Vane Rotor Compressor Friction Reduction via Pivot Mechanism
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Solution Overview
Problem
Conventional rotary vane compressors experience significant frictional wear between the vane impeller and the inner wall of the vane chamber, leading to energy loss, heat generation, and reduced durability, while also having a fixed compression ratio that limits their practical application.
Innovation Solution
The compressor structure features a vane rotor with a radial vane slot and pivotally connecting sections that securely abut against the inner wall of the cylinder, reducing friction and wear, and includes an automatic adjustment assembly and compression ratio regulation mechanism to adjust the compression ratio and function as a pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vanes and vane impeller frictionally slide against the inner wall of the vane chamber, then the compressor can maintain simple structure and continuous operation, but this leads to continuous wear loss, energy loss, heat generation, and reduced durability
Solution Approach 1:
A lubricating oil supply mechanism is introduced as an intermediary substance between the vanes/impeller and the inner wall of the vane chamber. The lubricating oil forms a protective film that reduces direct frictional contact, thereby reducing wear loss and energy loss while maintaining continuous operation. The lubricating oil circulation system includes oil supply passages, spray holes, and return passages to continuously replenish and remove the lubricating oil.
2Reliability
If the gas outlet and gas inlet have fixed positions, then the compressor structure remains simple and stable, but the vanes and vane impeller apply frictional force to the same fixed contact portion, causing apparent denting and affecting airtightness and quietness
Solution Approach 1:
The gas outlet and gas inlet are made movable relative to the vane chamber through a rotation mechanism. The cylinder can rotate relative to the vane chamber, causing the gas outlet and gas inlet positions to change dynamically during operation. This dynamic positioning distributes the frictional force from the vanes and vane impeller across different portions of the inner wall, preventing localized denting and maintaining airtightness and quietness.
3Adaptability or versatility
If the compressor has a fixed compression ratio design, then the structure remains simple and manufacturing is easier, but the practical application range is seriously limited
Solution Approach 1:
The compression ratio is made adjustable through a height adjustment mechanism. The cylinder height can be adjusted relative to the vane chamber, allowing the compression ratio to be dynamically changed according to different application requirements. This enables the compressor to adapt to various working conditions and expand its practical application range while maintaining a relatively simple overall structure.
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 effectively reduces wear and energy loss, allows for adjustable compression ratios, and enables the compressor to function as a pump, enhancing its practical application range by improving durability and operational efficiency.
Implementation Method 1
the vane pivotally connecting sections of the vane drive the cylinder to rotate with the vane rotor so as to take gas from the gas inlet into the vane chamber. After compressed, the gas is exhausted from the gas out let to complete gas compression operation.
Implementation Method 2
The capacity of the vane chamber 71 between two adjacent vanes 80 is gradually reduced so that the gas passing through the vane chamber 71 between two adjacent vanes 80 is compressed into high-pressure gas.
Data Source
AI summary
A compressor structure includes a vane rotor and a cylinder eccentrically disposed around the vane rotor. The vane rotor has a vane impeller. The vane impeller is in tangential contact with the cylinder to define an eccentric crescent vane chamber. A vane is radially slidably received in the vane impeller. An outward extending top end of the vane tightly abuts against the inner circumferential wall of the vane chamber, whereby the vane chamber is partitioned into an intake section and a compression exhaustion section. When the vane rotor rotates, the vane is driven to drive the cylinder to complete gas compression operation. When rotating, the vane is simply swung at a fixed position of the cylinder, the friction of the compressor can be lowered. The communication of the gas outlet is regulated so that the compression ratio of the compressed gas exhausted from the compressor can be changed.