Two-stage centrifugal compressor for fuel cell
A centrifugal compressor, fuel cell technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of reducing the output power of the fuel cell, increasing the power consumption of the compressor, and increasing the power consumption of the compressor. System volume and weight, the effect of improving output power and reducing parasitic power
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Embodiment 1
[0025] Such as figure 1 Shown: a two-stage centrifugal compressor for fuel cells, including a turbine 1, a motor 2, a high-pressure compressor 3, a low-pressure compressor 4, connecting pipelines and a fuel cell stack 6, and the turbine 1 is radial turbine.
[0026] Such as figure 2 As shown: the high-pressure stage compressor includes a high-pressure impeller 31 and a high-pressure volute 32, and the high-pressure impeller 31 is a radial flow impeller or a mixed flow impeller.
[0027] The low-pressure stage compressor 4 includes a low-pressure impeller 41 and a low-pressure volute 42, the low-pressure impeller 41 is a radial flow impeller or a mixed-flow impeller, and the low-pressure volute is a circumferential annular outlet.
[0028] The motor includes a motor rotor and a stator. The motor shaft is the rotor. The motor shaft is mechanically connected to the high-pressure compressor impeller and the low-pressure compressor impeller. One end of the motor shaft is connect...
Embodiment 2
[0034] Such as figure 1 Shown: a two-stage centrifugal compressor for fuel cells, including a turbine 1, a motor 2, a high-pressure compressor 3, a low-pressure compressor 4, connecting pipelines and a fuel cell stack 6, and the turbine 1 is radial turbine.
[0035] Such as figure 2 As shown: the high-pressure stage compressor includes a high-pressure impeller 31 and a high-pressure volute 32, and the high-pressure impeller 31 is a radial flow impeller or a mixed flow impeller.
[0036] The low-pressure stage compressor 4 includes a low-pressure impeller 41 and a low-pressure volute 42, the low-pressure impeller 41 is a radial flow impeller or a mixed-flow impeller, and the low-pressure volute is a circumferential annular outlet.
[0037] The motor includes a motor rotor and a stator. The motor shaft is the rotor. The motor shaft is mechanically connected to the high-pressure compressor impeller and the low-pressure compressor impeller. One end of the motor shaft is connect...
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