Method of operating I. C. engines and apparatus thereof

Details Method of operating I. C. engines and apparatus thereof Method of operating I. C. engines and apparatus thereof

1989-02-17

1990-01-30

Argenbright, Tony M.

Internal-combustion engines

Igniters

Incandescent

123179H, 219270, 431268, F02P 1900, F02P 2302

Patent

active

048966363

ABSTRACT:
Operation of unthrottled internal combustion engines is improved by providing the combustion chambers with an electrically heated glow plug having a catalyst surface layer on the ignition element. The catalyst is heated to and maintained at a temperature high enough to be effective for vaporization of fuel drops and ignition of vaporized fuel by controlled electrical heating. In operation of the engine air is compressed in a combustion chamber and at least a portion of the fuel is injected during the latter portion of the compression stroke and the injected fuel ignited by contact of fuel with the hot catalytic surface of the glow plug resulting in a combustion pressure wave in the immediate vicinity of top dead center.

REFERENCES:
patent: 4345555 (1982-08-01), Oshima et al.
patent: 4658772 (1987-04-01), Auth et al.

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