Ignition apparatus and method for an internal combustion engine

Details Ignition apparatus and method for an internal combustion engine Ignition apparatus and method for an internal combustion engine

1976-08-26

1978-06-27

Lazarus, Ronald H.

Internal-combustion engines

Noncompression

123 32SJ, 123 4132, 123143B, 123169PA, F02B 1910

Patent

active

040968324

ABSTRACT:
An improved ignition device wherein a spark plug is provided with a torch chamber surrounding the spark gap. A first mixture of fuel-rich fuel and air is supplied to the torch chamber where it is ignited by a spark and propelled as a jet of burning fuel into the combustion zone of a cylinder of an internal combustion engine. The burning fuel from the torch chamber provides suitable ignition of a relatively lean second mixture of fuel and air in the combustion chamber which mixture is leaner than would otherwise be suitably ignited with a spark from a conventional spark plug. A porous plug in the fuel line acts as a one-way valve by allowing liquid fuel to pass by capillary and/or seepage action while resisting backflow caused by periodic high pressures within the combustion chamber. A cooling and heat-shielding system protects the fuel supply system against excessive heat absorption which would tend to prematurely vaporize the fuel and interfere with the valving apparatus.

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patent: 2723653 (1955-11-01), Blake et al.
patent: 3066662 (1962-12-01), May et al.
patent: 3102521 (1963-09-01), Slemmons
patent: 3809039 (1974-05-01), Alquist
patent: 3908625 (1975-09-01), Romy
patent: 3926169 (1975-12-01), Leshner et al.

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