US 12,292,057 B2
Fluid machine
Masahiro Akiyama, Tokyo (JP); and Yosuke Akamatsu, Tokyo (JP)
Assigned to IHI Corporation, Tokyo (JP)
Appl. No. 17/905,679
Filed by IHI Corporation, Tokyo (JP)
PCT Filed Apr. 15, 2020, PCT No. PCT/JP2020/016579
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2021/210097, PCT Pub. Date Oct. 21, 2021.
Prior Publication US 2023/0110735 A1, Apr. 13, 2023
Int. Cl. F04D 29/58 (2006.01); F04D 17/10 (2006.01); F04D 25/06 (2006.01)
CPC F04D 29/5813 (2013.01) [F04D 25/068 (2013.01); F04D 29/5806 (2013.01); F04D 17/10 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A fluid machine comprising:
a motor part having a rotating shaft, an electric motor configured to rotate the rotating shaft, and a motor housing configured to accommodate the electric motor;
an inverter part having an inverter unit configured to supply drive power to the motor part, and an inverter housing connected to the motor housing in an axial direction of the rotating shaft and configured to accommodate the inverter unit, wherein the inverter unit comprises electronic components, and the inverter housing comprises a cylindrical side wall, a cylinder axis of the cylindrical side wall is aligned with a rotation axis of the rotating shaft;
a cooling fan provided on the rotating shaft and configured to allow cooling air to flow through the inverter housing and the motor housing in order, wherein the cooling fan is disposed at an end of the motor housing opposite to an end of the motor housing at which the inverter housing is disposed, the cylindrical side wall of the inverter housing comprises an intake port for the cooling air, and the electronic components of the inverter unit are disposed facing the intake port of the inverter housing in a radial direction; and
an impeller provided on the rotating shaft, wherein the impeller is separate from the cooling fan,
wherein the inverter unit is disposed to be arranged with respect to the electric motor in the axial direction of the rotating shaft.