Flame-type heater plug for an air-compression fuel-injection int

Electric heating – Heating devices – Resistive element: igniter type

Patent

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Details

123145A, 12317921, 1231796, 361264, 431208, H05B 300, F23Q 700, F02P 1902

Patent

active

051824370

ABSTRACT:
A flame-type heater plug for an internal combustion engine includes a plug housing having a proportioning insert for the fuel supply, a heater bar secured at one end in the plug housing with a free end extending outwardly of the plug housing, and an evaporation tube extending along a substantial length of the plug housing from the proportioning insert and surrounding the heating bar to form an annular interspace therebetween. The free end of the heater bar extends from the evaporator tube and is surrounded by a flame tube including passage orifices for passage of intake air into the interior of the flame tube. A helical swirl channel on the outer surface of the heating bar in the plug housing forms a fuel connection between the proportioning insert and the evaporator tube opening into the annular interspace. The passage orifices may be provided with deflectors to prevent direct contact of the heating bar by the air flowing therethrough.

REFERENCES:
patent: 3630184 (1971-12-01), Wolf et al.
patent: 3689195 (1972-09-01), Beesch et al.
patent: 3718425 (1973-02-01), Weyl et al.
patent: 4459948 (1984-07-01), Bauer

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