US 11,835,133 B2
Variable spacing flange pulley for variable-speed drive
Xavier Moine, Toulouse (FR); and Guillaume Lhermite, Toulouse (FR)
Assigned to VITESCO TECHNOLOGIES GMBH, Hanover (DE)
Appl. No. 17/264,996
Filed by VITESCO TECHNOLOGIES GmbH, Hannover (DE)
PCT Filed Jul. 18, 2019, PCT No. PCT/EP2019/069396
§ 371(c)(1), (2) Date Feb. 1, 2021,
PCT Pub. No. WO2020/025343, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 1857212 (FR), filed on Aug. 1, 2018.
Prior Publication US 2021/0324946 A1, Oct. 21, 2021
Int. Cl. F16H 9/12 (2006.01); F16H 9/14 (2006.01); F16H 9/18 (2006.01)
CPC F16H 9/125 (2013.01) [F16H 9/14 (2013.01); F16H 9/18 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pulley comprising:
a shaft;
a fixed shroud mounted to be unable to move longitudinally with respect to the shaft;
a movable shroud mounted to be driven in rotation by the shaft but configured to move longitudinally with respect to the shaft;
a casing including a peripheral wall; and
a mechanism configured to mechanically control the longitudinal movement of the movable shroud with respect to the shaft, the mechanism comprising
a first assembly mounted on the shaft and driven in rotation by the shaft,
a second assembly mounted on the shaft by at least one torsion spring housing in the casing such that the relative angular position of the second assembly with respect to the shaft depends on the torque transmitted by the shaft, and
a locking system configured to lock in at least one position, the locking system being provided between the first assembly and the second assembly, the locking system comprising a radially extending finger and a hole defined in the peripheral wall of the casing, the radially extending finger being configured to project into the hole.