Patent ID: 8439308

Claim:
A pressure relief apparatus for an engine compartment having a wall and an opening in the wall, comprising: a door panel arranged in blocking relationship to the opening in the wall of the engine compartment, a plurality of hinges mounted to an inner surface of the wall for coupling the door panel to the inner surface of the wall of the engine compartment, a spring assembly coupled to each hinge, wherein the spring assembly includes a canister having an open end and a spring element housed within the canister, and a support fitting mounted to the inner surface of the wall and having a portion extending toward the open end of the canister for applying a compressive force on the spring element, wherein the spring assembly is coupled between the hinge and the support fitting, wherein the spring element has one end portion communicating with the open end of the canister, and the support fitting portion is positioned against the one end portion of the spring element.