Pneumatic Sequential Injection Rifle Valve System
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Solution Overview
Problem
Conventional air rifles are limited by low operating pressures and diminishing gas energy, restricting the type and size of projectiles they can launch due to inefficient energy transfer and propulsion mechanisms.
Innovation Solution
Implementing multiple sequential gas injections and an independent valve system within the air rifle, along with a gas reservoir accumulator and projectile impact pre-seater assembly, to maintain consistent high-pressure gas delivery and enhance projectile velocity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single gas injection is used in conventional air rifles, then device complexity is reduced, but projectile velocity and energy consistency deteriorate
Solution Approach 1:
The single gas injection system is segmented into multiple sequential injection valves (first valve, second valve, third valve) positioned at different locations along the barrel. Each valve delivers gas injections at different stages of projectile travel, allowing optimized velocity delivery without requiring a single complex high-pressure system
Solution Approach 2:
The system employs periodic gas injections through sequentially activated valves rather than a single continuous injection. The timed sequence of valve activations creates periodic pressure pulses that maintain consistent projectile acceleration throughout its travel, improving velocity consistency
2Speed
If high pressure gas is used to increase projectile velocity, then speed improves, but energy consistency over multiple shots deteriorates
Solution Approach 1:
The gas delivery system is divided into multiple valves that release gas in sequential portions rather than one large injection. This segmentation allows the system to maintain consistent pressure levels across multiple shots by delivering smaller, controlled amounts of gas at specific intervals during projectile travel
Solution Approach 2:
The system performs preliminary gas injection through the first valve before the projectile reaches optimal velocity point, then follows with additional injections from subsequent valves. This preliminary and staged approach ensures energy is delivered at the most effective moments, maintaining consistency across shots
3Speed
If gas is injected early in the barrel, then projectile acceleration starts, but pressure diminishes before projectile reaches optimal velocity
Solution Approach 1:
Instead of relying on a single early pressure injection that diminishes, the system uses periodic gas injections from multiple valves positioned along the barrel. Each valve delivers a fresh pressure pulse at the appropriate moment, maintaining pressure levels throughout the projectile's travel rather than allowing early pressure to diminish
Solution Approach 2:
The system transitions from a single-point (one valve location) pressure delivery to a distributed multi-point pressure delivery system. By positioning valves at different locations along the barrel's length, pressure is applied in multiple spatial dimensions, ensuring consistent acceleration throughout the projectile's path
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
This approach significantly increases projectile velocity and maintains energy consistency over multiple shots, overcoming the limitations of single gas injection systems by optimizing gas distribution and pressure management.
Implementation Method 1
The one or more propellant gases of an air gun go from high pressure to a lower pressure when propelling a projectile
Implementation Method 2
The pressure within the chamber rises as stored compressed gases are introduced into the chamber
Data Source
AI summary
An air gun configured to propel a projectile without the use of combustion at a preselected velocity is provided. The air gun includes at least one first valve disposed between a chamber and a source of compressed gas, and at least one enhancement mechanism to improve the efficiency of the compressed gas to propel the projectile at a preselected velocity.