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Fuel line feeding the auxiliary power unit of an Airbus A340.. A fuel line is a hose or pipe used to transfer fuel from one point in a vehicle to another. The United States Environmental Protection Agency defines a fuel line as "all hoses or tubing designed to contain liquid fuel or fuel vapor.
Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.
The Dzus fasteners (gold coloured circular objects) fastening the cowling panels of the 1930s Hawker Hind. The Dzus fastener, also known as a turnlock fastener or quick-action panel fastener, [1] is a type of proprietary quarter-turn spiral cam lock fastener often used to secure skin panels on aircraft and other high-performance vehicles.
Circular connectors commonly use backshells, which provide physical and electromagnetic protection, whilst sometimes also providing a method for locking the connector into a receptacle. [18] In some cases, this backshell provides a hermetic seal , or some degree of ingress protection , through the use of grommets , O-rings , or potting .
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Another form of direct impingement using a fluted chamber instead of a gas port. With this operation, the gas circumvents around the chambered cartridge through the grooves of the fluted chamber surpassing through the locking lugs to the front of the bolt carrier that operates as a gas piston unlocking the bolt to cycle the weapons operation. [17]
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