公开(公告)号：US20240309255A1

公开(公告)日：2024-09-19

申请号：US18673948

申请日：2024-05-24

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Daisuke KARUBE ,  Ryuo ITO ,  Kenji GOBOU ,  Tsubasa NAKAUE ,  Tatsumi TSUCHIYA

IPC: C09K5/04

CPC classification number: C09K5/045 ,  C09K2205/114 ,  C09K2205/126 ,  C09K2205/24

Abstract: Provided is a composition comprising fluoroethylene and an epoxide having 6 or less carbon atoms.

公开(公告)号：US20230048615A1

公开(公告)日：2023-02-16

申请号：US17975900

申请日：2022-10-28

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tsubasa NAKAUE ,  Daisuke KARUBE ,  Asako YOSHIYAMA

IPC: C07C43/12 ,  C09D201/04 ,  C11D7/30 ,  C09D7/63

Abstract: The present disclosure provides a composition containing (A) 1,1,1,3,3,3-hexafluoroisopropyl methyl ether (HFE-356mmz) and/or 1,1,2,3,3,3-hexafluoropropyl methyl ether (HFE-356mec), and (B) a fluorine oil.

公开(公告)号：US20220177764A1

公开(公告)日：2022-06-09

申请号：US17554863

申请日：2021-12-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Shun OHKUBO ,  Daisuke KARUBE

IPC: C09K5/04

Abstract: The present invention addresses a problem of providing a mixed refrigerant that combines two kinds of performances of having a coefficient of performance (COP) equivalent to that of R410A and of having a sufficiently small GWP. As a means for solving the problem, provided is a refrigerant-containing composition, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132 (E)), trifluoroethylene (HFO-1123), and difluoromethane (R32).

公开(公告)号：US20220106512A1

公开(公告)日：2022-04-07

申请号：US17553045

申请日：2021-12-16

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Shun OHKUBO ,  Daisuke KARUBE

IPC: C09K5/04 ,  F25B13/00

Abstract: An object is to provide a novel low-GWP mixed refrigerant. A solution to the problem is to provide a composition containing a refrigerant that contains trans-1,2-difluoroethylene (HFO-1132 (E)) and 1,3,3,3-tetrafluoropropene (R1234ze).

公开(公告)号：US20220064509A1

公开(公告)日：2022-03-03

申请号：US17502354

申请日：2021-10-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Shun OHKUBO ,  Tatsuya TAKAKUWA

IPC: C09K5/04

Abstract: An object of the present invention relates to a refrigerant composition that has three types of performance, i.e., a refrigerating capacity that is equivalent to or higher than that of R410A, a sufficiently low GWP, and a lower flammability (Class 2L) according to the ASHRAE standard. As a means for achieving the object, a composition comprising a refrigerant, the refrigerant comprising CO2, trans-1,2-difluoroethylene (HFO-1132(E)), difluoromethane (R32), and 2,3,3,3-tetrafluoro-l-propene (R1234yf), is provided.

公开(公告)号：US20210403399A1

公开(公告)日：2021-12-30

申请号：US17473330

申请日：2021-09-13

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Tatsuya TAKAKUWA ,  Osamu YAMAMOTO ,  Daisuke KARUBE

IPC: C07C17/358 ,  C07C17/383

Abstract: Provided is a method for obtaining HFO-1132(E) and/or HFO-1132(Z) efficiently. The method is a method for producing HFO-1132(E) and/or HFO-1132(Z), comprising supplying a composition containing HFO-1132(E) and/or HFO-1132(Z) to a reactor, and performing an isomerization reaction between HFO-1132(E) and HFO-1132(Z).

公开(公告)号：US20210164698A1

公开(公告)日：2021-06-03

申请号：US16772953

申请日：2018-12-18

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: F25B1/04 ,  F24F11/88 ,  C09K5/04

Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. The motor rotation rate of a compressor (100) can be changed in accordance with an air conditioning load, and thus a high annual performance factor (APF) can be achieved. In addition, an electrolytic capacitor is not required on an output side of a rectifier circuit (21), and thus an increase in the size and cost of the circuit is suppressed.

公开(公告)号：US20200347283A1

公开(公告)日：2020-11-05

申请号：US16911816

申请日：2020-06-25

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA ,  Takeo ABE ,  Yumi TODA

IPC: C09K5/04

Abstract: There are provided a refrigerating oil for refrigerant compositions in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP, a method for using the refrigerating oil, and use of the refrigerating oil. The refrigerating oil for a refrigerant composition contains a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

公开(公告)号：US20200339856A1

公开(公告)日：2020-10-29

申请号：US16954651

申请日：2018-11-13

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Yuzo KOMATSU ,  Shun OHKUBO ,  Tatsuya TAKAKUWA ,  Tetsushi TSUDA ,  Takeo ABE ,  Yumi TODA

IPC: C09K5/04

Abstract: There are provided a refrigerating oil for refrigerant compositions in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP, a method for using the refrigerating oil, and use of the refrigerating oil. The refrigerating oil for a refrigerant composition contains a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

公开(公告)号：US20200333051A1

公开(公告)日：2020-10-22

申请号：US16954973

申请日：2018-12-10

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: F25B13/00 ,  C09K5/04

Abstract: A refrigeration cycle is a refrigeration cycle using a mixed refrigerant which is a flammable refrigerant and which contains at least 1,2-difluoroethylene (HFO-1132(E)), and includes a compressor (1), a heat-source-side heat exchanger (3), an expansion mechanism (4), a use-side heat exchanger (2), and a decompression mechanism (7). The decompression mechanism (7) decompresses, between an inlet and an outlet of the heat-source-side heat exchanger (3), the mixed refrigerant flowing through the heat-source-side heat exchanger (3) that functions as an evaporator.