公开(公告)号：US20200041174A1

公开(公告)日：2020-02-06

申请号：US16601753

申请日：2019-10-15

Applicant: AGC Inc.

Inventor： Hisao WAKABAYASHI ,  Hirokazu TAKAGI

IPC: F25B13/00 ,  F25B49/02

Abstract: The heat cycle system of the present invention is a heat cycle system which employs a working fluid containing trifluoroethylene, comprising a compressor, a condenser, an expansion valve and an evaporator, and further having a circulation flow path and a fragile part. The circulation flow path connects the compressor, the condenser, the expansion valve and the evaporator and circulates the working fluid. The fragile part is provided in the circulation flow path or to the condenser and has a pressure resistance strength lower than the pressure resistance strength of the circulation flow path and the condenser.

公开(公告)号：US20190186799A1

公开(公告)日：2019-06-20

申请号：US16285257

申请日：2019-02-26

Applicant: AGC Inc.

Inventor： Hiroki HAYAMIZU ,  Masato FUKUSHIMA ,  Hirokazu TAKAGI

IPC: F25B49/00 ,  F16L55/24 ,  F25B41/00

CPC classification number: F25B49/005 ,  C09K5/04 ,  C09K5/045 ,  C09K2205/126 ,  F16L55/24 ,  F25B1/00 ,  F25B41/003 ,  F25B49/02 ,  F25B2347/00 ,  F25B2500/04 ,  Y02P20/124

Abstract: A heat cycle system is a heat cycle system (1) using a working medium containing hydrofluoroolefin (HFO) that has a double bond in a molecule structure, the heat cycle system (1) having a compressor (10), a high-pressure side heat exchanger (12), a low-pressure side heat exchanger (14), an expansion mechanism (13), and an acid detection means (40) which is disposed in a discharge pipe (21) connecting the compressor (10) and the high-pressure side heat exchanger (12) and which detects acid generated by decomposition of the working medium in a heat cycle.

公开(公告)号：US20200079985A1

公开(公告)日：2020-03-12

申请号：US16683872

申请日：2019-11-14

Applicant: AGC Inc. ,  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Hidekazu OKAMOTO ,  Hiroki HAYAMIZU ,  Katsuya UENO ,  Hirokazu TAKAGI ,  Masato FUKUSHIMA ,  Kenji TAKIZAWA

IPC: C09K5/04

Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by −100×{(measured maximum burning velocity)−(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.

公开(公告)号：US20210053896A1

公开(公告)日：2021-02-25

申请号：US17092385

申请日：2020-11-09

Applicant: AGC Inc.

Inventor： Takuya IWASE ,  Satoshi KAWAGUCHI ,  Hirokazu TAKAGI

IPC: C07C21/18 ,  C07C17/389

Abstract: To produce, from a composition containing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene and a substance that may cause problems in reliability and performance, 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene in which the content of the substance has been reduced. This method for producing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene comprises bringing a composition containing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene and at least one substance selected from the group consisting of water, 3,3,4,4,5,5-hexafluoro-1-pentyne, 1-chloro-3,3,4,4,5,5-hexafluoro-1-pentyne and an oxide, into contact with a solid adsorbent, to remove the substance from the composition.

公开(公告)号：US20190161661A1

公开(公告)日：2019-05-30

申请号：US16259342

申请日：2019-01-28

Applicant: AGC Inc.

Inventor： Mai TASAKA ,  Hirokazu TAKAGI ,  Masato FUKUSHIMA ,  Toshiyuki TANAKA

IPC: C09K5/04

Abstract: There is provided a working fluid for heat cycle that uses (Z)-1-chloro-2,3,3,3-tetrafluoropropane (HCFO-1224yd(Z)) which has a less impact on the ozone layer, has a less impact on global warming, and has excellent cycle performance, the working fluid for heat cycle having sufficiently ensured stability and having high productivity. The working fluid for heat cycle contains HCFO-1224yd(Z) and an impurity, wherein the impurity includes a specific trace component, and a total content ratio of the trace component to a total amount of the working fluid is less than 1.5 mass %.

公开(公告)号：US20190031934A1

公开(公告)日：2019-01-31

申请号：US16152669

申请日：2018-10-05

Applicant: AGC Inc.

Inventor： Masato FUKUSHIMA ,  Hiroaki MITSUOKA ,  Mai TASAKA ,  Satoshi KAWAGUCHI ,  Katsuya UENO ,  Toshiyuki TANAKA ,  Hidekazu OKAMOTO ,  Tetsuo OTSUKA ,  Yoshinobu KADOWAKI ,  Tatsuhiro NOGAMI ,  Daisuke SHIRAKAWA ,  Hirokazu TAKAGI ,  Takeaki ARAI

IPC: C09K5/04

Abstract: A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.100; the lower limit of the combustion range by method A in High Pressure Gas Safety Act is at least 5 vol %; and the pressure will not exceed 2.00 MPaG in a combustion test by method A in High Pressure Gas Safety act under 0.98 MPaG at 250° C.

公开(公告)号：US20180363965A1

公开(公告)日：2018-12-20

申请号：US16110694

申请日：2018-08-23

Applicant: AGC INC.

Inventor： Hiroki HAYAMIZU ,  Masato FUKUSHIMA ,  Hirokazu TAKAGI

IPC: F25B49/02 ,  F25B43/00

Abstract: A refrigeration cycle apparatus includes a circulation path in which a working fluid containing 1,1,2-trifluoroethylene is circulated from a compressor through a condenser, an expansion valve and an evaporator back to the compressor. The refrigeration cycle apparatus includes a composition change detection unit, a composition adjustment unit, and a control unit. The composition change detection unit detects a change of a composition of the working fluid from a steady composition thereof. The composition adjustment unit adjusts the composition of the working fluid. The control unit controls the composition adjustment unit based on a detection result obtained by the composition change detection unit.

公开(公告)号：US20180358861A1

公开(公告)日：2018-12-13

申请号：US16106306

申请日：2018-08-21

Applicant: AGC Inc.

Inventor： Hiroki HAYAMIZU ,  Masato FUKUSHIMA ,  Hirokazu TAKAGI ,  Tetsuo OTSUKA

IPC: H02K5/136 ,  F04C29/02 ,  F04C29/00 ,  H02K5/22 ,  H02K7/14

CPC classification number: H02K5/136 ,  F04B39/00 ,  F04B39/12 ,  F04B49/10 ,  F04C18/0215 ,  F04C29/0085 ,  F04C29/02 ,  F04C2210/263 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/809 ,  F04C2270/70 ,  F25B31/026 ,  F25B2400/12 ,  F25B2500/06 ,  H02K5/225 ,  H02K7/14

Abstract: A compressor includes a sealed container, a compression part provided in an upper part of the inside of the sealed container and configured to compress a working medium, an oil reservoir part provided in a bottom part of the inside of the sealed container and configured to reserve a lubricating oil therein, an electric drive part provided between the compression part and the oil reservoir part inside the sealed container and configured to drive the compression part, and a power source terminal provided to pass through a wall surface of the sealed container in a region of the oil reservoir part. The power source terminal is connectable to an external power source outside the sealed container and electrically connected to the electric drive part via a lead wire in the sealed container.