Internal-combustion engines – Precombustion and main combustion chambers in series
Patent
1980-08-29
1982-06-01
Nelli, Raymond A.
Internal-combustion engines
Precombustion and main combustion chambers in series
123254, 123266, 123DIG1, 123DIG7, 123143B, 123 4132, F02B 1910, F02P 2300, F02B 2300
Patent
active
043322239
ABSTRACT:
An improved ignitor and ignition method for igniting a wide variety of fuels that may be used to power various types of engines, or for use with other applications requiring the efficient combustion of fuel. The fuel to be burned is mixed with air to form a relatively lean first fuel/air mixture. This first fuel/air mixture is then injected into the primary combustion chamber, such as the combustion zone of a cylinder of an internal combustion engine, or similar combustion chamber of other types of fuel-burning apparatus. The first fuel/air mixture is ignited with a stream of hot ionized gas that is jetted into the primary combustion chamber from a precombustion or plasma-generating chamber. The plasma-generating chamber is in close proximity to the primary combustion chamber, with a plasma guide or discharge tunnel connecting the two. A fuel line connects a source of pressurized fuel to the plasma-generating chamber. Interposed in this fuel line are a backflow restrictor and a fuel vaporizor, thereby ensuring that only vaporized fuel passes into (and not out of) the plasma-generating chamber through the fuel line.
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patent: 3921605 (1975-11-01), Wyczalok
patent: 4096832 (1978-06-01), Caroll et al.
patent: 4265201 (1981-05-01), Gerry
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