Method of controlling air conditioner cooling load utilizing controlling the opening degree of an expansion valve and/or the number of rotations of an outdoor fan
    1.
    发明授权
    Method of controlling air conditioner cooling load utilizing controlling the opening degree of an expansion valve and/or the number of rotations of an outdoor fan 有权
    通过控制膨胀阀的开度和/或室外风扇的转数来控制空调冷却负荷的方法

    公开(公告)号:US07997095B2

    公开(公告)日:2011-08-16

    申请号:US11878430

    申请日:2007-07-24

    申请人: Hideya Tamura

    发明人: Hideya Tamura

    IPC分类号: F25B17/00 F25B39/04 F25B41/04

    摘要: A method of controlling an air conditioner includes a step of controlling an opening degree of the expansion valve and/or the number of rotations of an outdoor fan of the outdoor heat exchanger such that the difference Tx (=Te−Ti) between the temperature Te of the outdoor heat exchanger and the temperature Ti of the indoor heat exchanger is within a predetermined range, in a cooling mode in a low outside air temperature environment. Specifically, the opening degree of the expansion valve is adjusted, with the number of rotations of the outdoor fan being reduced to be smaller than that in a normal cooling mode, and then, the number of rotations of the outdoor fan is adjusted with the opening degree of the expansion valve being fixed, thereby controlling the difference Tx to be substantially constant.

    摘要翻译: 控制空调的方法包括:控制室外热交换器的膨胀阀的开度和/或室外风扇的转数,使得温度Te之间的差Tx(= Te-Ti) 的室内热交换器的温度和室内热交换器的温度Ti处于规定的范围内。 具体地说,调节膨胀阀的开度,使室外风扇的转数减小到比普通冷却模式的转数少,然后用开口调节室外风扇的转速 固定膨胀阀的程度,从而将差值Tx控制为基本恒定。

    Method of controlling air conditioner
    2.
    发明申请
    Method of controlling air conditioner 有权
    空调控制方法

    公开(公告)号:US20080023563A1

    公开(公告)日:2008-01-31

    申请号:US11878430

    申请日:2007-07-24

    申请人: Hideya Tamura

    发明人: Hideya Tamura

    IPC分类号: F24F11/02

    摘要: A method of controlling an air conditioner includes a step of controlling an opening degree of the expansion valve and/or the number of rotations of an outdoor fan of the outdoor heat exchanger such that the difference Tx (=Te−Ti) between the temperature Te of the outdoor heat exchanger and the temperature Ti of the indoor heat exchanger is within a predetermined range, in a cooling mode in a low outside air temperature environment. Specifically, the opening degree of the expansion valve is adjusted, with the number of rotations of the outdoor fan being reduced to be smaller than that in a normal cooling mode, and then, the number of rotations of the outdoor fan is adjusted with the opening degree of the expansion valve being fixed, thereby controlling the difference Tx to be substantially constant.

    摘要翻译: 控制空调的方法包括:控制室外热交换器的膨胀阀的开度和/或室外风扇的转数,使得温度Te之间的差Tx(= Te-Ti) 的室内热交换器的温度和室内热交换器的温度Ti处于规定的范围内。 具体地说,调节膨胀阀的开度,使室外风扇的转数减小到比普通冷却模式的转数少,然后用开口调节室外风扇的转速 固定膨胀阀的程度,从而将差值Tx控制为基本恒定。

    Refrigeration apparatus
    3.
    发明授权
    Refrigeration apparatus 失效
    制冷装置

    公开(公告)号:US08413456B2

    公开(公告)日:2013-04-09

    申请号:US12591853

    申请日:2009-12-03

    IPC分类号: F25B41/00 F25D23/12

    摘要: There is provided a refrigeration apparatus in which a refrigerant accumulating in non-operating outdoor units is supplied to an outdoor unit being operated in which a shortage of refrigerant occurs without starting the compressors of the non-operating outdoor units. In the control method for the refrigeration apparatus in which to refrigerant piping 10 installed between the indoor side and the outdoor side, a plurality of outdoor units 30A, 30B each including a compressor 31, a directional control valve 34, an outdoor heat exchanger 35, an outdoor expansion valve 36, and an accumulator 37 are connected in parallel on the outdoor side, and each of the outdoor units is provided with a hot gas bypass circuit 38 that includes a solenoid valve 38a and an expansion mechanism 38b arranged in series, and is connected between high-pressure side piping 33a on the discharge side of the compressor and low-pressure side piping 33b on the accumulator side, if a shortage of refrigerant occurs when air cooling operation is performed in a state in which only the outdoor unit 30A is operated and other outdoor units 30B are not operated, the solenoid valves 38a of the non-operating outdoor units 30B are opened so that the refrigerant accumulating in the non-operating outdoor units 30B is supplied to the outdoor unit 30A via the hot gas bypass circuit 38 and the low-pressure piping 33b.

    摘要翻译: 提供了一种制冷装置,其中积存在非操作室外单元中的制冷剂被供给到在没有启动非操作室外单元的压缩机的情况下发生制冷剂不足的操作的室外单元。 在室内侧和室外侧的制冷剂配管10的制冷装置的控制方法中,分别具备压缩机31,方向控制阀34,室外热交换器35等的多个室外机组30A,30B, 室外侧并联连接有室外膨胀阀36和蓄压器37,并且每个室外机设置有包括串联排列的电磁阀38a和膨胀机构38b的热气旁路回路38, 连接在压缩机的排出侧的高压侧配管33a与蓄压器侧的低压侧配管33b之间,如果仅在室外单元30A的状态下进行制冷运转,则发生制冷剂不足 并且其他室外单元30B不工作时,非操作室外单元30B的电磁阀38a被打开,使得积存在非操作中的制冷剂 g室外单元30B经由热气旁路回路38和低压配管33b供给室外单元30A。

    Air conditioning apparatus
    5.
    发明授权
    Air conditioning apparatus 有权
    空调设备

    公开(公告)号:US09046284B2

    公开(公告)日:2015-06-02

    申请号:US13615290

    申请日:2012-09-13

    IPC分类号: F25B13/00 F25B49/02

    摘要: An air conditioning apparatus 1 includes first start control and second start control as its start control. In the first start control, first outdoor heat exchangers 24a, 24b are controlled to function as evaporators and second outdoor heat exchangers 25a, 25b are controlled to function as condensers. Thus, even when the compressors 21a, 21b are driven on at a given rotation number, the discharge pressures thereof can be prevented from increasing, thereby being able to prevent the internal pressures of the compressors 21a, 21b from increasing. Also, after end of the first start control, the first outdoor heat exchangers 24a, 24b and second outdoor heat exchangers 25a, 25b are all controlled to function as evaporators, and the compressors 21a, 21b are driven on at a given rotation number. This can shorten the rising time of the heating capacity in the start of the normal heating operation.

    摘要翻译: 空调装置1包括第一启动控制和第二启动控制作为其起动控制。 在第一启动控制中,第一室外热交换器24a,24b被控制为蒸发器,第二室外热交换器25a,25b被控制为用作冷凝器。 因此,即使当压缩机21a,21b以给定的转数被驱动时,也可以防止其排出压力增加,从而能够防止压缩机21a,21b的内部压力增加。 此外,在第一启动控制结束后,第一室外热交换器24a,24b和第二室外热交换器25a,25b全部被控制为蒸发器,压缩机21a,21b以给定的转数被驱动。 这可以缩短正常加热操作开始时的加热能力的上升时间。

    Refrigeration apparatus
    6.
    发明申请
    Refrigeration apparatus 审中-公开
    制冷装置

    公开(公告)号:US20100147018A1

    公开(公告)日:2010-06-17

    申请号:US12591856

    申请日:2009-12-03

    IPC分类号: F25B43/02 F25B1/10 F01C1/02

    摘要: In the case where one compressor that is operated by being connected in parallel is a compressor in which the discharged oil amount is small, and the other compressor is a compressor in which the discharged oil amount is large, the amounts of refrigerator oil in the compressors are made approximately equal. In the refrigeration apparatus in which an outdoor unit 100 includes at least two compressors, a first compressor 110 and a second compressor 120, which are connected in parallel with each other; an oil separator 111, 121 is provided in a discharge pipe of each of the compressors 110 and 120; and a first oil separator 111 on the first compressor side is connected to a suction pipe 164 of the second compressor 120 via first oil return piping 114, and a second oil separator 121 on the second compressor side is connected to a suction pipe 163 of the first compressor 110 via second oil return piping 124, a rotary compressor is used as the first compressor 110, and a scroll compressor is used as the second compressor 120; and an oil storage part 110b of the first compressor 110 is connected to the suction pipe 164 of the second compressor 120 via an oil guiding pipe 118.

    摘要翻译: 在通过并联连接的一台压缩机是排出油量小的压缩机,另一台压缩机是排出油量大的压缩机的情况下,压缩机内的冷冻机油量 大致相等。 在室外机100具有至少两台压缩机的制冷装置中,彼此并联连接的第一压缩机110和第二压缩机120; 在每个压缩机110和120的排出管中设置有油分离器111,121; 并且第一压缩机侧的第一分油器111经由第一回油配管114与第二压缩机120的吸入管164连接,第二压缩机侧的第二分油器121与第一压缩机侧的吸入管163连接。 第一压缩机110经由第二回油管道124,旋转压缩机用作第一压缩机110,并且涡旋压缩机用作第二压缩机120; 第一压缩机110的储油部110b经由导油管118与第二压缩机120的吸入管164连接。

    Refrigeration apparatus and method for controlling the same
    7.
    发明授权
    Refrigeration apparatus and method for controlling the same 有权
    制冷装置及其控制方法

    公开(公告)号:US08312731B2

    公开(公告)日:2012-11-20

    申请号:US12591855

    申请日:2009-12-03

    IPC分类号: F25B43/02

    摘要: A refrigeration apparatus includes an outdoor unit having a first compressor and a second compressor connected in parallel with each other, a first oil separator attached to the first compressor and connected to a suction pipe of the second compressor via a first oil return piping including a pressure reducing device, and a second oil separator attached to the second compressor and connected to a suction pipe of the first compressor via a second oil return piping including a pressure reducing device. The suction pipes of the first and second compressors are connected together. The first compressor is a variable-speed compressor, and the second compressor is a constant-speed compressor. A solenoid valve selectively forming a bypass circuit with respect to the pressure reducing device, is connected in parallel with the pressure reducing device of the first oil return piping. The solenoid valve is opened when the first compressor is restarted.

    摘要翻译: 一种制冷装置,包括具有彼此并联连接的第一压缩机和第二压缩机的室外机组,安装在第一压缩机上并与第二压缩机的吸入管连接的第一油分离器,该第一油分离器经由包括压力 以及第二油分离器,其通过包括减压装置的第二回油管道连接到第二压缩机并连接到第一压缩机的吸入管。 第一和第二压缩机的吸入管连接在一起。 第一压缩机是变速压缩机,第二压缩机是恒速压缩机。 选择性地形成相对于减压装置的旁路回路的电磁阀与第一回油管道的减压装置并联连接。 当第一台压缩机重启时,电磁阀打开。

    Refrigeration apparatus
    8.
    发明申请
    Refrigeration apparatus 失效
    制冷装置

    公开(公告)号:US20100146998A1

    公开(公告)日:2010-06-17

    申请号:US12591853

    申请日:2009-12-03

    IPC分类号: F25B1/00 F25D23/00 F25D13/00

    摘要: There is provided a refrigeration apparatus in which a refrigerant accumulating in non-operating outdoor units is supplied to an outdoor unit being operated in which a shortage of refrigerant occurs without starting the compressors of the non-operating outdoor units. In the control method for the refrigeration apparatus in which to refrigerant piping 10 installed between the indoor side and the outdoor side, a plurality of outdoor units 30A, 30B each including a compressor 31, a directional control valve 34, an outdoor heat exchanger 35, an outdoor expansion valve 36, and an accumulator 37 are connected in parallel on the outdoor side, and each of the outdoor units is provided with a hot gas bypass circuit 38 that includes a solenoid valve 38a and an expansion mechanism 38b arranged in series, and is connected between high-pressure side piping 33a on the discharge side of the compressor and low-pressure side piping 33b on the accumulator side, if a shortage of refrigerant occurs when air cooling operation is performed in a state in which only the outdoor unit 30A is operated and other outdoor units 30B are not operated, the solenoid valves 38a of the non-operating outdoor units 30B are opened so that the refrigerant accumulating in the non-operating outdoor units 30B is supplied to the outdoor unit 30A via the hot gas bypass circuit 38 and the low-pressure piping 33b.

    摘要翻译: 提供了一种制冷装置,其中积存在非操作室外单元中的制冷剂被供给到在没有启动非操作室外单元的压缩机的情况下发生制冷剂不足的操作的室外单元。 在室内侧和室外侧的制冷剂配管10的制冷装置的控制方法中,分别具备压缩机31,方向控制阀34,室外热交换器35等的多个室外机组30A,30B, 室外侧并联连接有室外膨胀阀36和蓄压器37,并且每个室外机设置有包括串联排列的电磁阀38a和膨胀机构38b的热气旁路回路38, 连接在压缩机的排出侧的高压侧配管33a与蓄压器侧的低压侧配管33b之间,如果仅在室外单元30A的状态下进行制冷运转,则发生制冷剂不足 并且其他室外单元30B不工作时,非操作室外单元30B的电磁阀38a被打开,使得积存在非操作中的制冷剂 g室外单元30B经由热气旁路回路38和低压配管33b供给室外单元30A。

    Refrigeration apparatus and method for controlling the same
    9.
    发明申请
    Refrigeration apparatus and method for controlling the same 有权
    制冷装置及其控制方法

    公开(公告)号:US20100146994A1

    公开(公告)日:2010-06-17

    申请号:US12591855

    申请日:2009-12-03

    IPC分类号: F25B43/02

    摘要: In a refrigeration apparatus having a plurality of compressors, which are connected in parallel and are operated, in an outdoor unit, a compressor (inverter compressor) is started surely after the stoppage of operation. In the refrigeration apparatus in which the outdoor unit 100 includes two compressors of a first compressor 110 and a second compressor 120, which are connected in parallel with each other; an oil separator 111, 121 is provided on the discharge side of each of the compressors; a first oil separator 111 on the first compressor side is connected to a suction pipe 164 of the second compressor via first oil return piping 114 including a pressure reducing means 115, and a second oil separator 121 on the second compressor side is connected to a suction pipe 163 of the first compressor via second oil return piping 124 including a pressure reducing means 125; and the first compressor is an inverter compressor, and the second compressor is a constant-speed compressor, a solenoid valve 116 is connected in parallel with the pressure reducing means 115 of the first oil return piping 114, and before the restart of the first compressor (inverter compressor) 110, the solenoid valve 116 is turned on to cause the discharge side and the suction side to be approximately equalized.

    摘要翻译: 在具有并联连接并被操作的多个压缩机的制冷装置中,在室外机中,在停止运转之后,可靠地启动压缩机(变频压缩机)。 在室外机100具有由彼此并联连接的第一压缩机110和第二压缩机120的两台压缩机的制冷装置中, 在每个压缩机的排出侧设置有油分离器111,121; 第一压缩机侧的第一油分离器111经由包括减压装置115的第一回油管道114与第二压缩机的吸入管164连接,第二压缩机侧的第二分油器121与吸入口 经由包括减压装置125的第二回油管道124的第一压缩机的管163; 并且第一压缩机是变频压缩机,第二压缩机是恒速压缩机,电磁阀116与第一回油配管114的减压装置115并联,并且在第一压缩机重启之前 (变频压缩机)110,电磁阀116接通,使排出侧和吸入侧近似相等。