Abstract: The invention relates to an energy converting device for energy systems (2) for convening mechanical energy into hydraulic energy and then into electric energy, said device using a control fluid (3) as the energy transporting medium. The control fluid is subjected to a variably changing pressure by at least one first converting device (5) that converts the mechanical energy into hydraulic energy. The energy converting device comprises at least one second subsequent convening device (7) that converts the hydraulic energy into electric energy. The invention is characterized in that the second convening device (7) is divided into a first control circuit (9) and a second control circuit (11), the two of which can be supplied with the control fluid (3) of variable pressure at the circuit input side (13) by the first convening device (7) and the two of which have predominantly different pressure levels.

Abstract: An energy converting device, particularly for converting mechanical energy to hydraulic energy and from it into electrical energy, uses as an energy transport medium, a control fluid guided in two different control circuits. The control circuits have an operative connection to each other by a coupling device (32). One control circuit (28) serves for feeding in energy, particularly in the form of mechanical energy. The other control circuit serves for discharging energy in the form of converted energy, particularly electrical energy.

Abstract: The invention relates to an energy converting device, particularly for converting mechanical to hydraulic energy, and therefrom into electrical energy, using as an energy transport medium a control fluid guided in two different control circuits having an operative connection to each other by means of a coupling device (32), wherein the one control circuit (28) serves for feeding in energy, particularly in the form of mechanical energy, and the other control circuit serves for discharging energy in the form of converted energy, particularly electrical energy.