Flapper check valve bumper
AssigneeHS Wroclaw Sp. Z.o.o.
InventorBlazej Olszowy
Life of this patent
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Abstract
A check valve includes a housing, a flap, a hinge, at least one post, and at least one tubular bumper. The hinge allows the flap to rotate relative to the housing between a fully open position and a closed position. The at least one post is disposed at or near the periphery of the housing supporting the hinge and extending axially relative to the housing from the housing. The at least one tubular bumper is movable with the flap and configured to contact the at least one post when the flap pivots to the fully open position.
Claims19
A check valve comprising:
- a housing;
- a flap;
- a hinge that allows the flap to rotate relative to the housing between a fully open position and a closed position;
- at least one post disposed at or near the periphery of the housing supporting the hinge and extending axially relative to the housing from the housing;
- and
- at least one tubular bumper movable with the flap and configured to contact the at least one post when the flap pivots to the fully open position;
- wherein the at least one post is rounded at a location where the at least one tubular bumper contacts the post when the flap is in the fully open position;
- and
- wherein the at least one tubular bumper has a cylindrical tubular shape, and is configured to flex upon impact with the at least one post.
A check valve comprising:
- a housing;
- a flap;
- a hinge that allows the flap to rotate relative to the housing between a fully open position and a closed position;
- at least one post disposed at or near the periphery of the housing supporting the hinge and extending axially relative to the housing from the housing;
- and
- at least one tubular bumper movable with the flap and configured to contact the at least one post when the flap pivots to the fully open position;
- and
- a second post disposed at or near the periphery of the check valve, diametrically opposite the at least one post, extending axially relative to the housing from the housing, the second post supporting the hinge.
A method of operating a check valve, the method comprising:
- rotating a flap about a hinge and relative to a check valve housing in response to a fluid flow;
- and
- contacting at least a first post and a second post each extending axially relative to the housing from the housing and supporting the hinge, with at least one tubular bumper movable with the flap to stop rotation of the flap;
- wherein the first post is disposed at or near the periphery of the housing;
- and
- wherein the second post is disposed at or near the periphery of the check valve, diametrically opposite the first post.
Dependencies are inferred from the claim text.