Multi-fuel plasma injector
The inventive subject matter provides apparatus, systems and methods for treating and delivering a fuel to a combustion chamber of an engine in order to improve efficiency of the engine. In one aspect of the invention, a fuel injector that cooperates with an internal combustion engine to combust a first fuel to produce power is presented. The fuel injector includes a fuel inlet, a pre-conditioning vortex chamber, and an excitation chamber. The fuel injector includes a vortex chamber that conforms a pulsed amount of the first fuel to produce a vortex that includes a coherent dynamic pressure wave. The fuel injector also includes an excitation mechanism that at least partially ignites the fuel.
1. A fuel injector that cooperates with an internal combustion engine to combust a first fuel to produce power, comprising:
a vortex chamber having a surface topology that conforms a pulsed amount of the first fuel to a vortex comprising a coherent dynamic pressure wave, wherein the surface topology comprises a pattern of features including at least one of bumps, dimples, cavities, ridges, grooves, and wedges; and
an excitation mechanism that at least partially ignites the fuel.
2. The fuel injector of claim 1 , wherein the vortex chamber has an elliptical flow form.
3. The fuel injector of claim 1 , wherein the pattern of features has at least one feature with a depth of at least 0.1 mm.
4. The fuel injector of claim 1 , wherein the pattern of features has at least one feature with a length of at least 0.2 mm.
5. The fuel injector of claim 1 , wherein the pattern of features is configured to produce a rotating movement of the first fuel.
6. The fuel injector of claim 5 , wherein surface topology includes a second pattern of the features configured to produce a counter-rotating movement of the first fuel.
7. The fuel injector of claim 3 , wherein the pattern of features is configured to produce a resonance within the vortex of the first fuel.
8. The fuel injector of claim 1 wherein the vortex chamber comprises a flow guide that entrains the first fuel pulse to produce a coherent downstream flow pattern.
9. The fuel injector of claim 8 , wherein the downstream flow pattern comprises a coherent ring vortex.
10. The fuel injector of claim 9 , wherein the coherent ring vortex has a higher concentration of fuel in a center portion of the vortex than in a radial portion of the vortex.
11. The fuel injector of claim 1 , wherein the excitation mechanism is positioned to excite the first fuel with an excitation chamber, and further comprising a vortex-inducing horn positioned at an upstream end of the excitation chamber.
12. The fuel injector of claim 1 , further comprising a de Laval nozzle positioned at a downstream end of the vortex chamber.
13. The fuel injector of claim 1 , wherein the excitation mechanism is positioned to excite the first fuel within an excitation chamber.
14. The fuel injector of claim 1 , wherein the excitation mechanism comprises a radio frequency generator.
15. The fuel injector of claim 1 , wherein the excitation mechanism comprises an ultrasonic atomizer.
16. The fuel injector of claim 15 , wherein the ultrasonic atomizer comprises a piezo-electric material.
17. The fuel injector of claim 15 , wherein the excitation mechanism comprises a radio frequency generator having an output that is phase coupled with an output of the ultrasonic atomizer.
18. The fuel injector of claim 1 , wherein the excitation mechanism is positioned to excite the first fuel with an excitation chamber, and wherein the excitation chamber includes a component that emits a radio frequency radiation.
19. The fuel injector of claim 18 , wherein the radio frequency radiation has a sufficient intensity to at least partially ionize a pulsed amount of a second fuel.
20. The fuel injector of claim 18 , wherein the excitation chamber has an outer conductor and an inner conductor operable to produce a plasma from a pulsed amount of a second fuel.
21. The fuel injector of claim 1 , further comprising a dual actuating solenoid.
22. An internal combustion engine comprising the fuel injector of claim 1 , wherein the vortex chamber is configured to receive the pulse of a first fuel through a first fuel inlet, and a pulse of a second fuel through a second fuel inlet.
23. The internal combustion engine of claim 22 , wherein the first fuel has a different chemical composition from the second fuel.
24. The internal combustion engine of claim 22 , wherein the first fuel has the same chemical composition as the second fuel.
25. The internal combustion engine of claim 22 , wherein the first fuel enters the vortex chamber as an air/fuel mixture.
26. The internal combustion engine of claim 25 , wherein the excitation mechanism is positioned to excite the second fuel with an excitation chamber, and is operable to use the second fuel to ignite the first fuel.
27. The internal combustion engine of claim 22 , further comprising a combustion cylinder having a cylinder inlet, and wherein the excitation chamber is positioned to provide a pulsed flame front to the cylinder inlet.