F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
317/5.4
F02P 1/08 (2006.01) F02B 63/02 (2006.01) F02P 11/02 (2006.01)
Patent
CA 1310356
ABSTRACT A breakerless electronic ignition system including a permanent magnet assembly (50), a transformer (16,28), an electronic ignition circuit (34) and a cut off switch (24). In one embodiment of the system, a charging coil (10) charges up a capacitor (12). The capacitor (12) is connected in series with an electronic switching device (14) and a primary coil (16) of the transformer. The transformer primary coil (16) has one end connected to the cut off switch (24) which is normally closed and which is connected to ground (26). When the cut off switch (24) is in the open position, current is prevented from flowing through the primary coil (16) whereas the electronic switching device (14) continues to be triggered as the engine coasts to a stop. In an inductive embodiment of the system, the primary coil of the transformer is also lifted from ground by the cut off switch to stop further generation of ignition sparks.
548393
Borden Ladner Gervais Llp
Tecumseh Products Company
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