![]() ![]() ![]() Misfires can also be caused by fuel delivery problems (dirty or dead fuel injectors, or low fuel pressure), or loss of compression (a burned exhaust valve or blown head gasket). But, many times, misfires have nothing to do with ignition or the lack thereof. ![]() Misfiring can occur if a plug is worn or fouled. Laser ignition systems are many years away from production, so until spark plugs are made obsolete our readers will still play an important role in handling the service issues associated with conventional spark plugs, including misfiring, plug longevity and serviceability. Ordinary fiber optic cable can’t handle the energy needed for a laser ignition system, so Colorado State developed a new silver-lined, helium-filled fiber optic cable that can handle higher laser outputs. Colorado State University has reportedly developed a special high-energy glass fiber optic cable that can route the laser beams directly into the combustion chambers. Laser ignition, which uses laser diodes to generate the laser beams, will work with standard 12-volt electrical systems. It also works better than a spark for alternative fuels such as propane and natural gas. This has obvious benefits for fuel economy and emissions. Some ignition systems use multiple sparks now to reduce misfires and emissions, but the laser ignition could do it many times faster, and with a degree of timing precision unavailable with today’s spark ignition technology.Īnother advantage of using a laser-generated plasma discharge to ignite the air/fuel mixture instead of a spark is that much leaner air/fuel mixtures can be used. The extremely quick burst of energy created by the hot plasma discharge also means multiple ignitions could be triggered by rapidly pulsing the laser beam. With laser ignition, there are no electrodes to obstruct the propagation of the flame front inside the combustion chamber. It could even occur directly within the discharge cone of a high-pressure direct fuel injector. ![]() Starting the flame kernel more toward the center of the combustion chamber can improve fuel economy, power and emissions. Thus, the point of ignition can be optimized for the most efficient burn. One advantage of laser ignition is that the beam can be projected anywhere inside the combustion chamber. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2023
Categories |