Engine start promoting device

Internal-combustion engines – Starting device – For airplane

Patent

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Details

123179H, 123145A, F02N 1700, F02P 1902

Patent

active

041967127

ABSTRACT:
A glow plug is maintained at a desired operating temperature by using as its heat generating element a material which may be quickly heated, has a non-zero resistance-temperature coefficient and has a repeatable resistance value at the desired operating temperature. The heat generating element is used as one leg of a bridge circuit and when the bridge is balanced, the engine starter is energized and a short time later the current through the bridge is interrupted.

REFERENCES:
patent: 215818 (1965-11-01), Deuton
patent: 3745308 (1973-07-01), Lefferts
patent: 3946200 (1975-02-01), Jaodihis
patent: 4002882 (1977-01-01), McCutchen
patent: 4088109 (1978-05-01), Woodruff et al.
patent: 4106465 (1978-08-01), Bernhardt et al.

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