Cascaded vane compressor
A technology for compressors and compression mechanisms, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as increasing the size of cascaded vane compressors, and achieve the effect of reducing manufacturing costs
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no. 1 approach ）
[0028] Such as figure 1 As shown, the cascade vane compressor of the first embodiment has a first side plate 11, a first cylinder block 5, a second side plate 13, a second cylinder block 7 and a third side plate 15, and the first side plate 11 , the first cylinder block 5, the second side plate 13, the second cylinder block 7 and the third side plate 15 are accommodated in the front housing member 1, the central housing member 2 and the rear housing member 3 coupled to each other fixed in the state. The front housing element 1 , the central housing element 2 and the rear housing element 3 form an outer shell 9 . The diameter of the casing 9 is the same as that of the single-cylinder type vane compressor. Furthermore, the first cylinder block 5 and the second cylinder block 7 have the same outer shape.
[0029] like figure 2 As shown, an elliptical first cylinder chamber 5 a in a direction perpendicular to the axis is also formed in the first cylinder block 5 . like image...
no. 2 approach ）
[0066] In the cascade vane compressor of the second embodiment, as Figure 4 As shown, a main upstream passage 11h is formed in the first side plate 11 to extend upward from the lower end. Furthermore, in the first side plate 11 is formed an annular main intermediate passage 11 i surrounding the shaft hole 11 a. The upper end of the main upstream passage 11h communicates with the main intermediate passage 11i. Furthermore, in the first side plate 11, two main downstream passages 11j for communicating with the main intermediate passage 11i extend rearward in the axial direction. The respective main downstream passages 11j are configured to communicate with the main back pressure chamber 33 during compression and during exhaust by the rotation of the first rotor 27 .
[0067] Furthermore, similarly to the first embodiment, a sub upstream passage 15 h , a sub intermediate passage 15 i and a sub downstream passage 15 j are formed in the third side plate 15 .
[0068] Furthermor...
no. 3 approach ）
[0073] In the cascade vane compressor of the third embodiment, as Figure 5 As shown, a sub-upstream passage 13p is formed in the second side plate 13 to extend upward from the lower end. Further, in the second side plate 13, a sub-middle passage 13q surrounding the shaft hole 13a is formed. The upstream end of the sub-upstream passage 13p communicates with the sub-intermediate passage 13q. Furthermore, in the second side plate 13, two sub-downstream passages 13r for communicating with the sub-middle passage 13q extend rearward in the axial direction. The respective sub-downstream passages 13r are configured to communicate with the sub-back pressure chamber 39 during compression and during exhaust by the rotation of the second rotor 29 .
[0074] Furthermore, similarly to the second embodiment, a first supply passage configured by the main upstream passage 11h , the main intermediate passage 11i , and the main downstream passage 11j is formed in the first side plate 11 .
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