公开(公告)号：US4499739A

公开(公告)日：1985-02-19

申请号：US526383

申请日：1983-08-24

申请人： Fumio Matsuoka ,  Hitoshi Iijima ,  Kisuke Yamazaki ,  Hiroshi Kasagi ,  Yasuo Nakashima ,  Kiyoshi Sakuma ,  Mitsuo Umehara

发明人： Fumio Matsuoka ,  Hitoshi Iijima ,  Kisuke Yamazaki ,  Hiroshi Kasagi ,  Yasuo Nakashima ,  Kiyoshi Sakuma ,  Mitsuo Umehara

IPC分类号： F25B1/00 ,  F25B13/00 ,  F25B41/04 ,  F25B41/06 ,  F25B47/02 ,  F25B49/02 ,  G05D23/24

CPC分类号： F25B13/00 ,  F25B41/04 ,  F25B49/02 ,  G05D23/1917 ,  G05D23/24 ,  F25B2341/062 ,  F25B2341/065 ,  F25B2400/0411 ,  F25B2400/16 ,  F25B2500/15 ,  F25B2600/021 ,  F25B2600/21 ,  F25B2600/2513 ,  F25B41/062 ,  F25B47/025 ,  Y02B30/72 ,  Y02B30/741

摘要： A control device for refrigeration cycle constructed with a compressor, a condenser, an electrically operated expansion valve, an evaporator, and so forth, all being connected in series, wherein there are further provided a by-pass extending from an inlet or an outlet or both of the expansion valve upto an inlet of the compressor through a capillary tube; a first temperature sensor to sense a temperature of a cooling medium at the inlet of the compressor; a second temperature sensor to sense a temperature of the cooling medium within an intake tubing, through which the cooling medium is taken into the inlet of the compressor; and a control device which calculates a super-heat quantity of the cooling medium taken into the compressor on the basis of a difference between the detection outputs of the first and second temperature sensors, and controls a degree of opening of the electrically operated expansion valve, thereby enabling the refrigeration cycle to be operated at high efficiency and in an energy-saving mode.

摘要翻译： 一种用压缩机，冷凝器，电动膨胀阀，蒸发器等构成的用于制冷循环的控制装置，其全部是串联连接的，其中还设置有从入口或出口延伸的旁路， 两个膨胀阀通过毛细管直到压缩机的入口; 用于感测压缩机入口处的冷却介质的温度的第一温度传感器; 第二温度传感器，用于感测进气管内的冷却介质的温度，冷却介质通过该入口管道进入压缩机的入口; 以及控制装置，其基于第一和第二温度传感器的检测输出之间的差来计算进入压缩机的冷却介质的超热量，并且控制电动膨胀阀的打开程度， 从而能够以高效率和节能的方式运转制冷循环。

公开(公告)号：US4771610A

公开(公告)日：1988-09-20

申请号：US57033

申请日：1987-06-03

申请人： Yasuo Nakashima ,  Akio Fukushima ,  Junji Tamari ,  Kiyoshi Sakuma ,  Yoshiaki Tanimura ,  Yasuo Sato ,  Hitoshi Iijima ,  Fumio Matsuoka ,  Mitsuo Umehara

发明人： Yasuo Nakashima ,  Akio Fukushima ,  Junji Tamari ,  Kiyoshi Sakuma ,  Yoshiaki Tanimura ,  Yasuo Sato ,  Hitoshi Iijima ,  Fumio Matsuoka ,  Mitsuo Umehara

IPC分类号： F25B5/00 ,  F25B13/00 ,  F25B41/04

CPC分类号： F25B41/04 ,  F25B13/00 ,  F25B5/00 ,  F25B2313/023

摘要： A multiroom air conditioner has a plurality of indoor heat exchangers connected to a single outdoor heat exchanger. A reversible expansion valve is installed on a liquid-side branch pipe for each of the indoor heat exchangers, and a solenoid valve is installed on a gas-side branch pipe for each indoor heat exchanger. Temperature sensors are provided on the liquid-side branch pipes, on the gas-side branch pipes, and on the outlet side during cooling of the outdoor heat exchanger. A pressure sensor or a temperature sensor detects the saturation temperature on the high-pressure side of the compressor. Based on the saturation temperature on the high-pressure side of the compressor, the temperature on the outlet side during cooling of the outdoor heat exchanger, and the temperatures in the liquidside branch pipes, a controller controls the expansion valves so as to obtain a target degree of subcooling during cooling and heating. The controller can also control the expansion valves so that the temperatures in each of the branch pipes are approximately equal to one another.

摘要翻译： 多室空调器具有连接到单个室外热交换器的多个室内热交换器。 在每个室内热交换器的液体侧分支管上安装有可逆膨胀阀，并且在每个室内热交换器的气体侧分支管上安装有电磁阀。 温度传感器设置在液体侧分支管，气体侧分支管和室外热交换器冷却时的出口侧。 压力传感器或温度传感器检测压缩机高压侧的饱和温度。 基于压缩机的高压侧的饱和温度，室外热交换器的冷却时的出口侧的温度和液体侧分支管的温度，控制器控制膨胀阀，以获得目标 冷却和加热过程中的过冷度。 控制器还可以控制膨胀阀，使得每个支管中的温度彼此近似相等。