Internal-combustion engines – Igniters – Incandescent
Patent
1987-09-25
1989-04-25
Wolfe, Willis R.
Internal-combustion engines
Igniters
Incandescent
123169V, F02P 1902, F02N 1708
Patent
active
048237469
ABSTRACT:
The present invention provides an improved engine ignitor with integral pressure release vent to minimize flooding and/or hydraulic locking of internal combustion engines, particularly, single cylinder engines such as model airplane engines, lawn mower engines, and the like. In one embodied form, the unique engine ignitor comprises a glow plug including a threaded shell capable of being screwed into an engine cylinder block, a generally cylindrical heating head, a peripheral grip member disposed between the heating head and glow plug shell, and an integral vent element disposed on a peripheral portion of the threaded shell. In operation, once a user has discovered that an engine is flooded or hydraulically locked, the inventive glow plug is rotated within the combustion cylinder to allow the flooded chamber to vent. After the chamber has been vented, the operator will again rotate the glow plug in its original located position within the combustion cylinder.
REFERENCES:
patent: 960752 (1910-06-01), White
patent: 2795220 (1957-06-01), Atwood et al.
patent: 3079453 (1963-02-01), Clark
patent: 4124012 (1978-11-01), Fuller, Jr.
patent: 4214567 (1980-07-01), Goto
patent: 4469059 (1984-09-01), Hukill
patent: 4699096 (1987-10-01), Phillips
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