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:
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:
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:
The present invention provides a ferritic stainless steel casting and a sheet thereof excellent in deep drawability, punch stretchability and ridging resistance and a method for producing the casting and the sheet. In the present invention, a chemical composition is controlled so that the amounts of C, N, Si, Mn, P and Ti may be reduced to the utmost for securing high workability and, on the basis of the chemical composition, the roping and ridging of a steel sheet product is reduced by adding Mg, thus dispersing Mg containing oxides that accelerate the formation of nuclei for solidification and, resultantly, suppressing the development of coarse columnar crystals in a casting. The present invention is characterized in that the average composition of the Mg containing oxides dispersing in a casting satisfies the following expressions and , 17.4(Al2O3)+3.9(MgO)+0.3(MgAl2O4)+18.7(CaO)≦500 , (Al2O3)+(MgO)+(MgAl2O4)+(CaO)≧95 .
摘要翻译:本发明提供一种铁素体不锈钢铸件及其深冲性,冲压伸缩性和抗皱性优异的片材以及铸造和片材的制造方法。 在本发明中,化学成分被控制为使得可以将C,N,Si,Mn,P和Ti的量最大限度地降低以确保高的可加工性,并且基于化学成分,卷绕和起皱 通过添加Mg来还原钢板产品,从而分散加速形成核固化的含Mg氧化物,从而抑制铸造中的粗大柱状晶体的发展。 本发明的特征在于,分散在铸件中的含Mg氧化物的平均组成满足以下表达式2和3,17.4(Al 2 O 3)+3.9(MgO)+0.3(MgAl 2 O 4)+18.7(CaO) (Al 2 O 3)+(MgO)+(MgAl 2 O 4)+(CaO)> = 95 3。
摘要:
A heat equalizer includes a container structure having a heating block in which a working fluid is held for heating and vaporizing a material to be heated, a heater placed at the bottom of the container structure, and a material feed pipe allowing the outside and the inside of the container structure to communicate with each other. In the heating block, as a flow path in which the material to be heated flows, a main header pipe connected to the material feed pipe and extending in the horizontally, and a riser pipe branching from the main header pipe and extending vertically are formed. As a condensation path in which the working fluid is cooled and condensed, condensation holes formed respectively on the opposite sides of the riser pipe and extending horizontally, and a condensation pit formed under the riser pipe are formed. Between the condensation holes and the condensation pit, the main header pipe is placed.
摘要:
A heat transfer device that allows high-accuracy temperature management of an entire piping system. The heat transfer device transferring heat to the piping system through which a fluid flows includes: a high heat conductive heat transfer block surrounding the piping system; a heat pipe embedded in the heat transfer block along an extension direction of the piping system; and a heater applying heat to the heat pipe. The heat transfer block includes a plurality of divided blocks dividable along the extension direction of the piping system.