Patent ID: 8127751

Claim:
A nitrous oxide injection system for an internal combustion engine, comprising: a) a source of pressurized nitrous oxide; b) a nitrous oxide flow line, in fluid communication with the source of pressurized nitrous oxide; c) an injection nozzle, in fluid communication with the nitrous oxide flow line and configured to be operatively coupled to an engine intake; d) a control valve fluidly coupled to the nitrous oxide flow line for allowing a flow of pressurized nitrous oxide to the injection nozzle; e) a methanol injection line, configured to be in fluid communication with a source of supplemental methanol and the engine intake, for providing supplemental methanol for injection into the engine intake; f) a methanol valve, fluidly coupled to the methanol injection line and operably coupled to the nitrous oxide flow line, the methanol valve being responsive to a flow of pressurized nitrous oxide through the nitrous oxide flow line to allow a flow of supplemental methanol to the engine intake; g) the injection nozzle being configured to simultaneously combine and deliver the flow of pressurized nitrous oxide and the flow of supplemental methanol into the engine intake; and h) the methanol valve further comprising a ported spool piston for generating a venturi jet to draw the flow of supplemental methanol from the methanol injection line in response to the flow of pressurized nitrous oxide into the nozzle.