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1.发明公开公开(公告)号：US20240353158A1
公开(公告)日：2024-10-24
申请号：US18574909
申请日：2022-05-26
发明人： Hao PAN , Dan XIONG , Xiaoliang TANG , Jun YOU , Qiang KANG , Xiaofei SONG
CPC分类号： F25B41/20 , F25B47/02 , F25B49/022 , F25B2400/23 , F25B2600/2501
摘要： A hot water system with transcritical carbon dioxide single-stage or double-stage compression and a control method therefor is provided. The hot water system includes a first-stage compressor, a first heat exchanger for exchanging heat with cooling water on user side, a second-stage compressor, a second heat exchanger for exchanging heat with the cooling water on user side, a third heat exchanger for exchanging heat between a liquid phase refrigerant and a gas phase refrigerant, an expansion valve, a fourth heat exchanger for exchanging heat with ambient air, a buffer water tank, a first proportional valve, a second proportional valve, a third proportional valve, a fourth proportional valve, a defrosting valve, and a refrigerant circuit bypass valve. The hot water system can switch between the single-stage compression ad the double-stage compression in high-temperature and low-temperature weather, ensuring that the system has good heating capacity and energy efficiency ratio.
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公开(公告)号：US12123623B1
公开(公告)日：2024-10-22
申请号：US17193695
申请日：2021-03-05
发明人： Stewart Kaiser
CPC分类号： F24H15/25 , F24D5/04 , F24D12/02 , F24H3/065 , F24H3/12 , F25B29/00 , F25B47/02 , F24D2200/04 , F24D2200/18 , F24D2200/22 , F24D2220/06 , F25B2700/11
摘要： A heat recovery system includes a compressor, a solar panel, and a first heat exchanger and a second heat exchanger in fluid connection to form a closed circuit. The compressor is configured to facilitate fluid movement in the fluid circuit between the solar panel, the first heat exchanger and the second heat exchanger. The solar panel includes a plurality of solar cells connected in parallel, and each solar cell includes a plurality of metal tubes for fluid to pass through. A temperature sensor is mounted within each of the solar cells and configured to measure temperature inside the respective solar cell. Each solar cell is connected to the circuit via a respective pressure valve, and the status of the pressure valve is configured to depend on the measurement of the temperature sensor in the respective solar cell.
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公开(公告)号：US20240344748A1
公开(公告)日：2024-10-17
申请号：US18632612
申请日：2024-04-11
申请人： Carrier Corporation
发明人： Sascha Hellman
CPC分类号： F25B49/025 , F25B47/02 , F25B2500/12 , F25B2600/112
摘要： A system and method for operating a plurality of evaporator units is disclosed. The method includes receiving, by a controller communicably coupled to each evaporator unit, a current state of operation of the respective evaporator unit. A state of operation of each evaporator unit includes first and second modes of operation. The method includes receiving, by the controller, a current speed of a fan of the respective evaporator unit. Responsive to the state of operation of the plurality of evaporator units, the method further includes operating, by the controller, each of the plurality of evaporator units, to change the speed of the respective fans from a first speed to a speed different from the first speed. Operation of the fans of the plurality of evaporator units at the speed different from the first speed enables the plurality of evaporator units to operate within a desirable range of cooling efficiency.
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公开(公告)号：US20240280302A1
公开(公告)日：2024-08-22
申请号：US18442728
申请日：2024-02-15
发明人： Nathan Paul BURNS , Abram Andrew YORDE , Emma Renee Allen , Gregory Scott MICKELSON , Mohammed MAKBOUL , Francois AUCOIN , Mitchell R. BOLIN
IPC分类号： F25B47/02
CPC分类号： F25B47/02 , F25B2700/2117
摘要： Exemplary embodiments are disclosed of methods and controllers configured to be operable for on demand initiation of a defrost cycle, e.g., demand defrost when necessary as opposed to automatically initiating defrost cycles according to a predetermined scheduled frequency of a set amount of defrost cycles per day.
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公开(公告)号：US20240210083A1
公开(公告)日：2024-06-27
申请号：US18544994
申请日：2023-12-19
申请人： Carrier Corporation
IPC分类号： F25B47/02
CPC分类号： F25B47/02 , F25B2700/11
摘要： A system and method for predicting ice gradient in refrigeration units is disclosed, comprising steps of capturing data pertaining to parameters of the refrigeration units, correlating the received parameters to generate characteristic features indicative of behaviour and performance of the one or more refrigeration units, generating events based on the generated characteristic features, identifying a frosting pattern associated with the refrigeration units by analyzing the generated events, determining a quantum of icing and a rate of ice formation in the refrigeration units based on the identified frosting pattern, and predicting ice gradient associated with the refrigeration units based on the determined quantum of icing and the rate of ice formation.
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公开(公告)号：US11959674B2
公开(公告)日：2024-04-16
申请号：US16757871
申请日：2018-09-28
发明人： Kiichirou Satou
CPC分类号： F25B47/02 , F25D13/02 , F25D21/06 , F25B2600/02
摘要： A refrigeration system including a storage in which multiple containers are joined and each include a refrigeration apparatus includes a first communication unit, a second communication unit, and a third communication unit that perform communication so that the refrigeration apparatuses of the containers operate in synchronization with each other.
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公开(公告)号：US11927381B2
公开(公告)日：2024-03-12
申请号：US16961005
申请日：2018-01-26
发明人： Yusuke Tashiro , Yasuhide Hayamaru , Masakazu Kondo , Masakazu Sato , Naoki Nakagawa , Atsushi Kawashima
CPC分类号： F25B5/02 , F25B41/20 , F25B47/02 , F25B2300/00 , F25B2347/021
摘要： When a controller performs a defrosting operation in which frost on an outdoor heat exchanger is caused to be melted, the controller is configured to perform a first defrosting control in which a switching state of a switching device is set to a first state, after the controller performs the first defrosting control, perform a second defrosting control in which the switching state of the switching device is set to a second state, and after the controller performs the second defrosting control, perform a third defrosting control in which the switching state of the switching device is set to the first state.
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公开(公告)号：US20240077236A1
公开(公告)日：2024-03-07
申请号：US18261900
申请日：2021-05-31
申请人： AIRCODUE S.R.L.
摘要： A reverse cycle steam compression thermal machine is described, concerning a main circuit (100) connected to an auxiliary circuit (200), comprising an economizer (3), the main circuit (100) comprising a first high pressure exchanger (2) and an evaporator (5), the auxiliary circuit (200) comprising a second high pressure exchanger (7a) and a second expander (8); the economizer (3) includes a first hot branch (1c), a first cold branch (1f), a second hot branch (2c) and a second cold branch (2f).
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公开(公告)号：US20240053071A1
公开(公告)日：2024-02-15
申请号：US18259097
申请日：2021-02-19
摘要： A refrigerant circuit includes a compressor, an outdoor heat exchanger, a throttle device, an indoor heat exchanger, and a four-way valve, and it is configured such that refrigerant circulates therethrough. An inverter is configured to control the compressor as being variable in speed. The refrigerant circuit is configured to perform a defrosting operation in which refrigerant discharged from the compressor is introduced into the outdoor heat exchanger. The compressor includes a motor. The inverter has, as an operation mode, a speed control mode in which the motor is controlled such that a rotation speed thereof is closer to a rotation speed corresponding to a command value and an output control mode in which the rotation speed of the motor is controlled such that output from the motor is closer to a target value. The inverter is configured to operate by using the output control mode in the defrosting operation.
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公开(公告)号：US11813921B2
公开(公告)日：2023-11-14
申请号：US17202086
申请日：2021-03-15
CPC分类号： B60H1/00899 , B60H1/00585 , B60H1/00735 , F25B30/02 , F25B47/02 , B60H2001/00961
摘要： A method for operating a heat pump of a motor vehicle that includes a compressor, an expander, an ambient heat exchanger and a heating heat exchanger. In the method, a defrost mode for defrosting the ambient heat exchanger is initiated. In the defrost mode, a refrigerant is compressed to a high pressure by the compressor to transfer thermal energy to the ambient heat exchanger, the refrigerant is expanded to a low pressure by the expander, and the refrigerant absorbs thermal energy in the heating heat exchanger. Further, a defrosting process of the ambient heat exchanger triggered by the defrost mode is monitored. The monitoring of the defrosting process includes monitoring the pressure difference between the high pressure and the low pressure and/or monitoring the pressure gradient of the pressure difference between the high pressure and the low pressure and/or monitoring the high pressure.
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