Combustion – With repair – assembly or disassembly adjunct
Patent
1988-11-23
1989-08-08
Green, Randall L.
Combustion
With repair, assembly or disassembly adjunct
431258, 431263, 431264, F23D 1136
Patent
active
048548570
ABSTRACT:
An electric spark type torch ignitor comprises an ignitor housing tube within which is disposed an electric ignitor. The ignitor housing tube has open forward and rear ends. The forward end is fitted to an annular shelter chamber within which the forward tip end of the electric ignitor is disposed. The electric ignitor is slid into the ignitor housing tube via the open rear end, and is located within the tube by means of several circumferentially spaced dimples that project inwardly from the wall of the tube, the electric ignitor having a shoulder that abuts these dimples. The dimples have inclined surfaces that act upon the shoulder in such a manner that the electric ignitor is centered within the tube so that an annular passageway is created around the electric ignitor within the tube. A resilient retaining spring clip acts to resiliently urge the electric ignitor forwardly within the ignitor housing tube thereby keeping the electric ignitor's shoulder against the dimples. Because the ignitor housing tube is located with respect to the shelter chamber, the tip of the electric ignitor is also located with respect to the shelter chamber. A combustible mixture is passed forwardly through the annular passage into the shelter chamber where it is ignited by a spark from the ignitor tip to create a flame that is emitted from the forward end of the torch ignitor.
REFERENCES:
patent: 2880792 (1959-04-01), Raskin
patent: 3073121 (1963-01-01), Baker et al.
patent: 3718425 (1973-02-01), Weyl et al.
patent: 4669974 (1987-06-01), Sawada et al.
Gas Research Institute
Green Randall L.
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