Abstract: An electric turbomachine for use with an internal combustion engine, a turbocharger or a fuel cell e-compressor includes a high-speed electrical machine located internally within a housing that is arranged to be rotationally driven by a shaft about a rotational axis; a compressor that is arranged to compress fluid within a turbo compressor when it is rotationally driven about the rotational axis by the shaft; a power electronics assembly that is arranged to supply power to the electrical machine; and a control assembly that is arranged to control the power supplied by the power electronics assembly to the electrical machine. The power electronics assembly is mounted externally on the housing on a first surface of the housing, and the control assembly is mounted externally on the housing on a second surface of the housing.

Abstract: An electric turbomachine for use with an internal combustion engine, a turbocharger or a fuel cell e-compressor, said electric turbomachine comprising: a high-speed electrical machine located internally within a housing that is arranged to be rotationally drive a shaft (30) about a rotational axis (R); a compressor that is arranged to compress fluid within a turbo compressor when it is rotationally driven about the rotational axis (R) by the shaft; and a power electronics assembly (190) that is arranged to supply power to the electrical machine; a control assembly (230) that is arranged to control the power supplied by the power electronics assembly to the electrical machine, wherein the power electronics assembly is mounted externally on the housing (50) on a first surface of the housing and the control assembly is mounted externally on the housing on a second surface of the housing.

Abstract: An electric turbomachine for use with an internal combustion engine, turbocharger or a fuel cell e-compressor, said electric turbomachine comprising: a compressor (20) that is arranged to compress fluid within a turbo compressor when it is rotationally driven about a rotational axis (R) by a shaft, said shaft being rotational supported by a drive-end bearing (65) and a non-drive-end bearing (85), and a high-speed electrical machine located within a housing (50) that is arranged to rotationally drive the shaft about the rotational axis (R); said housing comprising a drive-end wall (60) that the shafts extends through to rotationally drive the compressor, a non-drive- end wall (80) at the opposing end of the electric turbomachine to the compressor, and a side wall (55) that extends between the drive-end wall and the non-drive-end wall, and wherein the electric turbomachine comprises a cooling system (330), for receiving a flow of a coolant fluid to cool the electric turbomachine, that is integrated within the h