公开(公告)号：US20230117208A1

公开(公告)日：2023-04-20

申请号：US18078559

申请日：2022-12-09

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Keisuke OHTSUKA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tetsushi TSUDA

IPC: F25B31/02 ,  C09K5/04

Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.

公开(公告)号：US20220404070A1

公开(公告)日：2022-12-22

申请号：US17892759

申请日：2022-08-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Keisuke OHTSUKA ,  Mitsushi ITANO ,  Daisuke KARUBE ,  Yuuki YOTSUMOTO ,  Kazuhiro TAKAHASHI ,  Tetsushi TSUDA

IPC: F25B31/02

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：US20200333041A1

公开(公告)日：2020-10-22

申请号：US16955222

申请日：2018-12-17

Applicant: DAIKIN INDUSTRIES, LTD.

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

IPC: F24F13/30 ,  F24F1/0059 ,  F24F1/24 ,  C09K5/04

Abstract: A refrigeration cycle apparatus that can improve operation efficiency when a refrigerant that contains at least 1,2-difluoroethylene is used is provided. An air conditioning apparatus 1 includes a compressor (21), an outdoor heat exchanger (23), an outdoor expansion valve (24), an indoor heat exchanger (31), and a suction injection pipe (40), and uses a refrigerant that contains at least 1,2-difluoroethylene. The suction injection pipe (40) allows a part of a refrigerant that flows toward the indoor heat exchanger (31) from the outdoor heat exchanger (23) to merge with a low-pressure refrigerant that is sucked into the compressor (21).

公开(公告)号：US20200332166A1

公开(公告)日：2020-10-22

申请号：US16955565

申请日：2018-12-18

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 ,  Yoshinari ASANO ,  Keiji AOTA ,  Yuuichi YANAGI ,  Yoshikazu NAKAO ,  Takeo ABE ,  Yumi TODA ,  Tetsushi TSUDA

IPC: C09K5/04 ,  F25B41/00

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 at least 1,2-difluoroethylene.

公开(公告)号：US20220389299A1

公开(公告)日：2022-12-08

申请号：US17358406

申请日：2021-06-25

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 ,  C10M171/00

Abstract: There is provided a refrigeration cycle apparatus in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP. The refrigeration cycle apparatus contains a refrigerating oil and a refrigerant composition containing 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：US20220380648A1

公开(公告)日：2022-12-01

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：US20210309902A1

公开(公告)日：2021-10-07

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：US20210164701A1

公开(公告)日：2021-06-03

申请号：US16772961

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: F25B13/00 ,  F25B49/02 ,  C09K5/04

Abstract: In an air conditioner that uses a refrigerant mixture containing at least 1,2-difluoroethylene, high efficiency is achieved. In the air conditioner (1), a compressor (100, 200) can be driven without interposing a power conversion device between an AC power source (90, 190) and a motor (70, 170). Thus, it is possible to provide the air conditioner (1) that is environmentally friendly and has a relatively inexpensive configuration.

公开(公告)号：US20240218226A1

公开(公告)日：2024-07-04

申请号：US18426596

申请日：2024-01-30

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Eiji KUMAKURA ,  Kazuhiro FURUSHO ,  Masaru TANAKA ,  Shun ONKUBO ,  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

CPC classification number: C09K5/045 ,  C09K2205/106 ,  C09K2205/122 ,  C09K2205/126

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：US20240117984A1

公开(公告)日：2024-04-11

申请号：US18542371

申请日：2023-12-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kousuke TSUBOI ,  Takao SONODA ,  Makoto IKEDA ,  Tetsushi TSUDA ,  Yu OTA ,  Yuuichi KITA ,  Kenji AMANO ,  Atsushi MATSUBARA ,  Tomomi KUKITA ,  Naoko KURIYAMA ,  Tomoyoshi ASHIKAGA ,  Gen KUMAMOTO

IPC: F24F11/58 ,  F24F11/63 ,  F24F13/20 ,  G05B19/02

CPC classification number: F24F11/58 ,  F24F11/63 ,  F24F13/20 ,  G05B19/02 ,  F24F2130/40

Abstract: Provided is an air conditioner including an indoor unit provided with a microphone element for receiving voice instructions, such that a voice instruction spoken by an operator is acquired with high quality and control based on the voice instruction spoken by the operator is likely to be ensured. The air conditioner includes an indoor unit, a transmission unit, and a reception unit. The indoor unit has a main body and a microphone element. The main body has formed therein a blow-out port through which air-conditioned air is blown out toward a space to be air-conditioned. The microphone element accepts a voice instruction captured from a voice capturing portion arranged at a position that deviates from a ventilation space through which the air blown out from the blow-out port flows, in such a manner as to face the space to be air-conditioned. The transmission unit transmits the voice instruction accepted by the microphone element to an outside as a signal. The acceptance unit receives a command corresponding to the signal transmitted from the transmission unit from the outside.