Refrigerant vapor compression system operating at or near zero load
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-001/00
출원번호
US-0679757
(2007-09-26)
등록번호
US7997092
(2011-08-03)
국제출원번호
PCT/US2007/020788
(2007-09-26)
§371/§102 date
20100324
(20100324)
국제공개번호
WO09/041942
(2009-04-02)
발명자
/ 주소
Lifson, Alexander
Taras, Michael F.
출원인 / 주소
Carrier Corporation
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
8인용 특허 :
18
초록▼
A method is provided for operating a refrigerant vapor compression system at substantially zero cooling capacity to facilitate tight temperature control within a climate-controlled environment associated with the refrigerant vapor compression system. The method includes the step of diverting substan
A method is provided for operating a refrigerant vapor compression system at substantially zero cooling capacity to facilitate tight temperature control within a climate-controlled environment associated with the refrigerant vapor compression system. The method includes the step of diverting substantially all refrigerant flow from the primary refrigerant flow circuit of the refrigerant vapor compression system at a first location downstream, with respect to refrigerant flow, of the heat rejection heat exchanger and upstream, with respect to refrigerant flow, of the evaporator refrigerant expansion device to reenter the primary refrigerant flow circuit at a second location downstream, with respect to refrigerant flow, of the evaporator and upstream, with respect to refrigerant flow, of the compression device.
대표청구항▼
We claim: 1. A method of operating a refrigerant vapor compression system at substantially zero capacity, the refrigerant vapor compression system including a refrigerant compression device, a heat rejection heat exchanger, an evaporator refrigerant expansion device, and an evaporator disposed in se
We claim: 1. A method of operating a refrigerant vapor compression system at substantially zero capacity, the refrigerant vapor compression system including a refrigerant compression device, a heat rejection heat exchanger, an evaporator refrigerant expansion device, and an evaporator disposed in series in a refrigerant flow circuit, said method comprising the step of:providing a bypass line establishing refrigerant flow communication between a first location downstream, with respect to refrigerant flow, of said heat rejection heat exchanger and upstream, with respect to refrigerant flow, of said evaporator refrigerant expansion device and a second location downstream, with respect to refrigerant flow, of said evaporator and upstream, with respect to refrigerant flow, of said compression device;providing a bypass flow control device interdisposed in said bypass line;providing an evaporator flow control device in said refrigerant flow circuit downstream, with respect to refrigerant flow, of said first location, and upstream, with respect to refrigerant flow, of said second location; andselectively closing said evaporator flow control device and simultaneously opening said bypass flow control device to divert substantially all refrigerant flow from said refrigerant flow circuit at said first location through said bypass line to reenter said refrigerant flow circuit at said second location,wherein the step of providing a bypass flow control device interdisposed in said bypass line comprises providing a solenoid valve having a first closed position and a second open position, andwherein a fixed restriction flow control device is interdisposed in said bypass line in serial refrigerant flow communication with said solenoid valve.
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이 특허에 인용된 특허 (18)
Barito Thomas, Compressor economizer circuit with check valve.
Lifson, Alexander; Bush, James W.; Taras, Michael F.; Fraser, Jr., Howard H.; Lewis, Russell G., Injection of liquid and vapor refrigerant through economizer ports.
Brendel Thomas Edward ; Reason John Robert ; Morse Douglas Herbert ; Lane L. Thomas ; Rusert Mead Robert, Integrated electronic refrigerant management system.
Lifson Alexander ; Karpman Boris, Method of optimizing cooling capacity, energy efficiency and reliability of a refrigeration system during temperature pull down.
Hanson Jay L. (Bloomington MN) Nixon James E. (Woodbury MN) Hoium Stanley O. (Eagan MN) Freund Peter W. (Bloomington MN), Methods and apparatus for operating a refrigeration unit.
Lifson,Alexander; Taras,Michael F.; Fraser, Jr.,Howard H.; Lewis,Russell G.; Stumpf,Andre, Refrigerant system with common economizer and liquid-suction heat exchanger.
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