Compressor Piston Air Stop Sheet for Smooth Restart
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Solution Overview
Problem
Conventional air compressors experience reduced service life due to incomplete discharge of compressed air and increased loading when restarted, resulting in additional resistance and fatigue of the air stop sheet.
Innovation Solution
The air compressor features a piston with an air stop sheet having a bending section and collapsible guide lines, allowing the air stop sheet to form an obtuse angle and create an air flowing space, balancing pressure with the atmosphere when stopped, reducing back-pressure resistance and enhancing smooth operation and service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air stop sheet is designed to close the air channel completely when the piston stops, then airtightness is improved, but the piston experiences additional back-pressure resistance and cannot move smoothly when restarted
Solution Approach 1:
The air stop sheet is designed with a bending section that allows it to dynamically change its position and shape. When the piston moves downward, the air stop sheet bends to close the air channel for airtightness. When the piston stops and needs to move upward again, the bending section allows the air stop sheet to open slightly, creating an air flowing space that eliminates back-pressure resistance and enables smooth restart operation.
2Quantity of substance
If the air stop sheet remains closed when the air compressor stops, then compressed air is retained in the cylinder, but the piston hits the compressed air upon restart increasing loading and reducing service life
Solution Approach 1:
The air stop sheet with bending section provides dynamic control of the air channel. During operation, it maintains closure to retain compressed air. Upon stopping, the bending section enables the air stop sheet to open automatically, creating an air flowing space that allows the piston to move smoothly during restart without hitting compressed air, thereby extending service life.
Solution Approach 2:
The bending section design converts the potentially harmful effect of compressed air retention into a beneficial feature. By allowing controlled opening through the bending section, the design transforms what would be a harmful back-pressure into a beneficial air flowing space that protects the piston and extends service life.
3Ease of manufacture
If the air stop sheet is rigid and flat, then manufacturing is simple, but it cannot create air flowing space and causes additional resistance
Solution Approach 1:
The air stop sheet incorporates a bending section that introduces dynamic capability while maintaining relative manufacturing simplicity. The bending section is formed by creating fold lines or creases in the air stop sheet, allowing it to bend and open when needed to create air flowing space, thus eliminating back-pressure resistance without requiring complex manufacturing processes.
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 enables the piston to move smoothly and efficiently, extending the service life of the air compressor and facilitating easy inflation of deflated objects by balancing pressure and reducing resistance during startup.
Implementation Method 1
the acting zone of the air stop sheet turns on relative to the air channel and the conduit so that a pressure of the cylinder balances with an atmosphere
Data Source
AI summary
An air compressor contains a piston actuated by a motor to move in a cylinder. The piston includes an air stop sheet mounted on a top support plate thereof. The air stop sheet includes a bending section having a positioning zone and an acting zone located opposite to the positioning zone and configured to cover an air channel of the piston. The bending section is a boundary axis of the acting area and the positioning zone of the air stop sheet so that a top of the air stop sheet facing the cylinder forms an obtuse angle less than 180 degrees, and a back surface of the acting zone of the air stop sheet backing a top of the cylinder turns on relative to a plane of a top of the top support plate at an open angle θ, thus producing an air flowing space.