HEAT PUMP APPARATUS
    2.
    发明申请
    HEAT PUMP APPARATUS 有权
    热泵装置

    公开(公告)号:US20120180510A1

    公开(公告)日:2012-07-19

    申请号:US13499365

    申请日:2009-10-20

    IPC分类号: F25B1/00 F25B41/04

    摘要: In a heat pump apparatus, switching between high efficiency operation, being efficient, and high capacity operation, having high capacity, is performed according to the state of the load. There are provided a main refrigerant circuit that uses an ejector, a first sub-refrigerant circuit that connects a portion between a heat exchanger and an ejector to a portion between a gas-liquid separator and a heat exchanger, and a second sub-refrigerant circuit that connects a portion between the heat exchanger and the ejector to an injection pipe of a compressor. When the load is about medium, refrigerant is circulated in the main refrigerant circuit to perform an efficient ejector aided operation utilizing the ejector. When the load is large, a high capacity injection operation is performed by flowing refrigerant to the second sub-refrigerant circuit. When the load is small, a simple bypass operation which prevents degradation of efficiency is performed by flowing refrigerant to the first sub-refrigerant circuit.

    摘要翻译: 在热泵装置中,根据负载的状态进行具有高容量的高效率运行,高效率运转和大容量运转之间的切换。 提供了一种主制冷剂回路,其使用喷射器,将热交换器和喷射器之间的部分连接到气液分离器和热交换器之间的部分的第一副制冷剂回路和第二副制冷剂回路 其将热交换器和喷射器之间的部分连接到压缩机的喷射管。 当负载大约为中等时,制冷剂在主制冷剂回路中循环,以利用喷射器进行有效的喷射器辅助操作。 当负载大时,通过使制冷剂流到第二副制冷剂回路来进行高容量的注入操作。 当负载小时,通过使制冷剂流到第一副制冷剂回路来进行防止效率降低的简单的旁路操作。

    Heat pump apparatus with ejector cycle
    3.
    发明授权
    Heat pump apparatus with ejector cycle 有权
    带喷射器循环的热泵设备

    公开(公告)号:US09200820B2

    公开(公告)日:2015-12-01

    申请号:US13499365

    申请日:2009-10-20

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

    摘要: In a heat pump apparatus, switching between high efficiency operation, and high capacity operation, is performed according to the state of the load. A main refrigerant circuit uses an ejector. A first sub-refrigerant circuit connects a portion between a heat exchanger and an ejector to a portion between a gas-liquid separator and a heat exchanger A second sub-refrigerant circuit connects a portion between the heat exchanger and the ejector to an injection pipe of a compressor. When the load is medium, refrigerant is circulated in the main refrigerant circuit to perform an efficient ejector aided operation. When the load is large, a high capacity injection operation is performed by flowing refrigerant to the second sub-refrigerant circuit. When the load is small, a simple bypass operation prevents degradation of efficiency by flowing refrigerant to the first sub-refrigerant circuit.

    摘要翻译: 在热泵装置中,根据负载状态进行高效率运转和大容量运转之间的切换。 主制冷剂回路使用喷射器。 第一副制冷剂回路将热交换器和喷射器之间的部分连接到气液分离器和热交换器A之间的部分。第二副制冷剂回路将热交换器和喷射器之间的部分连接到喷射管 压缩机 当负载为中等时,制冷剂在主制冷剂回路中循环,以进行有效的喷射器辅助操作。 当负载大时,通过使制冷剂流到第二副制冷剂回路来进行高容量的注入操作。 当负载小时,简单的旁路操作通过使制冷剂流到第一副制冷剂回路来防止效率的降低。

    Refrigeration cycle apparatus
    4.
    发明授权
    Refrigeration cycle apparatus 有权
    制冷循环装置

    公开(公告)号:US09207004B2

    公开(公告)日:2015-12-08

    申请号:US13636304

    申请日:2011-01-26

    摘要: Refrigerating machine oil is reliably returned to a compressor, regardless of whether the oil is miscible or immiscible with a refrigerant. A first refrigerant channel includes a compressor, a condenser, a first flow control valve, a refrigerant storing container, a second flow control valve, and a first evaporator are connected in that order. A refrigerant outlet of the first evaporator is connected to a suction refrigerant inlet of an ejector. A second refrigerant channel includes a compressor and a second evaporator connected in that order. A refrigerant inlet of the second evaporator is connected to a mixed refrigerant outlet of the ejector. A third refrigerant channel branching off from a halfway point of a pipe connecting a refrigerant outlet of the radiator and the first flow control valve includes a third flow control valve and a motive refrigerant inlet of the ejector are connected in that order.

    摘要翻译: 无论油是否与制冷剂混溶或不混溶,制冷机油可靠地返回到压缩机。 第一制冷剂通道包括压缩机,冷凝器,第一流量控制阀,制冷剂储存容器,第二流量控制阀和第一蒸发器。 第一蒸发器的制冷剂出口连接到喷射器的吸入制冷剂入口。 第二制冷剂通道包括依次连接的压缩机和第二蒸发器。 第二蒸发器的制冷剂入口连接到喷射器的混合制冷剂出口。 从连接散热器的制冷剂出口和第一流量控制阀的管道的中途分支的第三制冷剂通道包括第三流量控制阀和喷射器的动力制冷剂入口的顺序连接。

    EJECTOR, MOTIVE FLUID FOAMING METHOD, AND REFRIGERATION CYCLE APPARATUS
    5.
    发明申请
    EJECTOR, MOTIVE FLUID FOAMING METHOD, AND REFRIGERATION CYCLE APPARATUS 审中-公开
    喷射器,动力流体发泡方法和制冷循环装置

    公开(公告)号:US20130000348A1

    公开(公告)日:2013-01-03

    申请号:US13583937

    申请日:2010-03-31

    IPC分类号: B05B7/04 F25B1/06

    摘要: A flow path of a nozzle included in an ejector includes a convergent taper portion in which the cross-sectional area of the flow path gradually decreases toward the downstream side, a cylindrical flow path extending from a downstream end of the convergent taper portion and being continuous for a predetermined length and in a cylindrical shape, and a divergent taper portion continuous with a downstream end of the cylindrical flow path and in which the cross-sectional area of the flow path gradually increases toward the downstream side. By providing the cylindrical flow path, a length of the divergent taper portion is reduced.

    摘要翻译: 包括在喷射器中的喷嘴的流路包括会聚锥形部分,其中流道的横截面积朝向下游侧逐渐减小,圆锥形流动路径从会聚锥形部分的下游端延伸并且是连续的 以及与圆柱形流动路径的下游端连续并且流路的横截面积朝向下游侧逐渐增加的发散锥形部分。 通过提供圆柱形流动路径,减小了发散锥形部分的长度。

    HEAT PUMP APPARATUS
    6.
    发明申请
    HEAT PUMP APPARATUS 有权
    热泵装置

    公开(公告)号:US20120111042A1

    公开(公告)日:2012-05-10

    申请号:US13384680

    申请日:2010-01-15

    IPC分类号: F25B49/00

    摘要: In a heat pump apparatus, it is aimed to enhance efficiency of a defrost operation by reducing a loss of heat radiation during the defrost operation and reducing a compressor input during the defrost operation. The heat pump apparatus includes a main refrigerant circuit in which a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger are connected sequentially, and also includes a bypass circuit including an on-off valve and providing a connection by bypassing the expansion mechanism. The main refrigerant circuit includes a four-way valve that switches between a heating operation and the defrost operation by switching an order in which the refrigerant circulates through the main refrigerant circuit. The main refrigerant circuit also includes a first temperature detection unit and a second temperature detection unit. Based on values detected by these temperature detection units, a degree of superheat of the first heat exchanger during the defrost operation is computed. When the heating operation is switched to the defrost operation, the heat pump apparatus increases a circulation amount of the refrigerant circulating through the refrigerant circuit by opening the on-off valve, and also controls an operation frequency of the compressor such that the degree of superheat is at a predetermined target value.

    摘要翻译: 在热泵装置中,旨在通过减少除霜操作期间的热辐射损失来提高除霜操作的效率,并且在除霜操作期间减少压缩机输入。 热泵装置包括:主制冷剂回路,其中压缩机,第一热交换器,膨胀机构和第二热交换器依次连接,并且还包括旁通回路,旁路回路包括开关阀,并通过旁路提供连接 扩张机制。 主制冷剂回路包括四通阀,其通过切换制冷剂通过主制冷剂回路循环的顺序而在加热操作和除霜操作之间切换。 主制冷剂回路还包括第一温度检测单元和第二温度检测单元。 基于这些温度检测单元检测出的值,算出除霜运转时的第一热交换器的过热度。 当加热操作切换到除霜操作时,热泵装置通过打开开关阀来增加通过制冷剂回路循环的制冷剂的循环量,并且还控制压缩机的操作频率使得过热度 处于预定的目标值。

    Heat pump apparatus
    7.
    发明授权
    Heat pump apparatus 有权
    热泵设备

    公开(公告)号:US09557085B2

    公开(公告)日:2017-01-31

    申请号:US13384680

    申请日:2010-01-15

    摘要: In a heat pump apparatus, it is aimed to enhance efficiency of a defrost operation by reducing a loss of heat radiation during the defrost operation and reducing a compressor input during the defrost operation. The heat pump apparatus includes a main refrigerant circuit in which a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger are connected sequentially, and also includes a bypass circuit including an on-off valve and providing a connection by bypassing the expansion mechanism. The main refrigerant circuit includes a four-way valve that switches between a heating operation and the defrost operation by switching an order in which the refrigerant circulates through the main refrigerant circuit. The main refrigerant circuit also includes a first temperature detection unit and a second temperature detection unit. Based on values detected by these temperature detection units, a degree of superheat of the first heat exchanger during the defrost operation is computed. When the heating operation is switched to the defrost operation, the heat pump apparatus increases a circulation amount of the refrigerant circulating through the refrigerant circuit by opening the on-off valve, and also controls an operation frequency of the compressor such that the degree of superheat is at a predetermined target value.

    摘要翻译: 在热泵装置中,旨在通过减少除霜操作期间的热辐射损失来提高除霜操作的效率,并且在除霜操作期间减少压缩机输入。 热泵装置包括:主制冷剂回路,其中压缩机,第一热交换器,膨胀机构和第二热交换器依次连接,并且还包括旁通回路,旁路回路包括开关阀,并通过旁路提供连接 扩张机制。 主制冷剂回路包括四通阀,其通过切换制冷剂通过主制冷剂回路循环的顺序而在加热操作和除霜操作之间切换。 主制冷剂回路还包括第一温度检测单元和第二温度检测单元。 基于这些温度检测单元检测出的值,算出除霜运转时的第一热交换器的过热度。 当加热操作切换到除霜操作时,热泵装置通过打开开关阀来增加通过制冷剂回路循环的制冷剂的循环量,并且还控制压缩机的操作频率使得过热度 处于预定的目标值。

    REFRIGERATION CYCLE APPARATUS AND REFRIGERANT CIRCULATION METHOD
    9.
    发明申请
    REFRIGERATION CYCLE APPARATUS AND REFRIGERANT CIRCULATION METHOD 有权
    制冷循环装置和制冷循环方法

    公开(公告)号:US20130042640A1

    公开(公告)日:2013-02-21

    申请号:US13583323

    申请日:2011-01-26

    IPC分类号: F25B41/00 B23P15/26

    摘要: An internal heat exchanger and a first flow control valve are connected in series between a condenser and a refrigerant inlet of an ejector. A gas refrigerant outlet of a gas-liquid separator is connected to a suction port of a compressor. A first bypass circuit connects a refrigerant outlet of the condenser to an intermediate pressure portion of the compressor via a second flow control valve and the internal heat exchanger. A second bypass circuit connects a refrigerant outlet of the internal heat exchanger to the liquid refrigerant outlet of the gas-liquid separator via a third flow control valve. While the second flow control valve is opened such that the refrigerant flows through the first bypass circuit, the fourth flow control valve is switched to be opened or closed, and the third flow control valve is switched to be closed or opened.

    摘要翻译: 内部热交换器和第一流量控制阀串联连接在冷凝器和喷射器的制冷剂入口之间。 气液分离器的气体制冷剂出口连接到压缩机的吸入口。 第一旁通回路通过第二流量控制阀和内部热交换器将冷凝器的制冷剂出口连接到压缩机的中间压力部分。 第二旁通回路经由第三流量控制阀将内部热交换器的制冷剂出口与气液分离器的液体制冷剂出口连接。 当第二流量控制阀被打开使得制冷剂流过第一旁路回路时,第四流量控制阀被切换为打开或关闭,并且第三流量控制阀被切换为关闭或打开。

    REFRIGERATION CYCLE APPARATUS AND REFRIGERANT CIRCULATION METHOD
    10.
    发明申请
    REFRIGERATION CYCLE APPARATUS AND REFRIGERANT CIRCULATION METHOD 有权
    制冷循环装置和制冷循环方法

    公开(公告)号:US20130025305A1

    公开(公告)日:2013-01-31

    申请号:US13636304

    申请日:2011-01-26

    IPC分类号: F25B7/00

    摘要: Refrigerating machine oil is reliably returned to a compressor, regardless of whether the oil is miscible or immiscible with a refrigerant. A first refrigerant channel includes a compressor, a condenser, a first flow control valve, a refrigerant storing container, a second flow control valve, and a first evaporator are connected in that order. A refrigerant outlet of the first evaporator is connected to a suction refrigerant inlet of an ejector. A second refrigerant channel includes a compressor and a second evaporator connected in that order. A refrigerant inlet of the second evaporator is connected to a mixed refrigerant outlet of the ejector. A third refrigerant channel branching off from a halfway point of the-a pipe connecting a refrigerant outlet of the radiator and the first flow control valve includes a third flow control valve and a motive refrigerant inlet of the ejector are connected in that order.

    摘要翻译: 无论油是否与制冷剂混溶或不混溶,制冷机油可靠地返回到压缩机。 第一制冷剂通道包括压缩机,冷凝器,第一流量控制阀,制冷剂储存容器,第二流量控制阀和第一蒸发器。 第一蒸发器的制冷剂出口连接到喷射器的吸入制冷剂入口。 第二制冷剂通道包括依次连接的压缩机和第二蒸发器。 第二蒸发器的制冷剂入口连接到喷射器的混合制冷剂出口。 从连接散热器的制冷剂出口和第一流量控制阀的管的中途点分支的第三制冷剂流路包括第三流量控制阀和喷射器的动力制冷剂入口以该顺序连接。