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公开(公告)号：US20180087848A1
公开(公告)日：2018-03-29
申请号：US15544601
申请日：2016-01-21
Applicant: DENSO CORPORATION
Inventor： Gouta OGATA , Yuichi SHIROTA , Hiroya HASEGAWA , Tatsuhiro SUZUKI , Makoto IKEGAMI
CPC classification number: F28F9/0246 , F25B1/00 , F25B5/04 , F25B39/02 , F25B39/022 , F25B41/00 , F25B2341/0011 , F25B2400/0407 , F25B2500/18 , F25B2600/2501 , F28D1/03 , F28D1/0341 , F28D9/0043 , F28F3/08 , F28F9/0263 , F28F9/0265
Abstract: An ejector-integrated heat exchanger includes multiple tube forming members. The tube forming member includes an ejector, a flow-out side refrigerant passage, and a suction side refrigerant passage. The ejector includes a nozzle portion decompressing a refrigerant, a refrigerant suction port, and a pressure increasing portion in which the refrigerant drawn from the refrigerant suction port and the refrigerant jetted from the nozzle portion are mixed, a pressure of the mixed refrigerant being increased in the pressure increasing portion. In the flow-out side refrigerant passage, the refrigerant flowing out of the pressure increasing portion performs heat exchange while flowing. In the suction side refrigerant passage, the refrigerant that is to be drawn through the refrigerant suction port performs heat exchange while flowing. Multiple tube forming members are arranged such that the refrigerant flows in parallel with each other.
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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
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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公开(公告)号：US20190128569A1
公开(公告)日：2019-05-02
申请号：US16225444
申请日：2018-12-19
Applicant: DENSO CORPORATION
Inventor： Kazuhiro TADA , Hiroya HASEGAWA , Satoshi ITO , Mikiharu KUWAHARA
Abstract: An ejector refrigeration circuit includes a compressor, a heating heat exchanger, a first decompressor, an exterior heat exchanger, a second decompressor, a cooling heat exchanger, a heating ejector, a heating-side gas-liquid separator, and a refrigerant circuit switch. The refrigerant circuit switch switches between a refrigerant circuit in a first dehumidifying-heating mode and a refrigerant circuit in a second dehumidifying-heating mode. A flow direction of the refrigerant through the exterior heat exchanger in the first dehumidifying-heating mode is the same as a flow direction of the refrigerant through the exterior heat exchanger in the second dehumidifying-heating mode. The flow direction of the refrigerant through the exterior heat exchanger in the first dehumidifying-heating mode is different from a flow direction of the refrigerant through the exterior heat exchanger in the heating mode.
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