US 12,422,034 B2
Filtering pulley
Gianluca Cariccia, Ivrea (IT); Andrea Guala, Ivrea (IT); Stefano Amadio, Ivrea (IT); and Jacopo Spinelli, Ivrea (IT)
Assigned to MUVIQ S.R.L., Ivrea (IT)
Appl. No. 18/560,200
Filed by DAYCO EUROPE S.R.L., Ivrea (IT)
PCT Filed May 17, 2022, PCT No. PCT/IB2022/054561
§ 371(c)(1), (2) Date Nov. 10, 2023,
PCT Pub. No. WO2022/243855, PCT Pub. Date Nov. 24, 2022.
Claims priority of application No. 102021000012614 (IT), filed on May 17, 2021.
Prior Publication US 2024/0240705 A1, Jul. 18, 2024
Int. Cl. F16H 55/36 (2006.01)
CPC F16H 55/36 (2013.01) [F16H 2055/366 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A filtering pulley comprising:
a hub adapted to be fixed to a shaft rotating around an axis (A),
a crown mounted coaxially and rotationally free on said hub,
at least one elastic group arranged circumferentially with respect to said hub and said crown and interposed, each, between a pair of first elements integral with said hub and between a pair of second elements integral with said crown,
a dust protection lip operatively seated in an annular groove in an annular flange of said hub and configured to slide, in tight manner, with respect to said crown, wherein said dust protection lip has a labyrinthine sealing lip, and is axially facing and cooperating in contact with an exterior radial wall of said crown.