A working fluid turbo comprising an enclosed housing; an intake port; an exhaust port; at least two sets of a plurality of disks within the housing; and a shaft connected to at least one set of the at least two sets of plurality of disks. The at least two sets of a plurality of disks has a first set of disks aligned with the intake port and a second set of disks aligned with the exhaust port. The shaft connects to at least one set of the at least two sets of disks. The first set of disks and the second set of disks each include an end plate with X-shaped walls that forms an X-shaped disk shaft, whereby the X-shaped disk shaft allows the working fluid to move between solid disks and holed disks.