Refrigeration cycle device with injector
A refrigeration cycle and ejector technology, applied in the field of refrigeration cycle devices, can solve the problems of reducing the cooling performance of the first and second evaporators, difficult to adjust the amount of refrigerant, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 example
[0026] figure 1 It is a schematic diagram showing a vapor compression refrigeration cycle device 1 according to a first embodiment of the present invention. This embodiment shows an example in which the refrigeration cycle device 1 is applied to a vehicle.
[0027]The refrigeration cycle device 1 of the embodiment includes a plurality of compressors (for example, two compressors, a first compressor 11 and a second compressor 21 ) for sucking and compressing refrigerant. The first compressor 11 and the second compressor 21 are variable displacement compressors (variable displacement compressors) that can adjust the refrigerant discharge capacity according to the change of the discharge amount, or are variable displacement compressors that can adjust the refrigerant speed by adjusting the rotation speed of the motor. Discharge capacity electric compressor (electric compressor).
[0028] The first radiator 12 is provided on the refrigerant discharge side of the first compressor...
no. 2 example
[0076] Next, refer to image 3 and Figure 4 A second embodiment of the present invention is described below.
[0077] Compared with the above-mentioned first embodiment, the difference between the second embodiment and the first embodiment is that the decompression device for the refrigerant flowing into the second evaporator is a variable decompression device (variable decompression means). In the second embodiment, elements common to those of the first embodiment are assigned the same reference symbols, and thus descriptions of these elements will be omitted hereinafter.
[0078] like image 3 As shown in , in the second embodiment, the decompression device of the refrigerant branch path 20 is an electronic expansion valve 23A. The controller 100 adjusts the amount of refrigerant pressure reduction by adjusting the opening degree of the electronic expansion valve 23A.
[0079] like Figure 4 As shown in , after step S130, the controller 100 determines whether the opera...
no. 3 example
[0087] Next, the Figure 5 to Figure 9 A third embodiment of the present invention is described below.
[0088] The main difference of the third embodiment from the first embodiment is that the flow rate of the refrigerant flowing in the second evaporator 24 is adjusted according to the degree of superheat of the refrigerant after the heat exchange. In the third embodiment, elements common to those of the first embodiment are assigned the same reference symbols, and thus descriptions of these elements will be omitted hereinafter.
[0089] like Figure 5 As shown in , in the refrigeration cycle device 1 of the embodiment, the high pressure sensor 91 for detecting the refrigerant pressure on the high pressure side of the refrigerant circulation path 10 is provided at the first A downstream side of the compressor 11 and an upstream side of the first radiator 12 . Further, a high pressure sensor 92 for detecting the refrigerant pressure on the high pressure side of the refriger...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More