최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0244967 (2014-04-04) |
등록번호 | US-9765979 (2017-09-19) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 2 인용 특허 : 1177 |
A heat-pump circuit may include an indoor heat exchanger, an outdoor heat exchanger, a compressor adapted to circulate a working fluid between the indoor and outdoor heat exchangers, and an expansion device disposed between the indoor and outdoor heat exchangers. A monitor for the heat-pump system m
A heat-pump circuit may include an indoor heat exchanger, an outdoor heat exchanger, a compressor adapted to circulate a working fluid between the indoor and outdoor heat exchangers, and an expansion device disposed between the indoor and outdoor heat exchangers. A monitor for the heat-pump system may include a return-air temperature sensor, a supply-air temperature sensor, and a processor. The return-air temperature sensor may be adapted to measure a first air temperature of air upstream of the indoor heat exchanger. The supply-air temperature sensor may be adapted to measure a second air temperature of air downstream of the indoor heat exchanger. The processor may be in communication with the return-air temperature sensor and the supply-air temperature sensor. The processor may be programmed to determine a working-fluid-charge condition of the heat-pump system based on the first and second air temperatures.
1. An apparatus for a heat-pump circuit having indoor and outdoor heat exchangers, a compressor circulating a working fluid between the indoor and outdoor heat exchangers, and an expansion device between the indoor and outdoor heat exchangers, the apparatus comprising: a return-air temperature senso
1. An apparatus for a heat-pump circuit having indoor and outdoor heat exchangers, a compressor circulating a working fluid between the indoor and outdoor heat exchangers, and an expansion device between the indoor and outdoor heat exchangers, the apparatus comprising: a return-air temperature sensor adapted to measure a first air temperature of air upstream of the indoor heat exchanger;a supply-air temperature sensor adapted to measure a second air temperature of air downstream of the indoor heat exchanger;a working-fluid temperature sensor disposed between the expansion device and the indoor heat exchanger and adapted to measure a working-fluid temperature of working fluid flowing between the indoor heat exchanger and the expansion device when the heat-pump system is operating in a heating mode; anda processor in communication with the return-air temperature sensor, the supply-air temperature sensor and the working-fluid temperature sensor, the processor configured to determine a first difference between the second air temperature and the working-fluid temperature, a second difference between the second air temperature and the first air temperature, and a third difference between the working-fluid temperature and the first air temperature, the processor configured to determine a working-fluid-charge condition of the heat-pump system based on a first comparison of the first difference with a first predetermined value and one of: a second comparison of the second difference with a second predetermined value and a third comparison of the third difference with a third predetermined value. 2. The apparatus of claim 1, wherein the processor is in communication with a notification device configured to generate a first alert indicating that a fault condition of the heat-pump system is related to the working-fluid-charge condition and a second alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system. 3. The apparatus of claim 2, wherein the processor is a cloud-based processor and the notification device includes a mobile, wireless computing device. 4. The apparatus of claim 1, wherein the processor is in communication with a notification device configured to generate an alert indicating the working-fluid-charge condition. 5. The apparatus of claim 1, wherein the processor is a cloud-based processor disposed remotely from the compressor, the return-air temperature sensor and the supply-air temperature sensor. 6. A working-fluid circuit having a processor in communication with a return-air temperature sensor adapted to measure a first air temperature of air upstream of an indoor heat exchanger, a supply-air temperature sensor adapted to measure a second air temperature of air downstream of the indoor heat exchanger and a working-fluid temperature sensor, a compressor circulating a working fluid between the indoor heat exchanger and an outdoor heat exchanger, and an expansion device between the indoor and outdoor heat exchangers, the working-fluid temperature sensor disposed between the expansion device and the indoor heat exchanger and adapted to measure a working-fluid temperature of working fluid flowing between the indoor heat exchanger and the expansion device when the heat-pump system is operating in a heating mode, the processor configured to determine a first difference between the second air temperature and the working-fluid temperature and a second difference between the second air temperature and the first air temperature, the processor configured to determine a working-fluid-charge condition of the heat-pump system based on a first comparison of the first difference with a first predetermined value and a second comparison of the second difference with a second predetermined value. 7. The working-fluid circuit of claim 6, wherein the processor is in communication with a notification device configured to generate a first alert indicating that a fault condition of the heat-pump system is related to the working-fluid-charge condition and a second alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system. 8. The working-fluid circuit of claim 7, wherein the processor is a cloud-based processor and the notification device includes a mobile, wireless computing device. 9. The working-fluid circuit of claim 6, wherein the processor is in communication with a notification device configured to generate an alert indicating the working-fluid-charge condition. 10. The working-fluid circuit of claim 6, wherein the processor is a cloud-based processor disposed remotely from the compressor, the return-air temperature sensor and the supply-air temperature sensor. 11. The working-fluid circuit of claim 6, wherein the processor is configured to determine the working-fluid-charge condition of the heat-pump system based on the first comparison and the second comparison if the first difference is higher than the first predetermined value. 12. The working-fluid circuit of claim 11, wherein the processor is in communication with a notification device configured to generate a first alert indicating that a fault condition of the heat-pump system is related to a working fluid overcharge condition if the second difference is higher than the second predetermined value and a second alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system if the second difference is lower than the second predetermined value. 13. The working-fluid circuit of claim 11, wherein the processor is configured to determine the working-fluid-charge condition of the heat-pump system based on the first comparison and a third comparison if the first difference is lower than the first predetermined value, wherein the third comparison is a comparison between a third predetermined value and a third difference between the working-fluid temperature and the first air temperature. 14. The working-fluid circuit of claim 13, wherein the processor is in communication with a notification device configured to generate a first alert indicating that a fault condition of the heat-pump system is related to a working fluid undercharge condition if the third difference is lower than the third predetermined value and a second alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system if the third difference is higher than the third predetermined value. 15. The apparatus of claim 1, wherein the processor is configured to determine the working-fluid-charge condition of the heat-pump system based on the first comparison and the second comparison if the first difference is higher than the first predetermined value, and wherein the processor determines the working-fluid-charge condition of the heat-pump system based on the first comparison and the third comparison if the first difference is lower than the first predetermined value. 16. The apparatus of claim 15, wherein the processor is in communication with a notification device configured to generate a first alert indicating that a fault condition of the heat-pump system is related to a working fluid overcharge condition if the second difference is higher than the second predetermined value and a second alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system if the second difference is lower than the second predetermined value. 17. The apparatus of claim 16, wherein the notification device is configured to generate a third alert indicating that the fault condition of the heat-pump system is related to a working fluid undercharge condition if the third difference is lower than the third predetermined value and a fourth alert indicating that the fault condition of the heat-pump system is unrelated to an amount of working fluid in the heat-pump system if the third difference is higher than the third predetermined value.
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