Vr Systems, Inc.

Thomas L Davis

Richard Baverstock

Don Bass

Jonathan T Uhl

Joseph W Perry

David E Potts

The invention provides a mixture control system for controlling the flow of vaporized hydrocarbons drawn into an engine for combustion and combining a supplemental fuel with the vaporized hydrocarbons as required to maintain a near stoichiometric mixture.

Mixture control unit for use with the control system of a soil venting

Mixture control unit system for soil venting apparatus

An apparatus and method are disclosed for accumulating hydrocarbon vapor and rendering the vapor environmentally safe by combustion. An internal combustion engine is attached to an interface which accumulates hydrocarbon vapor present in the soil after a spill or leakage from a storage tank or transfer lines. The vacuum of the internal combustion engine present in the intake manifold is used to draw the hydrocarbon vapors from the soil into the interface and then into the engine where they are burned. A catalytic converter of conventional design cleans the end exhaust removing any remaining hydrocarbon pollutants.

Apparatus and method for removing and burning hydrocarbon vapors using

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Long Beach, CA, United States of America

Thomas L Davis