摘要:
A variable-capacity air conditioner includes a compressor for compressing refrigerant, an indoor heat-exchanger coupled to the compressor, an outdoor heat-exchanger coupled to the compressor, a piping for coupling the compressor, the indoor heat-exchanger, and the outdoor heat-exchanger, a first capillary tube provided in the piping, a second capillary tube provided in the piping in series with the first capillary tube, a by-pass pipe connected in parallel to the second capillary tube, a valve for opening and closing the by-pass pipe, and a controller for controlling the compressor and the valve. The compressor is operable at a first capacity and a second capacity less than the first capacity to compress the refrigerant. The air conditioner prevents the compressor from overload and allows the refrigerant to circulating at an optimal flow amount rate through a refrigeration cycle.
摘要:
Provided is an air conditioner which has a separator with an oil tank for storing extra oil; a first oil return tube opening above the surface of the extra oil; and a second oil return tube opening below the surface of the extra oil. When the refrigeration cycle cannot maintain the required oil dilution ratio as a result of the refrigerant having been replenished to cope with long piping, extra oil can be supplied from the second oil return tube to maintain the required oil dilution ratio in the refrigeration cycle, while using a highly versatile general compressor.
摘要:
A variable-capacity air conditioner includes a compressor for compressing refrigerant, an indoor heat-exchanger coupled to the compressor, an outdoor heat-exchanger coupled to the compressor, a piping for coupling the compressor, the indoor heat-exchanger, and the outdoor heat-exchanger, a first capillary tube provided in the piping, a second capillary tube provided in the piping in series with the first capillary tube, a by-pass pipe connected in parallel to the second capillary tube, a valve for opening and closing the by-pass pipe, and a controller for controlling the compressor and the valve. The compressor is operable at a first capacity and a second capacity less than the first capacity to compress the refrigerant. The air conditioner prevents the compressor from overload and allows the refrigerant to circulating at an optimal flow amount rate through a refrigeration cycle.
摘要:
Provided is an air conditioner which has a separator with an oil tank for storing extra oil; a first oil return tube opening above the surface of the extra oil; and a second oil return tube opening below the surface of the extra oil. When the refrigeration cycle cannot maintain the required oil dilution ratio as a result of the refrigerant having been replenished to cope with long piping, extra oil can be supplied from the second oil return tube to maintain the required oil dilution ratio in the refrigeration cycle, while using a highly versatile general compressor.
摘要:
An air conditioner having two compressors enables, when one compressor is started, the phase advance capacitor for the other compressor to be temporarily separated and used in parallel with the phase advance capacitor for the one compressor. These compressors can have an increased starting torque without using a starting capacitor.
摘要:
An air conditioner having two compressors enables, when one compressor is started, the phase advance capacitor for the other compressor to be temporarily separated and used in parallel with the phase advance capacitor for the one compressor. These compressors can have an increased starting torque without using a starting capacitor. This structure allows the effective use of expensive capacitors, making the system inexpensive.
摘要:
An air conditioner of variable capacity type comprises a variable-capacity compressor capable of varying capacity in two levels by switching between FULL and SAVE. The variable-capacity compressor can start operation at SAVE so as to allow the air conditioner to start operation without causing a shutdown of the variable-capacity compressor in an overloaded condition or in a low power-supply voltage environment.
摘要:
A buffer management apparatus that sequentially receives L (L>1) types of data and transmits the L types of data to an external device, including: a reception unit that receives data; M (M
摘要:
A buffer management apparatus that sequentially receives L (L>1) types of data and transmits the L types of data to an external device, including: a reception unit that receives data; M (M
摘要:
The present invention aims to provide a battery-driven device that is capable of extending an operating time of a battery (a secondary battery). A battery control unit 220 included in the battery-driven device of the present invention stores therein one or more voltage thresholds, and detects a sharp voltage drop that occurs immediately after the start of discharging of the battery fully charged, based on the current voltage of the battery and the stored voltage thresholds. On detecting the sharp voltage drop, the battery control unit controls power consumption of the battery to decrease.