H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 49/02 (2006.01) H02P 15/00 (2006.01)
Patent
CA 2535135
A rotational control apparatus (10) includes a first rotatable assembly (20) and a second rotatable assembly (96). The first assembly (20) is rotatably mounted to a first support mount (12). The second assembly (96) is rotatably mounted to the first assembly (20) and is axially moveable relative to the first assembly (20). The first and second assemblies (20, 96) have respective coaxial surfaces (28, 106A) adjacent to and spaced from one another and further have respective axial surfaces (46, 102) that frictionally engage one another when the second assembly (96) is in a first axial position and disengage when the second assembly (96) is in a second axial position. The second assembly (96) is capable of rotation independent of the first assembly (20) when the second assembly (90) is in the second axial position. The rotational control apparatus (10) includes an eddy current drive (132) comprised of a first eddy current coupling assembly (134) associated with the coaxial surface (28) of the first assembly (20) and a second eddy current coupling assembly (136) associated with the coaxial surface (1 06A) of the second assembly (96), the second eddy current coupling assembly (136) adjacent the first eddy current coupling assembly (134) with an air gap (114) therebetween.
L'invention concerne un appareil de commande rotationnel (10) comprenant un premier ensemble rotatif (20) et un second ensemble rotatif (96). Le premier ensemble (20) est monté rotatif sur un premier bâti de support (12). Le second ensemble (96) est monté rotatif sur le premier (20) et axialement mobile par rapport à ce dernier (20). Les premier et second ensembles (20, 96) possèdent des surfaces coaxiales respectives (28, 106A), adjacentes et espacées l'une de l'autre, et comportent, en outre, des surfaces axiales respectives (46, 102) qui se couplent par frottement lorsque le second ensemble (96) se trouve dans une première position axiale et se désengagent lorsque le second ensemble (96) se trouve dans une seconde position axiale. Le second ensemble (96) peut effectuer une rotation indépendante par rapport au premier ensemble (20) lorsque le deuxième ensemble (96) est dans la seconde position axiale. L'appareil de commande rotationnel (10) est alimenté par des courants de Foucault (132), notamment un premier ensemble de couplage de courants de Foucault (134) associé à la surface coaxiale (28) du premier ensemble? ¿(20) et un second ensemble de couplage de courants de Foucault (136) associé à la surface coaxiale (106A) du second ensemble (96), le second ensemble de couplage de courants de Foucault (136) étant adjacent au premier (134) avec un espace d'air (114) entre eux.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Horton Inc.
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