CLUTCH DEVICE FOR DIFFERENTIAL

WIPO Patent Application WO/2023/127147

A1

This invention provides a clutch device used in a differential gear set that differentially distributes torque to a pair of side gears from a case that is supported on a carrier via bearings and that rotates around an axis. Said clutch device comprises: a clutch member that engages the case in order to rotate together with the case, and that can move in an axial direction between an uncoupled position of being uncoupled from the differential gear set and a coupled position of coupling in a driving manner any gear of the differential gear set to the case; an actuator, which includes an electromagnetic coil that produces a magnetic flux, a core surrounding the electromagnetic coil in order to guide the magnetic flux, and a plunger fitted in contact with the core so as to be able to slide in the axial direction in order to receive the magnetic flux and generate thrust in the axial direction, the core slidably contacting the case and protruding axially outward from an axially inner end of the bearing, and the plunger being positioned between the bearing and the clutch member and coming into contact with the clutch member to transmit the thrust to the clutch member; and a rotation-stopping member fixed to the core and extended toward the carrier in order to engage the carrier and stop the core from rotating.

OHASHI KAZUHIRO (JP)
KOMATSU TOSHIAKI (US)

PCT/JP2021/048941

July 06, 2023

December 28, 2021

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GKN AUTOMOTIVE LTD (GB)
GKN DRIVELINE JAPAN LTD (JP)

F16H48/34

JP2012238783A	2012-12-06
JP2010078137A	2010-04-08
JP2009228840A	2009-10-08
JP2007092990A	2007-04-12
JP2010133518A	2010-06-17

MIYOSHI Hidekazu et al. (JP)

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