Air Compressor Piston Air Stop Sheet Dynamics
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Solution Overview
Problem
Conventional air compressors experience reduced service life due to back-pressure resistance when the piston stops, causing incomplete discharge of compressed air and increased loading on the motor.
Innovation Solution
The piston design incorporates a bending section with collapsible guide lines in the air stop sheet, allowing it to open at an angle θ, creating an air flowing space that balances cylinder pressure with atmosphere, preventing back-pressure resistance and enabling smooth movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air stop sheet completely closes the conduit to prevent air leakage, then airtightness is improved, but back-pressure resistance increases causing reduced service life
Solution Approach 1:
The air stop sheet is designed with a bending section that allows it to dynamically change position between fully closed (during compression) and partially open (during discharge) states. This dynamic adjustment resolves the contradiction by maintaining airtightness when needed while preventing back-pressure resistance during discharge, thereby extending service life.
Solution Approach 2:
The opening angle θ of the bending section is optimized to balance between complete closure for airtightness and sufficient opening for smooth discharge. By changing the geometric parameter of the air stop sheet's bending angle, the system achieves both requirements without compromising service life.
2Productivity
If the air stop sheet remains closed to maintain compression pressure, then compression efficiency is improved, but piston movement becomes difficult due to back-pressure resistance
Solution Approach 1:
The air stop sheet with bending section automatically adjusts its opening angle based on piston position and pressure conditions. During compression, it remains closed for efficiency; during discharge, it opens to allow smooth piston movement, resolving the contradiction between compression efficiency and movement ease.
Solution Approach 2:
The spring mechanism preliminarily positions the air stop sheet to open before the piston reaches the discharge position, preventing back-pressure resistance buildup and ensuring smooth transition from compression to discharge phases.
3Stability of the object's composition
If the air stop sheet is rigidly fixed to ensure stability, then structural stability is improved, but complete discharge of residual air becomes difficult
Solution Approach 1:
The air stop sheet transitions from a rigidly fixed structure to a flexible structure with a bending section that can open to a specific angle θ. This allows complete discharge of residual air while the spring provides restoring force to return to the closed position, maintaining structural stability.
Solution Approach 2:
The air stop sheet is designed as a flexible component with a bending section rather than a rigid plate. This flexibility enables it to open for complete air discharge while the spring mechanism ensures it returns to a stable closed position, resolving the contradiction between rigidity and discharge completeness.
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 enhances the safety and service life of the air compressor by ensuring smooth piston movement and complete discharge of residual high-pressure air, reducing the risk of back-pressure resistance during operation.
Implementation Method 1
the spring pushes at least one air stop sheet (7) to move upward
Data Source
Figure 1
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Figure 3
AI summary
A piston of an air compressor contains at least one fixing bolt (31), (32) configured to fix a plane (3) of a top of a head (2) of the piston in at least one air stop sheet (7). A respective one air stop sheet (7) includes at least one bending section (70), an acting zone (72) configured to close at least one air orifice (21) of the head (2). The head (2) has at least one receiving groove (26) configured to receive a spring (6), the spring (6) abuts against the respective one air stop sheet (7), and the acting zone (72) of the respective one air stop sheet (7) backing a top of a cylinder (13) turns on relative to the plane (3) of the head (2) at the open angle θ, thus producing the air flowing space (Z). The air flowing space (Z) is in communication with the at least one air orifice (21) so that a pressure of the cylinder (13) balances with atmosphere.