Air Cylinder Piston Segmentation for Pneumatic Gun Compression
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Solution Overview
Problem
Conventional air cylinders for pneumatic guns have constant-volume, non-adjustable air storage chambers, leading to low compression efficiency as residual air cannot be reused after firing, resulting in inefficient use of compressed air.
Innovation Solution
An air cylinder design with a piston that divides the air storage chamber into two cavities, where an elastic member, such as an air spring or compression spring, continuously pushes the piston, allowing complete exhaustion and reuse of compressed air, and a seamless steel tube construction with O-shaped seal rings to optimize air utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a constant-volume, non-adjustable air storage chamber is used, then the structure is simple, but the compression efficiency is low due to residual air that cannot be reused
Solution Approach 1:
The air storage chamber is divided into two separate chambers: a first air storage chamber with constant volume and a second air storage chamber with variable volume. This segmentation allows the first chamber to maintain simple structure while the second chamber accommodates residual air for reuse, thereby improving compression efficiency without complicating the overall system.
Solution Approach 2:
The second air storage chamber is designed with variable volume that changes during the compression process. As compression progresses, the volume of the second chamber adjusts to optimize air utilization. This dynamic adjustment enables complete exhaustion of compressed air and improves compression efficiency compared to a static constant-volume chamber.
2Quantity of substance
If the air storage chamber volume is increased to store more compressed air, then the air supply capacity is improved, but the weight and size of the device increase
Solution Approach 1:
The air storage system is segmented into two chambers with different functional characteristics. The first chamber provides stable air supply with constant volume, while the second chamber optimizes compression efficiency with variable volume. This segmentation allows efficient air utilization without requiring a single oversized chamber, thereby reducing overall weight and size.
Solution Approach 2:
The second air storage chamber employs variable volume parameter changes during the compression process. By dynamically adjusting the volume parameter, the system optimizes air compression efficiency and complete exhaustion of compressed air. This parameter change approach achieves effective air storage capacity without proportionally increasing device weight and size.
3Stress or pressure
If compressed air is pressurized from 0 bar to 80 bar for each shot, then sufficient air pressure is achieved, but compressed air is wasted due to unnecessary pressurization
Solution Approach 1:
The system performs preliminary compression to a first pressure level in the first air storage chamber, then continues compression to a second higher pressure level in the second air storage chamber. This preliminary action ensures sufficient air pressure is achieved efficiently, avoiding the waste of compressing from 0 bar to 80 bar for each shot while maintaining adequate pressure for firing.
Solution Approach 2:
The compression process dynamically adjusts pressure levels in two stages: first compressing to a first pressure level, then continuing to a second pressure level. This dynamic pressure adjustment optimizes energy utilization, achieving sufficient air pressure without the excessive waste associated with constant high-pressure compression from 0 bar to 80 bar for each shot.
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 design improves the utilization rate of compressed air by up to 20-30%, allowing efficient reuse and reducing waste, achieving higher air compression efficiency by maintaining pressure above 80 bar and enabling continuous firing without excessive air injection.
Implementation Method 1
an elastic member disposed in the second cavity and capable of continuously pushing the piston towards the first cavity
Implementation Method 2
the compressed air in the air storage chamber can be completely exhausted and injected into a compressed air chamber of a pneumatic gun
Data Source
AI summary
An air cylinder for pneumatic guns including a cylinder body. The cylinder body includes a side wall, a tubular air storage chamber, a piston capable of axially sliding along the side wall, an air charging hole, and an elastic member. The piston divides the air storage chamber into a first cavity and a second cavity. The air charging hole communicates with the first cavity. The elastic member is disposed in the second cavity and is capable of continuously pushing the piston towards the first cavity.