ,  C09K5/04 ,  F24F5/00

Abstract: A heat source unit and a refrigeration cycle apparatus that are able to reduce damage to a connection pipe when a refrigerant containing at least 1,2-difluoroethylene is used are provided. An outdoor unit (20) that is connected via a liquid-side connection pipe (6) and a gas-side connection pipe (5) to an indoor unit (30) including an indoor heat exchanger (31) and that is a component of an air conditioner (1) includes a compressor (21) and an outdoor heat exchanger (23). A refrigerant containing at least 1,2-difluoroethylene is used as a refrigerant. A design pressure of the outdoor unit (20) is lower than 1.5 times a design pressure of each of the liquid-side connection pipe (6) and the gas-side connection pipe (5).

公开(公告)号：US20200378662A1

公开(公告)日：2020-12-03

申请号：US16954956

申请日：2018-12-11

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA ,  Yuuichi YANAGI

IPC: F25B39/02 ,  C09K5/04

Abstract: An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).

公开(公告)号：US20200340714A1

公开(公告)日：2020-10-29

申请号：US16955207

申请日：2018-12-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA ,  Yuuichi YANAGI

IPC: F25B13/00 ,  C09K5/04

Abstract: A refrigeration cycle apparatus including a heat exchanger can decrease the material cost. An air conditioning apparatus (10) that is a refrigeration cycle apparatus includes a flammable refrigerant containing at least 1,2-difluoroethylene, an outdoor heat exchanger (23), and an indoor heat exchanger (27). One of the outdoor heat exchanger (23) and the indoor heat exchanger (27) is an evaporator that evaporates the refrigerant, and the other one is a condenser that condenses the refrigerant. The outdoor heat exchanger (23) and the indoor heat exchanger (27) each are a heat exchanger that includes metal plates (19) serving as a plurality of fins made of aluminum or an aluminum alloy, and flat tubes (16) serving as a plurality of heat transfer tubes made of aluminum or an aluminum alloy, and that causes the refrigerant flowing inside the flat tubes (16) and the air flowing along the metal plates (19) to exchange heat with each other. The refrigerant repeats a refrigeration cycle by circulating through the outdoor heat exchanger (23) and the indoor heat exchanger (27).