Compact energy cycle construction utilizing some combination of a scroll type expander, pump, and compressor for operating according to a rankine, an organic rankine, heat pump, or combined organic rankine and heat pump cycle

A compact energy cycle construction that utilizes a working fluid in its operation, comprising:

• a compact housing of a cylindrical form,
• a plurality of energy cycle devices disposed within said housing and interconnected to form an integrated system operable in accordance with an energy cycle, at least two of which energy cycle devices share a common rotatable hollow shaft;
• an evaporator located within the rotatable hollow shaft;
• said energy cycle device is one of a Rankine Cycle, an Organic Rankine Cycle, a Heat Pump Cycle, or a Combined Heat Pump and Organic Rankine Cycle;
• said rotatable hollow shaft includes a central passageway therethrough for the transit through said hollow shaft of the working fluid;
• said system effecting circulation of the working fluid in a torus within said housing as said system operates, and the working fluid flowing through the rotatable hollow shaft for an evaporation process of the working fluid to take place within the rotatable hollow shaft and the working fluid flowing within the housing in a first path and a second path for a condensation process of the working fluid to take place, the first path and the second path sharing the evaporator but having distinct condenser flow paths;
• and
• a heat transfer portion in the energy cycle construction that employs a heat transfer fluid during its operation, said heat transfer portion disposed along said hollow shaft and including a heat transfer fluid conduit spirally wrapped about said hollow shaft, said conduit being spaced outwardly from said hollow shaft to define a space therebetween and having a fluid inlet and a fluid outlet, and heat transfer fins disposed along said hollow shaft and said conduit in the space therebetween.