Compressed Gas Gun Gas Path Segmentation and Valve Control
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Solution Overview
Problem
Developing an accurate and efficient compressed gas-powered gun that mimics the form factor of an AR-15 rifle without the need for AR-15 ammunition or a gun range, while ensuring reliable operation and safety features.
Innovation Solution
The design incorporates a lower receiver with a trigger assembly, an upper receiver with a bolt assembly and a gas path system that utilizes a compressed gas power source to fire projectiles and cock the bolt, featuring a select-fire striker-based trigger mechanism and a gas path segmented into three parts for efficient gas flow and valve operation, allowing for semi-automatic and full-automatic modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a compressed gas-powered gun is designed to mimic the AR-15 form factor, then the realism and usability for practice are improved, but the complexity of achieving reliable operation and accuracy deteriorates
Solution Approach 1:
The gas path system is divided into three distinct segments: a first segment providing a path for gas through the upper receiver toward a front end, a second segment providing a path for gas toward the rear end to a valve, and a third segment providing a path for gas into the bolt assembly. This segmentation allows independent optimization of each gas flow path and simplifies the overall system design while maintaining AR-15 form factor compatibility
Solution Approach 2:
A valve is introduced as an intermediary component that controls the release of compressed gas to the bolt assembly. The valve is actuated by the trigger assembly and serves as a mediator between the compressed gas power source and the bolt mechanism, enabling precise control over gas discharge timing and improving operational reliability
2Reliability
If a segmented gas path system with valve is implemented, then gas flow efficiency and operational reliability are improved, but the device complexity increases
Solution Approach 1:
The valve serves multiple functions: it controls gas flow timing, regulates pressure to the bolt assembly, and is integrated with the trigger assembly mechanism. This multi-functionality reduces the need for separate control components, thereby improving reliability without proportionally increasing overall device complexity
Solution Approach 2:
The trigger assembly is combined with the valve actuation mechanism, merging the firing control function with the gas release control. This integration reduces the number of separate components and simplifies the overall system while maintaining reliable operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables a realistic shooting experience without the need for traditional ammunition, providing reliable operation and safety features within the AR-15 form factor, allowing users to practice efficiently and safely.
Implementation Method 1
an efficient high-velocity compressed gas-powered gun
Implementation Method 2
a gas path from the compressed gas power source for firing a projectile through a barrel and for cocking the bolt assembly
Data Source
AI summary
A lower receiver has a trigger assembly. An upper receiver is coupled to the lower receiver. The lower receiver has a bolt assembly and an L-shaped slot. The L-shaped slot has a long leg, a junction, and a short leg. The bolt assembly interacts with the L-shaped slot. The upper receiver has a rear end to which a compressed gas power source can be coupled. The upper receiver has a gas path from the compressed gas power source for firing a projectile through a barrel and for cocking the bolt assembly. The gas path is entirely contained by the upper receiver.