Double-Acting Oil-Free Air Compressor for Balanced High-Pressure Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicle-mounted air compressors face challenges with unbalanced stress and increased vibration due to rising exhaust pressure, which affects the balance and service life of single-cylinder piston type compressors, and existing solutions do not adequately address these issues.
Innovation Solution
A vehicle-mounted electric oil-free air compressor design that integrates a double-acting piston with primary and secondary compression functions, utilizing a flywheel shaft driven by an elastic body and featuring primary and secondary intake/exhaust valve pieces to balance piston stress and reduce vibration, ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If exhaust pressure is increased to meet higher requirements, then compression force increases, but stress becomes more unbalanced and running vibration is enhanced
Solution Approach 1:
The patent divides the single-cylinder compression process into two separate stages: primary compression (first cavity) and secondary compression (second cavity). This segmentation allows the piston to perform compression work in two distinct phases, balancing the stress distribution and reducing vibration while achieving higher exhaust pressure.
Solution Approach 2:
The patent introduces a spatial dimension by creating two separate cavities (primary and secondary) within the compression system. This dimensional expansion allows the compression process to occur in multiple spatial zones, enabling stress balancing through alternating compression cycles in different cavities.
2Stress or pressure
If exhaust pressure is increased to meet higher requirements, then compression force increases, but running vibration is further enhanced
Solution Approach 1:
The patent segments the compression process into primary and secondary stages occurring in separate cavities. This segmentation distributes the compression forces over time and space, reducing the peak vibration forces generated during compression while maintaining high exhaust pressure.
Solution Approach 2:
The patent employs periodic alternating compression cycles between the primary and secondary cavities. The piston alternates between compressing air in the first cavity and then the second cavity, creating a rhythmic pattern that balances vibrational forces and reduces overall running vibration.
3Volume of moving object
If a single-cylinder model is used to fit limited vehicle space, then space occupation is reduced, but stress balance is difficult to achieve
Solution Approach 1:
The patent nests the second compression cavity within the overall compressor structure, allowing two compression stages to coexist in a compact arrangement. The primary and secondary cavities are integrated in a space-efficient manner, enabling dual-cavity functionality within a single-cylinder footprint.
Solution Approach 2:
The patent utilizes spatial dimensioning by arranging primary and secondary cavities in different spatial zones within the compressed volume. This dimensional organization allows two compression processes to occur simultaneously or alternately in a compact space, maintaining stress balance without increasing overall compressor volume.
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 achieves balanced piston stress and reduced vibration, leading to a stable and efficient operation of the air compressor, enhancing its service life and maintaining low vibration levels.
Implementation Method 1
a flywheel shaft driven by an elastic body
Implementation Method 2
primary and secondary compression functions
Data Source
AI summary
A vehicle-mounted electric oil-free air compressor, including a motor, a box body, a piston, and a flywheel shaft. The motor is fixed on the box body, a cylinder cover is at the top of the box body, a main shaft of the motor includes a coupling driving end, the flywheel shaft is driven by an elastic body to rotate. The piston includes a primary intake valve piece and a primary exhaust valve piece, the box body is provided with a secondary cavity, a secondary exhaust valve piece is provided at a vent hole on one side of the cavity, and the primary exhaust valve piece is also a secondary intake valve piece of the compressor, increasing the exhaust pressure. When the piston reciprocates, the stress is balanced and the vibration is small, and with the assistance of a high-efficiency flywheel, the operation of the air compressor is stable.