Used with light machine guns, the pintle is the mounting hardware that mates the machine gun to a tripod. Essentially, the pintle is a bracket with a cylindrical bottom and a cradel for the gun on top. The cylindrical bottom fits into a hole in the tripod, the cradel holds the gun.
An impingement member positioned at the downstream of a substantially concentric-mounted pintle stem of the module provides the function of metering flow and forming the spray angle while maintaining the flow distribution to be axial-symmetric in both mass and velocity plus forming a flow field with non-disturbed angular momentum.
The self-cleaning feature on the pintle serves to improve spray quality and increase the life span of the nozzle service, and is especially beneficial to a burner application where cooling of the hot surface of the deflector is needed.
Second, by introducing the pintle stem with gas-purging means directly to the ceiling of the housing 30 in this invention, both the potential of erosion-induced nozzle damage to the pintle spokes and the compromised spray quality by hard-coking layer on the pintle surface experienced in the prior arts are totally eliminated.
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