NOVELTY - The hydrogen generating mechanism comprises: a container (107) to accommodate a fixed amount of fluid, where the container is made of graphite; a lid (118) for the container; and a foam (106) disposed in the container and soaked in the fluid, where the foam provides a maximized surface in contact with the fluid. The lid is present in electrical contact with the foam. The foam and the container are electrically insulated from each other, act as a pair of electrodes, and are applied with an amount of electrical power to cause electrolysis and pyrolysis to produce hydrogen and oxygen.    USE - The mechanism is useful for generating oxy-hydrogen (claimed) that is used as an energy source to empower machines running on combustion engines, where the machines comprise a vehicle.    ADVANTAGE - The maintenance-free on-demand high-efficient mechanism generates hydrogen with high yield and less consumption of electricity.    DETAILED DESCRIPTION - The hydrogen generating mechanism comprises: a container (107) to accommodate a fixed amount of fluid, where the container is made of graphite; a lid (118) for the container; and a foam (106) disposed in the container and soaked in the fluid, where the foam provides a maximized surface in contact with the fluid. The lid is present in electrical contact with the foam. The foam and the container are electrically insulated from each other, act as a pair of electrodes, and are applied with an amount of electrical power to cause electrolysis and pyrolysis to produce hydrogen and oxygen (oxy-hydrogen). The fluid contains a certain amount of electrolyte, and is replenished when the amount of the fluid in the container is below a predefined level, and delivered into the container by gravity or a pump. The electrolyte is delivered into the container by gravity or the pump. The electrical power is electronically pulsed electricity and helps to drive the fluid in the container to vibrate at an electrical resonance of the container. The foam is made of a highly conductive material. The foam similar to a sponge-like structure includes open holes. The mechanism further includes a mechanism to recycle used fluid from burning the hydrogen inside a combustion engine, and a mechanism to recycle used fluid from using the hydrogen inside a fuel cell to recover electricity from the hydrogen. The electrical power is provided from solar photovoltaic panels. An INDEPENDENT CLAIM is included for a method for generating hydrogen.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a cooling unit.    Foam (106)    Container (107)    Screws (108)    Holding structure (112)    Lid. (118)