Patent ID: 11879337
Assignee: SARUS
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The thermodynamic cycle process according to claim 1, wherein:
in said powering the liquid pump or the gas compressor with said retrieved energy, said cyclic free piston expander alternatively changes direction of said free piston sliding by alternatively:
closing said fluidic communication between said both opposite sides of said free piston, so as to make different from each other the pressures applied respectively thereon, so that said free piston then slides and accelerates in a first direction,
opening a fluidic communication between both opposite sides of said free piston, so as to make equal to each other the pressures applied respectively thereon, so that said free piston then slides and accelerates in a second direction opposite to said first direction,

said free piston sliding and accelerating, directly and mechanically, opening and closing, said fluidic communication.