AC generator
AssigneeDenso Corporation
InventorKiyoshi Fudono
Life of this patent
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Abstract
An AC generator includes a rotor composed of a pair of generally cylindrical pole cores each having a plurality of claw poles. The claw poles have first and second chamfers disposed respectively on both leading and trailing sides thereof. A ratio b/a between a circumferential width a of the first chamfer and a circumferential width b of the second chamfer is in a range from 2.5 to 5.0, and a chamfered angle .theta.r.degree. of the second chamfer is in a range from 60.degree. to 75.degree..
Claims4
An AC generator including a stator, a rotor composed of a generally cylindrical pole core having a plurality of claw poles facing said stator for supplying magnetic field to said stator, wherein
- said claw poles have first and second chamfers disposed respectively on both leading and trailing sides thereof;
- a ratio b/a between a circumferential width a of said first chamfer and a circumferential width b of said second chamfer is in a range from 2.5 to 5.0;
- and
- a chamfered angle .theta.r.degree. of said second chamfer is in a range from 60.degree. to 75.degree..
Dependencies are inferred from the claim text.