-
公开(公告)号：US10557654B2
公开(公告)日：2020-02-11
申请号：US16239776
申请日：2019-01-04
Inventor： Kazunori Fukuda , Koji Naito , Kazuhiro Tsuchihashi
Abstract: An collective device for switching refrigerant flow arranged between an indoor device and an outdoor device is provided; which includes multiple high-pressure valves; multiple low-pressure valves; a high-pressure header; a low-pressure header; a high-pressure gas pipe connecting each high-pressure valve and the high-pressure header; and a low-pressure gas pipe connecting each low-pressure valve and the low-pressure header, wherein the multiple high-pressure valves are arranged next to each other in a first direction perpendicular to a vertical direction, the multiple low-pressure valves are arranged next to each other in the first direction, and the low-pressure valves, the low-pressure header, and the low-pressure gas pipe are arranged on one side in a second direction perpendicular to the vertical direction and the first direction with respect to the high-pressure valves, the high-pressure header, and the high-pressure gas pipe.
-
公开(公告)号：US20200309403A1
公开(公告)日：2020-10-01
申请号：US16370051
申请日：2019-03-29
Inventor： Koji Naito , Robert D. Turney , Liming Yang , Yasutaka Yoshida
IPC: F24F11/871 , F24F11/47 , F24F11/64 , F24F3/044
Abstract: A refrigeration cycle, an air conditioning system, and a method for controlling a refrigeration cycle are provided. The refrigeration cycle includes an outdoor unit, an indoor unit, a controller, and an inverter. The controller controls a compressor and an outdoor fan of the air conditioning system so as to minimize a total electric power consumption of the air conditioning system. The inverter controls the outdoor fan in a rotation state predicted from a capacity demand in an air conditioning space depending on an operation mode and sensor values. The controller predicts the capacity demand and controls a rotation rate of the outdoor fan based on a prediction of the capacity demand.
-
公开(公告)号：US10662934B2
公开(公告)日：2020-05-26
申请号：US16223323
申请日：2018-12-18
Inventor： Ryou Oota , Hiroyuki Akata , Yasutaka Yoshida , Koji Naito , Hideyuki Ueda
IPC: F04B39/02 , C09K5/04 , F04C29/04 , F04C29/02 , C10M107/24 , C10M129/18 , C10M137/04 , F25B1/04 , C10M171/00 , F04C18/02 , F04B39/00 , F04B35/04 , C10M129/72
Abstract: An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil.
-
4.发明授权公开(公告)号：US10415842B2
公开(公告)日：2019-09-17
申请号：US15768667
申请日：2017-11-08
Inventor： Katsuaki Nagahashi , Koji Naito , Hayato Mori
IPC: F25B47/02 , F24F11/38 , F24F11/42 , F24F11/32 , F24F11/52 , F24F11/62 , F24F11/54 , F24F1/06 , F24F1/38
Abstract: Provided is an outdoor unit for an air conditioner and the like that provide notification of whether maintenance is needed for an outdoor heat exchange unit in appropriate timing. The outdoor unit for the air conditioner includes: a compressor; an outdoor heat exchange unit through which a refrigerant flows by driving of the compressor; an outdoor fan that includes an outdoor fan motor and is installed near the outdoor heat exchange unit; and a control unit that provides notification of whether maintenance is needed for the outdoor heat exchange unit based on an airflow resistance during an outdoor air-sending operation in which the outdoor fan is driven to send outdoor air into the outdoor heat exchange unit while the compressor is stopped. This makes it possible to provide the notification of whether the maintenance is needed for the outdoor heat exchange unit in appropriate timing.
-
公开(公告)号：US10989432B2
公开(公告)日：2021-04-27
申请号：US16370051
申请日：2019-03-29
Inventor： Koji Naito , Robert D. Turney , Liming Yang , Yasutaka Yoshida
IPC: F24F11/871 , F24F11/47 , F24F3/044 , F24F11/64 , F24F140/60 , F24F110/10
Abstract: A refrigeration cycle, an air conditioning system, and a method for controlling a refrigeration cycle are provided. The refrigeration cycle includes an outdoor unit, an indoor unit, a controller, and an inverter. The controller controls a compressor and an outdoor fan of the air conditioning system so as to minimize a total electric power consumption of the air conditioning system. The inverter controls the outdoor fan in a rotation state predicted from a capacity demand in an air conditioning space depending on an operation mode and sensor values. The controller predicts the capacity demand and controls a rotation rate of the outdoor fan based on a prediction of the capacity demand.
-
Patent Agency Ranking
公开(公告)号：US10907902B2
公开(公告)日：2021-02-02
申请号：US15758416
申请日：2015-09-10
Inventor： Mikihito Tokudi , Koji Naito , Kazumoto Urata , Kenji Matsumura , Kazuhiko Tani , Masayoshi Murofushi , Takumi Kamiaka
Abstract: A heat exchanger includes: a gas-side port connected to piping for a gaseous refrigerant; a liquid-side port connected to piping for a liquid refrigerant; a refrigerant path that links the gas-side port to the liquid-side port; at least four heat exchange part regions that perform heat exchange between air and the refrigerant flowing through the refrigerant path; and a branching and merging part that branches and merges the refrigerant path to connect the heat exchange part regions in series between the gas-side port and the liquid-side port through the refrigerant path. The heat exchange part regions are connected to each other through the branching and merging part so as to allow the number of refrigerant paths provided in the heat exchange part region near the gas-side port to be greater than the number of refrigerant paths provided in the heat exchange part region near the liquid-side port.
-
公开(公告)号：US20200284458A1
公开(公告)日：2020-09-10
申请号：US16294433
申请日：2019-03-06
Inventor： Yasutaka Yoshida , Koji Naito , Hayato Mori , Robert D. Turney , Mohammad N. ELBsat , Michael J. Wenzel
Abstract: An air conditioner controller for an air conditioner is configured to obtain a first value of a performance value from a predetermined component of the air conditioner, and estimate a total cost. The controller is configured to estimate the total cost including an operation cost and a renewal cost of the air conditioner based on the first value of the performance variable obtained from the predetermined component of the air conditioner and a second value of the performance variable estimated by an operational model of the air conditioner. The total cost is a total cost of operating and renewing the air conditioner for a time period after a time at which the first value of the performance variable is obtained. The controller is configured to output the total cost via a user interface.
-
公开(公告)号：US11041667B2
公开(公告)日：2021-06-22
申请号：US16360189
申请日：2019-03-21
Inventor： Atsuhiko Yokozeki , Koji Naito , Kazuhito Sekiba , Shoutaro Yamamoto , Hiroaki Kaneko , Kazuhiko Tani
Abstract: To achieve higher efficiency at a low-load region and to enable power saving throughout a year. The refrigeration cycle apparatus 1 includes a compressor 4 that has a flow in/out port 4d through which a refrigerant is capable of flowing out and flowing in, in fluid communication with a compression room 4c; pipes 21, 22 disposed at a suction side of the compressor 4; a pipe 25 connected to the flow in/out port 4d of the compressor 4; a pipe 27 that has one end connected to the pipe 25 and an opposite end connected to the pipe 21; and a second solenoid valve 13 for opening and closing a fluid passage of the pipe 27.
-
公开(公告)号：US10962251B2
公开(公告)日：2021-03-30
申请号：US16294433
申请日：2019-03-06
Inventor： Yasutaka Yoshida , Koji Naito , Hayato Mori , Robert D. Turney , Mohammad N. ElBsat , Michael J. Wenzel
IPC: F24F11/47 , F24F11/63 , F24F140/60
Abstract: An air conditioner controller for an air conditioner is configured to obtain a first value of a performance value from a predetermined component of the air conditioner, and estimate a total cost. The controller is configured to estimate the total cost including an operation cost and a renewal cost of the air conditioner based on the first value of the performance variable obtained from the predetermined component of the air conditioner and a second value of the performance variable estimated by an operational model of the air conditioner. The total cost is a total cost of operating and renewing the air conditioner for a time period after a time at which the first value of the performance variable is obtained. The controller is configured to output the total cost via a user interface.
-
10.发明授权公开(公告)号：US10570323B2
公开(公告)日：2020-02-25
申请号：US16360173
申请日：2019-03-21
Inventor： Ryo Ota , Koji Naito , Yasutaka Yoshida
Abstract: Provided is a refrigerant composition as a mixed refrigerant containing refrigerant components of difluoromethane (HFC32), pentafluoroethane (HFC125), and hexafluoropropene (FO1216). The makeup of the refrigerant components in the mixed refrigerant is configured such that a global warming potential (GWP) is 750 or less, a vapor pressure at 25° C. is in a range of 1.4 to 1.8 MPa, and a flame retardant parameter Fmix represented by formula (1) below is 0.46 or more. Fmix=ΣiFixi (1) Here, Fmix indicates a flame retardant parameter of the refrigerant composition, Fi indicates a flame retardant parameter of each of the refrigerant components, and xi indicates a molar fraction of each of the refrigerant components.
-
-
-
-
-
-
-
-
-
Search Results
14
records
(took 0.019 seconds)
