The Gates Corporation

Essie Rahdar

Alexander Serkh

Yahya Hodjat

Anthony R Mora

Ilya Kleyman

Peter Ward

Xiaohua Joe Chen

Wanzhi Han

Charles M Sendegeya

An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.

Isolating decoupler

An isolator decoupler comprising a shaft, a pulley journalled to the shaft, a one-way clutch engaged with the shaft, a spring carrier engaged with the one-way clutch, the spring carrier having a spring carrier surface, a torsion spring having a first end laser welded to the pulley and a second end laser welded to the spring carrier, the torsion spring having a volute with a width w, an annular spring support member having a spring support member outside surface, the annular spring support member independently moveable from the spring carrier and independently moveable from the shaft, a gap g between the annular spring support member and the spring carrier, the gap g being less than the width w, the first end comprising a first end coil, the first end coil bearing upon the spring support member outside surface, the first end coil laser welded to the spring support member outside surface, a torsion spring radial contraction limited by engagement with the spring carrier surface, and the gap g and the width w have a relationship (w&#x2212;2r)&#x3e;(g+c1+c2) were g&#x3e;0.

Isolator decoupler

An isolating decoupler comprising a hub, a pulley journalled to the hub, a torsion spring having a first torsion spring end welded directly to the hub, a wrap spring having a first wrap spring end welded directly to a second torsion spring end, a wrap spring outer surface fictionally engaged with a pulley inner surface, and a wrap spring second end temporarily engagable with the torsion spring first end whereby the frictional engagement between the wrap spring outer surface and the pulley inner surface is progressively released as a torque load increases.

An isolating decoupler comprising a shaft, a pulley having a belt bearing portion, a one way clutch, a torsion spring, the torsion spring engaged between the pulley and the one-way clutch, and a single bearing disposed between the shaft and the pulley, the bearing comprising a radial centerline, the radial centerline aligned with a mid-line of the belt bearing portion.

An isolating decoupler comprising a shaft, a pulley journalled to the shaft, a torsion spring, the torsion spring comprising a flat surface planar in a plane normal to the rotation axis A-A on each end of the torsion spring, a one-way clutch engaged between the torsion spring and the shaft, a weld bead joining a torsion spring end to the one-way clutch, and a weld bead joining the other torsion spring end to the pulley.

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Costa Mesa, CA, United States of America

Essie Rahdar