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JP2000205665A |
To achieve a higher operation efficiency and an inhibition of power consumption and increase in the rated capacity of the system itself by enhancing a cooling capacity while suppressing increase in input power. A controller 7a is provide...
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JP2000508753A |
A precooled vapor-liquid refrigeration cycle includes a basic vapor-liquid cycle and an auxiliary regenerative vapor-liquid cycle having a heat exchange relationship between them. The basic cycle includes a compressor connected in series...
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JP3042506B2 |
To improve reliability of a compressor by securely preventing bad lubrication in a compressor. A high temperature side refrigerating circuit 20 and a low temperature side refrigerating circuit are connected with each other through a refr...
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JP2000130895A |
To perform defrost surely in a cooler for refrigerator by melting dews completely while eliminating useless defrost operation. A primary refrigerating circuit is provided with two refrigerant heat exchangers 11 through which the primary ...
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JP2604326Y2 |
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JP3036519B2 |
To avoid positively a severe frosted state where an amount of frosting to an evaporator becomes excessive and improve reliability in operation of a refrigeration device. A high temperature side refrigeration circuit and a low temperature...
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JP2000074514A |
To provide a battery type air conditioner which can cope with the need of the increase of its capacity or the enlargement of the air conditioner in response to an increased or added cooling load, can reduce the day-time power consumption...
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JP2000065431A |
To contrive downsizing of a refrigerating cycle apparatus wherein a combustible and poisonous refrigerant as a primary refrigerant and another secondary refrigerant are used. The refrigerating cycle apparatus comprises a primary refriger...
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JP3008925B2 |
To restrict the complication of a circuitry by simplifying the control of a high pressure refrigerant pressure and the sampling control of a gas refrigerant. A high temperature side refrigerating circuit 20 comprises a compressor 21, a c...
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JP2000035262A |
To securely achieve starting by preventing a liquid refrigerant from flowing into a condensation section of a refrigerant heat exchanger from a receiver upon interruption. A binary freezing apparatus is constructed by connecting a high t...
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JP2983969B2 |
To obtain a compsn. which has a sufficient refrigerant capability by mixing an azeotropic mixture of chlorodifluoromethane and octafluoropropane with n-pentane in a specified amt. based on the amt. of the azeotropic mixture. This compsn....
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JP2962311B1 |
[wrap up] [Task] At the same time as expanding the cooling capacity, the evaporator will be downsized. It is provided with a high-temperature side refrigeration circuit in which a compressor, a condenser, an electric expansion valve, and...
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JPH11201569A |
To raise the running cost, for a refrigerating machine which performs the so-called plural refrigeration cycles. As a refrigerating system for a supermarket, a plurality of units 10, 20, and 30 on use side are connected in parallel to on...
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JP2927230B2 |
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JPH11182953A |
To improve the effectiveness of energy without making a refrigerator larger in scale and increasing the production cost in such a refrigerator as to utilize two-dimensional refrigerating cycle. This refrigerator utilizing dual refrigerat...
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JPH11173711A |
To complete the defrosting at a high defrosting power of a coolant for a short time, without using electric heaters. The refrigerator having a high- and low-temp. side refrigeration cycles A, B. The high-temp. side refrigeration unit A i...
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JPH11173683A |
To provide an apparatus which enables the generation of a cryogenic temperature area while allowing a lower cost and a smaller size without depending on a refrigerant used. In a first circuit, a gaseous phase refrigerant discharged from ...
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JPH11158461A |
To obtain a refrigerant compsn. with a very low ozone depletion potential by using an azeotropic mixture of trifluoromethane and hexafluoroethane. This azeotropic mixture, though poor in compatibility with an oil, can give a refrigerant ...
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JP2894421B2 |
A heat storage type air conditioner which is free from a difficulty that, when a general cooling and heating circuit and a cold radiating and heat radiating circuit are operated separately or simultaneously, the quantities of refrigerant...
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JPH11108397A |
To achieve a proper switching operation of a four-way selector valve without requiring a command signal for controlling each circuit for a secondary refrigerant system having a heat source side circuit and a use side circuit. The use sid...
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JPH11101523A |
To increase a system structure, easily meet lubricating oil and simplify an operation control. A primary side circuit 20 in which a primary side refrigerant as a heat source and a secondary side circuit 30 in which a secondary side refri...
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JP2865475B2 |
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JPH1163696A |
To provide a dual refrigeration cycle which enables stable operation constantly against any change in load while allowing miniaturization as a whole. A half-closed type screw double stage compressor 1 which is provided with a continuous ...
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JP2861296B2 |
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JP2854079B2 |
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JPH1130599A |
To provide a heat accumulation quantity measuring method that can easily know the heat accumulation quantity in a lower-dimensional evaporator and two-dimensional cooling facilities that use carbon dioxide as a cooling medium in a lower-...
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JPH1114172A |
To store heat by nighttime power by providing low-temperature side evaporator with a tank structure and carbon dioxide that is used as the low- temperature side refrigerant and is stored in the mixed state between dry ice and a liquid in...
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JPH10300330A |
To enhance heat insulation effect of a freezing chamber which is kept at extremely low temperature by a dual refrigerator. A vertical extremely low temperature freezer 1 comprises a heat insulating box member 7 formed in a composite stru...
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JP2816525B2 |
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JP2814697B2 |
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JP2816526B2 |
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JP2814186B2 |
PURPOSE: To obtain cooling equipment which prevents effectively a sudden rise of pressure due to compression of a liquid and can raise the temperature of a body to be cooled and cool it again efficiently in a short time. CONSTITUTION: Co...
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JPH10253182A |
To suppress an excessive rise of pressure on the high pressure side of a low temperature side refrigerating circuit and avoid its abnormal stop in a binary refrigerating device. A binary refrigerating device is provided with a high tempe...
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JP2792942B2 |
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JPH10197171A |
To reuse an existing tube of a refrigerator using R22 for a refrigerator using HFC refrigerant. In the existing refrigerator using R22, an indoor unit B and an existing tube 21b are retained, and the other parts are removed. After the tu...
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JP2764489B2 |
PURPOSE: To obtain the above refrigerant, which is safe, and does not destroy the ozon layer and generate a low temperature, by a method wherein non-azeotroplc mixture refrigerant, containing at least three kinds among five kinds of refr...
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JPH10148409A |
To accomplish highly efficient heating and cooling operations with a quick rising by using a refrigerant operable in a supercritical zone and a 2-phase area in a secondary cycle. This air conditioning apparatus is constituted of a primar...
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JPH10103800A |
To enhance an overall efficiency. A cold side device is provided with a cold storage side compressor 3, a condenser 4, a liquid receiver 22, a cold storage side evaporator 13 and a cold storage side evaporator 28. A freezing side device ...
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JP2714065B2 |
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JP2711878B2 |
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JP2711879B2 |
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JP2708926B2 |
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JP2708925B2 |
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JP2697376B2 |
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JP2559220Y2 |
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JPH09269155A |
To prevent an abnormal pressure increase of high pressure refrigerant at the time of energization of a low temperature side freezing cycle and further enable a smooth energization of the freezer when a plurality of low temperature side f...
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JP2640051B2 |
PURPOSE: To suppress a rise of temperature in a refrigerator by supplying electric current through a heater for the prevention of freezing with the most appropriate timing in relation with the temperature in the refrigerator. CONSTITUTIO...
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JPH09210481A |
To provide a refrigerating device of which the refrigerating effects is increased. This refrigerating device has two compressors 15, 16, a condenser 22, an evaporator 35 and a heat-exchanger which can be freely heated by an electric heat...
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JPH09196481A |
To clear away the operation trouble, relating to an air-conditioning apparatus employing as a substitute refrigerant a mixture refrigerant composed of a low-boiling point refrigerant and a high-boiling point component, that doing cooling...
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JP2626912B2 |
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