摘要:
A thermal storage container (70) is coupled to a pump (80) for circulating cooled liquid from the thermal storage container (70) in at least one of two circuits. One circuit includes a heat exchanger (100) coupled to the fresh food evaporator (49) for assisting in cooling the fresh food section of the refrigerator or for chilling the liquid. Another circuit includes a sub-cooler (96) between the compressor and condenser for cooling the hot gas output from the compressor before entering the condenser, thereby increasing the efficiency of the system. A three-way valve (90) is coupled from the output pump to couple the stored coolant selectively to one or the other or both of the coolant circuits.
摘要:
Provided is a refrigeration device that makes it possible to effectively eliminate problems caused by dryicing of carbon dioxide. This refrigeration device (R) is provided with a refrigerant circuit in which a refrigerant discharged from a compressor (2) is caused to condense, then depressurized in a capillary tube (28) and caused to evaporate in an evaporator (3) to obtain a refrigeration effect. A mixed refrigerant containing a first refrigerant having a boiling point in an extremely low-temperature region of -89.0°C to -78.1°C and carbon dioxide (R744) are sealed in as a refrigerant in the refrigerant circuit. A heater for heating at least a part of an intake pipe (32) channeling a refrigerant returning from the evaporator to the compressor is provided.
摘要:
Provided is a refrigeration device that makes it possible to effectively eliminate problems caused by dryicing of carbon dioxide. This refrigeration device (R) is provided with a refrigerant circuit in which a refrigerant discharged from a compressor (2) is caused to condense, then depressurized in a capillary tube (28) and caused to evaporate in an evaporator (3) to obtain a refrigeration effect. A mixed refrigerant containing a first refrigerant having a boiling point in an extremely low-temperature region of -89.0°C to -78.1°C and carbon dioxide (R744) are sealed in as a refrigerant in the refrigerant circuit. A heater for heating at least a part of an intake pipe (32) channeling a refrigerant returning from the evaporator to the compressor is provided.
摘要:
A receiver (50) is provided for collecting a refrigerant flowing through a refrigerant flow circuit. The receiver housing (52) defines an enclosed volume (55) establishing a refrigerant collection reservoir, and has an inlet (54), a first outlet (56), and a second outlet (58). A refrigerant metering device (70) is disposed within the enclosed volume (55) in operative association with the second outlet (58) for controlling a flow of refrigerant discharging through the second outlet (58). The refrigerant metering device (70) may be a capillary tube metering device (72). The receiver (50) may also include a refrigerant filter/dryer (80) disposed within the enclosed volume (55).
摘要:
A refrigerator appliance (and associated method) that includes a condenser, evaporator and a multi-capacity compressor. The appliance also includes a pressure reducing device arranged within an evaporator-condenser refrigerant circuit, and a valve system for directing or restricting refrigerant flow through the device. The appliance further includes a controller for operating the compressor upon the initiation of a compressor ON-cycle at a priming capacity above a nominal capacity for a predetermined or calculated duration.
摘要:
Ein Abstandhalterteil zum Fixieren eines Rohrs (14, 14') in einem Hohlraum weist einen elastischen Körper (1) und in dem Körper eine randoffene Aussparung (2) zum formschlüssigen Aufnehmen des Rohrs (14, 14') auf. Die randoffene Aussparung (2) weist wenigstens zwei Aufweitungen (5, 6) auf, die geeignet sind, ein Rohr mit unterschiedlichem Außenmaß formschlüssig zu halten.
摘要:
There is disclosed a refrigerating apparatus which can more efficiently cool the inside of a chamber to an ultralow temperature. In a refrigerating apparatus R1 which condenses a refrigerant discharged from a compressor 14, reduces a pressure of the refrigerant by a capillary tube 18 and evaporates the refrigerant by an evaporator 13 to exert a cooling function, the capillary tube 18 is passed through a suction piping line 32 through which the refrigerant returning from the evaporator 13 to the compressor 14 flows, to constitute a double tube structure. Furthermore, the suction piping line 32 (a piping line 32A) formed in the double tube structure by passing the capillary tube 18 therethrough is surrounded with an insulating material 35.
摘要:
A refrigeration circuit (3) for household appliances comprises a compressor (4) suitable for compressing a predetermined cooling fluid and for allowing circulation thereof within said circuit (3), a first heat exchanger (5) or condenser in fluid communication with the compressor (4) for allowing cooling and the consequent condensation of the cooling fluid going therethrough, and a second heat exchanger (7) or evaporator in fluid communication with the first exchanger (5) through a circuit with a special device (6) suitable for decreasing the pressure of the cooling fluid and acting at a space (2) to be cooled (normally inside the refrigerator). The second exchanger (7) allows the cooling fluid to evaporate, by heat absorption, thus cooling the space (2) and returning through the tubing (17) to the compressor (4). The cooling fluid circulates from the compressor (4) towards the first exchanger (5), from the latter towards the second exchanger (7), then returning to the compressor (4) for a subsequent cycle. At least one of the heat exchangers (5, 7) comprises a plastic tubing (9), at least one portion whereof exhibits such a corrugated profile as to impart flexibility thereto and/or increase the thermal exchange surface. The tubing in section exhibits a structural layer (100) of plastic material and a layer (101) comprising a film of metal material adapted to constitute a barrier against humidity and gases in general, such shaped as to maintain the tube flexibility.