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    REFRIGERATION CYCLE DEVICE
    2.
    发明申请
    REFRIGERATION CYCLE DEVICE 审中-公开
    制冷循环装置

    公开(公告)号：US20160280041A1

    公开(公告)日：2016-09-29

    申请号：US15027120

    申请日：2014-09-22

    Applicant: DENSO CORPORATION

    Inventor： Tatsuhiro SUZUKI ,  Gouta OGATA ,  Yuichi SHIROTA

    IPC: B60H1/00 ,  F25B41/04 ,  F25B43/00 ,  F25B41/06

    CPC classification number: B60H1/00921 ,  B60H1/00392 ,  B60H1/0075 ,  B60H2001/3298 ,  F25B1/06 ,  F25B1/10 ,  F25B5/04 ,  F25B41/04 ,  F25B41/062 ,  F25B43/006 ,  F25B2341/0012 ,  F25B2400/0409 ,  F25B2400/0411 ,  F25B2500/31 ,  F25B2600/112 ,  F25B2600/2501 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2600/2519 ,  F25B2700/1931 ,  F25B2700/2103 ,  F25B2700/2104 ,  F25B2700/2106 ,  F25B2700/21152 ,  F25B2700/2117

    Abstract: An ejector draws a refrigerant on a downstream side of an exterior heat exchanger serving as an evaporator, from a refrigerant suction port by a suction effect of an injection refrigerant injected from a nozzle portion for decompressing a part of the refrigerant discharged from a compressor, and mixes the injection refrigerant with the suction refrigerant to pressurize the mixed refrigerant at a diffuser. The refrigerant flowing out of the diffuser is drawn into the compressor. In this way, the density of the refrigerant drawn into the compressor can be increased, thereby suppressing reduction in flow amount of the refrigerant flowing into an interior condenser serving as a radiator. Thus, even if the temperature of the outside air (heat-absorption target fluid) is decreased, the interior condenser is prevented from degrading its heating capacity for the ventilation air (heating target fluid).

    Abstract translation: 喷射器从作为蒸发器的外部热交换器的下游侧的制冷剂从制冷剂吸入口通过从喷嘴部分喷射的喷射制冷剂的吸入效应吸引从压缩机排出的一部分制冷剂减压， 将注射制冷剂与吸入制冷剂混合以在扩散器上对混合的制冷剂加压。 从扩散器流出的制冷剂被吸入压缩机。 以这种方式，可以提高吸入压缩机的制冷剂的密度，从而抑制流入作为散热器的内部冷凝器的制冷剂的流量的减少。 因此，即使外部空气（吸热性目标流体）的温度降低，也能够防止内部冷凝器降低通风用空气（加热对象流体）的加热能力。

    EJECTOR REFRIGERATION CYCLE
    3.
    发明申请
    EJECTOR REFRIGERATION CYCLE 审中-公开
    喷油器制冷循环

    公开(公告)号：US20170045269A1

    公开(公告)日：2017-02-16

    申请号：US15304667

    申请日：2015-05-18

    Applicant: DENSO CORPORATION

    Inventor： Gouta OGATA ,  Yuichi SHIROTA ,  Hiroya HASEGAWA ,  Tatsuhiro SUZUKI

    IPC: F25B1/06 ,  F25B41/06 ,  F25B5/02

    CPC classification number: F25B1/06 ,  F25B1/00 ,  F25B5/02 ,  F25B40/00 ,  F25B41/00 ,  F25B41/067 ,  F25B2341/0011

    Abstract: In an ejector refrigeration cycle, an inlet of a nozzle portion of an ejector is connected to a refrigerant outlet side of a high-stage side evaporator, a refrigerant suction port of the ejector is connected to a refrigerant outlet side of a low-stage side evaporator, and an internal heat exchanger is provided for exchanging heat between a high-pressure refrigerant flowing into a low-stage side throttle device for decompressing the refrigerant flowing into the low-stage side evaporator, and a low-stage side low-pressure refrigerant flowing out of the low-stage side evaporator. Because a difference in enthalpy between the inlet and outlet of the low-stage side evaporator can be enlarged, the cooling capacities exhibited by the respective evaporators can be adjusted to be closer to each other even if the flow-rate ratio Ge/Gn of the suction refrigerant flow rate Ge to the injection refrigerant flow rate Gn is set to a relatively small value so as to make it possible to improve the COP of the cycle.

    Abstract translation: 在喷射器制冷循环中，喷射器的喷嘴部分的入口连接到高级侧蒸发器的制冷剂出口侧，喷射器的制冷剂吸入口连接到低级侧的制冷剂出口侧 蒸发器和内部热交换器，用于在流入低级侧节流装置的高压制冷剂之间进行热交换，用于减压流入低级侧蒸发器的制冷剂和低级侧低压制冷剂 流出低压侧蒸发器。 由于可以扩大低级侧蒸发器的入口和出口之间的焓差，所以即使各个蒸发器的流量比Ge / Gn相对于各蒸发器的冷却能力也可以相互调整， 将吸入制冷剂流量Ge与喷射制冷剂流量Gn设定为相对较小的值，从而能够提高循环的COP。

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