F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
317/5.7
F02P 3/04 (2006.01) F02B 61/04 (2006.01) F02B 63/04 (2006.01) F02P 1/00 (2006.01) H01F 13/00 (2006.01) H02K 15/03 (2006.01) H02K 39/00 (2006.01) F02B 75/02 (2006.01)
Patent
CA 1078916
Abstract of the Disclosure A two-cycle engine in such as an outboard motor includes an engine shaft and a flywheel mounted on the shaft and having an inner cylindrical hub portion. A rubber-like magnet strip is adhesively attached about the hub portion with an outer protective shield adhesively bonded to the strip. The strip includes upper and lower magnetic areas which are oppositely and radially magnetized to establish an axially directed field adjacent the outer periphery of the strip. A triggering coil unit includes a C-shaped core with the poles of the core radially aligned with the upper and lower areas of the magnet strip such that the field passes therethrough. The strip is magnetized after assembly by an electromagnetic unit having a semi-circular core with a U-shape cross-section aligned with the strip. A coil of a single turn or a plurality of turns are wound circumferentially in the semi- circular core to establish a magnetizing field directed from the semi-circular core radially into and through the one area of the strip to the hub, axially through the hub to the opposite area of the strip and returning to the core radially outwardly through the other area of the strip. The magnetizing field saturates the upper and lower areas of the strip to form oppositely polarized permanent magnets.
265640
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