OPTIMUM CHOICE OF GAS UNIT GEOMETRICAL CHARACTERISTICS TO ENHANCE ITS EFFICIENCY

Document Type : Original Article

Author

Egyptian armed forces.

Abstract

ABSTRACT
Automatic weapons are considered as an internal combustion engine, where the
driving energy is supplied from the burning of the smokeless propellant charge, it
burns producing tremendous power of hot gases. This power is extensively used in
driving of projectile through the barrel, and the motion of weapon mechanisms that
leads to the full automation of weapon functions.
In order to achieve the second goal of gases usage, a constructional arrangement is
fixed on weapon barrel, this arrangement allows gases to branch and drive the main
moving weapon component, this component is known as the breech block carrier [1].
The motion of which is responsible of moving all other mechanisms in automatic
weapon.
The regulations and controlling over the output from the gas unit are affected
basically by the changes of the geometrical characteristics of the gas unit. In this
work, the variations of these geometrical parameters of the gas unit and their
reflections on its efficiency have been studied. The present study facilitates the
choice of effective parameters specially when designing a new weapon or modifying
the power of an existing weapon.

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