Engine including speed-control starter interlock

Details Engine including speed-control starter interlock Engine including speed-control starter interlock

1977-09-07

1979-09-18

Lazarus, Ronald H.

Internal-combustion engines

Starting device

For airplane

123185A, 123185B, 74534, 74850, 74873, 56 105, F02N 1700, F02N 102, G05G 508, A01D 7528

Patent

active

041679296

ABSTRACT:
Disclosed herein is an engine including a timer plate which is operable to concurrently adjust the engine spark and the setting of the engine throttle valve, a rotatable starter mechanism, and a starter interlock for preventing engine starting when the timer plate is at a predetermined advanced speed setting. The starter interlock includes a resilient, unitary blocking element having a cam follower portion and a pawl portion which is movable between a normal nonoperating position and an operating position to prevent rotation of the engine starter mechanism and further includes a projection on the timer plate which is located to selectively engage the blocking element cam follower portion and move the pawl portion to the operating position when the timer plate is moved to the predetermined advanced speed setting.

REFERENCES:
patent: 2500076 (1950-03-01), Honeyman
patent: 2723655 (1955-11-01), Shimanckas
patent: 2906251 (1959-09-01), Soder, Jr.
patent: 3906921 (1975-09-01), Tillotson et al.
patent: 3958398 (1976-05-01), Fuelling, Jr. et al.
patent: 3971353 (1976-07-01), Harkness et al.

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