Mixture control unit for soil venting apparatus

Abstract From the Canadian patent

Spills of hydrocarbons into soil, hydrocarbon gases generated by materials in land fills, and residual vapors in empty storage tanks must be extracted and disposed of to prevent environmental impact through air pollution toxic hazard, or, explosion hazard. This invention relates to an automatic mixture control system for an internal combustion engine connected to vaporize and burn waste hydrocarbons from a source gas comprising a fuel mixture sensor interconnected to the engine; a mixing chamber attached to an intake manifold of the engine the mixing, chamber adapted to receive air and mixture control fuel; and a mixture control means connected to the mixing chamber for receiving source gas …