公开(公告)号：US20240263852A1

公开(公告)日：2024-08-08

申请号：US18607119

申请日：2024-03-15

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Haruka TARAI ,  Hideki MATSUURA ,  Masaru TANAKA ,  Arisa KAWAE

IPC: F25B31/00 ,  C09K5/04 ,  C10M107/34 ,  C10N40/30 ,  F04C18/02 ,  F04C29/02 ,  F25B9/00 ,  H02K3/30 ,  H02K3/32

CPC classification number: F25B31/002 ,  C09K5/042 ,  C10M107/34 ,  F04C18/0215 ,  F04C29/02 ,  F25B9/002 ,  H02K3/30 ,  H02K3/325 ,  C09K2205/12 ,  C10M2209/1023 ,  C10M2209/1055 ,  C10N2040/30 ,  F04C2240/30 ,  F04C2240/403

Abstract: A compressor includes a casing, a compression mechanism, and an insulating member. A refrigerating machine oil is stored in the casing. The compression mechanism is housed within the casing. The compression mechanism compresses a refrigerant. The insulating member is housed within the casing. The insulating member is formed of a polymer having an ester bond. The refrigerant includes a hydrocarbon as a main component. The refrigerant has a saturated water content of less than 0.3% by weight. The refrigerating machine oil has a saturated water content of 1.8% by weight or more. A refrigeration apparatus includes the compressor.

公开(公告)号：US20220146163A1

公开(公告)日：2022-05-12

申请号：US17585776

申请日：2022-01-27

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Masaru TANAKA ,  Hideki MATSUURA ,  Arisa KAWAE

IPC: F25B47/00

Abstract: There is provided a refrigerant cycle apparatus capable of suppressing, even when a refrigerant containing CF3I is used, corrosion of a component of a refrigerant circuit due to the refrigerant containing CF3I. A refrigerant cycle apparatus includes a refrigerant circuit in which a refrigerant containing CF3I circulates, the refrigerant circuit including a compressor, an expansion valve, an outdoor heat exchanger, and an indoor heat exchanger that are connected to each other. The refrigerant circuit includes a component to be in contact with the refrigerant. At least a surface of the component to be in contact with the refrigerant is formed by a corrosion resistance material that contains at least one or more selected from a metal in which the percentage of zinc is 10 wt % or less, a resin other than nylon 66, and carbon.

公开(公告)号：US20240410368A1

公开(公告)日：2024-12-12

申请号：US18811163

申请日：2024-08-21

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Arisa KAWAE ,  Hideki MATSUURA ,  Masaru TANAKA ,  Haruka TERAI

IPC: F25B9/00 ,  F04C29/02 ,  F16C33/10 ,  F16C33/12 ,  F25B31/02

Abstract: Hydrocarbon-type refrigerants tend to dissolve in refrigerating machine oils, which may result in a decrease in the viscosity of the refrigerating machine oils and cause excessive wear of the sliding portions inside the compressors. An air conditioning apparatus includes a refrigerant circuit in which a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger are sequentially connected and a refrigerant is circulated. The compressor includes a sliding portion including a first bearing metal or an Oldham ring. At least one of two members slidable with each other in the sliding portion is formed of aluminum or aluminum alloy. The refrigerant circulating through the refrigerant circuit is a hydrocarbon-type refrigerant. A refrigerating machine oil used in the compressor has a refrigerant solubility of 30% or less at a pressure of 1.9 MPa and at a temperature of 60° C.

公开(公告)号：US20240247205A1

公开(公告)日：2024-07-25

申请号：US18624498

申请日：2024-04-02

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Arisa KIRA ,  Masaru TANAKA ,  Hideki MATSUURA

IPC: C10M107/24 ,  C09K5/04 ,  C10N30/06 ,  C10N30/10 ,  C10N30/12 ,  C10N40/30

CPC classification number: C10M107/24 ,  C09K5/045 ,  C09K2205/122 ,  C09K2205/126 ,  C09K2205/22 ,  C09K2205/24 ,  C10M2209/043 ,  C10N2030/06 ,  C10N2030/10 ,  C10N2030/12 ,  C10N2040/30

Abstract: A compressor is a compressor for a refrigeration cycle apparatus that performs a refrigeration cycle using a refrigerant containing a hydrofluoroolefin and a refrigeration oil containing a polyol ester or a polyvinyl ether. The compressor includes a sliding portion. The sliding portion is formed of an aluminum alloy containing from 5 wt % to 25 wt % of silicon. The refrigeration oil contains an acid scavenger or an oxygen scavenger and satisfies the following relational formula: total content (wt %) of acid scavenger and oxygen scavenger in refrigeration oil≥(2.3+2.6×(hydrofluoroolefin content (wt %) in refrigerant)−1.6×(silicon content (wt %) in sliding portion))/100.

公开(公告)号：US20240240101A1

公开(公告)日：2024-07-18

申请号：US18561350

申请日：2022-05-11

Applicant: DAICEL CORPORATION ,  DAIKIN INDUSTRIES, LTD.

Inventor： Norihiro KIMOTO ,  Hisayoshi ITO ,  Kouichi UMEMOTO ,  Takeru KASHIWAGI ,  Daisuke SHIRO ,  Hidekazu TAKEUCHI ,  Hideki MATSUURA ,  Shogo MOROE ,  Arisa KAWAE ,  Masaru TANAKA

IPC: C10M125/02 ,  C10M171/00 ,  C10N20/04 ,  C10N20/06 ,  C10N30/06 ,  C10N40/30

CPC classification number: C10M125/02 ,  C10M171/008 ,  C10M2201/041 ,  C10N2020/04 ,  C10N2020/06 ,  C10N2030/06 ,  C10N2040/30

Abstract: Provided is a composition for a refrigeration machine capable of reducing a friction coefficient in friction between sliding members in a refrigeration machine, and a composition kit for a refrigeration machine for providing the composition for a refrigeration machine. A composition for a refrigeration machine of the present disclosure includes a refrigeration machine oil, nanodiamond particles dispersed in the refrigeration machine oil, and a dispersant. The refrigeration machine oil preferably contains a polyvinyl ether, a polyol ester, a polyalkylene glycol, an alkylbenzene, or a mineral oil. The composition kit for a refrigeration machine of the present disclosure includes a refrigeration machine oil (A) containing a base oil and nanodiamond particles dispersed in the base oil, and a refrigerant (B).

公开(公告)号：US20150300698A1

公开(公告)日：2015-10-22

申请号：US14439626

申请日：2013-10-31

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Masaru TANAKA ,  Hideki MATSUURA ,  Shigeharu TAIRA ,  Akinori NAKAI

IPC: F25B13/00

CPC classification number: F25B13/00 ,  C09K5/045 ,  C09K2205/24 ,  C10M171/008 ,  C10M2203/04 ,  C10M2207/042 ,  C10M2207/2835 ,  C10M2209/043 ,  C10M2215/14 ,  C10N2220/302 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2240/30

Abstract: A refrigeration apparatus includes a compressor, a condenser, an expansion mechanism, and an evaporator. A refrigerant containing R32 and refrigerator oil are used in the refrigeration apparatus. The refrigerator oil is used to lubricate the compressor. An acid scavenger added in an amount of 1.0 wt % to 5.0 wt % is blended in the refrigerator oil. The amount of air mixed into the refrigeration apparatus is controlled to 500 ppm or less relative to the amount of filled refrigerant. The amount of water mixed into the refrigeration apparatus is controlled to 300 ppm or less relative to the amount of filled refrigerant. A discharged-gas temperature of the refrigeration apparatus is controlled to 120° C. or less.

Abstract translation: 制冷装置包括压缩机，冷凝器，膨胀机构和蒸发器。 在制冷装置中使用含有R32和冷冻机油的制冷剂。 冷冻机油用于润滑压缩机。 加入1.0重量％至5.0重量％的酸清除剂混合在冷冻机油中。 混合到制冷装置中的空气量相对于填充的制冷剂的量控制在500ppm以下。 混合到制冷装置中的水的量相对于填充的制冷剂的量控制在300ppm以下。 制冷装置的排气温度控制在120℃以下。