A turbo pump includes: an impeller which pressurizes liquid, a turbine disk at which a blade cascade is provided; a shaft which connects the impeller and the turbine disk; a bearing which rotatably supports the shaft, and a housing which accommodates the impeller, the turbine disk, the shaft, and the bearing; a seal part which is provided between the bearing and the turbine disk; a slinger which is disposed between the bearing and the seal part and has a disk which is fixed to the shaft, and a plurality of wing parts which are provided on the seal part side of the disk; and a partition wall which partitions the inside of the housing into a pressure reduction chamber in which the wing parts of the slinger are disposed, and a bearing accommodation chamber in which the bearing is accommodated, the pressure reduction chamber and the bearing accommodation chamber being connected to each other through a clearance flow path.

A balance piston for a compressor is provided. The balance piston may include an annular body and a seal extending from an axial surface of the annular body. The annular body may be configured to be disposed about and coupled with a rotary shaft of the compressor. The seal may be configured to form a sealing engagement with at least one component of the compressor to prevent a flow of a process fluid from an impeller of the compressor to a seal cavity of the compressor.