Starter for a thermal engine of a motor vehicle provided with a rotary electrical machine with an improved projecting pole inductor and corresponding pole shoe
AssigneeValeo Equipments Electriques Moteur
InventorsPierre MOLLON, Eric FOREL, Wilfried PAYS, Raphaël ANDREUX
Life of this patent
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Abstract
A motor vehicle heat engine starter comprising a rotary electric machine (5) that has a rotor (9) and a stator (8) and comprises a plurality of magnetic poles (65) arranged on an internal circumference of a yoke (66). Each magnetic pole (65) is made up of a salient pole shoe (69) surrounded by a winding (70). The starter is characterized in that an air gap (76), separating the rotor (9) from the magnetic poles (65) of the stator (8), varies according to the circumference thereof. The invention also relates to a corresponding pole shoe (69).
Claims21
Starter (1) for a thermal engine of a motor vehicle comprising a rotary electrical machine (5) provided with a rotor (9) and a stator (8), comprising a plurality of magnetic poles (65) arranged on an inner circumference of a head (66), wherein each magnetic pole (65) projects relative to the head surrounded by a winding (70), wherein an air gap (76) between a circumferential surface of at least two magnetic poles opposite a circumferential surface of said rotor and a circle with a radius of the exterior of the rotor (9) varies by at least 1 mm.
Pole shoe (69) belonging to an inductor of an electric starter motor (5) of a motor vehicle, wherein it comprises an inner face which is designed to be situated opposite a rotor (9) of said electric motor (5), with a discontinuity which breaks the regularity of an arc of a circle which defines part of said inner face (80).
Dependencies are inferred from the claim text.