Direct acting solenoid actuator

摘要

A direct acting solenoid actuator includes an armature and associated push pin that are suspended from certain fixed solenoid components, such as a pole piece and/or flux sleeve, by a fully floating cage of rolling elements. The fixed solenoid component may comprise a pole piece and/or a flux sleeve. The pole piece may include stops to limit movement of the cage of rolling elements in the axial direction.

主权项

1. A solenoid actuator comprising:
a movable armature member; a fixed solenoid component having:
a housing;a coil within said housing; anda pole piece for receiving said movable armature member; and, a cage of rolling elements disposed between the movable armature member and the fixed solenoid component; wherein the cage of rolling elements comprises a top portion and a bottom portion, and wherein the rolling elements are confined between the top portion and the bottom portion, the top portion including a semi-spherical top portion wall, the bottom portion including a semi-spherical bottom portion wall, each semi-spherical top and bottom portion wall partially encasing a bearing ball.