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US 12,344,369 B2Granted
Helical dynamic seal ring
AssigneeGoodrich Corporation
InventorKyle M. Madey
Life of this patent
Estimating the term…
Abstract
A helically shaped dynamic seal ring is provided. The helically shaped dynamic seal ring includes a spirally wound body and a snubbing orifice area formed in the spirally wound body. The spirally wound body is configured to expand in response to contacting a snubbed stroke range of an actuator piston. The spirally wound body is configured to contract in response to distancing from the snubbed stroke range of the actuator piston.
Claims8
A landing gear assembly, comprising:
- an actuator cylinder;
- an actuator piston slidably disposed within the actuator cylinder;
- and
- a helically shaped dynamic seal ring, the helically shaped dynamic seal ring comprising:
- a spirally wound body;
- and
- a snubbing orifice area formed in the spirally wound body, wherein:
- the spirally wound body is configured to expand in response to contacting a snubbed stroke range of the actuator piston, and
- the spirally wound body is configured to contract in response to distancing from the snubbed stroke range of the actuator piston,
- wherein the helically shaped dynamic seal ring is configured to be positioned within a seal groove of a bearing and held within the seal groove via a snap ring,
- wherein the bearing is positioned within an end of the actuator cylinder and wherein the bearing is positioned around a shaft portion of the actuator piston, and
- wherein fluid is configured to flow between the helically shaped dynamic seal ring and a standard stroke range of the actuator piston and out an opening of the bearing in response to the helically shaped dynamic seal ring being distanced from the snubbed stroke range of the actuator piston.
9 more elements
An aircraft, comprising:
- a landing gear assembly, the landing gear assembly comprising:
- an actuator cylinder;
- an actuator piston slidably disposed within the actuator cylinder;
- and
- a helically shaped dynamic seal ring, the helically shaped dynamic seal ring comprising:
- a spirally wound body;
- and
- a snubbing orifice area formed in the spirally wound body, wherein:
- the spirally wound body is configured to expand in response to contacting a snubbed stroke range of the actuator piston, and
- the spirally wound body is configured to contract in response to distancing from the snubbed stroke range of the actuator piston,
- wherein the helically shaped dynamic seal ring is positioned within a seal groove of a bearing and wherein the helically shaped dynamic seal ring is held within the seal groove via a snap ring,
- wherein the bearing is positioned within an end of the actuator cylinder and wherein the bearing is positioned around a shaft portion of the actuator piston, and
- wherein fluid is configured to flow between the helically shaped dynamic seal ring and a standard stroke range of the actuator piston and out an opening of the bearing in response to the helically shaped dynamic seal ring being distanced from the snubbed stroke range of the actuator piston.
10 more elements
Dependencies are inferred from the claim text.