of the energy conversion apparatus 10 of the invention is shown in fig1 and 2 two steel channels 71 and 72 secured to a steel plate or wooden platform 73 serve as a support for the apparatus reservoir 13 is in the form of a closed rectangular compartment positioned between the channels 71 and 72 at the rear of the apparatus 10 turbine 12 is secured to a vertical steel plate 74 plate 74 is supported by two triangular brackets 75 and 76 that rest atop channels 72 and 71 respectively engine 11 is supported by its attachment to turbine 12 the electronic ignition 16 and an automotive battery 77 which supplies electrical power to pump 55 ignition 16 and control 18 are mounted along the outside of channel 72 ignition coil 17 is mounted at the outside surface of bracket 76 fluid return line 45 as shown in fig2 passes through plate 74 at the lower edge of turbine 12 and turns downward to enter the top cover of reservoir 13 the output shaft 33 also extends through plate 74 pump 55 and valve 56 are mounted on plate 73 between channels 71 and 72 directly below turbine 12 reciprocating engine 11 has a finned outer shell 78 which aids in the dissipation of the heat produced by the burning hydrogen turbine 12 has two disc shaped sections 81 and 82 forward section 81 houses turbine wheel 32 and rearward section 82 serves as a splash plate that collects the fluid as it leaves vanes 35 and carries it to fluid exhaust port 39 in accordance with the stated objects of the invention the nonpolluting fuel hydrogen is converted to mechanical energy in reciprocating engine 11 transmission fluid.