Rotary Compressor Two-Stage Compression Planar Integration
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Solution Overview
Problem
Conventional rotary compressors with separate first and second rotary compressor elements increase the size and number of components due to vertical arrangement, leading to a larger height and more components.
Innovation Solution
A rotary compressor design where the first and second compression stages are integrated in the same plane, sharing components, with an annular piston and cylinder configuration, and a blade system that compresses fluid in two stages, reducing the number of components and size by having the low-stage and high-stage compression chambers adjacent to each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If first and second rotary compressor elements are vertically arranged in different planes, then two-stage compression is achieved, but the height of the whole compressor is increased
Solution Approach 1:
The patent merges the first and second rotary compressor elements into the same plane, combining two compression stages that were previously vertically separated. The first compression element and second compression element are arranged side-by-side in the same horizontal plane, sharing common structural components and reducing the overall height of the compressor while maintaining two-stage compression functionality.
2Adaptability or versatility
If first and second rotary compressor elements are completely separately formed, then each element can be independently designed, but the number of components of the whole compressor is large
Solution Approach 1:
The patent implements universality by designing common components that serve multiple functions for both compression elements. The casing, drive mechanism, and sealing structures are shared between the first and second compression elements, reducing the total number of components. Each compression element can still be independently designed for its specific compression ratio requirements while utilizing the shared universal components.
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 reduces the number of components, minimizes vibration and noise, enhances efficiency by controlling refrigerant flow, and facilitates compressor design with reduced pressure loss and lubrication issues, while maintaining high-performance two-stage compression.
Implementation Method 1
the rotation mechanism (20) compressing a fluid by relatively rotating the cylinder (21) and the piston (22)
Implementation Method 2
an annular piston (22) contained in the cylinder chamber (50) eccentrically from the cylinder (21) and sectioning the cylinder chamber (50) into an outer compression chamber (51) and an inner compression chamber (52)
Data Source
AI summary
A rotary compressor includes a rotation mechanism, an annular piston and a blade. The rotation mechanism has a cylinder with an annular cylinder chamber. The annular piston is contained in the cylinder chamber eccentrically from the cylinder and sectioning the cylinder chamber into an outer compression chamber and an inner compression chamber. The blade is disposed in the cylinder chamber and sectioning each of the inner and outer compression chambers into a high-pressure side and a low-pressure side. The rotation mechanism compresses a fluid by relatively rotating the cylinder and the piston. The outer compression chamber serves as a low-stage side compression chamber for compressing a low-pressure fluid into an intermediate-pressure fluid. The inner compression chamber serves as a high-stage side compression chamber for compressing the intermediate-pressure fluid compressed in the low-stage side compression chamber into a high-pressure fluid.