[특허]Heat pump system with hot water defrost

Heat pump system with hot water defrost 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-013/00
출원번호	US-0094266 (1987-09-08)
발명자 / 주소	Dudley Kevin F. (Cazenovia NY)
출원인 / 주소	Electric Power Research Institute, Inc. (Palo Alto CA 02)
인용정보	피인용 횟수 : 26 인용 특허 : 0

초록 ▼

An integrated heat pump and hot water system including a water to refrigerant heat exchanger having a refrigerant evaporating circuit and a refrigerant condensing circuit that are in heat transfer relation with the water circuit. A bi-flow expansion valve with a positive shut off feature is mounted in the refrigerant liquid line connecting the indoor and outdoor coil of the heat pump. The refrigerant evaporator circuit is connected between the inlet of the compressor and the liquid line by an evaporator line that enters the liquid line between the bi-flow expansion valve and the outdoor coil. A solenoid actuated metering valve is placed in the evaporator line to control the flow of refrigerant passing through the evaporator circuit. The condensing circuit of the heat exchanger is connected directly to the discharge line of the compressor so that the refrigerant discharged from the compressor passes through the condensing circuit. By simply cycling the expansion valve and the metering valve a number of operational modes may be selected whether or not the heat pump is conditioning comfort zone air.

대표청구항 ▼

An integrated heat pump and hot water system that includes, a heat pump having an indoor heat exchanger unit and an outdoor heat exchanger unit that are selectively connected to a compressor inlet and a compressor outlet by a flow reversing means and to each other by a refrigerant liquid line containing a bi-flow expansion valve for metering refrigerant moving in either direction through the liquid line, said bi-flow expansion valve having a positive shut off means to prevent refrigerant from flowing therethrough, a refrigerant to water heat exchanger having a water flow circuit that is in heat transfer relation with a first refrigerant condensing circuit and a second refrigerant evaporating circuit, said refrigerant condensing circuit being connected into a discharge line connecting the outlet of the compressor to the reversing means whereby all refrigerant discharged by the compressor passes through said condensing circuit, said refrigerant evaporating circuit being connected at one end to the inlet of the compressor and at the other end to an evaporator line that is operatively joined to the liquid line at a point between the bi-flow expansion valve and the outdoor heat exchanger, a metering valve in the evaporator line that is selectively movable between a first closed position whereby refrigerant is prevented from moving through the evaporator line and an open position whereby refrigerant is throttled from the liquid line into the evaporator circuit, and control means for cycling the metering valve and the bi-flow expansion valve.

이 특허를 인용한 특허 (26)

Jang,Sae Dong; Hwang,Il Nahm; Song,Jin Seob; Park,Bong Soo; Yang,Dong Jun; Jeong,Ho Jong, Air conditioner and outdoor unit therefor.
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Yoshihara Hirofumi,JPX ; Oohashi Hideyuki,JPX ; Nagura Katsuyuki,JPX, Air conditioning apparatus and method for air conditioning.
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Lee, Soon Jo; Kwon, Ho Cheol; Kim, Beom Jun; Kim, Hyun Soo; Song, Hack Chai; Lee, Kwang Young; Kim, Eun Suk, Defrosting method of drum-type washing machine.
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Luo,Ran; Owen,Kenneth W., Electrically controlled defrost and expansion valve apparatus.
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Babb, Jeremy Lee; McKim, Paul D., Endothermic base-mounted heat pump water heater.
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Babb, Jeremy Lee; McKim, Paul D., Endothermic base-mounted heat pump water heater.
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Wong, Lee Wa, Energy efficient air heating, air conditioning and water heating system.
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Wong, Lee Wa, Energy efficient air heating, air conditioning and water heating system.
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Harmon,Steve; You,Ying, Energy efficient heat pump systems for water heating and air conditioning.
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Prosl Frank R. ; Megerman Joseph ; Estabrook Brian K., Flow reversing device for hemodialysis.
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Ekern, Mark, Heat pump defrost system.
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Ko, Younghwan; Park, Sangkyoung; Jang, Yonghee; Kim, Bumsuk, Heat pump including at least two refrigerant injection flow paths into a scroll compressor.
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Murakami, Toshio; Tesche, Carlos A.; Fernandez, Roberto G., Heat pump system having auxiliary water heating and heat exchanger bypass.
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Murakami, Toshio; Tesche, Carlos A.; Fernandez, Roberto G., Heat pump system with auxiliary water heating.
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Li, Haijun; Wang, Weijuan; Shen, Guangyu, Heat pump system, heat pump unit using the same, and method for controlling multiple functional modes thereof.
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Kleman, Kelvin W.; Bergt, Carl; Koivisto, Randy R., Heat pump water heater and associated control system.
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Ramirez, Luis Carlos Gabino Barrera; Alvite, Joseph; Friedline, Dwight Vaughn, Hot liquid wash defrosting methods and systems.
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Noro, Shinya; Sakakibara, Hisayoshi; Kobayakawa, Tomoaki; Kusakari, Kazutoshi; Saikawa, Michiyuki, Hot water supply system with heat pump cycle.
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Ookoshi,Seiji; Tanabe,Tomoaki; Sato,Masaaki; Hori,Masato; Yamazaki,Yoshiteru, Hot-water supply apparatus.
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Goel, Rakesh; Berg, Eric; Olsen, Mark; Burmania, Ian, Liquid line charge compensator.
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Murakami, Toshio; Tesche, Carlos A.; Fernandez, Roberto G., Refrigerant charge control in a heat pump system with water heater.
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Chen, Jie; Hampton, Justin W., Refrigerant charge management in a heat pump water heater.
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Chen, Jie; Hampton, Justin W., Refrigerant charge management in a heat pump water heater.
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Cowans, Kenneth W.; Cowans, William W.; Zubillaga, Glenn, Temperature control system and method TDSF plus.
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Friday, Jr., Arthur F.; Pietrowicz, Thomas C., Uninterruptable power supply for water pump.
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Robinson ; Jr. Glen P. (1050 Mt. Paran Rd. ; SW. Atlanta GA 30327), Variable water flow control for heat pump water heaters.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Heat pump system with hot water defrost 원문보기

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이 특허를 인용한 특허 (26)

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Heat pump system with hot water defrost 원문보기

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이 특허를 인용한 특허 (26)

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