Patent ID: 9721713
Date: 2017-08-01
CPC Classifications: F16D,H01F

Claim:
1. An electromagnetic solenoid assembly comprising: a cup-shaped ring defining a pocket, and including a radially extending portion, a radially inner axially extending flange, and a radially outer axially extending flange, an axially outer end of the radially outer axially extending flange includes a first inclined surface and an axially outer end of the radially inner axially extending flange includes a second inclined surface; an annular coil arranged in the pocket of the cup-shaped ring; a ring-shaped armature arranged adjacent to the cup-shaped ring, the ring-shaped armature including a radially outer portion and a radially inner portion, an axially outer end of the radially outer portion includes a third inclined surface and an axially outer end of the radially inner portion includes a fourth inclined surface; the first inclined surface and the third inclined surface are substantially parallel to and axially aligned with each other, and the second inclined surface and the fourth inclined surface are substantially parallel to and axially aligned with each other, and the first inclined surface, the second inclined surface, the third inclined surface, and the fourth inclined surface each consist of a single flat surface; and a distance between the ring-shaped armature and the cup-shaped ring is variable based on an energization state of the annular coil, wherein an angle differential between (1) the first inclined surface and the third inclined surface, or (2) the second inclined surface and the fourth inclined surface is between 0.5-2.5 degrees.