Nitrous oxide/methanol injection system

A nitrous oxide injection system for combining nitrous oxide and methanol prior to injection into an internal combustion engine, comprising:

• an injection nozzle having an axial bore bounded by sidewalls, a nitrous oxide inlet port, a methanol inlet port, a nozzle exit operatively coupled to an engine intake, and containing a methanol valve therein, the methanol valve being configured to open in response to a flow of pressurized nitrous oxide into the nozzle;
• a nitrous oxide flow line, in fluid communication with the nitrous oxide inlet port and configured to be coupled with a source of pressurized nitrous oxide;
• a methanol line, in fluid communication with the methanol inlet port and configured to be coupled with a source of methanol, for providing a flow of supplemental methanol for injection into the engine intake;
• a control valve fluidly coupled to the nitrous oxide flow line between the injection nozzle and the source of pressurized nitrous oxide, wherein activating the control valve allows the flow of pressurized nitrous oxide into the nozzle to open the methanol valve and combine with the flow of supplemental methanol prior to injection into the internal combustion engine;
• and
• the injection nozzle further comprising a secondary fuel inlet port extending through the sidewalls and entering the axial bore adjacent the nozzle exit.

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 injection system being configured to combine a flow of secondary fuel with the flow of supplemental methanol prior to delivery into the engine intake.

A nitrous oxide injection system for combining nitrous oxide and methanol prior to injection into an internal combustion engine, comprising:

• an injection nozzle having a nozzle housing with an axial bore bounded by sidewalls, a nitrous oxide inlet port, a methanol inlet port, the axial bore being closed at one end and open at the other end to form a nozzle exit operatively coupled to an engine intake, and containing a methanol valve disposed within the axial bore and including a ported spool piston configured to open and generate a venturi jet to draw the flow of supplemental methanol from the methanol line in response to a flow of pressurized nitrous oxide into the nozzle;
• a nitrous oxide flow line, in fluid communication with the nitrous oxide inlet port and configured to be coupled with a source of pressurized nitrous oxide;
• a methanol line, in fluid communication with the methanol inlet port and configured to be coupled with a source of water/methanol mixture, for providing a flow of supplemental water/methanol mixture for injection into the engine intake;
• a control valve fluidly coupled to the nitrous oxide flow line between the injection nozzle and the source of pressurized nitrous oxide, wherein activating the control valve allows the flow of pressurized nitrous oxide into the nozzle to open the methanol valve and combine with the flow of supplemental methanol prior to injection into the internal combustion engine.