Rotational coupling device with self-contained wet clutch pack

摘要

A rotational coupling device having a self-contained wet clutch pack and fluid isolated field shell is provided. The device includes a hub disposed about a rotational axis. A rotor is supported on, and configured for rotation about, the hub and defines a radially extending wall and a chamber on one side of the wall surrounding said hub and defining a sump containing a fluid. An armature is supported on the hub for rotation therewith within the chamber and axially spaced from the wall. A field shell is disposed on an opposite side of the rotor wall from the armature and houses a conductor. The field shell is isolated from the fluid in the chamber. Energization of the conductor urges the armature in a first axial direction towards the radially extending wall of said rotor to couple the rotor to the hub for rotation therewith.

主权项

1. A rotational coupling device, comprising:
a hub configured for coupling to a shaft for rotation with said shaft about an axis of rotation; a rotor supported on said hub and configured for rotation relative to said hub about said axis of rotation, said rotor including a first member defining a radially extending wall and a chamber on one side of said radially extending wall surrounding said hub, said chamber defining a sump containing a fluid; an armature supported on said hub for rotation therewith and disposed within said chamber, said armature disposed on a first side of said radially extending wall of said rotor and axially spaced from said radially extending wall of said rotor; and, a field shell disposed about said hub on a second side of said radially extending wall of said rotor opposite said armature, said field shell housing a conductor therein and said field shell and said conductor isolated from said fluid wherein energization of said conductor urges said armature in a first axial direction towards said radially extending wall of said rotor to couple said rotor to said hub for rotation therewith further comprising a spring biasing said armature in said first axial direction, said spring configured to counteract an opposing force biasing said armature in a second axial direction opposite said first axial direction.