NOVELTY - The device for the direct transformation of chemical energy into mechanical work, comprises two movable catalytic electrodes for carrying out a chemical reaction, and a mechanically distortable, flexible hydrogen muscle fiber for electrically separating the electrodes. The attraction between two electrodes resulting from an electro-chemical potential difference is used. The developed electrical field is directly used for the production of a power, which is changed over the flexible membrane in a linear motion. The hydrogen muscle fiber is connected in parallel to reach high total output.    USE - Device for the direct transformation of chemical energy into mechanical work (claimed).    ADVANTAGE - The device ensures the direct transformation of chemical energy into mechanical work without the detour of the heat production or additional aggregates.    DETAILED DESCRIPTION - The device for the direct transformation of chemical energy into mechanical work, comprises two movable catalytic electrodes for carrying out a chemical reaction, and a mechanically distortable, flexible hydrogen muscle fiber for electrically separating the electrodes. The attraction between two electrodes resulting from an electro-chemical potential difference is used. The developed electrical field is directly used for the production of a power, which is changed over the flexible membrane in a linear motion. The hydrogen muscle fiber is connected in parallel to reach high total output. The state of charging of the electrodes and contraction/elongation of the hydrogen muscle are electrically and mechanically controlled. The linear movement is converted into rotating motion at the same time the periodic contraction/elongation of the hydrogen muscle is coupled to the rotating motion. The construction is micro-structured. The choice of the chemical reaction is arbitrary.    DESCRIPTION OF DRAWING(S) - The diagram shows central unit of a hydrogen muscle.    Hydrogen electrode (1)    Flexible plastic (2)    Oxygen electrode (3)    Hydrogen (6a)    Oxygen. (6b)