Hydraulic damper having a ring
A hydraulic damper comprising a moveable rod, a collar, and a ring. The moveable rod having a centerline axis. The collar circumscribing and coupled to the moveable rod. The ring axially adjacent the collar and having an inner wall, an outer wall, a first wall, and a second wall. The inner wall circumscribing the moveable rod. The outer wall circumscribing the inner wall. The ring further having a boss provided on the first wall.
1 . A hydraulic damper comprising:
a moveable rod having a centerline axis;
a collar circumscribing and coupled to the moveable rod; and
a ring axially adjacent the collar, the ring comprising:
an inner wall extending circumferentially about the centerline axis and circumscribing the moveable rod;
an outer wall extending circumferentially about the centerline axis, the outer wall circumscribing the inner wall;
a first wall interconnecting the inner wall and the outer wall at a first end of the ring, the first wall being axially adjacent the collar;
a second wall, axially spaced from the first wall, interconnecting the inner wall and the outer wall at a second end, axially opposing the first end, of the ring; and
a boss provided along a portion of the first wall and defining a raised portion of the first wall, the boss terminating prior to the inner wall, the boss forming a contact point defining a fluid-tight seal with the collar during a first stroke of the hydraulic damper.
2 . The hydraulic damper of claim 1 , wherein the boss extends radially between an inner end and an outer end, with the inner end defining the contact point.
3 . The hydraulic damper of claim 2 , wherein the inner end extends continuously, circumferentially about the centerline axis between circumferentially distal ends of the first wall.
4 . The hydraulic damper of claim 1 , wherein a gap is formed between the boss and the collar during a second stroke, opposing the first stroke, of the hydraulic damper.
5 . The hydraulic damper of claim 1 , wherein the boss extends radially inwardly from the outer wall and towards the inner wall.
6 . The hydraulic damper of claim 5 , wherein the boss terminates radially prior to the inner wall.
7 . The hydraulic damper of claim 1 , wherein the ring further comprises a set of exterior channels extending axially along the outer wall between the first wall and the second wall.
8 . The hydraulic damper of claim 7 , wherein each exterior channel of the set of exterior channels includes a cross-sectional area when viewed along a plane perpendicular to the centerline axis, the cross-sectional area being non-constant from the first wall to the second wall.
9 . The hydraulic damper of claim 7 , wherein the set of exterior channels extend through the boss.
10 . The hydraulic damper of claim 1 , wherein the ring further comprises a set of interior channels extending axially along the inner wall between the first wall and the second wall.
11 . The hydraulic damper of claim 10 , wherein the set of interior channels include a series of peaks and valleys.
12 . The hydraulic damper of claim 11 , wherein the boss terminates radially prior to the valleys.
13 . The hydraulic damper of claim 1 , wherein the ring further comprises a set of connecting channels extending radially along the second wall between the inner wall and the outer wall.
14 . The hydraulic damper of claim 1 , wherein the first wall includes a first distal end and a second distal end, with the boss extending continuously between the first distal end and the second distal end.
15 . The hydraulic damper of claim 1 , further comprising a spacer provided radially between the inner wall and the moveable rod.
16 . A ring for a hydraulic damper having a moveable rod having a centerline axis, the ring comprising:
an inner wall extending circumferentially about the centerline axis and circumscribing the moveable rod;
an outer wall extending circumferentially about the centerline axis, the outer wall circumscribing the inner wall;
a first wall interconnecting the inner wall and the outer wall at a first end of the ring;
a second wall, axially spaced from the first wall, interconnecting the inner wall and the outer wall at a second end, axially opposing the first end, of the ring; and
a boss provided along a portion of the first wall and defining a raised portion of the first wall, the boss terminating prior to the inner wall, the boss positioned and shaped to form a contact point defining a fluid-restricting seal with a corresponding portion of the hydraulic damper during a first stroke of the hydraulic damper.
17 . The ring of claim 16 , wherein the boss extends radially inwardly from the outer wall and towards the inner wall.
18 . The ring of claim 17 , wherein the boss terminates radially prior to the inner wall.
19 . The ring of claim 16 , wherein the first wall includes a first distal end and a second distal end, with the boss extending continuously between the first distal end and the second distal end.
20 . The ring of claim 16 , further comprising a set of interior channels defined by a series of peaks and valleys, with the ring terminating radially prior to the valleys.