公开(公告)号：US20210262700A1

公开(公告)日：2021-08-26

申请号：US17239858

申请日：2021-04-26

Applicant: AGC Inc.

Inventor： Hikaru ONO ,  Katsuya Ueno ,  Tetsuo Otsuka

IPC: F25B9/00 ,  C09K5/04 ,  F25B1/00

Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.

公开(公告)号：US20190257553A1

公开(公告)日：2019-08-22

申请号：US16292371

申请日：2019-03-05

Applicant: AGC Inc.

Inventor： Hikaru ONO ,  Katsuya Ueno ,  Tetsuo Otsuka

IPC: F25B9/00 ,  C09K5/04

Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.

公开(公告)号：US11686506B2

公开(公告)日：2023-06-27

申请号：US17239858

申请日：2021-04-26

Applicant: AGC Inc.

Inventor： Hikaru Ono ,  Katsuya Ueno ,  Tetsuo Otsuka

IPC: F25B9/00 ,  C09K5/04 ,  F25B1/00

CPC classification number: F25B9/002 ,  C09K5/04 ,  C09K5/045 ,  F25B1/00 ,  C09K2205/122 ,  C09K2205/126 ,  C09K2205/22 ,  C09K2205/40 ,  Y02P20/10

Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.

公开(公告)号：US11015840B2

公开(公告)日：2021-05-25

申请号：US16292371

申请日：2019-03-05

Applicant: AGC Inc.

Inventor： Hikaru Ono ,  Katsuya Ueno ,  Tetsuo Otsuka

IPC: F25B9/00 ,  C09K5/04 ,  F25B1/00

Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.

公开(公告)号：US10418876B2

公开(公告)日：2019-09-17

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 ,  F04B39/00 ,  F04B39/12 ,  F04B49/10 ,  F04C29/00 ,  F04C29/02 ,  H02K5/22 ,  H02K7/14 ,  F04C18/02 ,  F25B31/02

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.

公开(公告)号：US10830518B2

公开(公告)日：2020-11-10

申请号：US16569440

申请日：2019-09-12

Applicant: AGC Inc.

Inventor： Katsuya Ueno ,  Hidekazu Okamoto ,  Shigeo Kajitani ,  Tetsuo Otsuka ,  Masamichi Ipponmatsu

IPC: F25B49/02 ,  C09K5/04 ,  F04B49/10 ,  F25B1/00

Abstract: A heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system, having a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor via a condenser, an expansion valve and an evaporator to the compressor, wherein the compressor has in its electrical circuit a current-limiting apparatus capable of limiting the current within 6 milliseconds after the heat cycle system enters into an abnormal operation state.

公开(公告)号：US10787597B2

公开(公告)日：2020-09-29

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.