Firewall sealing assembly
AssigneeHoneywell International Inc.
InventorMark R. Cummings
Life of this patent
Estimating the term…
Abstract
A firewall sealing assembly is provided for use between a firewall and a penetrating member. The assembly comprises a primary seal, a secondary seal, and a plurality of retaining rings. The primary seal is configured to provide a primary seal between the firewall and the penetrating member. The secondary seal is configured to provide a secondary seal between the firewall and the penetrating member. The secondary seal is positioned spaced apart from the primary seal to define a seal cavity there between.
Claims16
A firewall sealing assembly configured to be mounted to a firewall and around a penetrating member, the firewall sealing assembly comprising:
- first and second retaining rings each having an opening formed therein through which the penetrating member is received when the firewall sealing assembly is mounted to the firewall;
- a primary seal retained between the first and second retaining rings and configured to sealingly engage an outer surface of the penetrating member when the firewall sealing assembly is mounted to the firewall;
- a secondary seal disposed adjacent the second retaining ring substantially opposite the primary seal and configured to sealingly engage an outer surface of the penetrating member when the firewall sealing assembly is mounted to the firewall;
- and
- an anti-friction plate disposed adjacent the secondary seal substantially opposite the second retaining ring;
- wherein the first and second retaining rings, the primary seal, and the anti-friction plate cooperate with the penetrating member and the firewall to define first and second seal cavities when the firewall assembly is mounted to the firewall, the first seal cavity axially bounded by the primary seal and the secondary seal and radially bounded by an inner peripheral edge of the second retaining ring and an outer surface of the penetrating member, and the second seal cavity axially bounded by the secondary seal and the firewall and radially bounded by an inner peripheral edge of the anti-friction plate and an outer surface of the penetrating member.
A firewall sealing assembly configured to be mounted to a firewall and around a penetrating member, the firewall sealing assembly comprising:
- a plurality of substantially annular seals;
- and
- a plurality of retaining rings positioned in an alternating pattern with the plurality of substantially annular seals and configured to retain the plurality of substantially annular seals against the penetrating member when the firewall sealing assembly is mounted to the firewall, at least one of the plurality of retaining rings radially spaced from an outer surface of the penetrating member when the firewall sealing assembly is mounted to the firewall to form an annular seal cavity proximate the penetrating member configured to contain backside flames that burn through the primary seal;
- wherein the plurality of annular seals is axially spaced apart by and captured against the penetrating member by the plurality of retaining rings.
A firewall sealing assembly configured to be mounted to a firewall and around a penetrating member, the firewall sealing assembly comprising:
- first and second retaining rings;
- a primary seal disposed between the first and second retaining rings;
- a secondary seal disposed adjacent the second retaining ring substantially opposite the primary seal;
- and
- an anti-friction plate disposed adjacent the secondary seal substantially opposite the second retaining ring, the anti-friction plate cooperating with the second retaining ring, the firewall, and the penetrating member to define a seal cavity between the anti-friction plate and the penetrating member when the firewall sealing assembly is mounted to the firewall.
Dependencies are inferred from the claim text.