Nozzle for mixing oxidizer with fuel
AssigneeNitrous Express, Inc.
InventorsJohn M. Wood, John T. Stewart
Life of this patent
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Abstract
A nitrous oxide nozzle for inserting a mixture of oxidizer and fuel into a passage of an engine's intake manifold has two inlet ports, each of which communicate with a conduit. A nitrous oxide conduit vents into the apex of a bell-shaped emitter, and a fuel conduit vents into a side portion of an atomizing cavity adjacent the emitter, so that high-pressure nitrous oxide gas flowing through the emitter entrains fuel flowing through the fuel conduit, then atomizes the fuel and mixes with the fuel. The bell shape of the emitter provides improved mixing of fuel with the nitrous oxide; the discharged fuel/oxidizer mixture from the emitter is introduced into air flowing through an engine's intake manifold, and is conveyed to a cylinder for burning.
Claims8
In a nitrous oxide supply system of a type having a nozzle for introducing a mixture of fuel and oxidizer into an intake manifold of an internal-combustion engine, said nozzle including two inlet ports, and a body with a fuel conduit and a nitrous oxide conduit, wherein the improvement comprises:
- said nozzle body having a bell-shaped emitter proximate an end of said body,
- said nitrous oxide conduit having an outlet communicating with an apex of said bell-shaped emitter,
- an atomizing cavity adjacent an outlet of said emitter,
- said fuel conduit having an outlet communicating with a side portion of said atomizing cavity, whereby said fuel is entrained by and mixed with a flow of nitrous oxide as the nitrous oxide flows from said bell-shaped emitter through said atomizing cavity.
A method of mixing nitrous oxide with fuel for introduction via a nozzle into an intake manifold of an internal-combustion engine, said nozzle having a body including two inlet ports, a fuel conduit and a nitrous oxide conduit, comprising the following steps:
- introducing nitrous oxide into said nitrous oxide conduit,
- passing the nitrous oxide through said nitrous oxide conduit to an apex of said bell-shaped emitter,
- venting the nitrous oxide through said bell-shaped emitter,
- passing the nitrous oxide through an atomizing cavity adjacent an outlet of said emitter, and
- introducing fuel into said atomizing cavity via a fuel conduit having a vent communicating with a side portion of said atomizing cavity, whereby said fuel is entrained by and mixed with a flow of nitrous oxide as the nitrous oxide flows through said atomizing cavity.
Dependencies are inferred from the claim text.