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Refrigeration cycle apparatus

A refrigeration cycle and refrigerant technology, which is applied in the field of ejector refrigeration cycle devices and decompression devices, can solve the problems that the cycle efficiency cannot be fully improved, and the decompression efficiency cannot be fully improved, so as to achieve the effect of improving efficiency and cycle efficiency

Inactive Publication Date: 2011-05-25
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] As a result, in the decompression device disclosed in JP-A-8-159617, even if the flow of the refrigerant is rotated on the upstream side of the decompression part, the decompression efficiency ηn cannot be sufficiently improved.
Furthermore, even if it is applied to a refrigeration cycle device, the cycle efficiency cannot be sufficiently improved

Method used

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  • Refrigeration cycle apparatus
  • Refrigeration cycle apparatus
  • Refrigeration cycle apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0064] figure 1 An example of a refrigeration cycle apparatus including the ejector of the present invention is shown. This refrigeration cycle apparatus has a compressor 1, a radiator 2 for dissipating the heat of the high-pressure refrigerant discharged from the compressor 1, and a first throttling mechanism for reducing the pressure of the refrigerant on the downstream side of the radiator 2, that is, a decompressor. A device 3 and a flow distributor 10 having a plurality of flow passages for dividing the flow of the refrigerant decompressed by the decompressor 3 into a plurality of flows.

[0065] Furthermore, the refrigeration cycle device includes: taking in one refrigerant distributed by the flow distributor 10, injecting it from the nozzle 5a to form a high-speed refrigerant flow, and sucking the other refrigerant from the suction part 5b through the high-speed refrigerant flow. The ejector 5 of the ejector; the second evaporator 8 that takes in the refrigerant distr...

no. 2 approach

[0108] The second embodiment uses Figure 4 and Figure 5 The structure of the flow distributor 20 will be described. Figure 4 It is a top view showing the internal structure of the flow distributor of this embodiment, Figure 5 Yes Figure 4 The V-direction view. In addition, the refrigeration cycle apparatus to which the flow distributor 20 is applied is the same as the cycle demonstrated in 1st Embodiment.

[0109] The difference between the flow distributor 20 and the flow distributor 10 is that it has a structure that turns the refrigerant flow flowing into the nozzle portion 5 a side of the ejector 5 into a swirling flow. This embodiment has the same operation and effect as that of the first embodiment regarding other configurations.

[0110] like Figure 4 As shown, the flow distributor 20 has: a first flow passage 22 into which the refrigerant decompressed by the pressure reducer 3 flows in; a second flow passage 23 branching from the first flow passage 22 and f...

no. 3 approach

[0117] The third embodiment uses Figure 8 and Figure 9 , illustrating the structure of the flow distributor 30. Figure 8 It is a top view showing the internal structure of the flow distributor of this embodiment, Figure 9 Yes Figure 8 View from direction IX. In addition, the refrigeration cycle apparatus to which the flow distributor 30 is applied is the same as the cycle demonstrated in 1st Embodiment.

[0118] The difference between the flow distributor 30 and the flow distributor 20 is that the flow passage through which the refrigerant flowing into the nozzle portion 5a side of the ejector 5 flows is provided at a position higher in the weight direction than the other flow passages. This embodiment has the same operational effects as those of the first and second embodiments regarding other configurations.

[0119] like Figure 8 As shown, the flow distributor 30, like the flow distributor 20, has a first flow passage 32 into which the refrigerant depressurized ...

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PUM

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Abstract

The invention provides a refrigerating cycle device, comprising: a radiator (2) which radiates heat of high pressure refrigerant that is ejected from a compressor (1); pressure reducers (3, 3a) which reduce pressure of the refrigerant at the downstream of the radiator (2); flow dividers (10, 115) with flow paths which distribute the flow of the refrigerant, the pressure of which is reduced by thepressure reducers, into a plurality flows; an ejector (5) which carries down refrigerant of one side that is distributed by the flow dividers and high-speed refrigerant flows which are ejected from anozzle part (5a) and attracts refrigerant of the other side from an attracting part (5b) through the high-speed refrigerant flows; an evaporator (8) which carries down and vaporizes the refrigerant of the other side that is distributed by the flow dividers and flows out to the attracting part (5b). Therefore, the flow divider is provided with a distribution stream mechanism which distributes the flow-in refrigerant according to regulated amount.

Description

technical field [0001] The present invention relates to an ejector refrigeration cycle device with a flow distributor, and a decompression device for decompressing and expanding refrigerant in the refrigeration cycle device. Background technique [0002] Conventionally, as described in JP-A-2005-308384, a refrigeration cycle apparatus having an ejector as a mechanism for decompressing condensed refrigerant is known. This ejector has a nozzle part that takes in refrigerant on one side of the refrigerant flow branched from the branch part on the downstream side of the radiator and ejects it at high speed, and passes the refrigerant on the other branched side through the evaporator The part of attraction that attracts. [0003] However, in the refrigeration cycle apparatus described above, when the refrigerant guided to the inlet of the nozzle portion of the ejector is a supercooled liquid-phase refrigerant, there is a problem in that the efficiency of the nozzle is lowered. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B41/06F25B9/08F25B5/00
Inventor 松井秀也武内裕嗣西岛春幸山田悦久大村源太郎藤原良子
Owner DENSO CORP