|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||62/84 ; 62/160 ; 62/1961 ; 62/3231|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 34 인용 특허 : 0|
A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compressor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respectively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchanger. The valves are controlled in at least one predetermined open/close pattern during a null cycle, and prefe...
A method of operating a refrigeration system which achieves and holds a predetermined set point temperature in a conditioned space via cooling and heating cycles, with the refrigeration system including a refrigerant compressor which includes a suction port, an intermediate pressure port, and a discharge port, a compressor prime mover, a hot gas compressor discharge line, first and second hot gas lines, first controllable valve means having first and second positions which respectively connect the hot gas compressor discharge line to the first and second...