Patent ID: 9528526
Filing Date: 2016-12-27
CPC Classification: F02C,F04D,F25J

Claim Text:
1. An apparatus comprising: at least a first cooler; a first turbo compressor with an air outlet for conveying air compressed in said first turbo compressor to said first cooler; a second turbo compressor with an air intake; said first cooler connected between the air outlet of the first turbo compressor and the air intake of the second turbo compressor; wherein the apparatus further comprises: a shaft for rotating said first turbo compressor for increasing the pressure of the air to be supplied to an actuator; a turbine mounted on the same shaft as the first turbo compressor and the second turbo compressor; a control valve, by means of which the flow of compressed air produced by the second turbo compressor to the turbine is arranged to be adjusted; a motor arranged to rotate said shaft, wherein the apparatus is configured to use the air that has flowed through the turbine for cooling the motor.