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公开(公告)号：US12123635B2
公开(公告)日：2024-10-22
申请号：US17308039
申请日：2021-05-04
CPC分类号： F25B45/00 , B60H1/00907 , F25B13/00 , F25B41/24 , F25B49/027 , B60H2001/00942 , F25B2345/001 , F25B2345/006 , F25B2400/23
摘要： An intermediate refrigerant store of a refrigerant system may include a storage container delimiting a refrigerant storage space, a first feed, and a second feed separate from the first feed. The first feed and the second feed may be fluidically connected with the refrigerant storage space for feeding of a refrigerant. At least one discharge may be fluidically connected to the refrigerant storage space and may be configured to discharge the refrigerant from the refrigerant storage space. At least one valve arrangement may be disposed in an associated feed of the first feed and the second feed via which the associated feed may be fluidically closable and openable.
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公开(公告)号：US20240102682A1
公开(公告)日：2024-03-28
申请号：US17952871
申请日：2022-09-26
申请人： Effecterra, Inc.
发明人： Evan Aschow , Michael May
CPC分类号： F24F11/63 , F24F11/30 , F25B45/00 , F25B2345/001 , F25B2345/002
摘要： A method for tracking amount of refrigerant added or removed from an HVAC/refrigeration system includes fluidly coupling a service tool with an inner volume of the refrigeration system. The service tool includes a reservoir that stores and discharges a refrigerant into the refrigeration system or receives the refrigerant from the refrigeration system, and a sensing portion positioned along a fluid flow path between the reservoir and the inner volume of the refrigeration system. The method includes operating the service tool to transfer an amount of refrigerant between the inner volume of the refrigeration system and the reservoir of the service tool. The method includes obtaining a signal from a sensor of the sensing portion indicative of a flow rate of the amount of refrigerant over a time period that the refrigerant is transferred. The method includes determining the amount of refrigerant based on the signal obtained from the sensor.
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3.发明公开公开(公告)号：US20240102677A1
公开(公告)日：2024-03-28
申请号：US17952909
申请日：2022-09-26
申请人： Google LLC
发明人： Evan Aschow , Michael May , Joel Cesare , Tony Cacace
CPC分类号： F24F11/38 , F24F11/36 , F24F11/63 , F25B45/00 , F25B2345/001
摘要： A system for predicting a leak of a HVAC/Refrigeration system includes a critically charged HVAC/Refrigeration system configured to circulate a refrigerant to cool a space, and processing circuitry. The processing circuitry is configured to obtain the subcooling data from the critically charged HVAC/Refrigeration system. The processing circuitry is configured to predict a leak event by providing the subcooling data as an input to a neural network. The neural network is trained using historical data of one or more subcooling parameters of a plurality of critically charged HVAC/Refrigeration systems. The processing circuitry is configured to operate a display to provide a notification to a technician or a manager regarding the predicted leak event at the critically charged HVAC/Refrigeration system.
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4.发明公开公开(公告)号：US20240035723A1
公开(公告)日：2024-02-01
申请号：US18483879
申请日：2023-10-10
CPC分类号： F25B45/00 , F25B49/00 , F25B2345/007 , F25B2345/001 , F25B2345/003
摘要： A method for weighing and dispensing small amounts of HC refrigerant gases for appliances such as refrigerators, room air conditioners, small ice makers, wine coolers, etc. More particularly, it relates to method of weighing and dispensing small quantities of HC, or blended HC, gas refrigerants for such refrigerated appliances. Due to the safety hazards associated with large quantities of HC refrigerant gases in an enclosed space, only small containers, holding pre-measured amounts of HC refrigerant gas, are taken into the enclosed space where the refrigerated appliance is located.
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公开(公告)号：US11808499B2
公开(公告)日：2023-11-07
申请号：US17858556
申请日：2022-07-06
CPC分类号： F25B45/00 , F25B31/002 , F25B2345/001 , F25B2345/002 , F25B2345/003 , F25B2500/16
摘要： A refrigerant replacement method for a refrigeration apparatus is intended to replace a first refrigerant charged into a refrigerant circuit of the refrigeration apparatus with a second refrigerant. The second refrigerant is used together with a refrigerating machine oil having a higher additive content by percentage than another refrigerating machine oil to be used together with the first refrigerant. The method includes: a refrigerant recovery step of recovering the first refrigerant from the refrigerant circuit; an oil charging step of additionally charging a refrigerating machine oil having a predetermined additive content by percentage into the refrigerant circuit; and a refrigerant charging step of charging the second refrigerant into the refrigerant circuit. The predetermined additive content by percentage is higher than the additive content by percentage of the refrigerating machine oil to be used together with the second refrigerant.
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公开(公告)号：US20230332813A1
公开(公告)日：2023-10-19
申请号：US18299202
申请日：2023-04-12
申请人： Testo SE & Co. KGaA
发明人： Seyit Egin , Dirk Göpfert
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/001 , F25B2345/003 , F25B2345/006
摘要： A valve controller (1) for filling a refrigerating circuit with refrigerant includes a valve (2), a temperature sensor (3), a pressure sensor (4) and a controller (5). The controller (5) is configured to calculate a parameter from the measurement data of the temperature sensor (3) and/or the pressure sensor (4), and the controller (5) is further configured to activate the valve (2) until the calculated parameter has reached a target value.
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公开(公告)号：US20230304710A1
公开(公告)日：2023-09-28
申请号：US18204715
申请日：2023-06-01
IPC分类号： F25B45/00
CPC分类号： F25B45/00 , F25B2345/001
摘要： A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
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公开(公告)号：US20190061465A1
公开(公告)日：2019-02-28
申请号：US16111936
申请日：2018-08-24
发明人： Mahendra HS
CPC分类号： B60H1/00585 , F25B45/00 , F25B2345/001 , F25B2345/005 , F25B2345/007 , F25B2500/19 , G01G13/248 , G01G17/06
摘要： An air condition service machine for charging an air conditioner with refrigerant in a fast-charge mode, the fast-charge mode controlled based upon the changing weight rate of a refrigerant tank providing the supply of refrigerant to the air conditioner. The embodiment may also include a compensation mode to provide greater accuracy of the charge after completion of the fast-charge mode. The rate of refrigerant flow is monitored and an end time as opposed to weight target ends the charge.
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公开(公告)号：US20180231286A1
公开(公告)日：2018-08-16
申请号：US15750937
申请日：2015-08-28
发明人： Masahiro ITO , Kosuke TANAKA , Takuya ITO , Yasushi OKOSHI , Kazuyuki ISHIDA
CPC分类号： F25B47/02 , F25B1/00 , F25B13/00 , F25B45/00 , F25B47/025 , F25B2313/003 , F25B2345/001 , F25B2345/002 , F25B2345/003 , F25B2400/06 , F25B2400/19 , F25B2600/21 , F25B2600/2513 , F25B2600/2523 , F25B2700/04 , F25B2700/1931 , F25B2700/1933 , F25B2700/21151
摘要： In a refrigeration cycle apparatus, a controller is configured to, when a defrost mode is started, control a first pressure reducing device is controlled to adjust a flow rate of refrigerant to bring a degree of superheat of the refrigerant at a suction side of a compressor close to a target value, control a flow path switching device to form a first flow path through which the refrigerant released from the compressor flows to a first heat exchanger; perform a refrigerant release operation of opening one of a second pressure reducing device and a valve and closing the other of the second pressure reducing device and the valve, and perform a refrigerant collection operation of opening the second pressure reducing device and the valve, with the flow path switching device retained to form the first flow path, after the refrigerant release operation.
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公开(公告)号：US20180209706A1
公开(公告)日：2018-07-26
申请号：US15648793
申请日：2017-07-13
发明人： SHENG CHIH CHIU
CPC分类号： F25B45/00 , F16K1/04 , F16K1/12 , F16K31/50 , F16L15/006 , F16L29/007 , F25B2345/001 , F25B2345/006
摘要： An ejector joint structure includes first and second connection members and an ejector. The first connection member has a head portion, a body portion, and a defined-through first channel. The first channel has a stepped portion and forms a thick section and a thin section. The body portion has a through-hole communicating with the thin section. The ejector is movably threaded in the first channel via an abutting rod. The abutting rod has a flange corresponding to the thick section and selectively abutted against the stepped portion to shield the first channel. The second connection member has a sleeve to enclose an outer periphery of the first connection member, and the second connection member is rotatable relative to the first connection member. The sleeve has a second channel communicating with the hollowed space. A sealing member is assembled between the sleeve and the body portion to seal the hollowed space.
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