Annular speed sensor

G - Physics – 01 – P

Patent

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Details

G01P 3/44 (2006.01)

Patent

CA 2049893

An in-axle annular rotational speed sensor assembly (52) for drive axles (10) is provided which mounts directly to the drive axle differential bearing adjusters (36) in a relatively available and protected space (50) within the axle housing. The assembly utilizes the ferromagnetic adjuster to define a portion of the magnetic flux path (108) and maintains a large axial separation between the adjuster and the air gap (102) between the arrays of rotor and stator teeth (82, 100).

La présente invention vise un bloc détecteur (52) de vitesse de rotation, annulaire, à monter dans un essieu moteur (10). Selon la variante concernée, des dispositifs de réglage (36) des paliers de l'essieu différentiel sont montés directement sur l'essieu moteur et sont disposés dans un espace (50) en grande partie protégé, à l'intérieur du boîtier de l'essieu. Le bloc détecteur utilise les dispositifs de réglage ferromagnétiques pour définir une partie du champ magnétique (80) et ainsi maintenir un bon écart, dans le plan axial, entre les dispositifs de réglage et l'entrefer (102) rotor/stator (82, 100).

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