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[0010] In the previous application example, however, the refrigerant distributor needs to be connected to the ejector through the refrigerant pipe, and further connected to the first and second evaporators through other refrigerant pipes, resulting in a complicated structure of the refrigerant pipe, And further lead to the complex structure of the ejector type refrigerant cycle
[0011] In particular, when the ejector type refrigeration cycle is applied to an air conditioner of a vehicle, the installation space of the ejector type refrigeration cycle is limited in the vehicle, so that the complex structure of the ejector type refrigeration cycle results in a large cost associated with the installation of the cycle. The problem
Method used
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no. 1 example
[0045] based on Figures 1 to 3 , the first embodiment of the present invention will be described below. figure 1 It is an overall configuration diagram showing an example in which the ejector type refrigeration cycle device 10 of the present invention is applied to an air conditioner of a vehicle. In the ejector type refrigeration cycle 10, the compressor 11 is adapted to suck, compress, and discharge refrigerant. The compressor 11 is rotatably driven by receiving driving force transmitted from an engine (not shown) that operates the vehicle via a pulley and a belt.
[0046] The compressor 11 can use a variable capacity compressor capable of adjusting refrigerant discharge capacity according to changes in compression capacity, or a fixed capacity compressor that can adjust refrigerant discharge capacity by intermittently connecting an electromagnetic clutch to change the operating efficiency of the compressor. Using an electric compressor as the compressor 11, the refrigera...
no. 2 example
[0140] In the first embodiment described above, the first tubular portion 14a of the refrigerant distributor 14 has a linear shape. In the second embodiment, as Figure 7 As shown, the first tubular portion 33a of the refrigerant distributor 33 has a shape such that the end portion of the first tubular portion 33a on the downstream side of the refrigerant flow is bent at a right angle.
[0141] The second tubular portion 33b of the refrigerant distributor 33 is in the bending direction ( Figure 7 in the downward direction) in the opposite direction ( Figure 7 in the upward direction) to protrude.
[0142] In this embodiment, the throttle mechanism 18 is removed. In the present embodiment, the through hole 23a of the separation case 23 is disposed opposite to the downstream side opening of the first tubular portion 33a.
[0143] Therefore, the distance between the downstream side opening of the first tubular portion 33a and the through hole 23a can be shortened, thereby l...
no. 3 example
[0146] In the second embodiment described above, the second tubular portion 33b of the refrigerant distributor 33 protrudes from the outer peripheral surface at the upstream end of the refrigerant flow of the first tubular portion 33a. In the third embodiment, such as Figure 8 As shown, the second tubular portion 34b of the refrigerant distributor 34 protrudes from the outer peripheral surface of the middle portion of the first tubular portion 34a of the refrigerant distributor 34 in the refrigerant flow direction.
[0147] In addition, this embodiment can exhibit the same effect as the above-mentioned second embodiment.
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Abstract
A unit for an ejector type refrigeration cycle has an ejector (13), a first evaporator and a second evaporator (15, 16) parallelly connected to the downstream side of an exit (13e) of the ejector (13) and evaporating refrigerant discharged from the exit (13e), and a refrigerant distributer (14, 33-36) for distributing the refrigerant, which is discharge from the exit (13e), to the first evaporator (15) side and to the second evaporator (16) side. The ejector (13) sucks refrigerant from a refrigerant suction opening (13b) by using a high-speed refrigerant flow ejected from a nozzle (13a) for depressurizing and expanding the refrigerant, mixes the refrigerant ejected from the nozzle (13a) and the refrigerant sucked from the refrigerant suction opening (13b), and discharges the mixture from the exit (13e) of the ejector (13). The ejector (13) and the refrigerant distributor (14, 33-36) are interconnected so that the refrigerant discharged from the exit (13e) directly enters the refrigerant distributor (14, 33-36).
Description
technical field [0001] The present invention relates to a unit for an ejector type refrigeration cycle including an ejector and a refrigeration cycle device using the same. The refrigeration cycle device is suitable for use in an air-conditioning system of a vehicle. Background technique [0002] Conventionally, an ejector type refrigeration cycle including an ejector is disclosed in Patent Document 1. The ejector type refrigeration cycle disclosed in Patent Document 1 includes a first evaporator disposed on the downstream side of the ejector and a gas / liquid separator disposed on the downstream side of the first evaporator for separating refrigerant into a gas phase and liquid phase. The gas-phase refrigerant separated in the gas / liquid separator is sucked into the compressor. [0003] On the other hand, the liquid-phase refrigerant separated in the gas / liquid separator flows into the second evaporator, and the refrigerant flowing out of the second evaporator flows into ...
Claims
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