Patent ID: 6915764

Claim:
A flywheel for an internal combustion engine including a two-stroke engine in a portable handheld work apparatus, the flywheel comprising: a body defining an axis of rotation; a vane configuration on said body for generating a flow of cooling air; a parallelopipedly-shaped permanent magnet carried by said body for a magnetic ignition system; said permanent magnet having a short edge, a center edge and a long edge; said permanent magnet being polarized in the direction of said short edge; said short edge of said permanent magnet running approximately tangential to the peripheral direction of said flywheel; said long edge of said permanent magnet being aligned approximately parallel to said axis of rotation; first and second pole shoes arranged on respective sides of said permanent magnet viewed in the peripheral direction; each of said pole shoes having a first end facing toward said permanent magnet and a second end facing away from said permanent magnet; said first end having an elevation (e) measured in the direction of said rotational axis and said second end having an elevation (f); and, said elevation (e) of said first end being greater than said elevation (f) of said second end.