Source: http://www.google.com/patents/US5491981?dq=7,517,222
Timestamp: 2014-03-14 06:44:25
Document Index: 430619869

Matched Legal Cases: ['art 62', 'art 61', 'art 62', 'art 61', 'art 61', 'art 61']

Patent US5491981 - Refrigeration cycle having an evaporator for evaporating residual liquid ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn air conditioner system includes internal and external heat exchangers and a compressor for refrigerant. During cooling and heating operations, one of the heat exchangers discharges a first flow of gaseous refrigerant which is to be conducted to the compressor inlet. In order to evaporate any residual...http://www.google.com/patents/US5491981?utm_source=gb-gplus-sharePatent US5491981 - Refrigeration cycle having an evaporator for evaporating residual liquid refrigerantAdvanced Patent SearchPublication numberUS5491981 APublication typeGrantApplication numberUS 08/304,850Publication dateFeb 20, 1996Filing dateSep 13, 1994Priority dateSep 15, 1993Fee statusLapsedPublication number08304850, 304850, US 5491981 A, US 5491981A, US-A-5491981, US5491981 A, US5491981AInventorsJong-Youb KimOriginal AssigneeSamsung Electronics Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (7), Referenced by (14), Classifications (12), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetRefrigeration cycle having an evaporator for evaporating residual liquid refrigerantUS 5491981 AAbstract An air conditioner system includes internal and external heat exchangers and a compressor for refrigerant. During cooling and heating operations, one of the heat exchangers discharges a first flow of gaseous refrigerant which is to be conducted to the compressor inlet. In order to evaporate any residual liquid refrigerant in the first flow, the first flow is passed through an evaporator in heat exchange relationship with a second flow of refrigerant discharged from the other heat exchanger. The evaporator is connected by valved conduits to receive the second flow from either the indoor or outdoor heat exchanger, depending upon whether the system is in a heating mode or a cooling mode. Within the evaporator, an upper chamber which receives the first flow is recessed into a lower chamber which receives the second flow and contains a heat transfer structure for promoting an efficient heat exchange.
Here, the temperature of the liquid receiver part 62 is maintained at about 40 temperature of the liquid divider part 61 is maintained at about 10 and 62, the heat of the liquid receiver part 62 is transferred to the heat absorption fin 67 through the casing of the liquid divider part 61 and in turn transferred to the nets 69, thus to completely evaporate the remaining liquid phase refrigerant.
When the outside temperature in the heating operation of the air conditioner is a low temperature not higher than -5 amount of liquid phase refrigerant which did not evaporate in the external heat exchanger 30 is introduced into the liquid divider part 61 through the refrigerant inlet conduit 64. In this regard, there may be generated a stratified division between compressor oil and the liquid phase refrigerant. However, the remaining liquid phase refrigerant completely evaporates due to both the heat absorption fin 67 and the net 69 provided in the liquid divider part 61 in accordance with the present invention, so that such possible stratified division between the compressor oil and the liquid phase refrigerant is prevented.