Abstract: An energy converter transmission uses a throughshaft clutch and a through-shaft energy converter for transfer of energy to and from a shaft. The energy converter includes a housing and a rotor mounted to a hollow coupling shaft. The energy converter can be an hydraulic, a pneumatic or an electric energy converter. A first clutch element is also mounted to the coupling shaft. A second clutch element is mounted to the main drive shaft which passes through the hollow coupling shaft. Actuation of the clutch engages the clutch elements to couple the main drive shaft to the rotor via the clutch and coupling shaft.

Abstract: A rotary machine usable as a pump, compressor, turbine or motor, for example. Rotating piston cylinders have radially movable pistons therein and the cylinders are mounted within a control ring and a housing. The control ring is tangentially pivoted within the housing to vary the volume flow through the machine and the torque application transmitted by a shaft, as well as the direction of flow through the machine. Pressure fluid operated balancing pistons are used to counter the axial thrust placed on the rotor by liquids applied to the rotor, regardless of the direction of flow through the machine.