[특허]Transport refrigeration system having means for achieving and maintaining increased heating capacity

Transport refrigeration system having means for achieving and maintaining increased heating capacity 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-041/00
출원번호	US-0722565 (1991-06-27)
발명자 / 주소	Brendel Thomas E. (Fayetteville NY)
출원인 / 주소	Carrier Corporation (Syracuse NY 02)
인용정보	피인용 횟수 : 21 인용 특허 : 0

초록 ▼

A transport refrigeration system of the type which holds a set point by operating in heating and cooling cycles. The system includes a compressor, a condenser and an evaporator each having inlet and outlet ports. A three-way valve receives compressed gas discharged from the compressor and directs it selectively to first and second outlets. First outlet of the three-way valve directs hot compressor gas to the condenser for operation of the system in a conventional cooling cycle. A hot gas conduit is provided which connects the second outlet of the three-way valve directly to the inlet of the evaporator. A branch line extends from the hot gas line to the line interconnecting the condenser and the evaporator, upstream of the receiver. Another refrigerant line extends from the outlet of the condenser to establish fluid communication with the line interconnecting the outlet of the evaporator with the compressor suction port. Appropriate valve means are provided in the refrigerant lines such that, when appropriately actuated, the three-way valve directs hot gas only to the receiver. The portion of the liquid line which is downstream of the receiver, the hot gas line, and the line interconnecting the condenser outlet with the compressor suction line all are placed in fluid communication with the suction side of the compressor. The compressor then serves to draw down this portion of the refrigeration system to a low pressure thereby withdrawing the refrigerant therefrom and directing it via three-way valve and a portion of the hot gas line to the receiver.

대표청구항 ▼

A transport refrigeration system which holds a set point by operating in heating and cooling cycles comprising; a compressor for compressing gaseous refrigerant delivered thereto, said compressor having a suction port and a discharge port; a condenser for passing refrigerant therethrough, said condenser having an inlet and an outlet; an evaporator for passing refrigerant therethrough, said evaporator having an inlet and an outlet; cycle selection valve means having an inlet means for receiving compressed gas discharged from said outlet of said compressor, said valve means having first and second outlets through which compressed gas may be selectively discharged; first conduit means for connecting said first outlet of said valve means with said inlet of said condenser; second conduit means for connecting said outlet of said condenser with said inlet of said evaporator; third conduit means for connecting said outlet of said evaporator with said suction port of said compressor; fourth conduit means for connecting said second outlet of said valve means with said inlet of said evaporator; an expansion device disposed in said second conduit; fifth conduit means for connecting said fourth conduit with said second conduit at a location between said condenser outlet and said expansion device; a first check valve disposed in said fifth conduit, said valve allowing flow only in the direction from said fourth conduit to said second conduit; sixth conduit means for connecting said condenser outlet with said third conduit; first valve means disposed in said sixth conduit for selectively allowing no flow through said sixth conduit and allowing flow only in the direction from said condenser outlet to said third conduit; a second check valve means disposed in said second conduit at a location between said condenser outlet and said connection with said fifth conduit, said valve allowing flow only in the direction from said condenser to said evaporator; a receiver disposed in said second conduit at a location in between said connection with said fifth conduit and said expansion device; second valve means disposed in said second conduit in between said receiver and said expansion device, said second valve being operable between an open and closed condition; and third valve means disposed in said fourth conduit, said third valve being operable between an open and a closed condition.

이 특허를 인용한 특허 (21)

Noda, Yoshitoshi; Yamaguchi, Hiroyuki; Tajima, Tadayoshi; Yoshioka, Hiroki; Ohashi, Toshio; Abe, Kenichi, Automotive air conditioning system.
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Barito Thomas, Compressor economizer circuit with check valve.
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Jacobsen, Henrik, Cooling unit and container with this unit.
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Sjoholm, Lars I.; Freund, Peter W.; Srichai, P. Robert; Gronneberg, Jeffrey B., Economizer combined with a heat of compression system.
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Noda Yoshitoshi,JPX ; Yamaguchi Hiroyuki,JPX ; Ohashi Toshio,JPX ; Kamiyama Kaoru,JPX ; Tajima Tadayoshi,JPX ; Watanabe Toshiharu,JPX ; Okawara Yasuhito,JPX ; Yoshioka Hiroki,JPX, Heat pump type air conditioning system for automotive vehicle.
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Noda Yoshitoshi,JPX ; Yamaguchi Hiroyuki,JPX ; Ohashi Toshio,JPX ; Kamiyama Kaoru,JPX ; Tajima Tadayoshi,JPX ; Watanabe Toshiharu,JPX ; Okawara Yasuhito,JPX ; Yoshioka Hiroki,JPX, Heat pump type air conditioning system for automotive vehicle.
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Taras, Michael F.; Lifson, Alexander, Heat pump with reheat and economizer functions.
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Taras,Michael F.; Lifson,Alexander, Heat pump with reheat and economizer functions.
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Taras,Michael F.; Lifson,Alexander, Heat pump with reheat circuit.
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Byrne John J. (Dublin OH) Shows Michael E. (Hilliard OH) Yost Robert (Wilmington DE), Method for changing lubricant types in refrigeration or air conditioning machinery using lubricant overcharge.
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Fragnito, Mark; Ward, Jr., John D.; Champagne, Deborah A., Method of operating a refrigeration system for a mobile cargo container.
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Sjoholm, Lars I.; Freund, Peter W.; Srichai, P. Robert; Gronneberg, Jeffrey B., Method of operating a refrigeration system in a null cycle.
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Taras,Michael F.; Lifson,Alexander, Multi-circuit dehumidification heat pump system.
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Taras,Michael F.; Lifson,Alexander, Refrigerant heat pump with reheat circuit.
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Furui, Shuji; Furusho, Kazuhiro; Yoh, Hiroshi, Refrigeration apparatus which injects an intermediate-gas liquid refrigerant from multi-stage expansion cycle into the compressor.
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Weyna, Paul Valentine; Simone, Richard Alan; Lewis, Russell George, System and method for rapid defrost or heating in a mobile refrigeration unit.
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Boyko, James G., Systems and methods for defrosting an evaporator in a refrigeration system.
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Hoium Stanley O. ; Freund Peter W., Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space.
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Koppineedi, Srinivasa Rao; Sulc, Vladimir; Waldschmidt, William L.; Wermager, Joe A., Temperature control system with refrigerant recovery arrangement.
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Senf, Jr., Raymond L.; Reason, John R., Transport refrigeration system and methods for same to address dynamic conditions.
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Renken, David; Kirby, Eric; Schlough, Michael; Shaw, John J., Transport temperature control system having an increased heating capacity and a method of providing the same.
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Transport refrigeration system having means for achieving and maintaining increased heating capacity 원문보기

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Transport refrigeration system having means for achieving and maintaining increased heating capacity 원문보기

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